I swear, these videos just keep getting better!!!! This is definitely my favorite channel, I'll never stop watching! I love the speaker and sound videos the most though, they're my favorite, so it's no wonder! Keep it up!
Agreed. Scientific method through-and-through! I love the long-format, quantifiable, and iterative results. This work puts so much truth back into practical engineering in sound... helping to rectify more than two decades worth of audio-mythology on the interwebs!
Im looking for a Circular coopper tube video. where a magnet is spinning inside. and powering up the outside of the copper tubes. while spinning freely . because of some kinda gas imploding and exploding inside the tube. and than suddenly creating a ROYAL RIFE Telescope thingy .20000x magnification! . See the DNA of a acient relic. :) me
Honestly, i find that most music isnt at its best because of speakers. Just wearing my decent headphones i can hear a clear difference from these than a tradition speaker
This gentleman is willing to share all his knowledge on sound and speaker design and ask for nothing in return. I find that extremely decent and humbling.
Imagine if the rest of humanity was the same and we worked together that way with the sole purpose of advancing as a species and money wasn't involved? We'd preserve this beautiful planet and all the life on it, and we'd all have the best of everything... No povity, no hunger no war... "you may me a dreamer"
well fancy being able to comment on two of your subscriptions at the same time.... This kinda confirms that my choice in subscription is correct and true... Feeling all warm and fuzzy right now LoL...
yeah about an hour worth of technical bs to explain what everyone doesn't need or cares to know.. $20 bluetooth speakers $10 earpods slaps, its 2024 guys wake up we don't need bulky electronics when we have mobile tech.
You, my friend, are a layman's dream instructor! You've helped me, in retirement, re-discover a forgotten passion! You are now part of my morning informational exercises. Thank you!
I finally figured out why I love this channel so much. It makes me feel like I'm back in a university physics class listening to a trusted professor who makes complicated things as clear as glass.
I had one such professor throughout my entire Masters and Ph. D. programs. I never could tell what they were talking about or even why...and I worked hard. I truly envy anyone who had a guy like this teaching them.
As I read these comments,and such,..Almost EVERY one of them,are referring to something I ,immediately kinda giggled ..as I watched ,...lol.. TBH, ..as an "un-educated",.. well,comparatively speaking,..I wasn't fortunate enough to have attended any Literal, "colleges",..Although,..through the years,especially these,.. past several ,or so...Ive came to realize, MOST people,..more times than NOT,..are NOT ..in any way interested in w.e. it is that Im usually ATTEMPTING, to discuss with them,...LOL... And..THEY,w/out a doubt WOULDNT FINDCTGAT LAST COMMENT FUNNY,...LOL... Anyway,..point being,My ABSOLUTE,..as well as LIFELONG,...interest,..in science,. Especially physics,and such,..Since I've done mostly construction,but a LOAT OF WELDING,and such...ALL OF THE THINGS,NTM,..IM CONFIDENT,THE COUNTLESS BOOKS IVE READ TBROUGH THE YEARS ,HAVE PLAYED AN OBVIOUS FACTOR IN INFLUENCING MY ...HIPPIE, GEEK,METAL HEAD,REDNECK, GARDNER, AND "GENERIC AUDIOPHILE" ....S E L F ... BUT,..I FOUND, DAMN NEAR 3/4 or so of the comments were ..almost to the word ,. .some of the comments I had in mind... I was actually thinkin ...somebody's fkn w/me,..lol To conclude, I ABSOLUTELY AGREE,. with the comments referring to this fella,who HAS a WORKING KNOWLEDGE,..of these complicated terms,scenarios,etc..Yet,instead if keeping it complicated,as if to basque in the Greatness he possesses, as It seems people are prone to do,..just outta pure,...I think the fault,...is BEING HUMAN... LOL...BUT ,..NO HE HAS AN EVIDENT,AND V.M. ,..ALIVE,... PASSION,AND ELEVATED INTEREST THATS OBVIOUS,... AND HIS HUMBLENESS I THINK,. W/O QUESTION,... GIVES HIM THE ABILITY .. TO PUT CERTAIN THINGS INTO A KINDA " VISUAL LAMENS TERMS". As a DIRECT result,. IF,.. his authentic,and CALIBER .,..of ..."LOVE ".. In,for,and on .. the subject matter.
This was an EXTREMELY well explained video of so many different scientific and engineering phenomena - a big bravo for this effort! It takes a special person to be able to explain these concepts in language that can be easily understood.
@@stephengatley8144 Didn't matter what volume I chose. It was too loud and annoying compared to his voice. He should have turned it off but because he has excellent hearing I believe he was able to mentally shut it out and not notice the problem.
I've built some speaker boxes in my day. This answered so many questions I could never figure out on why these speaker box builds sounded like garbage cans, no matter what speaker or amp or song. I could hear it, clients couldn't and didn't care. Now I'm throwing my wallet at my screen. Thank you for your videos and being so detailed and easily understandable. This is the kind of teaching I absolutely enjoy learning from!
@@TechIngredients Now I have so many questions! Could DynaMat be used instead? Could you get the same damping by gluing the veneer pane on the outside? Could I take a good pair of vintage speakers and apply these techniques to make them better?
@@warrenbell950Depending on the vintage speakers, there is a good chance that the cabinet resonance was leveraged to augment the drivers - the crossovers may also have been chosen to address cabinet resonance. I generally wouldn't recommend it as a treatment for vintage speakers - either they are good, and you stand to ruin them, or they are bad, and they aren't worth the effort IMHO. DynaMat is a choice, but not as good as the 2part treatment he used - you can also pick up a similar material from box stores used to line potable water tanks - it is nearly identical and has the same properties; you can also buy smaller quantities for testing. I personally don't love VT speakers, but the science behind them as well as the wonderful detail of the video makes this a fantastic choice for an educational channel! Love it!
Thumbed up for the ping pong ball analogy for impedance matching cones. I've never heard that before, but instantly understood the analogy. Great stuff!
This is the most comprehensive cabinet resonance discussion I've ever seen. You answered questions that I've pondered about for 30+ years. I absolutely loved your approach, your attention to detail, accuracy and material cost. Thank you soo much, what a great start to my week!
Kudos to getting rid of the myth about MDF being THE material of choice for speakers! Also, great to see fullrange speakers properly used here (small cone impedance matched). The Voight or TQWT designs are decent and easy to build, but you can also get excellent results with TML and horn designs. Regards, D.C., creator of the Cornu Spiral Horn.
I have Parkinson’s and I need new hobbies and new interests for my brain. This is my favorite channel on TH-cam. Occasionally, I have to rewind the video (i’m not sure of the proper nomenclature but I have to rewatch certain sections to understand them!) to understand the concepts but it’s time well spent. I tell all my Smart/curious friends about your channel… It’s Amazing and I love your videos!
Look into music therapy as relates to Parkinson's. Music therapy can help with many aspects of the condition. If you play an instrument, by all means continue at it. The biggie is rhythm. If all you do is knock about on bongos or other hand drums with musical accompaniment, it will help. (It helped my Mom a lot.)
My love of music just went down the rabbit hole with you, and made me hear the world with different ears!!...Thanks for showing me the matrix!!.It seems!..I started life hearing sound, became a musician and learned too feel, and see sound, and make sound, now I can finally understand it's importance of how everyting relates together!! The beautiful, unlimited, and endless effects that sound can create, for the creater, and too for the listener is magic!!...So inspired to learn more, I choose the red pill Morphious!!
