I am reminded of the speakers I never built as a youngster... 35 years ago I didn't have the money or tools to make a decent attempt. Now I don't have the time either! But my nostalgia was piqued sufficiently for me to acquire a replacement copy of 'An Introduction to Loudspeakers and Enclosure Design' (my original is long lost) with the plans to make a pair of Kapellmeisters. It seems unlikely that they'll get made any time soon, but it's a handy little book to have on the shelf.
Everything that comes before the speakers I understand - speaker design is a complete mystery to me ! Glass splinters are the worst of them all ! Thanks for the video !
05:58 🤣🤣🤣 i am a carpenter.... i got a lot wooden splinters, but i always find them, when the Kids are sleeping..... and its "Parents-Time"...😅😅🤣 and my wife screams out when i Touch here..... The only splinters that freak me out, are the small Black splinters from drywall screws... Nice woodworking! Take care Rusty!
That's a shame Rusty. But it was good to see some woodwork anyway :) (Perhaps your bass drivers are not large enough? I would think the horn needs a certain amount of air movement to work, and those size drivers may not be pushing enough air). Thanks, Craig
hi M Sometimes you don't know if something works until you try, unfortunately this is one of those projects, better luck next time. Also stainless steel splinters don't rust, i know iv'e had one for a couple weeks now and can't find it. 🤣👍 See you on next project, Take Care Kev
Thanks for 13 enjoying minutes. Woodwork is fun. Yes. Beds normally have 4 legs, as well as wagons. 5 wheels on a wagon makes trouble. (Expression here). A bed with 5 legs? I had to make the second bed of my lady friend a 5-legged one. One long carrying bar broke in the middle, and in the middle of the night, and I had to sleep in a bed listing some 30 -40 degrees, unfortunately away from my friend.... A fifth leg was precision milled (!) and installed as well as a 1 meter M10 threaded bar to keep the long bars together. Wood splinters(spelling?) can be bad. Had one and thought I pulled it out... A few times per year like a little hill is growing there and it's irritating. Grab it and pull it off, cut if off, gives pain for some time. Then some months of peace and then again.... Rust coloured skin...... I get it! I use 10 - 25 time optical magnifiers to find it. Then a needle work needle having a slight hook on the tip is perfect to get the metall out of the body (usually finger)... A7 08:07-08:10 You use a saw. (Don't find the English name). A skilled woodworking friend named it "the rabbit c...k" (fast working body part...). Did You use preferred types of wooden bords? What will videos come in the future? Cooking? Gardening? Flying? Nobody knows, only it will be fun.
Love to see you back on the big stuff, but for me wrong color, I prefer grey. Acoustics , where there's a wide gulf between math modelling and technical artistry and experience.
I love to watch you work. You have the patients to bring your wonderful ideas into the realm of physical reality. I made speaker enclosures a couple of times and made variable ports so I could tune them. Fiberglass insulation may dampen the cardboard box sound. Just staple a 2" layer on the inside walls.
Well That's sad i also have run in to this problem . You could gut those box's for shelf or maybe they would work better outside for a party . Maybe put some stiffeners and some 10mm dense insulation and some cheep speakers in them . I hate when things don't work out . But you have done a fine job building them good work . JM
Interesting….I have a pair of Altec Santiago (woofer/horn), just luv them yet the horn can be a bit harsh (cheap reciever/amp)….my buddy built a pair nicknamed “the boys” that were easily the equivalent of the Altecs but without out the harshness (woofer,mid,tweeter)….the boys were cut up due to size, but I did rebuild and they now hang in my friends shop pounding out tunes, think I did a video long time ago
Hi Michel, what a shame, you really must be a keen sound enthusiast to be doing this. Look on the bright side, a tiny bit more wood work and you have a great new cupboard for your workshop lol. Cheers, Jon
Hello Michel, I used to often make loudspeakers and often disappointing to my standards. Then I got some birch wood and turned it into a stringed instrument with a perfect sound. Then made a sound box with birch wood and with a very nice and clear pure sound. stick to your plan and go for it!!!!
