sorry to be so offtopic but does anybody know a way to log back into an Instagram account? I stupidly forgot the password. I love any tips you can offer me
@Raylan Amir i really appreciate your reply. I found the site through google and I'm waiting for the hacking stuff now. Seems to take a while so I will reply here later when my account password hopefully is recovered.
Great information for beginners, and someone like myself. 20+ years ago I was building custom enclosures, been a while. I'm getting back into car audio, and the game has changed.
>the game has changed That's not true at all. The physics are the physics, the math is the math. That has not, and will never change. The only thing that's changed is people now *ignore* the math, and then wonder why their stereos sound like crap. The consumers have simply become ignorant. Worse than that, willfully ignorant. If 20 years ago, you'd ask your average stereo consumer what Thiele-Small Parameters are, and thanks to the magazines like Stereo Review, Car Stereo Review, Car Audio & Electronics, and even Auto Sound & Security, everyone would at least have an idea. The magazines really did try to educate the consumers. All that is gone now, and if you ask someone today about TSP's, they look at you like you're from Mars. This despite having all of the knowledge in the world right at their fingertips.
@@michaelbloom5342 You hit the nail on the head! I got into this hobby back in 1985. Your absolutely correct about the reading material on hand with good solid guidelines explaining articles such as Thiele-Small Parameters, but unfortunately math was my downfall. My first installation was in my 1978 Chevy van with four Pyle 10" in a custom box between the wheel wells, sized as per Pyle's recommend volume and port size. I didn't have the money to buy a new amp so I scored two well used Rockford Fosgate four channel amps (50 watts RMS per channel) specs that I got from Car Stereo Review buyers guide. One of them didn't work. Having a electronics background I was able to repair that amp. Problem? The turn on transistor was missing, the turn on wire wasn't like the one used on today's amps, it had to sense a current draw. RF said to connect the positive wire from the head unit to create a current draw. Then I had to figure out the 5 pin din connector they used to power the dashboard mounted equalizer to RCA connectors. I purchased a Kenwood CD player ($600) with no radio. They just came out on the market, unfortunately it skipped every time I hit a bump in the road. I took it back to Crazy Eddys three times and they couldn't fix it. So I demanded a new unit and by then it included a radio module. Sorry if I went off on a tangent, I could go on and on....
@@BenaresDarkness The one and *only* thing that has gotten better is the digitalization of processors. And even then, a lot of that is wasted, because trying to find a head unit with digital outputs is difficult to say the least. In the 90's, pretty much every single high end head unit had TOSLINK out. Try to find that now. The vast majority of amps today are far, far worse than what we had in the 90's. The slew rates have gotten so bad, the manufactures won't even list that value in their specs anymore. And don't get me started on reliability. Most of today's amps are made in Communist China by those poor souls making 2 cents per day, using the absolute cheapest possible parts. They're almost universally junk. The amps we got in the 80's and 90's were all handcrafted in the USA (mostly in Arizona), using the highest grade parts available, populated on Mil-Spec circuit boards. Each and every *individual* amp was bench tested to assure it *exceeded* factory specs. Then, Rockford went one better, they physically beat on each and every single amp they made with a rubber mallet, just to make sure they would hold up. This is the reason that an amp bought 30 years ago still works to this very day.
I just bought a Concept Enclosures 15" sub box on eBay for my 15" Skar Audio SVR-D4. 4.25 cu ft, 6" front firing port, birch plywood (two layers on the front!). Tuned to 32 Hz. All for under $350 (they let you customize it before ordering). Been doing car/home stereo since the early 1980s. This sub box is incredible...the output is insane. I agree...most of the cheap crap on Amazon isn't worth the cardboard they are packed in. You want deep bass...having more space & tuned porting by pros that know what they are doing is KEY. Concept Enclosures on eBay.
I was just looking for wiring info for my L7s and walked straight into a collegiate mathematics course! Great content sir! I'm gonna binge your video library now.
I have a dual 10" sealed Attrend I like it the only downside the terminal cups are a little too small (cannot connect both subs without extra wire unless you drill or upgrade) but other than that no complaints
I have a 15" rockford fosgate T1 and I've been eyeballing the Skar 15" ported box for months now. After watching your video I decided to have another look to see if it had came back in stock yet. Did some searching and ended up finding it on ebay. Ordered it and it's on its way. I'm excited. Thanks for the motivation.
Did you happen to check the cutout size first? The T1 is a bit oversized. If you need to make the hole bigger start by trimming back the carpet before you grab your jig saw.
I agree that 32hz is "spot on" :) Build all my own enclosures. Right now, I'm running an 18" with two 15" passive radiators in 5 cubes... tuned to 32hz ;) Best enclosure I've ever created :)
Allow me to jump in here and recommend the Sound Ordinance boxes sold by Crutchfeld. I have a single 12 box with around 1.9 cu ft tuned to 34hz. Very solid construction sounds amazing love it! Just found your channel subbed.
I have the single 12" of the Skar box and was really impressed with it overall when it arrived. Its solid and has a nice kerfed port and the bit of overhang above and below the speaker mount help provide a bit of clearance/protection to the speaker when I need to slide the seat all the way back. I have it in a 90s model extended cab Ranger. It fits with room to spare if you have a Ranger/Mazda Bseries extended cab and were wondering. I couldn't find any info online when I ordered but assumed it would fit one way or another. I could probably fit 2 sitting regular or if I stood them on their side I am almost certain 3 would fit, maybe 4. It stands on its side and stops an inch or two below the rear window which presents some interesting possibilities. The wires are a bit short but manageable and easily replaced if need be. I have had 3 different subs in it with not issues connecting the wires.