Wow, finally I can watch a man of extreme intelligence, excellent teaching abilities and craftsmanship at levels not common to the average person teaching the average person to go for it, build it and do it well. Thank you for your videos. They just get better every time I watch. Well done Sir!
Wow, wish I had this info back in the 80s when I was in my audiophile phase. May have to revisit those days with what limited equipment I have left over. Great video sir!!!
This might just be the best channel on TH-cam. No hyperbole. The quality of information is top-notch. The speaker is articulate and entertaining. Everything is presented in familiar terms such that even laymen like me can understand. The sincerity behind this channel also adds a lot; I genuinely can't help but smile when he says, "Have a wonderful evening. Good night." Thank you for all your hard work.
That look of victory and glory as the master stands cross armed nodding his head in admiration and contentment is my favorite part. I've probably watched this video countless times and it never gets old. An epic upload that will live on forever.
yeh, then id probably actually learn somethings. the "looks" of theese videos is kinda "gray" compared to most "youtube" stuff, but if you blink or snooze a secound you miss something valuable! is he doing this by heart without a script? thats just crazy
Just for future videos, you should turn off any terrible noises when you're not demonstrating something with them. Otherwise great video, I'll have to incorporate some of these ideas into my sound exciter speakers you convinced me to make.
hugely this. :) I wasn't gonna say anything, but since it's a thing now, I'm adding my support for turning off the signal generator once you've demonstrated the effect.
If only more humans could be like this man. Calm, smart, articulate and generous with his knowledge. Thank you for taking the time to explain all the intricate details.
One of the best content channels without all the spin, sensationalism, misleading titles , or juvenile yelling . Interesting and intelligent presentation. We'll done.
I have been an audiophile and electronics hobbyist for 50 years, I went into the military and learned sonar and sound wave behavior because I wanted to know more. I like the way you explain the science and physics and you are spot on. You speak my language keep it up. Great job!
"I have a lot experience with the marine plywoods and I would highly recommend them." This one sentence perfectly encapsulates everything I love about this channel.
@@DanielBrownsan Far more than you might expect. But don't worry, the final tally is based on sound engineering principles and backed up by solid research.
@@ahmadalardah4198 Get the T/S parameters for your speaker, use software like WinISD to calculate box dimensions, and then use MDF/HDF/high grade plywood (your choice).
Maxican When I was a teen I made a large rectangle cabinet for two 15-inch drivers out of quality plywood... Didn’t do any research or even know what I was doing, just hacked it together in a few hours and it sounded brilliant to me :P I guess I was too young and inexperienced to have a discerning ear for quality audio.
Had this for a hobby for some 40- 25 years ago. Have built loads of speakers but lost confidence when I couldnt keep up with the phase linear filters. Mind is burning again. Your channel is often hit by a state of genious! Wow! Fredrik
Bravo! Exactly what I was thinking when it finally ended. I would love to build these, but what did the finished curve look like? How much bass did you coax out of those little drivers? After all, you're the one with the test equipment and anechoic chamber.
@@johnny7254 the final product's performance is still a synergistic result of the source, speaker, enclosure, room, and what's in that room, and further - how that room is constructed even plays into what "you" actually hear. Everything resonates. Those resonances cause harmonic distortion. This means even your walls affect the tone of your listening room depending on how dense or flexible they are. ;)
@@MotivatedMetalworks You'll get no argument from me on anything you've written. Nevertheless, it is more than a mere matter of convention, that we derive specifications for speakers. It is the method by which we compare one loudspeaker to another. Even beyond that, given the level of detail and science brought to bear in this presentation, is absurd to leave out any measure at all, by which a viewer could assess the success of the endeavor.
@@johnny7254 fitting those beasts in his chamber isn't possible, so any response curve presented would be flawed. However, he could play them outside and get a pretty good idea. When I build speakers, I try to balance the drivers across the spectrum, and crossover points based on where the curves are most beneficial at the natural roll off points. Once that's done, I design the enclosure to meet my goals - is it a sealed box with no deep base, or can I tune a port to hit another octave lower? I don't agree with the channel's logic or validity testing on material weight/stiffness as the accelerometer was measuring an impossible occurrence with the thump test. Also, floor weight of speakers is a moot point for most applications (outside of aircraft, boats, and possibly cars), while size is often a critical design element. Doubling the speaker walls increases the outside dimension, as the inside is a calculated and highly constrained space. In most cases, MDF with proper internal bracing will outperform the same thickness plywood, while benefitting from a lower cost. Transmission lines and horns in general are the exception, but he doesn't state this or why - you can't brace a horn like a ported box, because you'll fuck it's performance up. So in these enclosures, you need stiffer materials.
@@johnny7254 Something else comes to mind when thinking about this video. About 30 years ago, Popular Mechanics had an article teaching the reader about transmission tubes, and how you could build a subwoofer out of a 4" Realistic (Radio Shack hadn't fallen off their original business model yet, at that time) woofer and PVC fittings. What the article failed to disclose is that while the micro sub would hit 40hz, it was anemic and not musical sounding doing it. Planars, infinite baffles, and line arrays all have impressive sonic qualities while also suffering some significant drawbacks. Voigt enclosures aren't exempt either, as they tend to lack authority in the bottom end, or as with folded horns, end up being gigantic enclosures to play through the whole spectrum. Voigt's share a commonality with planars and infinite baffles, in that the linear distance from the edge of the cone and the port will have a direct impact on where phase cancellation occurs. At the end of the day - there is no perfect speaker enclosure, and we need to balance our designs with regards to perfection and reality and hope we can afford the point we wish to land on between those two ends. :)
As an old speaker builder I learned a few things I can use but really appreciate the manner in the way you demonstrate the principles! I enjoy learning the science behind the project and you did a great job teaching us just that! A very warm "thank you"! Definitely subscribing!
im happy to see around 47:30 the smile on his face, he looks so proud and i love it. when you put alot of time into something like that you should be proud.
This channel is awesome! Some people might think that watching a guy talk about speakers for 30 mins is boring but it is really interesting. Keep on making videos!
It is just a shame he did not pick a better piece of music for the demo. I found the official download for it and the bass is clipping making it distorted.
Was waiting for his son to point hysterically at the tone generator but nope. Amazing video though!
5 ปีที่แล้ว +35
He really, really should have. It is a general problem on the channel that there is too much background, though. It happened several times during the turbine series, and now this as well.
It would have even been worth removing the tone in post, the following explanation would be much more pleasant. Lots of free tools to do that, like ReaFIR.
Agreed. However, since it's a fixed frequency, you can move your head around a bit to find a null (if you're listening to speakers) and make it a bit less annoying. :D
I love this channel!!! Imagine how differently school would be viewed if teachers were half as good as this guy. (Never going to happen, but what is cool, is that unlike the education system, the best can be shared to anyone/everyone) TH-cam for the win!
Guess I was pretty fortunate, as the science teachers I had in High School WERE this good, and were such a tremendous inspiration to me that 40 years later I still can't get enough! I don't doubt my last breath on this Earth will probably happen when I'm watching a science video or tinkering with some nifty new technology.
I love it when someone presents a topic and they go into details on different details; they don't just know their topic at hand, but know related topics to a relevent high degree. I'm loving this video. He sounds like my mind talks on different topics. I have no idea what he's talking about most of the time, but it's convincingly expert level 11 and I wager if anyone disagreed with him, they'd better be ready with a full explanation and sound logic.