Sorry to see it didn’t worked out the what you wanted. Ive done some research in building a subwoofer myself in the past. But I came across on a good deal on a REL subwoofer. Way more easyer than building yourself. But perhaps less fun! Hopefully you come up with a new / better design. I do like the content! These months were the days get shorter I spent more time inhouse and listening to a good album with a nice drink. Very pleased with my setup right now, but always thinking what the next upgrade can be!
Hi Michel 😩 you put alot of effort into this and it's a shame their not giving you the sound that you want, oh well I guess it's back to the drawing board, or turn them into nice rabbit hutches for somebody, thanks for the video, stay safe my friend, best wishe's to you and your's, Stuart UK.
Well those are some pretty elaborate speaker boxes, maybe if you line the inside with some MDF (like a super, dense sawdust board lol) it might help bounce that sound a little better. The back of the speaker itself may have a Hz rating and if you have a scientist friend they may be able to calculate the optimum box size and features to amplify the wave lengths... 🤔. Cheers! 😊
I might be barking up the wrong tree but sound waves like light like to bounce off of objects at the same angle that they hit the object, your blackboard sketch shows the sound from the speaker hitting a 45deg plane which is good but the next corner is flat so the sound would be reflected back the way it came, this would for me cancel some of the sound leaving the box, if you fitted a 45 degree fillet in the two square corners then the sound would be directed out of the cone cleaner, just my thoughts and I'm likely to be wrong but worth a try maybe, one final thing, I love wood but hate working with it because it has a tendency to burn when you try and weld it :-)
Hello Rusty, I don't doubt that speaker design would be a difficult, frustrating experience. When I was taking engineering at university we had a course in fourth year called Vibrations and Acoustics. It was one of the toughest courses I took during my entire degree. I always found it funny that a dope smoking high school drop out could take a guitar and make absolutely fantastic music. Yet it took an incredible amount of academic discipline and effort to understand the mathematics behind that fantastic sound. Ken
So your saying you have to be high to make the math work?!? I have a job that you have to be drunk to make the pay math work out! The hourly pay is done by professionals but the bonuses not so much.
Michel, you missed the perfect gag shot... When you started talking speakers I was sure, "Lets do this" was going to be followed by a shot of you setting up the plywood on the shaper ... ;)
Speaker box looking good,,,My future plans are to re-skin all the shops wall cabinets in 0.025 Mag sheeting with engine turning finish,,,Should make the shop more of a Mans Cave (@@)!
Michel, the "Tech Ingredients" channel here on TH-cam within the last year or so did a fairly detailed explanation/study in speaker designs that _might_ be of some use to you. The guy has got to be some kind of Professor or similar and has a very wide range of interests, but made & compared/tested several DIY speaker designs that can be made in home workshops. Good luck with your search for a design that will give you what you are looking for!
Oh dear. Memories of my old failed attempts to build a speaker box at an wood work evening class at high school. I learned to my cost why high quality speakers were so expensive. They are bloody hard to build and sound just right. Eventually I was able to afford a reasonable pair of “Mission” speakers which have performed well for over 30+ years. Today though it seems people are satisfied with the sound from a tiny “smart” speaker. How times have changed. Chin up, looking forward to your next project. 👍😀
hello rustinox, nice video as always ;) ! I think that there is few solution for your speaker cabinets design problem, as you say in the video if you want "amplify" those low frequencies enough you need a longer length of the horn , you can also take a speaker with bigger diameter, they produce much better result in low frequency, I build (with friends..) few bass horn cabinet with 18" inch RCF speaker and they work "loudly" fine ;) ! Or why not one large bass reflex with two speaker in for more power in the very low frequencies ? Bass frequency are omnidirectional so ne need to get two units, just one big boxe in the room .. Lastly if you don't know the hornplan website go have a look it's amazing , many design with .pdf plans and sound measure ! I hope see one or more videos on speaker's theme, pretty interesting subject :) ! Bonne fête !