I have a prefab JL Audio prefab band pass box that was built in 1995 and I still have the same two 10’s that came with it. Still runs like it’s brand new
I worked for 9 year at a custom shop and we didn't use MDF, we used Trupan Ultralight and it was a pleasure to work with. The sawdust was like talc and the density was higher but the material was measurably lighter. I always painted bare wood and the inside of enclosures to prevent material "breathing". Have any of you used or tried this material?
Thanks for the videos man. I always enjoy them. Q-Logic used to make some really solid prefabs way back when, but I think they quit. Or got bought out.
I just bought the single 15 version of the Skar box and ill have to say for a prefab box its one of the nicer ones I've seen I'm going to put an Audiopipe TXX-BDC4 15 dvc2 in it very soon
I remember when I got a 80$ box and was booming for a few weeks. Then my subs started to make a farting noise. I thought I blew my subs. But it turns out I blew my box lmao
I have a a bomb 10 inch kerf ported box, I'm not sure if qbomb makes it anymore but it's extremely similar to the skar ar1x series box, I have skars evl 10 in it powered by a kicker dxa 250.1 monoblock I've hit 132db at the base of the windshield, and it surprises people everytime they hear it.
I got a prefab box from Parts Express super cheap that was for a single 10-inch ported. I cut the slot Port out of the bottom, cut the carpet off the baffle and glued another one on top, then I cut a hole for an 8-inch skar audio subwoofer and put in a 3in round port and it absolutely hammers.. astounding output down to about 32 Hertz. Way louder and lower than the 10-inch sub I had in it when I got it. I believe the slot Port was tuned to 50 hz !
@@DIYAudioGuyyou mean too high.. That's why I went up a box size and put a new baffle on, with a traditional port. Like if you need a box for 12 get a prefab for a 15 and put a new baffle on.
I got one of those cheap 5/8 prefab dual 10” center-vented boxes for free (exactly like shown at 0:48) I measured and it was 2.5’ cubed internal vented space (raw) with a huge port. The tune was calculated right about 48hz. Safe for most subs but FAR from what I wanted. To get a 36hz tune it needed less port area for the set port length. I reduced the port floor and ceiling distance with scrap, closed off the voided port area front and back, and wrapped it in a layer of 1/2” for rigidity. A free box, a few hours of calculations and cutting/gluing scrap = DEEP bass that sounds great. It can be done if you don’t have time to start from scratch.
Actually tuning high is not safe at all for most Subs... because what happens below tuning is the driver acts like it is in free air...The port is no longer resonating, so the port is essentially just a hole in the Box below tuning. This unloading of the driver can cause ripped spiders ,surrounds, or damage to voice coil from smacking the backplate
I don't know about the 5/8ths flexing.. especially if it's door grade MDF or Weyerhaeuser "HDF". I work for a cabinet door company and operate a CNC for MDF doors, end up cutting a lot of boxes in free time. Even had success making structurally sound boxes out of 1/2" LDF with the correct bracing. Anyways, great video. Enjoyed it :)
I'm indifferent, some of them are trash some of them are fantastic, some of them are overpriced. If you don't have the tools and the time to build your own box go ahead and buy one.
They used polyfill which I'll never used since in high power applications it can separate and become lodged in the motor assembly and the spider leading to over heating and destruction.
Is a skar rp 1500 amp pushing a skar evl-12 considered high power? Asking because am currently using rockford R500 amp pushing a rockford P2 400w. Switching to the skar. Whats the threshold at which a system becomes high power?
I tried using a prefab box with two Rockford p1s4 10” wired to 8 ohm in my house and it sounds like shit. Im going to try and either get a better box or go a different route
I have 2 of the GSR 12's, they sound beautiful; 1 in 2.5 cuft, tuned port to 32 hz, the other in a 2cuft sealed box in my home theater subcabinet converted from an old console stereo. Powered with 200 watt plate amp, I can feel movies sitting on my back porch. Skar or JL prefab are about the only ones worth buying.
i have the Skar Dual 12" 2,400 Watt SDR Series Loaded Vented Subwoofer Enclosure the box is well built i just installed in my Envoy the Skar system hits amazing very happy and if you are just looking for a box Skar is the best way to go unless you have $699 and up for a down for sound box
The wording is confusing. A normal ported box will have a rear port. A single-reflex bandpass (most call this 4th order) will have a front port and a dual-reflex, parallel-tuned bandpass ( ie. a sixth order) will have both.
Qbomb by Qpower is a really good option as well I use it with 2 15" Kicker Comp C's, and it hits really hard. I'm using a Hifonics 3200 watt Zeus ZRX3216.1 amp. I think it was about 130 bucks for the box after taxes. I do miss the old school bandpass boxes though.