I guilt a pair of Voigt Pipes very similar to those in this video about 15 years ago. They sounded very good, especially in terms of mid-range and soundstage. The mid-bass was also sufficient but could likely have benefited from addition of a sub-woofer for added slam. Eventually, I added a tweeter to add "air" to the system. Fostex produces a broad line of appropriate yet affordable drivers for this and similar designs.
@@dougyt261 Might be much louder in recording ^^ Also while he is very fit I guess with age your higher frequency hearing is worsened so I guess for him it was just not loud at all
I love this channel. I swear the tone generator was left on for comdic relief. I was giggling. He kept going as not a care in the wind. It shows how interested we are in the videos u guys make. When it stopped. relief!!! They do such a amazing job balancing technical theory to actual real world observations and concepts anyone could replicate and understand. Plus the stuff is just cool. Whoever says science ain't fun, haven't seen this channel. I want a shop like yours.
"And that creates what's called a frequency comb, of spikes and troughs in the amplitude of the sound" Me: Ah excellent. "That's not a good thing." Me: oh no.
I searched on ebay to find the same knife you used, and also stabbed out my own eye. I also consulted with my daughter to use the same knife if he ever uses the same technique in the future and she will likewise gouge out her own eye if he does this again.
Speakers = Great. Teacher = Fantastic. You face at the end = Priceless ! I would have had my Master's degree in sound engineering with your amazing teaching abilities. I have to call you Master or Sensei of demonstration. Cheers Sensei !
25:31 -It is cheap -It is easy to machine, it's cheap -It is relatively inexpensive and easy to obtain -And it's cheap And did we mention it's cheap? I don't think I can ever stop smiling after that.
@@myxfit Relatively, yes. He explains this in the video. It's why fibreboard is used in so many cheap wooden things these days. For example, my desk is LDF and the speakers I used to haul as a DJ had a MDF enclosure.
Thanks for sharing this priceless knowledge and for undergoing such a massive undertaking so I could build myself some impressive speakers for “comparably” “cheap “ and not only appreciate what I built and how it sounds but understand why and how it works and sounds the way it does. My Subscription payed off in a big way thanks!
There is another guy who has a series of speakers he builds using quality components. Since i have never built a set I have no idea if they rival some of the outrageous speakers costing over 5k and up.
Yah um, as smart as as he is, and as well as he explains it all, he's also, obviously, quite hard of hearing. It was incredibly difficult to pay attention to the info with that loud, high pitched tone going on.
To say the worlds best speaker definitely leaves him open to criticism these are very good but can be outperformed by a full range electrostatic there is one made by the stage accompaniment company
No frequency response analysis of the final product - I think you forget the somewhat vital last step? Can we assume there will be another video along shortly where you actually do a frequency sweep? You've shown us you've got the equipment and the prototype, so what are you waiting for? Nice groundwork and great explanation - now give us a the home run. We are cheering you on!
The spl of the full-range Tang Band will rise as frequency increases, starting somewhere around 1.5 kHz and a significantly higher level at the upper limits of what the speaker can produce. This is a baffle step that all full-range speakers produce. A small -6dB / octave compensation circuit, an inductor in series with the driver and a resistor in parallel with that inductor (a BSC) has to be added. This tunes the higher range of the speaker's frequency response to the width of the front baffle. I'm pretty sure there's a calculator on the net somewhere...
@@stephenmackellar5072 I've also read about 1.5 way speakers, using a second copy driver just below but with an inductor to form a baffle step but adding extra bass, allows you to "possibly" cut some crossover components too.
Yeah, plus his demo recording at the end gives a good perspective from the POV of a giant robot laying down in front of the speakers. My head isn't 4ft wide and I'm not going to be crouching down off-axis to listen to them. The recording objectively sounds like rubbish, and is such a let down after such an awesome video!
Man the mdf comments had me dying. I've been binging your videos and I appreciate how you're very straightforward; lots of detail but no filler. These videos have been incredibly informative and when I get the chance I'd love to build a set of these or the DML speakers. Thank you!
The other problems it has are that it's a bear to work with, especially when it comes to screws and glue, and the second is that it LOVES moisture. In a very bad way. It's really a terrible material to build speakers out of but it is CHEAP and works well enough, as long as you are willing to put up with the outrageous weight. Note that you will find many PA speakers now being built out of composites and specialized resins. The last one I worked with - the entire speaker was 1/3 the size of my entire body and weighed 20 lbs. Very nice. :)
After watching this great technical and educational video I am now inspired to duplicate this build. I can’t wait to start. Thank you for your dedication to perfection and great detail. Please keep it up !!
Why did it take me so long to watch this! I love this long-form in-detail content. It's getting rare these days. I'm really glad I finally took the time to watch.
I just decided this channel is my favorite one without any hesitation, I admire your enthusiasm. I learned a lot in single video and I will learn more for sure with other videos....TWO THUMBS UP!!
1: This video should be a "sticky" on DIY audio. So much valuable info. 2: Parts Express should be sponsoring you. I found this video especially useful as I am in the process of building my own speakers. I would be very interested in seeing the SPL vs Frequency graph for this speaker. Nice work!
In high school, I built a tuned tube speaker set in the back of my truck. I purchased several sets of speakers from different (cheap) manufacturers with a high efficiency and different diameters. The speakers were mounted in handmade mounts to adapt them to 4" tubing. Then, the speakers were characterized with a microphone set at 3 feet from the front of the speaker, with the speaker mounted on a stand 8 feet off the ground outside. Being in the woods with very dense trees, the background noise was minimal. A sweeping sine wave was then applied to the speaker from 10Hz to 20kHz, taking a peak reading from the mic. The exact figures were not important for this exercise; it was the comparative data which was needed. The characteristic curves were plotted and then over laid to see how the speakers preformed compared to each other. This showed a great overview of how the speakers self resonated. Starting with the speaker with the lowest self resonating frequency (12Hz if I remember correctly), target frequencies were calculated that would fall between the first and second harmonic of the speaker. Speakers were then selected that had self resonating frequency that was close to these frequencies. Given no speaker was exactly what was needed, the speakers were mounted back into the test fixture and weight was added or subtracted from the cone to decrease or increase the self resonating frequency of the speaker. Given the final application of the speakers, polyurethane sealant was applied to the cone to both seal the fibers and increase the weight. Once the speakers were tuned, giving a range from 12Hz up to 2kHz, 4" schedule 80 PVC pipe was carefully cut to 1/4 the desired frequency. Clear PVC primer was dumped into the pipe, and the pipe was rolled around to melt a thin layer of the PVC inside the tube. The primer's solvent would quickly flash off, leaving behind a more dense layer of plastic inside the tube. This, and the extra texture from the treatment process, took out the mechanical echo sound. The speakers were then mounted to the appropriate tube, and the tubes were mounted to a rack in the back of my pickup truck. The rack was mounted into the peg holes, so it could be lifted out as one unit. The 12Hz tube stuck out the end of the truck substantially. The use of the system was specifically for beach parties where I was responsible for bringing the firewood. This meant I was hauling a trailer, so the overhang was not a big deal. To cover the higher frequencies, I had a 14"x6" loud horn. All of this was run off a 100W RMS amplifier with an over engineered passive bandpass filter network which used the induction of each speaker as part of the filter. This helped to reduce the filter losses to a very minimum. That sound system was AWESOME. I could put on just about any song and go walk down the beach. At a quarter mile away, you could still understand the words. Best of all, it did not blow out your ears standing near the truck.