Hard luck. I once made a speaker box from two layers of plywood with about a one inch gap between them that I filled with sand. That certainly stopped any vibrations. I think it was a copy of a design by Tannoy.
Have built many speaker enclosures over the last 50 years. The ones where I strictly followed proven designs always worked well. The ones where I winged it were usually disappointing.
G'day Michel. Nice work mate. Nothing like mixing it up on your channel. However, I'm disappointed you didn't use your shaper to make these (joke 😂). Cheers, Aaron.
Of rock wool insulation . Or just staple one piece to each interior wall should lower the frequency.I think you get the pointtwo or three pieces one square foot
@@Rustinox they are certainly not the easiest way to build a speaker! I use front loaded (mid) bass horns they are pretty big, but still a compromise and only go down to 90hz, a small stand mount bass reflex design can go deeper. I use a powered sub to fill in the bass. I've decided to go active too after a lot of messing with crossovers. A 6 channel valve amp is also a bit of an undertaking!
Michel, or Rusty, any way I don't have any other way to contact you, but loading the Klopp metal shaper on Dec 4th 2021 was an eventful experience, but is now home! 3 hrs loading told me I am to old far many more HD Machinery moves, but hope you an other creators that love old vintage sharers will support us on the restoration of the 450?? Bear
I love horn speakers, there is something magical about them. However they are way beyond me to design. I'm curious, maybe concrete speaker experiment next?
Hi Michel, Sometimes the path to success is littered with failures. No big deal. Have you seen any of the videos that Tech Ingredients channel has put out concerning acoustics? He has a video about Voight boxes that was really entertaining. Maybe those are better at isolating the low frequency?
Michel ! This is a really silly question🙄 Those speakers are huge! Like rock concert size. Why did you wear hear ear protection when making them when they could liquefy your internal organs 🤣🤣🤣🤣🤣🤣
I am reminded of the speakers I never built as a youngster...
35 years ago I didn't have the money or tools to make a decent attempt.
Now I don't have the time either!
But my nostalgia was piqued sufficiently for me to acquire a replacement copy of 'An Introduction to Loudspeakers and Enclosure Design' (my original is long lost) with the plans to make a pair of Kapellmeisters.
It seems unlikely that they'll get made any time soon, but it's a handy little book to have on the shelf.
I came across that book on line in PDF format.
Very interesting reading.
Everything that comes before the speakers I understand - speaker design is a complete mystery to me !
Glass splinters are the worst of them all !
Thanks for the video !
Acoustics is a complicated matter.
An audiophile no less, nice work.
Thanks for sharing.
I'm not an audiophile, but I like when it sounds good :)
Find your splinters by letting them rust first. Too funny!!!
It works :)
Rusti..........at least you gave it a shot! Better to TRY and FAIL then to NEVER TRY at all!
Indeed. If you don't shoot, it's always miss.
Michel, look on the bright side, they will make good storage cabinets for the workshop 👍🏴
Maybe, but I don't need...
Hello Michel,
Thanks for this video... It was very interesting to learn about speakers... Thank you...
Take care.
Paul,,
Interesting, but a bit too much cold maths in my opinion.
05:58 🤣🤣🤣 i am a carpenter.... i got a lot wooden splinters, but i always find them, when the Kids are sleeping..... and its "Parents-Time"...😅😅🤣 and my wife screams out when i Touch here.....
The only splinters that freak me out, are the small Black splinters from drywall screws...
Nice woodworking!
Take care Rusty!
Yep, dry wall screws are nasty. They splinter and cut in your fingers.
You crack me up! Thanks for going for it. Maybe next time!
"Go for it " is the spirit.
That's a shame Rusty. But it was good to see some woodwork anyway :) (Perhaps your bass drivers are not large enough? I would think the horn needs a certain amount of air movement to work, and those size drivers may not be pushing enough air). Thanks, Craig
The drivers are very good. The neighbors can witness that :) Together they are the equivalent of a 12" driver, witch this boxes are designed for.