Everyone keeps saying the baffle is weak, but it seems like bolting a lipped steel ring (the speaker) to the hole would stiffen it quite a bit. It would be interesting to see someone run some boxes with air pressure in solid works to get a better (real) idea of where bracing needs to be. Everyone seems to add 45s to corners and other stuff but placement always seems random and many cases where I know a simple horizontal gusset would be more effective
I honestly think that first box was tuned even higher, I have a slightly bigger prefab with 3/4 MDF construction, and its port goes along the back wall of each side, and its tuned somewhere between 40, and 45 hz, I know this port will take more airspace out, but based on my old box it seems like itd be tuned closer to 50hz..
@@DIYAudioGuy yeah I could tell the one in the video had a shorter port. Mine splits the port into each side, and I believe the port width is halved along that path, but I could be mistaken I havent really messed with that box for a while, moved on and built my own lol. I think that old prefab I had was 36w-14.5h-19d all in inches, I have to recheck to see what that first boxes dimensions were
Yeah relooking at the actual dimensions of the first box it's a decent chunk smaller, so the interior space per side is probably smaller, at best the same as my old box, so that sucker is tuned high.
Thank you for posting this. I actually bought one of the SKAR boxes after watching this video. Given my lack of knowledge, I bought a dual voice coil 2 ohm subwoofer. I cannot figure how to fit two 8 gauge wires into the push connectors. Do you have any ideas? I don't mind spending a little extra up front to ensure I have a good connection. Thank you, for all of your wonderful information.
8 gauge is huge for speaker wire. Consider smaller wire. You can also grit some crimp connectors and crimp two wires onto one wire and then just connect that single wire to the terminal.
@@DIYAudioGuy I was referencing a chart with 1200 watts rms / .75 for amp efficiency / 13.8 volts. the chart shows 115 amps requires 8 gauge wire. Am I doing something wrong? I attempted to link the chart but it keeps dissappearing, so I assume that is not allowed. Thank again for your quick responses. You have been very helpful with my project.
@@seanyounk1 That sounds like the calculation for the power wire leaving from the battery to the amp, and for that much power you're going to need four gauge.th-cam.com/video/To4uT85DUrY/w-d-xo.html
I am putting a system im my 2016 lacrosse. Should i get ported or sealed? I already have the bose factory system so i just want more clean bass. Im planning on putting a 10' p3 i have a old school 600a iv amp.
Why does a prefab box have to be tuned odd? Like 32hz for example. Why not round it to 2 cubic foot per chamber tuned to 30hz with 1in baffles for a standard prefab box? I would be fine paying $150-$200 for a decent prefab box like that.
interesting observation about the flaring of the port ... if you weren't satisfied with such a defect and contacted the seller would you be making a "Port Noise Complaint"? (younger folks might not get that one) ... thanks for well done, informative videos
Can you do a review of pyramid bps12 bandpass prefab. Use different subs though for test please. Pyramid ones will blow most likely. I have one of these; it's loud, but lows aren't as solid as I would like.
Everyone keeps saying the baffle is weak, but it seems like bolting a lipped steel ring (the speaker) to the hole would stiffen it quite a bit. It would be interesting to see someone run some boxes with air pressure in solid works to get a better idea of where bracing needs to be. Everyone seems to add 45s to corners and other stuff but placement always seems random and many cases where I know a simple horizontal gusset would be more effective
I have a scosche 10inch enclosure paired with their discontinued 10inch HD subwoofer and I also have a 12 inch aswell paired with a sony xplod GTR121L so far so good also have 2 discontinued scosche 12inch subwoofers in a wedge style enclosure ported
Bro, if you have a Dyno, you should just do a string of videos testing a bunch of different subwoofer ratings. There's a few, here & there, but no one has more than 2 or 3 brands. Like Derek Willingston has tested probably 100 or more amps, that's kinda his thing. Couple subs, but still, not very many. Someone needs to do subs like he does the amps. Big boy gang moves.
As I build boxes. I will tell u. I will buy a bbox myself. It’s a good quality choice. It’s close. But, if u want it tuned to its capabilities build it. Skar is built for their speakers. Yes they’re good. But not every speaker can do 32 htz.
I was not impressed at all with my Atrend Ram 1500 "B-Box" from Amazon. I complained and they gave me a partial refund. The pictures showed a nice, metal, push to connect speaker terminal. On the actual box was a cheap plastic thing that couldn't even fit 12 gauge wires, so I had to change that. #2 The "caulk job" was very sub standard, so I had to re-seal it. #3 It specifically said and showed that it came filled with poly fill. It arrived empty, so I had to run to the craft store. I normally build my own enclosures, but the one for the Ram Crew needs some really complex shapes.
When I was researching for this video I noticed that the price had DOUBLED compared to what I paid for mine,and like you said the pics showed poly-fill and better terminals. For double the price, hell no. Especially if you don't get the upgrades. But for what I paid it was just fine to get me started. My goal was always to fiberglass a box, that is happening this summer.
Got a skar evl-12 i just bought. Looking for a sealed enclosure but most everything out there is ported these days😫😫. Some good quality brands but nothing for a single sealed box @ 1.75 sq ft.
Great advice ! I have 6 1/2 inch two way in-ceiling home speakers. I have plenty of attic space for instalation. What size of enclose box would you recommend to install ? Thank you !
Lol, I had an expert make a custom box for my sub, and thought he knew better than the manufacture, and surprise, it's distorted because it is the wrong volume.
My goal when making this video was to teach you how to evaluate the enclosure for yourself. Clearly I have failed in my mission and I will need to make another video.