20:57 When I was younger I used to put my cellphone playing music in a large glass or coffee mug and it sounded a lot better than without it, this is the same principal as what you're doing here haha!
Awesome,clear concise delivery of high level knowledge...delivered in such a perfect and interesting manner...we all wish we could have had teachers like this noble man...would have made an extraordinary difference to attention at school. Greatly appreciate this teacher.
Hell yeah I've got 53 minutes for that! In a vacuum, I find one semi-reliable indicator of quality technical content on youtube is when someone publishes an edited, non-livestream video longer than the likely attention span of a plurality or majority of prospective viewers :). In seriousness, this was a fantastic video essay or whatever you want to call it and absolutely no longer than it needed to be, loved it! Thanks and keep up the good work.
Hi, just came across this a few hours ago. WOW! I built my first set of speakers back in 1978, they lasted about 20 years. I've used Mission 753's since with replacement drivers and x/over components, which I've installed myself. They are still working. I would really like to build these but I don't have the space to do the construction, shame. Even via utube compression, the sound is fab. Well done to you, sir. A great vid explaining the construction/design plainly and simply. One can still dream of the good things.
I flip to my Schitt Modius Dac, 1/3W OTL Tube amp and some Sennheiser HD600's for his playback example - like I'll get to hear HIS speakers somehow lol :D
Just came across you. This is the third video I've watched. We align. Your level of explanation is just at, and pushes, the limit for my ability to absorb. Thank you.
47:28 *I am a genius* face. Congratulations! I really love listening to records and CDs and this video has encouraged me to start thinking on making my own speakers
Thanks for the great content. Im in a college class about vibrations. I think its interesting how vibrations and damping are understood in a real world example. (oscilloscope) Thanks for reading all the comments and have a nice day.
I swear, these videos just keep getting better!!!! This is definitely my favorite channel, I'll never stop watching! I love the speaker and sound videos the most though, they're my favorite, so it's no wonder! Keep it up!
bless you for knowing grammar and spelling
Agreed. Scientific method through-and-through! I love the long-format, quantifiable, and iterative results. This work puts so much truth back into practical engineering in sound... helping to rectify more than two decades worth of audio-mythology on the interwebs!
"Precisely" !!!
Im looking for a Circular coopper tube video. where a magnet is spinning inside. and powering up the outside of the copper tubes. while spinning freely . because of some kinda gas imploding and exploding inside the tube. and than suddenly creating a ROYAL RIFE Telescope thingy .20000x magnification! . See the DNA of a acient relic. :) me
Honestly, i find that most music isnt at its best because of speakers. Just wearing my decent headphones i can hear a clear difference from these than a tradition speaker
This gentleman is willing to share all his knowledge on sound and speaker design and ask for nothing in return. I find that extremely decent and humbling.
He might be NWAV guy. 😂
He gets some return from the ad incomes which are very much related to amount of views.
@@teronousiainen4991 i think he's a communist, and this is a plot to tear down amerika!
Imagine if the rest of humanity was the same and we worked together that way with the sole purpose of advancing as a species and money wasn't involved? We'd preserve this beautiful planet and all the life on it, and we'd all have the best of everything... No povity, no hunger no war... "you may me a dreamer"
@@michaelrefuerzo9186, he'd be using his own amp for all these vids if that were the case haha
The tone generator being left on for 5 minutes was a test to weed out those too weak to learn the secrets of sound design
It's absolutely nothing to those of us with tinnitus. **laughs in -6db**
Hahaha good one! But seriously if he put a notch filter on that in post processing that would have been nice...
Plot twist, this guy is actually deaf.
@John D ive found a man not worthy of enlightenment. The sound gods will smite thee
No kidding, it was driving me nuts. It was such a wonderful relief when he finally turned it off!!
This is the most comprehensive and relevant speaker building guide I've ever seen! Really nice work!
Wow, thanks!
Oh, hi Ben! Nice to see you here
well fancy being able to comment on two of your subscriptions at the same time.... This kinda confirms that my choice in subscription is correct and true... Feeling all warm and fuzzy right now LoL...
Applied Science I agree! As a physicist and fellow Gaucho Alum, good stuff Tech Ingredients!
Please also do more acoustics videos, they're fascinating.
Thank you for being the 1st person to describe to me how a speaker cone and enclosure actually works...in a clear yet substantial and succinct manner.
Except he didn't.
yeah about an hour worth of technical bs to explain what everyone doesn't need or cares to know.. $20 bluetooth speakers $10 earpods slaps, its 2024 guys wake up we don't need bulky electronics when we have mobile tech.
@kensargent3817 Clearly you didn't watch it or couldn't understand him.
You, my friend, are a layman's dream instructor! You've helped me, in retirement, re-discover a forgotten passion! You are now part of my morning informational exercises. Thank you!
Seriously, all my 57 years life waiting for this kind of physics explanation and practical uses of the science implicated. Thanks Master
Exactly. Damn, I wish I would've had him as my all of my science professors... I might've actually paid attention and learned something.
I finally figured out why I love this channel so much. It makes me feel like I'm back in a university physics class listening to a trusted professor who makes complicated things as clear as glass.
I had one such professor throughout my entire Masters and Ph. D. programs. I never could tell what they were talking about or even why...and I worked hard. I truly envy anyone who had a guy like this teaching them.
I had a really good physics professor (undergrad) and I just "clicked" with his teaching style. Aced that class. (One of the few!)
physics language non the less
As I read these comments,and such,..Almost EVERY one of them,are referring to something I ,immediately kinda giggled ..as I watched ,...lol..
TBH, ..as an "un-educated",..
well,comparatively speaking,..I wasn't fortunate enough to have attended any
Literal, "colleges",..Although,..through the years,especially these,.. past several ,or so...Ive came to realize, MOST people,..more times than NOT,..are NOT ..in any way interested in w.e. it is that Im usually ATTEMPTING, to discuss with them,...LOL... And..THEY,w/out a doubt WOULDNT FINDCTGAT LAST COMMENT FUNNY,...LOL...
Anyway,..point being,My ABSOLUTE,..as well as LIFELONG,...interest,..in science,. Especially physics,and such,..Since I've done mostly construction,but a LOAT OF WELDING,and such...ALL OF THE THINGS,NTM,..IM CONFIDENT,THE COUNTLESS BOOKS IVE READ TBROUGH THE YEARS ,HAVE PLAYED AN OBVIOUS FACTOR IN INFLUENCING MY ...HIPPIE, GEEK,METAL HEAD,REDNECK,
GARDNER, AND "GENERIC AUDIOPHILE" ....S E L F ...
BUT,..I FOUND, DAMN NEAR 3/4 or so of the comments were ..almost to the word ,. .some of the comments I had in mind...
I was actually thinkin ...somebody's fkn w/me,..lol
To conclude, I ABSOLUTELY AGREE,. with the comments referring to this fella,who HAS a WORKING KNOWLEDGE,..of these complicated terms,scenarios,etc..Yet,instead if keeping it complicated,as if to basque in the Greatness he possesses, as It seems people are prone to do,..just outta pure,...I think the fault,...is BEING HUMAN... LOL...BUT ,..NO HE HAS AN EVIDENT,AND V.M. ,..ALIVE,... PASSION,AND ELEVATED INTEREST THATS OBVIOUS,... AND HIS HUMBLENESS I THINK,. W/O QUESTION,... GIVES HIM THE ABILITY .. TO PUT CERTAIN THINGS INTO A KINDA " VISUAL LAMENS TERMS". As a DIRECT result,. IF,.. his authentic,and CALIBER .,..of ..."LOVE "..