I just sat and waited for it "Made in Germany clamps" 🤣
You had some :)
hi M
Sometimes you don't know if something works until you try, unfortunately this is one of those projects, better luck next time. Also stainless steel splinters don't rust, i know iv'e had one for a couple weeks now and can't find it. 🤣👍
See you on next project,
Take Care
Kev
Indeed. Next time better.
Thanks for 13 enjoying minutes.
Woodwork is fun. Yes.
Beds normally have 4 legs, as well as wagons. 5 wheels on a wagon makes trouble. (Expression here). A bed with 5 legs? I had to make the second bed of my lady friend a 5-legged one. One long carrying bar broke in the middle, and in the middle of the night, and I had to sleep in a bed listing some 30 -40 degrees, unfortunately away from my friend.... A fifth leg was precision milled (!) and installed as well as a 1 meter M10 threaded bar to keep the long bars together.
Wood splinters(spelling?) can be bad. Had one and thought I pulled it out... A few times per year like a little hill is growing there and it's irritating. Grab it and pull it off, cut if off, gives pain for some time. Then some months of peace and then again....
Rust coloured skin...... I get it!
I use 10 - 25 time optical magnifiers to find it. Then a needle work needle having a slight hook on the tip is perfect to get the metall out of the body (usually finger)...
A7 08:07-08:10 You use a saw. (Don't find the English name). A skilled woodworking friend named it "the rabbit c...k" (fast working body part...).
Did You use preferred types of wooden bords?
What will videos come in the future? Cooking? Gardening? Flying? Nobody knows, only it will be fun.
This is plywood, very good to make speaker boxes, but also very expensive.
Love to see you back on the big stuff, but for me wrong color, I prefer grey. Acoustics , where there's a wide gulf between math modelling and technical artistry and experience.
Indeed, acoustics is complicated.
I love to watch you work. You have the patients to bring your wonderful ideas into the realm of physical reality. I made speaker enclosures a couple of times and made variable ports so I could tune them. Fiberglass insulation may dampen the cardboard box sound. Just staple a 2" layer on the inside walls.
The problem is not the enclosure. It's the horn.
Well That's sad i also have run in to this problem . You could gut those box's for shelf or maybe they would work better outside for a party . Maybe put some stiffeners and some 10mm dense insulation and some cheep speakers in them . I hate when things don't work out . But you have done a fine job building them good work . JM
The enclosure works just fine. The problem is the horn.
Thanks for sharing!
Well, there was not much to learn :)
I was gunna make some speakers back in the late 80's, Then I looked at the math 😂
It's easier and cheaper just to buy speakers.
very good job rustinox
Maybe, but I want them to work.
Interesting….I have a pair of Altec Santiago (woofer/horn), just luv them yet the horn can be a bit harsh (cheap reciever/amp)….my buddy built a pair nicknamed “the boys” that were easily the equivalent of the Altecs but without out the harshness (woofer,mid,tweeter)….the boys were cut up due to size, but I did rebuild and they now hang in my friends shop pounding out tunes, think I did a video long time ago
Yes, sometimes horns can be hard on specific frequencies.
Hi Michel, what a shame, you really must be a keen sound enthusiast to be doing this. Look on the bright side, a tiny bit more wood work and you have a great new cupboard for your workshop lol. Cheers, Jon
I will continue experimenting and make it work.
Hello Michel, I used to often make loudspeakers and often disappointing to my standards. Then I got some birch wood and turned it into a stringed instrument with a perfect sound. Then made a sound box with birch wood and with a very nice and clear pure sound. stick to your plan and go for it!!!!
Maybe I should give that a try.
Sorry to see it didn’t worked out the what you wanted. Ive done some research in building a subwoofer myself in the past.
But I came across on a good deal on a REL subwoofer. Way more easyer than building yourself. But perhaps less fun!
Hopefully you come up with a new / better design. I do like the content!
These months were the days get shorter I spent more time inhouse and listening to a good album with a nice drink.