@DIY Audio Guy definitely was a gem of a video. Jus was hoping for some insights on my enclosure as im in the process of refurbishing it. Took the carpet off sanded off the adhesive and the paint on the face. Have a few ideas on the refurbishment of it but dunno if it's worth it. But this was a great video.
th-cam.com/play/PL3Aot9dMXzXY7zxDzVdCPLIYnR1FRqghX.html
sorry to be so offtopic but does anybody know a way to log back into an Instagram account?
I stupidly forgot the password. I love any tips you can offer me
@Theo Kelvin instablaster =)
@Raylan Amir i really appreciate your reply. I found the site through google and I'm waiting for the hacking stuff now.
Seems to take a while so I will reply here later when my account password hopefully is recovered.
@Raylan Amir It did the trick and I now got access to my account again. Im so happy!
Thank you so much you saved my account!
@Theo Kelvin You are welcome =)
Subbed due to you mantra, all gear is budget gear, budgets are just different.
So eloquently put.
👍👊
Excellent video from start to finish! Great job!
Thanks man!
I don’t know why, but I didn’t expect to see you here.
Lol I'm running into you every where
Dick Riculous, my man!
You know you doing good when the big D says so.
Great information for beginners, and someone like myself. 20+ years ago I was building custom enclosures, been a while. I'm getting back into car audio, and the game has changed.
Share with the next generation so we can save them from buying a crappy box.
>the game has changed
That's not true at all. The physics are the physics, the math is the math. That has not, and will never change. The only thing that's changed is people now *ignore* the math, and then wonder why their stereos sound like crap. The consumers have simply become ignorant. Worse than that, willfully ignorant. If 20 years ago, you'd ask your average stereo consumer what Thiele-Small Parameters are, and thanks to the magazines like Stereo Review, Car Stereo Review, Car Audio & Electronics, and even Auto Sound & Security, everyone would at least have an idea. The magazines really did try to educate the consumers. All that is gone now, and if you ask someone today about TSP's, they look at you like you're from Mars. This despite having all of the knowledge in the world right at their fingertips.
@@michaelbloom5342 You hit the nail on the head! I got into this hobby back in 1985. Your absolutely correct about the reading material on hand with good solid guidelines explaining articles such as Thiele-Small Parameters, but unfortunately math was my downfall. My first installation was in my 1978 Chevy van with four Pyle 10" in a custom box between the wheel wells, sized as per Pyle's recommend volume and port size. I didn't have the money to buy a new amp so I scored two well used Rockford Fosgate four channel amps (50 watts RMS per channel) specs that I got from Car Stereo Review buyers guide. One of them didn't work. Having a electronics background I was able to repair that amp. Problem? The turn on transistor was missing, the turn on wire wasn't like the one used on today's amps, it had to sense a current draw. RF said to connect the positive wire from the head unit to create a current draw. Then I had to figure out the 5 pin din connector they used to power the dashboard mounted equalizer to RCA connectors. I purchased a Kenwood CD player ($600) with no radio. They just came out on the market, unfortunately it skipped every time I hit a bump in the road. I took it back to Crazy Eddys three times and they couldn't fix it. So I demanded a new unit and by then it included a radio module. Sorry if I went off on a tangent, I could go on and on....
@@michaelbloom5342 Well you are wrong about that it has changed since the 90s or the 80s and it always continue to change due to it improving.
@@BenaresDarkness The one and *only* thing that has gotten better is the digitalization of processors. And even then, a lot of that is wasted, because trying to find a head unit with digital outputs is difficult to say the least. In the 90's, pretty much every single high end head unit had TOSLINK out. Try to find that now.
The vast majority of amps today are far, far worse than what we had in the 90's. The slew rates have gotten so bad, the manufactures won't even list that value in their specs anymore. And don't get me started on reliability. Most of today's amps are made in Communist China by those poor souls making 2 cents per day, using the absolute cheapest possible parts. They're almost universally junk.
The amps we got in the 80's and 90's were all handcrafted in the USA (mostly in Arizona), using the highest grade parts available, populated on Mil-Spec circuit boards. Each and every *individual* amp was bench tested to assure it *exceeded* factory specs. Then, Rockford went one better, they physically beat on each and every single amp they made with a rubber mallet, just to make sure they would hold up. This is the reason that an amp bought 30 years ago still works to this very day.
Man I miss Obcon! Great video and information it’ll definitely help out some of the guys who never even considered the differences in enclosures.
That is what I'm shooting for.
I just bought a Concept Enclosures 15" sub box on eBay for my 15" Skar Audio SVR-D4. 4.25 cu ft, 6" front firing port, birch plywood (two layers on the front!). Tuned to 32 Hz. All for under $350 (they let you customize it before ordering). Been doing car/home stereo since the early 1980s. This sub box is incredible...the output is insane. I agree...most of the cheap crap on Amazon isn't worth the cardboard they are packed in. You want deep bass...having more space & tuned porting by pros that know what they are doing is KEY. Concept Enclosures on eBay.
I saw it on your channel, very nice.
I was just looking for wiring info for my L7s and walked straight into a collegiate mathematics course! Great content sir! I'm gonna binge your video library now.
There is a surprising amount of math involved!