In,for,and on .. the subject matter.
This was an EXTREMELY well explained video of so many different scientific and engineering phenomena - a big bravo for this effort! It takes a special person to be able to explain these concepts in language that can be easily understood.
Thank you!
23:30... for the love of god, turn that thing off!
For the love of god 113 people need to locate the volume knob :)
@@stephengatley8144
And then what? Read his lips?
@@stephengatley8144 Didn't matter what volume I chose. It was too loud and annoying compared to his voice. He should have turned it off but because he has excellent hearing I believe he was able to mentally shut it out and not notice the problem.
@@SPEXWISE Learn to read lips like the rest of us you whiner. (I'm kidding, I'm with you, turn that damn thing off)
Lithostheory I had to FF till he turned it off!
I've built some speaker boxes in my day. This answered so many questions I could never figure out on why these speaker box builds sounded like garbage cans, no matter what speaker or amp or song. I could hear it, clients couldn't and didn't care. Now I'm throwing my wallet at my screen. Thank you for your videos and being so detailed and easily understandable. This is the kind of teaching I absolutely enjoy learning from!
Thanks!
@@TechIngredients Now I have so many questions! Could DynaMat be used instead? Could you get the same damping by gluing the veneer pane on the outside? Could I take a good pair of vintage speakers and apply these techniques to make them better?
@@warrenbell950Depending on the vintage speakers, there is a good chance that the cabinet resonance was leveraged to augment the drivers - the crossovers may also have been chosen to address cabinet resonance. I generally wouldn't recommend it as a treatment for vintage speakers - either they are good, and you stand to ruin them, or they are bad, and they aren't worth the effort IMHO. DynaMat is a choice, but not as good as the 2part treatment he used - you can also pick up a similar material from box stores used to line potable water tanks - it is nearly identical and has the same properties; you can also buy smaller quantities for testing. I personally don't love VT speakers, but the science behind them as well as the wonderful detail of the video makes this a fantastic choice for an educational channel! Love it!
lost me at mar-a-lago pride. some nice info but not worth the stain on my soul. blocked ✌️
@@luminousfractal420 lol
I love how proud he looks , when he turn on the music, a real gentleman with great knowledge 47:19
What tune is that? He knew he did a good thing. Like a dad!
@@stanthology it's dream on by NOWE
th-cam.com/video/ScgcS8mb5Ss/w-d-xo.html
That's nothing to the look on his face at 33:45 when talking about how beautiful the wood is!
I ve never heard bigger bullshit..
@@wazzup7238 You need to get out more ;-) I go through so much bull shit every day...
The sense of pride at the end was priceless. Thank you for sharing your expertise. Best explanation of phasing I’ve ever seen.
I love that there is a channel that explains the science behind the DIY.
Thumbed up for the ping pong ball analogy for impedance matching cones. I've never heard that before, but instantly understood the analogy. Great stuff!
Thanks!
Timestamp?
I second that! It created such an understandable image
Thing is people have seen that desk toy with the same principles.
@@wobblysauce What thing is?
Near the end he looks so smug and proud with what he has created... and rightfully so, because this is excellent work!!!
Best explanation of impedance matching that I've ever heard.
This is the most comprehensive cabinet resonance discussion I've ever seen. You answered questions that I've pondered about for 30+ years. I absolutely loved your approach, your attention to detail, accuracy and material cost. Thank you soo much, what a great start to my week!
Kudos to getting rid of the myth about MDF being THE material of choice for speakers!
Also, great to see fullrange speakers properly used here (small cone impedance matched).
The Voight or TQWT designs are decent and easy to build, but you can also get excellent results with TML and horn designs.
Regards, D.C., creator of the Cornu Spiral Horn.
I have Parkinson’s and I need new hobbies and new interests for my brain. This is my favorite channel on TH-cam. Occasionally, I have to rewind the video (i’m not sure of the proper nomenclature but I have to rewatch certain sections to understand them!) to understand the concepts but it’s time well spent. I tell all my Smart/curious friends about your channel… It’s Amazing and I love your videos!
Look into music therapy as relates to Parkinson's. Music therapy can help with many aspects of the condition. If you play an instrument, by all means continue at it. The biggie is rhythm. If all you do is knock about on bongos or other hand drums with musical accompaniment, it will help. (It helped my Mom a lot.)
That is the proper nomenclature, Ralph. You're one of us, now! ;)
My love of music just went down the rabbit hole with you, and made me hear the world with different ears!!...Thanks for showing me the matrix!!.It seems!..I started life hearing sound, became a musician and learned too feel, and see sound, and make sound, now I can finally understand it's importance of how everyting relates together!! The beautiful, unlimited, and endless effects that sound can create, for the creater, and too for the listener is magic!!...So inspired to learn more, I choose the red pill Morphious!!
Legend has it the tonegenerator is still running 🤯
yeap, 3 weeks later after you posted this can confirm that it's still there 🙄
20-20000hz
LowEndStrings hahahhahaha dying!!!
Best Comment Ever!
You win the comment thread with this one.
Wow, finally I can watch a man of extreme intelligence, excellent teaching abilities and craftsmanship at levels not common to the average person teaching the average person to go for it, build it and do it well. Thank you for your videos. They just get better every time I watch. Well done Sir!
... can't get past just how effortlessly and intrinsically COOL this guy is ...
Wow, wish I had this info back in the 80s when I was in my audiophile phase. May have to revisit those days with what limited equipment I have left over. Great video sir!!!
This might just be the best channel on TH-cam. No hyperbole. The quality of information is top-notch. The speaker is articulate and entertaining. Everything is presented in familiar terms such that even laymen like me can understand. The sincerity behind this channel also adds a lot; I genuinely can't help but smile when he says, "Have a wonderful evening. Good night."
Thank you for all your hard work.
That look of victory and glory as the master stands cross armed nodding his head in admiration and contentment is my favorite part. I've probably watched this video countless times and it never gets old. An epic upload that will live on forever.
25:31
"It is... cheap.., it is easy to machine, it's cheap... err.. it is relatively inexpensive.. and easy to obtain, and it's cheap!"
Got it!
He cheaps more than a fucking sparrow!!!! 😃😂😂😁😁😀😁😁😂😂
martinskanal it’s cheap!
Is it cheap tho I wonder?
Yes but is it low cost as well
So it's cheap?
Holy crap! I learned more in 52 mins than I have in 30 years of building speakers, thank you. I'm now subscribed
Thanks!
I would have liked to have you as my teacher in my younger engineering studies.
Jean Pierre, J,ai écrit exactement le même commentaire!... longue vie à Tech Ingredients !
Doctorbass 2 saying the same comment for the guy means he is really a good quality teacher.
SAMEEEEEEEEE
yeh, then id probably actually learn somethings. the "looks" of theese videos is kinda "gray" compared to most "youtube" stuff, but if you blink or snooze a secound you miss something valuable! is he doing this by heart without a script? thats just crazy
bunnlose you can hit the replay key if you snooze out! This guy knows what he is taking about. I’m not sure, but you can verify.
Just for future videos, you should turn off any terrible noises when you're not demonstrating something with them.
Otherwise great video, I'll have to incorporate some of these ideas into my sound exciter speakers you convinced me to make.
PLEASE...PLEASE...PLEASE
Please!