Very pleased with my setup right now, but always thinking what the next upgrade can be!
Well. I will rethink the design and see what happens.
Interesting to hear the science behind this speaker design. Makes me think of tuning 2 stroke exhausts for the power band.
Sounds interesting.
Hi Michel 😩 you put alot of effort into this and it's a shame their not giving you the sound that you want, oh well I guess it's back to the drawing board, or turn them into nice rabbit hutches for somebody, thanks for the video, stay safe my friend, best wishe's to you and your's, Stuart UK.
Some times a project fails...
Well those are some pretty elaborate speaker boxes, maybe if you line the inside with some MDF (like a super, dense sawdust board lol) it might help bounce that sound a little better. The back of the speaker itself may have a Hz rating and if you have a scientist friend they may be able to calculate the optimum box size and features to amplify the wave lengths... 🤔.
Cheers! 😊
Unfortunately, I don't have scientist friends...
@@Rustinox me either 😥
G’day Rusti good luck with your speakers.
Cheers
Peter
Thanks Peter. A bit of luck is indeed what I need.
Why Watch this Video 🤔
For the same reason as building this Speaker Box..
Because, It's Fun To Do 👍
Can't argue with that 😉
Thanks. That's a very good reason.
Having had tinitus from childhood I could never understand people's obsession with speakers !!
Made some good storage units though !
I have the same problem. Since my military service.
If your ears arnt perfect it doesnt really matter Regards Stuart fromNE England.😎👍
My ears aren't perfect, but it matters to me :)
I might be barking up the wrong tree but sound waves like light like to bounce off of objects at the same angle that they hit the object, your blackboard sketch shows the sound from the speaker hitting a 45deg plane which is good but the next corner is flat so the sound would be reflected back the way it came, this would for me cancel some of the sound leaving the box, if you fitted a 45 degree fillet in the two square corners then the sound would be directed out of the cone cleaner, just my thoughts and I'm likely to be wrong but worth a try maybe, one final thing, I love wood but hate working with it because it has a tendency to burn when you try and weld it :-)
That was also my first idea.
This design is based on the "La Scala". There is no reflector in the sides of the La Scala.
Hello Rusty, I don't doubt that speaker design would be a difficult, frustrating experience. When I was taking engineering at university we had a course in fourth year called Vibrations and Acoustics. It was one of the toughest courses I took during my entire degree. I always found it funny that a dope smoking high school drop out could take a guitar and make absolutely fantastic music. Yet it took an incredible amount of academic discipline and effort to understand the mathematics behind that fantastic sound. Ken
So your saying you have to be high to make the math work?!? I have a job that you have to be drunk to make the pay math work out! The hourly pay is done by professionals but the bonuses not so much.
And I never even made it to university :)
Gday, there’s nothing better then a bit of trial and error, I’m sure you’ll work it out, Cheers
If you don't try, it will never work :)
Michel, you missed the perfect gag shot... When you started talking speakers I was sure, "Lets do this" was going to be followed by a shot of you setting up the plywood on the shaper ... ;)
Lol. I need a bigger shaper for that.
Speaker box looking good,,,My future plans are to re-skin all the shops wall cabinets in 0.025 Mag sheeting with engine turning finish,,,Should make the shop more of a Mans Cave (@@)!
Man cave. That's the spirit.
Michel, the "Tech Ingredients" channel here on TH-cam within the last year or so did a fairly detailed explanation/study in speaker designs that _might_ be of some use to you. The guy has got to be some kind of Professor or similar and has a very wide range of interests, but made & compared/tested several DIY speaker designs that can be made in home workshops. Good luck with your search for a design that will give you what you are looking for!
That was some great series of vids.
I made the acoustic panel speakers love them.
Yes, I know that channel. Thanks for the tip.
Oh dear. Memories of my old failed attempts to build a speaker box at an wood work evening class at high school. I learned to my cost why high quality speakers were so expensive. They are bloody hard to build and sound just right. Eventually I was able to afford a reasonable pair of “Mission” speakers which have performed well for over 30+ years.