Lol you can still see the blurred out letters the first one says QPower QBASS12👌😂
🙈🙉🙊
I have q-bomb tuned to 30hz for two 10" soundqubed. Sounds amazing. I also have a ground shaker box for two 10" Fosgate hx2s and they also slam!
Hope your channel blows up great information
Thanks!
I expected Atrend to come up. I enjoyed selling and owning their products. Better quality than most prefabs.
I have been very happy with mine!
I had an older version of this with Alpine Type Rs. It wasn't bad! www.sonicelectronix.com/item-33864-Atrend-BP-12DV.html
The thumbnail is an Atrend 15DVR, so I expected to see that featured in the video myself..
I have a dual 10" sealed Attrend I like it the only downside the terminal cups are a little too small (cannot connect both subs without extra wire unless you drill or upgrade) but other than that no complaints
@@Bradimus1 did any problems arise with that box?
I have a 15" rockford fosgate T1 and I've been eyeballing the Skar 15" ported box for months now. After watching your video I decided to have another look to see if it had came back in stock yet. Did some searching and ended up finding it on ebay. Ordered it and it's on its way. I'm excited. Thanks for the motivation.
Did you happen to check the cutout size first? The T1 is a bit oversized. If you need to make the hole bigger start by trimming back the carpet before you grab your jig saw.
I love my Skar single 15
I agree that 32hz is "spot on" :) Build all my own enclosures. Right now, I'm running an 18" with two 15" passive radiators in 5 cubes... tuned to 32hz ;) Best enclosure I've ever created :)
That sounds frickin' awesome! E-mail me some pics at diyaudioguy@gmail.com, I got to see that.
@@DIYAudioGuy Will do 🙂
The world needs to see this
Another great video sir, keep up the car audio classyness
Thanks, will do!
Great information this should help a lot of people
For sure, hopefully we can prevent new people from just buying the cheapest box.
I just found your channel and man you make great content! To the point and easy to understand. Keep up the good work.
Thanks.
Allow me to jump in here and recommend the Sound Ordinance boxes sold by Crutchfeld. I have a single 12 box with around 1.9 cu ft tuned to 34hz. Very solid construction sounds amazing love it! Just found your channel subbed.
Yes, solid boxes.
Them Plastic 50 gallon Barrels make Awsome 15- 18 inch Bass boom boxes!
I have the single 12" of the Skar box and was really impressed with it overall when it arrived. Its solid and has a nice kerfed port and the bit of overhang above and below the speaker mount help provide a bit of clearance/protection to the speaker when I need to slide the seat all the way back. I have it in a 90s model extended cab Ranger. It fits with room to spare if you have a Ranger/Mazda Bseries extended cab and were wondering. I couldn't find any info online when I ordered but assumed it would fit one way or another. I could probably fit 2 sitting regular or if I stood them on their side I am almost certain 3 would fit, maybe 4. It stands on its side and stops an inch or two below the rear window which presents some interesting possibilities. The wires are a bit short but manageable and easily replaced if need be. I have had 3 different subs in it with not issues connecting the wires.
👍
Which subs have you tried with ?
I have a prefab JL Audio prefab band pass box that was built in 1995 and I still have the same two 10’s that came with it. Still runs like it’s brand new
JL knows what they're doing.
Just got a Skar 15 single loaded sub on Amazon for $220, got it hooked up to a Rockville db45 bridged, 400 watts RMS, sounds great!!! Amp was $150
Awesome.
We use to put subwoofers insde a Road Tinhorn it made the most encredible Bass and shook the earth!
I worked for 9 year at a custom shop and we didn't use MDF, we used Trupan Ultralight and it was a pleasure to work with. The sawdust was like talc and the density was higher but the material was measurably lighter. I always painted bare wood and the inside of enclosures to prevent material "breathing". Have any of you used or tried this material?
I've never heard of it, but I'd like to try it!
Great input for those looking to get a box off Amazon!! 👍👍
If only there were a place where I could buy that cool t-shirt you are wearing. 🙂
I subbed! 👍now we want to know about Hoffmanns iron law
👍
Thanks for the videos man.
I always enjoy them.
Q-Logic used to make some really solid prefabs way back when, but I think they quit. Or got bought out.
I just hate to see people spend their hard-earned money on a box for 2 12's made out of 5/8 MDF.
obviously qpower on the first one lol. I personally LOVE skar, it's like official knockoff sundown lol
I try not to worship brand names -- got to look at how it is built. SKAR makes great stuff at the their price point.
Sundown expensive but worth it
Skar makes good stuff I believe there cut outs are only 11 inches and higher power subs probably won't fit unless you widen out the hole.
That's better than an oversized hole!
So glad I found this channel! Good stuff bro! 😄🔊
Thanks for dropping by and leaving a comment!
Low earthquake ground shaking Bass can be heard a mile away when i crank it up a little!
I just bought the single 15 version of the Skar box and ill have to say for a prefab box its one of the nicer ones I've seen I'm going to put an Audiopipe TXX-BDC4 15 dvc2 in it very soon
I am glad to hear that, I have seen them in a local shop and they seem pretty solid. A notch up from your standard prefab.
@@DIYAudioGuy what’s your opinion on ground shaker prefabs?
@@arthurhughlett2292 Don't know anything about them.
SKar has been on point for pre-fab. All the ones I looked at were at a friendly 34hz flare port tune. (Skar 12" VVX owner)
I was looking at the same box for my 15 any update on this?