I would have posted a reply but my roommate killed me for allowing the tone generator to continue...
hugely this. :) I wasn't gonna say anything, but since it's a thing now, I'm adding my support for turning off the signal generator once you've demonstrated the effect.
Yeah that was brutal
i would KILL for these build plans!
Edit: HOLY SHIT HE HAS THEM IN THE DESCRIPTION!
Now you can kill for no reason
@@kastapostgard5306 l e t s g o o o
lmfao
I know right? This channel is too good to be true in so many ways.
lucky us i think, we know dont get killed :D
If only more humans could be like this man. Calm, smart, articulate and generous with his knowledge. Thank you for taking the time to explain all the intricate details.
Ok, so this is the clearest explanation of speaker design I have ever watched. Thank you!
your face at the end looking at those speakers looks so proud !! and you should be really proud, beautiful speakers... i love them ❤❤
Yea, hes proud smile put a smile on my face too.... good job, really good!
I literally said; aw, he's listening to his babys!
Came here to say the same thing. I don't need to hear the sound. Your face tells the story.
I love it. He tests EVERYTHING. Even the stiffness of MDF vs. plywood...
ikr 😝
After watching the whole thing I feel I deserve a diploma.
Don't you need to pass the final exam, publish and defend your thesis first?
you have to successfully complete the build first
Hey, I'm a millennial, too.
How about a participation medal.
@@prestigeworld-wide8292 That's exactly what us millennials need!
One of the best content channels without all the spin, sensationalism, misleading titles , or juvenile yelling . Interesting and intelligent presentation. We'll done.
Thank you!
I have been an audiophile and electronics hobbyist for 50 years, I went into the military and learned sonar and sound wave behavior because I wanted to know more. I like the way you explain the science and physics and you are spot on. You speak my language keep it up. Great job!
"I have a lot experience with the marine plywoods and I would highly recommend them."
This one sentence perfectly encapsulates everything I love about this channel.
“Marine plywoodS” THERE’S MORE THAN ONE?!? HOW MANY MARINE PLYWOODS DO WE NEED?!?
@@DanielBrownsan Far more than you might expect. But don't worry, the final tally is based on sound engineering principles and backed up by solid research.
Please tell me how make good box for speaker pioneer size 6/9
And what best wood use for that
@@ahmadalardah4198 Get the T/S parameters for your speaker, use software like WinISD to calculate box dimensions, and then use MDF/HDF/high grade plywood (your choice).
Maxican When I was a teen I made a large rectangle cabinet for two 15-inch drivers out of quality plywood... Didn’t do any research or even know what I was doing, just hacked it together in a few hours and it sounded brilliant to me :P I guess I was too young and inexperienced to have a discerning ear for quality audio.
What a great video. I'm going to make this compulsory viewing for my acoustics students at the Academy of Sound Engineering. Thank you!
Had this for a hobby for some 40- 25 years ago. Have built loads of speakers but lost confidence when I couldnt keep up with the phase linear filters. Mind is burning again. Your channel is often hit by a state of genious! Wow! Fredrik
Thanks!
The first hit is free. Now you're mine.🙂
would have loved to see a frequency response curve of the finished speakers.
Bravo!
Exactly what I was thinking when it finally ended.
I would love to build these, but what did the finished curve look like? How much bass did you coax out of those little drivers?
After all, you're the one with the test equipment and anechoic chamber.
@@johnny7254 the final product's performance is still a synergistic result of the source, speaker, enclosure, room, and what's in that room, and further - how that room is constructed even plays into what "you" actually hear.
Everything resonates. Those resonances cause harmonic distortion. This means even your walls affect the tone of your listening room depending on how dense or flexible they are. ;)
@@MotivatedMetalworks You'll get no argument from me on anything you've written. Nevertheless, it is more than a mere matter of convention, that we derive specifications for speakers. It is the method by which we compare one loudspeaker to another. Even beyond that, given the level of detail and science brought to bear in this presentation, is absurd to leave out any measure at all, by which a viewer could assess the success of the endeavor.
@@johnny7254 fitting those beasts in his chamber isn't possible, so any response curve presented would be flawed.
However, he could play them outside and get a pretty good idea.
When I build speakers, I try to balance the drivers across the spectrum, and crossover points based on where the curves are most beneficial at the natural roll off points. Once that's done, I design the enclosure to meet my goals - is it a sealed box with no deep base, or can I tune a port to hit another octave lower?
I don't agree with the channel's logic or validity testing on material weight/stiffness as the accelerometer was measuring an impossible occurrence with the thump test. Also, floor weight of speakers is a moot point for most applications (outside of aircraft, boats, and possibly cars), while size is often a critical design element. Doubling the speaker walls increases the outside dimension, as the inside is a calculated and highly constrained space. In most cases, MDF with proper internal bracing will outperform the same thickness plywood, while benefitting from a lower cost.
Transmission lines and horns in general are the exception, but he doesn't state this or why - you can't brace a horn like a ported box, because you'll fuck it's performance up. So in these enclosures, you need stiffer materials.
@@johnny7254 Something else comes to mind when thinking about this video.
About 30 years ago, Popular Mechanics had an article teaching the reader about transmission tubes, and how you could build a subwoofer out of a 4" Realistic (Radio Shack hadn't fallen off their original business model yet, at that time) woofer and PVC fittings.
What the article failed to disclose is that while the micro sub would hit 40hz, it was anemic and not musical sounding doing it.
Planars, infinite baffles, and line arrays all have impressive sonic qualities while also suffering some significant drawbacks. Voigt enclosures aren't exempt either, as they tend to lack authority in the bottom end, or as with folded horns, end up being gigantic enclosures to play through the whole spectrum.
Voigt's share a commonality with planars and infinite baffles, in that the linear distance from the edge of the cone and the port will have a direct impact on where phase cancellation occurs.
At the end of the day - there is no perfect speaker enclosure, and we need to balance our designs with regards to perfection and reality and hope we can afford the point we wish to land on between those two ends. :)
That tone went on for far too long, but other than that, great video!
As an old speaker builder I learned a few things I can use but really appreciate the manner in the way you demonstrate the principles! I enjoy learning the science behind the project and you did a great job teaching us just that! A very warm "thank you"! Definitely subscribing!
im happy to see around 47:30 the smile on his face, he looks so proud and i love it. when you put alot of time into something like that you should be proud.
i am a carpenter, and that is the cleanest workshop i have ever seen...even in sci fi movies ..great vid !!
This channel is awesome! Some people might think that watching a guy talk about speakers for 30 mins is boring but it is really interesting. Keep on making videos!
You know the video was closer to an hour, right?
I love how proud he looks of the speakers when they start playing. :)
my favorite part.
I would be also.
It is just a shame he did not pick a better piece of music for the demo. I found the official download for it and the bass is clipping making it distorted.
was about to write the same comment
When?
50 years working in audio broadcasting and just now I understand the physic phenomen... Thanks a lot!
Was waiting for his son to point hysterically at the tone generator but nope. Amazing video though!
He really, really should have. It is a general problem on the channel that there is too much background, though. It happened several times during the turbine series, and now this as well.
Right... lol
It would have even been worth removing the tone in post, the following explanation would be much more pleasant. Lots of free tools to do that, like ReaFIR.
Agreed. However, since it's a fixed frequency, you can move your head around a bit to find a null (if you're listening to speakers) and make it a bit less annoying. :D
ya, you can tell there is no humor in that house. No way his son is gonna step out of line.