Today though it seems people are satisfied with the sound from a tiny “smart” speaker. How times have changed.
Chin up, looking forward to your next project. 👍😀
Most people are happy with the sound of small speakers, witch is fine.
But I don't.
@@Rustinox I so agree, nothing compares with the rich sound of a large speaker cabinet.🎼👍😀
hello rustinox, nice video as always ;) !
I think that there is few solution for your speaker cabinets design problem, as you say in the video if you want "amplify" those low frequencies enough you need a longer length of the horn , you can also take a speaker with bigger diameter, they produce much better result in low frequency, I build (with friends..) few bass horn cabinet with 18" inch RCF speaker and they work "loudly" fine ;) ! Or why not one large bass reflex with two speaker in for more power in the very low frequencies ? Bass frequency are omnidirectional so ne need to get two units, just one big boxe in the room .. Lastly if you don't know the hornplan website go have a look it's amazing , many design with .pdf plans and sound measure !
I hope see one or more videos on speaker's theme, pretty interesting subject :) !
Bonne fête !
One of these days I will pick up this project again. I don't know yet what I will do, but I'll come up with something.
Good try. Now you have lots of plywood to use for something.
Indeed, but I don't need some :)
Hard luck. I once made a speaker box from two layers of plywood with about a one inch gap between them that I filled with sand. That certainly stopped any vibrations. I think it was a copy of a design by Tannoy.
But than you need a crane to move them :)
@@Rustinox It was alright until I moved house. Then I think I left it behind!
Have built many speaker enclosures over the last 50 years. The ones where I strictly followed proven designs always worked well. The ones where I winged it were usually disappointing.
Indeed, Peter. It must be correct.
G'day Michel. Nice work mate. Nothing like mixing it up on your channel. However, I'm disappointed you didn't use your shaper to make these (joke 😂). Cheers, Aaron.
Thanks Aaron.
Of rock wool insulation . Or just staple one piece to each interior wall should lower the frequency.I think you get the pointtwo or three pieces one square foot
I tried that. It didn't gave the results I was hoping for.
Ah, nice to see another horn speaker fan in the metalworking community 👍
Horns are cool, but they color the sound and are difficult to make.
@@Rustinox they are certainly not the easiest way to build a speaker! I use front loaded (mid) bass horns they are pretty big, but still a compromise and only go down to 90hz, a small stand mount bass reflex design can go deeper. I use a powered sub to fill in the bass.
I've decided to go active too after a lot of messing with crossovers. A 6 channel valve amp is also a bit of an undertaking!
I am shocked I never thought you would have a losing project. Obviously it is time to stop when you know it is not working out.
Well, I only human...
Michel, or Rusty, any way I don't have any other way to contact you, but loading the Klopp metal shaper on Dec 4th 2021 was an eventful experience, but is now home! 3 hrs loading told me I am to old far many more HD Machinery moves, but hope you an other creators that love old vintage sharers will support us on the restoration of the 450?? Bear
It would be my pleasure, Bear.
I love horn speakers, there is something magical about them. However they are way beyond me to design. I'm curious, maybe concrete speaker experiment next?
I will need a fork lift to move them :)
A plan? Rustinox is working with a PLAN?
I thought it would be an original idea :)
Would really like stickers for my toolbox, is it possible to get them still? Love the channel
Of course! Mail me at; rustinox@outlook.com
Hi Michel, Sometimes the path to success is littered with failures. No big deal. Have you seen any of the videos that Tech Ingredients channel has put out concerning acoustics? He has a video about Voight boxes that was really entertaining. Maybe those are better at isolating the low frequency?
Well, no. I didn't know that channel.
Michel !
This is a really silly question🙄
Those speakers are huge! Like rock concert size.
Why did you wear hear ear protection when making them when they could liquefy your internal organs 🤣🤣🤣🤣🤣🤣
Hammering on these panels is really loud.
New channel splinternox?
Not sure...