The first box sounded pretty good with kicker comp vx, but I had to put screws all around where it is needed to make sure it doesn't come apart.
I learned to make my own subwoofer boxes. This way they have the correct air space and they are built to fit my trunk.
That's the way to go!
Gatley audio makes some serious stuff...1" Birch Ply
That guy knows what he's doing!
I remember when I got a 80$ box and was booming for a few weeks.
Then my subs started to make a farting noise. I thought I blew my subs. But it turns out I blew my box lmao
I've always wondered how long it would take for one of these cheap boxes to fall apart.
@@DIYAudioGuy lol not long apparently lmao.
I never knew you could blow a box lol you learn something new every day
I have a a bomb 10 inch kerf ported box, I'm not sure if qbomb makes it anymore but it's extremely similar to the skar ar1x series box, I have skars evl 10 in it powered by a kicker dxa 250.1 monoblock I've hit 132db at the base of the windshield, and it surprises people everytime they hear it.
Awesome!
Take the first box and throw some pyle audio in there 🤣 it's an SPL box, just invert the subs.
Thanks, Captain Spaulding on his day off!
What's the matter kid, don't you like clowns?
I’m not here to bash anyone so I’m blurring the name. Next clip shows the name. Lol. Great video man. Thanx for the info.
My bad
@@DIYAudioGuy lol. All good just letting ya kno you missed it
I got a prefab box from Parts Express super cheap that was for a single 10-inch ported. I cut the slot Port out of the bottom, cut the carpet off the baffle and glued another one on top, then I cut a hole for an 8-inch skar audio subwoofer and put in a 3in round port and it absolutely hammers.. astounding output down to about 32 Hertz.
Way louder and lower than the 10-inch sub I had in it when I got it. I believe the slot Port was tuned to 50 hz !
My biggest beef with a prefab is that they tend to be undersized and tuned too low.
@@DIYAudioGuyyou mean too high..
That's why I went up a box size and put a new baffle on, with a traditional port.
Like if you need a box for 12 get a prefab for a 15 and put a new baffle on.
@@theejoeylee Yes, you're correct.
Best box I’ve ever had is an American sound connection box, it lets that kicker c10 I put in it hit pretty damn hard
Awesome!
I got one of those cheap 5/8 prefab dual 10” center-vented boxes for free (exactly like shown at 0:48) I measured and it was 2.5’ cubed internal vented space (raw) with a huge port. The tune was calculated right about 48hz. Safe for most subs but FAR from what I wanted.
To get a 36hz tune it needed less port area for the set port length. I reduced the port floor and ceiling distance with scrap, closed off the voided port area front and back, and wrapped it in a layer of 1/2” for rigidity.
A free box, a few hours of calculations and cutting/gluing scrap = DEEP bass that sounds great. It can be done if you don’t have time to start from scratch.
That is awesome!
Actually tuning high is not safe at all for most Subs... because what happens below tuning is the driver acts like it is in free air...The port is no longer resonating, so the port is essentially just a hole in the Box below tuning. This unloading of the driver can cause ripped spiders ,surrounds, or damage to voice coil from smacking the backplate
Wish I knew about this channel a long time ago
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I don't know about the 5/8ths flexing.. especially if it's door grade MDF or Weyerhaeuser "HDF". I work for a cabinet door company and operate a CNC for MDF doors, end up cutting a lot of boxes in free time. Even had success making structurally sound boxes out of 1/2" LDF with the correct bracing. Anyways, great video. Enjoyed it :)
Yea the HDF is heavy, much heavier than this.
Do you like loaded enclosures
I'm indifferent, some of them are trash some of them are fantastic, some of them are overpriced. If you don't have the tools and the time to build your own box go ahead and buy one.
They used polyfill which I'll never used since in high power applications it can separate and become lodged in the motor assembly and the spider leading to over heating and destruction.
But would you really use a prefab box for a high power application?
Is a skar rp 1500 amp pushing a skar evl-12 considered high power? Asking because am currently using rockford R500 amp pushing a rockford P2 400w. Switching to the skar. Whats the threshold at which a system becomes high power?
I tried using a prefab box with two Rockford p1s4 10” wired to 8 ohm in my house and it sounds like shit. Im going to try and either get a better box or go a different route
Skar Audio AR2X12V Dual 12" im assuming this shares your same sentiment as the Q BOx? as well?
Pre fab Ground shaker boxes hands down 💪🏾heavy duty !!!!!!!!! Expensive but high quality💯👌
You get what you pay for.
I have 2 of the GSR 12's, they sound beautiful; 1 in 2.5 cuft, tuned port to 32 hz, the other in a 2cuft sealed box in my home theater subcabinet converted from an old console stereo. Powered with 200 watt plate amp, I can feel movies sitting on my back porch. Skar or JL prefab are about the only ones worth buying.
GSR is the ultimate budget subwoofer. Nothing at that price point can touch it.
Very informative video.
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I wanna know more about Hoffmans iron law!
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i have the Skar Dual 12" 2,400 Watt SDR Series Loaded Vented Subwoofer Enclosure the box is well built i just installed in my Envoy the Skar system hits amazing very happy and if you are just looking for a box Skar is the best way to go unless you have $699 and up for a down for sound box
Air flow is Bass.Pick the correct air box vented correctly for Bass airflow!