I love this channel!!! Imagine how differently school would be viewed if teachers were half as good as this guy. (Never going to happen, but what is cool, is that unlike the education system, the best can be shared to anyone/everyone) TH-cam for the win!
Guess I was pretty fortunate, as the science teachers I had in High School WERE this good, and were such a tremendous inspiration to me that 40 years later I still can't get enough! I don't doubt my last breath on this Earth will probably happen when I'm watching a science video or tinkering with some nifty new technology.
He is smart. He is the perfect nerd!
I love it when someone presents a topic and they go into details on different details; they don't just know their topic at hand, but know related topics to a relevent high degree. I'm loving this video. He sounds like my mind talks on different topics. I have no idea what he's talking about most of the time, but it's convincingly expert level 11 and I wager if anyone disagreed with him, they'd better be ready with a full explanation and sound logic.
I guilt a pair of Voigt Pipes very similar to those in this video about 15 years ago. They sounded very good, especially in terms of mid-range and soundstage. The mid-bass was also sufficient but could likely have benefited from addition of a sub-woofer for added slam. Eventually, I added a tweeter to add "air" to the system. Fostex produces a broad line of appropriate yet affordable drivers for this and similar designs.
I did the same and I’d like to upgrade my cheap drivers to a foster 8 inch driver. Would you have a recommendation for a model?
Respect! You deserve complete unreserved respect for your research, work, results, and freely sharing it. Thanks!
48:07 that feeling of accomplishment is priceless. his Face say it all..
Came here to say exactly this. True satisfaction right there.
Best smug face 🤣
still beeping.
my god i want to listen but its painful , forgot to turn of the khz sound
haha
haha yeah it's annoying... I turned off sound and turned on subtitles xD
How can some one so smart leave that ringing for so long
@@dougyt261 Might be much louder in recording ^^ Also while he is very fit I guess with age your higher frequency hearing is worsened so I guess for him it was just not loud at all
I love this channel. I swear the tone generator was left on for comdic relief. I was giggling. He kept going as not a care in the wind. It shows how interested we are in the videos u guys make. When it stopped. relief!!! They do such a amazing job balancing technical theory to actual real world observations and concepts anyone could replicate and understand. Plus the stuff is just cool. Whoever says science ain't fun, haven't seen this channel. I want a shop like yours.
"And that creates what's called a frequency comb, of spikes and troughs in the amplitude of the sound"
Me: Ah excellent.
"That's not a good thing."
Me: oh no.
😆 that made me laugh so hard
Brilliant comment Josh! Cracked me up! Kinda sums my understanding of it- I understand, but I don’t. (But I mostly do.....I think)
🤣🤣🤣
Larry Patterson Exact, your life is totally annoying Larry.
This is the best comment I've seen in months
Why did you leave the test tone playing while ur recording? Holy hell.... I just stuck a butter knife in my eye!
lol me too
I searched on ebay to find the same knife you used, and also stabbed out my own eye. I also consulted with my daughter to use the same knife if he ever uses the same technique in the future and she will likewise gouge out her own eye if he does this again.
Right!?!?
"Whatever! This is science!"
Silly boy, you should have cut an ear off to solve the noise issue - that's what ears are for. - just follow van Gogh's example.
I cant focus on a damn thing he is saying. Something about words... Impedance matching...
Beaming with pride, this is what a meaningful life brings about, not easy but meaningful. Keep up the great work!!
The single most intelligent and well-made video I have seen to date in ALL of TH-cam!
Speakers = Great. Teacher = Fantastic. You face at the end = Priceless ! I would have had my Master's degree in sound engineering with your amazing teaching abilities. I have to call you Master or Sensei of demonstration. Cheers Sensei !
I've had my Voigt horns about 30 years, built from one sheet of plywood. Good to see these get a some exposure, good job.
the explanation about the standing waves at the beginning is one of the clearest I've ever seen
This is the best video about how the speakers work and the science behind it. The 52 minutes is well worth it. Thank you very much.
25:31
-It is cheap
-It is easy to machine, it's cheap
-It is relatively inexpensive and easy to obtain
-And it's cheap
And did we mention it's cheap?
I don't think I can ever stop smiling after that.
But is it cheap?
@@myxfit Relatively, yes. He explains this in the video. It's why fibreboard is used in so many cheap wooden things these days. For example, my desk is LDF and the speakers I used to haul as a DJ had a MDF enclosure.
@@LokiScarletWasHere whoooosh? :)
@@myxfit Fair enough. Hard to tell in written communication.
i hate MDF. i found his breakdown of why someone might use MDF to be quite amusing. glad i'm not the only one.
Thanks for sharing this priceless knowledge and for undergoing such a massive undertaking so I could build myself some impressive speakers for “comparably” “cheap “ and not only appreciate what I built and how it sounds but understand why and how it works and sounds the way it does. My Subscription payed off in a big way thanks!
Your face when it came to sound demo time... Like a proud father.. Love it! :)
I just love how during the music at the end you can’t stop admiring his speakers…well done
I've never wanted to build my own speakers so much! Great video, really good presentation and explanation.
There is another guy who has a series of speakers he builds using quality components. Since i have never built a set I have no idea if they rival some of the outrageous speakers costing over 5k and up.
th-cam.com/users/123Toidvideos
I now understand the man has a sense of humor- otherwise he wouldn't have let that tweeter drone on.
I think he may have noise induced hearing loss. Doubt he noticed that he left it on.
Yah um, as smart as as he is, and as well as he explains it all, he's also, obviously, quite hard of hearing.
It was incredibly difficult to pay attention to the info with that loud, high pitched tone going on.
Psshhh I was enjoying the video until he used that thing. I turned it all the way down and could hear it 2 rooms over
I couldn’t watch after he left the horn unit blasting out. ☹️
To say the worlds best speaker definitely leaves him open to criticism these are very good but can be outperformed by a full range electrostatic there is one made by the stage accompaniment company
He looks so happy at the end!!! When they start playing it looks like he's holding back a giant smile and maybe a tear or two.
Excellent DIY video. All I need now is a workshop, the machinery and the time to spare. Thank you for sharing your expertise!
No frequency response analysis of the final product - I think you forget the somewhat vital last step? Can we assume there will be another video along shortly where you actually do a frequency sweep? You've shown us you've got the equipment and the prototype, so what are you waiting for?
Nice groundwork and great explanation - now give us a the home run. We are cheering you on!
And frequency sweeps at different off vertical/horizontal axis responses and listening heights - all major factors
The spl of the full-range Tang Band will rise as frequency increases, starting somewhere around 1.5 kHz and a significantly higher level at the upper limits of what the speaker can produce. This is a baffle step that all full-range speakers produce. A small -6dB / octave compensation circuit, an inductor in series with the driver and a resistor in parallel with that inductor (a BSC) has to be added. This tunes the higher range of the speaker's frequency response to the width of the front baffle. I'm pretty sure there's a calculator on the net somewhere...
@@stephenmackellar5072 I've also read about 1.5 way speakers, using a second copy driver just below but with an inductor to form a baffle step but adding extra bass, allows you to "possibly" cut some crossover components too.
Yeah, plus his demo recording at the end gives a good perspective from the POV of a giant robot laying down in front of the speakers. My head isn't 4ft wide and I'm not going to be crouching down off-axis to listen to them. The recording objectively sounds like rubbish, and is such a let down after such an awesome video!
I don't think they'll fit in the anechoic chamber ;-)
Very well explained. Air must be pretty thin when ones channel is so high up the quality content. Thank you.