The wording is confusing. A normal ported box will have a rear port. A single-reflex bandpass (most call this 4th order) will have a front port and a dual-reflex, parallel-tuned bandpass ( ie. a sixth order) will have both.
Qbomb by Qpower is a really good option as well I use it with 2 15" Kicker Comp C's, and it hits really hard. I'm using a Hifonics 3200 watt Zeus ZRX3216.1 amp. I think it was about 130 bucks for the box after taxes. I do miss the old school bandpass boxes though.
A lot of people seem to like those.
@@DIYAudioGuy Yeah you'd be lucky to find one for 15's anymore. I think they stopped selling them in the mid 2000's.
Everyone keeps saying the baffle is weak, but it seems like bolting a lipped steel ring (the speaker) to the hole would stiffen it quite a bit.
It would be interesting to see someone run some boxes with air pressure in solid works to get a better (real) idea of where bracing needs to be. Everyone seems to add 45s to corners and other stuff but placement always seems random and many cases where I know a simple horizontal gusset would be more effective
Good points! I personally am beginning to doubt the value of corner 45s as a brace. The corner should be the most rigid part of the enclosure.
I honestly think that first box was tuned even higher, I have a slightly bigger prefab with 3/4 MDF construction, and its port goes along the back wall of each side, and its tuned somewhere between 40, and 45 hz, I know this port will take more airspace out, but based on my old box it seems like itd be tuned closer to 50hz..
That's not good.
@@DIYAudioGuy yeah I could tell the one in the video had a shorter port. Mine splits the port into each side, and I believe the port width is halved along that path, but I could be mistaken I havent really messed with that box for a while, moved on and built my own lol. I think that old prefab I had was 36w-14.5h-19d all in inches, I have to recheck to see what that first boxes dimensions were
Yeah relooking at the actual dimensions of the first box it's a decent chunk smaller, so the interior space per side is probably smaller, at best the same as my old box, so that sucker is tuned high.
Thank you for posting this. I actually bought one of the SKAR boxes after watching this video. Given my lack of knowledge, I bought a dual voice coil 2 ohm subwoofer. I cannot figure how to fit two 8 gauge wires into the push connectors. Do you have any ideas? I don't mind spending a little extra up front to ensure I have a good connection. Thank you, for all of your wonderful information.
8 gauge is huge for speaker wire. Consider smaller wire. You can also grit some crimp connectors and crimp two wires onto one wire and then just connect that single wire to the terminal.
@@DIYAudioGuy I was referencing a chart with 1200 watts rms / .75 for amp efficiency / 13.8 volts. the chart shows 115 amps requires 8 gauge wire. Am I doing something wrong? I attempted to link the chart but it keeps dissappearing, so I assume that is not allowed. Thank again for your quick responses. You have been very helpful with my project.
@@seanyounk1 That sounds like the calculation for the power wire leaving from the battery to the amp, and for that much power you're going to need four gauge.th-cam.com/video/To4uT85DUrY/w-d-xo.html
@@DIYAudioGuy Thank you. I double checked; I thought I was at 1200 RMS. I'm actually only 600 RMS so 10 gauge works fine. Thank you for the info.
This is hilarious because I have the Skar 10" dual subbox. It could have been built a little better though. Fabric could use some work
Thanks for letting me know. If I'm able to do a follow-up video I'll make sure to include your feedback.
Problem is they dont make a dual 15 inch box. Skar audio
Yep a flat small box doesnt have enough air space to make Bass!
I am putting a system im my 2016 lacrosse. Should i get ported or sealed? I already have the bose factory system so i just want more clean bass. Im planning on putting a 10' p3 i have a old school 600a iv amp.
Why does a prefab box have to be tuned odd? Like 32hz for example. Why not round it to 2 cubic foot per chamber tuned to 30hz with 1in baffles for a standard prefab box? I would be fine paying $150-$200 for a decent prefab box like that.
There are better prefabs out there, just hard to find them on amazon.
i use bass box pro to build boxes. i know what i can get out of it before i start cutting wood!!!!
I have two Pioneer 12' TS-D12D4 , i think im going to get this box for them. Your expert advice o kind bass wizard? :)
interesting observation about the flaring of the port ... if you weren't satisfied with such a defect and contacted the seller would you be making a "Port Noise Complaint"? (younger folks might not get that one) ... thanks for well done, informative videos
I must be younger, because I don't know the reference.
The skar box is ok the 10 box was better than the 12 version. Had to cut mine so my sub would fit. It's tuned higher than 32hz closer to 36/39
That is good to know!
Hoffman’s Iron Law
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Can you do a review of pyramid bps12 bandpass prefab. Use different subs though for test please. Pyramid ones will blow most likely. I have one of these; it's loud, but lows aren't as solid as I would like.
If Pyramid sends me one, sure.
@@DIYAudioGuy Yeah, everything costs money lol
I’ve used skars boxes there good if you looking for something to get started but isn’t the best the one in this vide I would use jl Audio w3 12 in it
For sure.
Everyone keeps saying the baffle is weak, but it seems like bolting a lipped steel ring (the speaker) to the hole would stiffen it quite a bit.