Would the impact of less denser air have a significant impact on the sound?
Man the mdf comments had me dying. I've been binging your videos and I appreciate how you're very straightforward; lots of detail but no filler. These videos have been incredibly informative and when I get the chance I'd love to build a set of these or the DML speakers. Thank you!
The other problems it has are that it's a bear to work with, especially when it comes to screws and glue, and the second is that it LOVES moisture. In a very bad way. It's really a terrible material to build speakers out of but it is CHEAP and works well enough, as long as you are willing to put up with the outrageous weight. Note that you will find many PA speakers now being built out of composites and specialized resins. The last one I worked with - the entire speaker was 1/3 the size of my entire body and weighed 20 lbs. Very nice. :)
speechless at the kind of knowledge you have how practically you have used to create these one of kind master pieces! hats-off to you!
After watching this great technical and educational video I am now inspired to duplicate this build. I can’t wait to start. Thank you for your dedication to perfection and great detail. Please keep it up !!
Why did it take me so long to watch this! I love this long-form in-detail content. It's getting rare these days. I'm really glad I finally took the time to watch.
I just decided this channel is my favorite one without any hesitation, I admire your enthusiasm. I learned a lot in single video and I will learn more for sure with other videos....TWO THUMBS UP!!
This channel is such a treasure trove of incredible knowledge. My only regret is not having found it earlier.
Thanks!
I love the mix of theory and practical demo, you don't just tell you also show.
1: This video should be a "sticky" on DIY audio. So much valuable info.
2: Parts Express should be sponsoring you.
I found this video especially useful as I am in the process of building my own speakers. I would be very interested in seeing the SPL vs Frequency graph for this speaker. Nice work!
25:32 "it is... Cheap. It is cheap. It is inexpensive, and also, it's cheap.
In high school, I built a tuned tube speaker set in the back of my truck. I purchased several sets of speakers from different (cheap) manufacturers with a high efficiency and different diameters. The speakers were mounted in handmade mounts to adapt them to 4" tubing. Then, the speakers were characterized with a microphone set at 3 feet from the front of the speaker, with the speaker mounted on a stand 8 feet off the ground outside. Being in the woods with very dense trees, the background noise was minimal. A sweeping sine wave was then applied to the speaker from 10Hz to 20kHz, taking a peak reading from the mic. The exact figures were not important for this exercise; it was the comparative data which was needed. The characteristic curves were plotted and then over laid to see how the speakers preformed compared to each other. This showed a great overview of how the speakers self resonated. Starting with the speaker with the lowest self resonating frequency (12Hz if I remember correctly), target frequencies were calculated that would fall between the first and second harmonic of the speaker. Speakers were then selected that had self resonating frequency that was close to these frequencies. Given no speaker was exactly what was needed, the speakers were mounted back into the test fixture and weight was added or subtracted from the cone to decrease or increase the self resonating frequency of the speaker. Given the final application of the speakers, polyurethane sealant was applied to the cone to both seal the fibers and increase the weight. Once the speakers were tuned, giving a range from 12Hz up to 2kHz, 4" schedule 80 PVC pipe was carefully cut to 1/4 the desired frequency. Clear PVC primer was dumped into the pipe, and the pipe was rolled around to melt a thin layer of the PVC inside the tube. The primer's solvent would quickly flash off, leaving behind a more dense layer of plastic inside the tube. This, and the extra texture from the treatment process, took out the mechanical echo sound. The speakers were then mounted to the appropriate tube, and the tubes were mounted to a rack in the back of my pickup truck. The rack was mounted into the peg holes, so it could be lifted out as one unit. The 12Hz tube stuck out the end of the truck substantially. The use of the system was specifically for beach parties where I was responsible for bringing the firewood. This meant I was hauling a trailer, so the overhang was not a big deal. To cover the higher frequencies, I had a 14"x6" loud horn. All of this was run off a 100W RMS amplifier with an over engineered passive bandpass filter network which used the induction of each speaker as part of the filter. This helped to reduce the filter losses to a very minimum.
That sound system was AWESOME. I could put on just about any song and go walk down the beach. At a quarter mile away, you could still understand the words. Best of all, it did not blow out your ears standing near the truck.
This is the most enjoyable lecture I've had in years
32:15 “this particular piece of Plywood has been sitting on our shelves for about 20 years” ....Wow. That’s thinking waaaay ahead. Lol.
Once my kids are old enough to hold a camera, I'm going to be him :)
20:57 When I was younger I used to put my cellphone playing music in a large glass or coffee mug and it sounded a lot better than without it, this is the same principal as what you're doing here haha!
Awesome,clear concise delivery of high level knowledge...delivered in such a perfect and interesting manner...we all wish we could have had teachers like this noble man...would have made an extraordinary difference to attention at school. Greatly appreciate this teacher.
It was such a pleasure to spend some time with you during this video. You made my evening, sir
Hell yeah I've got 53 minutes for that! In a vacuum, I find one semi-reliable indicator of quality technical content on youtube is when someone publishes an edited, non-livestream video longer than the likely attention span of a plurality or majority of prospective viewers :). In seriousness, this was a fantastic video essay or whatever you want to call it and absolutely no longer than it needed to be, loved it! Thanks and keep up the good work.
Hi, just came across this a few hours ago. WOW! I built my first set of speakers back in 1978, they lasted about 20 years. I've used Mission 753's since with replacement drivers and x/over components, which I've installed myself. They are still working. I would really like to build these but I don't have the space to do the construction, shame. Even via utube compression, the sound is fab. Well done to you, sir. A great vid explaining the construction/design plainly and simply. One can still dream of the good things.
"I don't always listen to Metallica. But when I do, so does my neighbor"
Check out Crisix
Bob: Hi I'm Bob, I'm in heavy artillery...
Radio DJ: Hi Bob, what can I play for you??
Bob: ANYTHING... JUST PLAY IT LOUD!!!
My neighbors are always listening to really loud drum and bass...
...WHETHER THEY LIKE IT OR NOT!!!
@@jawaring4367 listening? I'm sure they are just vibrating violently, clinging onto their most cherished ornaments waiting for the sub to stop 😂
I must say, those speakers sounded pretty good through my speakers.
Now isn't that ironic
Well said...~
I flip to my Schitt Modius Dac, 1/3W OTL Tube amp and some Sennheiser HD600's for his playback example - like I'll get to hear HIS speakers somehow lol :D
my setup is 3,000 watts so I might be a little close to hearing what he is hearing.
I think you mean that MICROPHONE allowed those speakers to sound decent through your speakers? (Everybody forgets about the microphones.)
Your one video is worth more than my 1 year in diy audio knowledge searching Sir would love to see more speaker and audio related projects
Just came across you. This is the third video I've watched.
We align. Your level of explanation is just at, and pushes, the limit for my ability to absorb. Thank you.
Perfect!
Thanks.
Love the video, but PLEASE turn off that ringing after 5 seconds lol
The thumbnail is hilarious, loving the vids as always. You guys make DIY not only accessible but highly educational as well
Thank you!
Seconded!
The thumbnail kept me away from this vid for a week. And today I am just too bored that I clicked this. Ok. Informative video.
47:28 *I am a genius* face. Congratulations! I really love listening to records and CDs and this video has encouraged me to start thinking on making my own speakers
Thanks for the great content. Im in a college class about vibrations. I think its interesting how vibrations and damping are understood in a real world example. (oscilloscope) Thanks for reading all the comments and have a nice day.