It would be interesting to see someone run some boxes with air pressure in solid works to get a better idea of where bracing needs to be. Everyone seems to add 45s to corners and other stuff but placement always seems random and many cases where I know a simple horizontal gusset would be more effective
That's a good point. Never thought of it like that.
I have a scosche 10inch enclosure paired with their discontinued 10inch HD subwoofer and I also have a 12 inch aswell paired with a sony xplod GTR121L so far so good also have 2 discontinued scosche 12inch subwoofers in a wedge style enclosure ported
I did not even know that Scosche had subwoofers. I learned something new today!
Bro, if you have a Dyno, you should just do a string of videos testing a bunch of different subwoofer ratings. There's a few, here & there, but no one has more than 2 or 3 brands. Like Derek Willingston has tested probably 100 or more amps, that's kinda his thing. Couple subs, but still, not very many. Someone needs to do subs like he does the amps. Big boy gang moves.
That would be fun!
If you're on a budget, would it be better to go with 1 15 over 2 10s or 12s?
Great video! Wish I had found your channel sooner.
Glad you liked it.
Avpriority is a seller on eBay and its a awesome box cut with cnc
Are they expensive?
@@DIYAudioGuy 200 to 250 a box
They also do speaker rings but I had 2 12w6's for 3 yrs with no problem
@@johnsteger That's cool. I've toyed with the idea of making rings with scrap MDF and seeing if I could sell them.
I have a2020 nissan titan... what of box do you recogmend for two 12's kicker cvr under the seat or should i switch to 10 inch?
I have that first box. It’s great!
Glad you like it.
@@DIYAudioGuy THANKS MAN!
Could you do a part 2?
At some point, yes.
@@DIYAudioGuyawesome thanks.
That box with the Skar SDR 12s 🤤🤤
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I love to hear about it
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I had the 1st box with some audiobahn aluminum q 10s lol. It sounds good as hell to me back then lol
cool
Would the E12DSV Box work well with a pair of P3D412s
Rockford Fosgate recommends a bigger box.
@@DIYAudioGuy could you help me find a good box I’ve been looking all over
As I build boxes. I will tell u. I will buy a bbox myself. It’s a good quality choice. It’s close. But, if u want it tuned to its capabilities build it. Skar is built for their speakers. Yes they’re good. But not every speaker can do 32 htz.
For sure! Always best to match the enclosure to the driver.
I have that skar box. The speaker wire they include is garbage. My only complaint and it's too small for most of thier subwoofers
Yep.
I was not impressed at all with my Atrend Ram 1500 "B-Box" from Amazon. I complained and they gave me a partial refund. The pictures showed a nice, metal, push to connect speaker terminal. On the actual box was a cheap plastic thing that couldn't even fit 12 gauge wires, so I had to change that. #2 The "caulk job" was very sub standard, so I had to re-seal it. #3 It specifically said and showed that it came filled with poly fill. It arrived empty, so I had to run to the craft store. I normally build my own enclosures, but the one for the Ram Crew needs some really complex shapes.
When I was researching for this video I noticed that the price had DOUBLED compared to what I paid for mine,and like you said the pics showed poly-fill and better terminals. For double the price, hell no. Especially if you don't get the upgrades. But for what I paid it was just fine to get me started. My goal was always to fiberglass a box, that is happening this summer.
Got a skar evl-12 i just bought. Looking for a sealed enclosure but most everything out there is ported these days😫😫. Some good quality brands but nothing for a single sealed box @ 1.75 sq ft.
Try building your own. Home Depot can cut the boards down for you if you don't have a saw.
Was looking at subbox pro website for box plans. Dont know how reliable that site is.
@@bmtkid00 I've never used it. I've always just done the math myself.
Great advice !
I have 6 1/2 inch two way in-ceiling home speakers. I have plenty of attic space for instalation. What size of enclose box would you recommend to install ?
Thank you !
Those speakers are typically designed to work free-air, meaning no box should be needed.
Great learning experience.
Glad you think so!
What’s your take on the Q bomb rhino lined boxed ? I have the spl duel 12” I think it’s tuned to 34htz I have 2 sundown audio zv5’s in it
I have had some of my viewers tell me it is awesome, and some tell me they hate it. They appear to be built properly.
I’d love to learn about Hoffman’s law
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I bought the B Box and the back blew out needed to add some dry wall screws lol
You mean like the back wall? That is unusual! Sorry that you had a bad experience with the enclosure.
I have a fi audio q12 and I want to use it in my home should I build the box definitely
fi makes some beastly subwoofers, I think you will want to build a custom box.
@@DIYAudioGuy should it be built defrent than the car audio specs. Bigger or smaller defrent tuning for being in a room instead of a trunk
You should check out d4S prefab boxes those are pretty good prefab boxes for a cheap price
That's what I hear.
Lol, I had an expert make a custom box for my sub, and thought he knew better than the manufacture, and surprise, it's distorted because it is the wrong volume.
What did he do wrong? If you make the box to big you get distortion when the sub exceeds x-max.
Mobilesoundworks used to make some damn good prefabs. But they don't seem to be around anymore
Bummer.
Hello DIY, What would you suggest for 2 CT sounds tropo 8's on a CAB 1600.1 AT 2 OHM
I have no experience with those drivers, so I can't make a recommendation.
what's a good prefab box for two solo baric 12s? Thanks
This is the best one I could find: bit.ly/3Etb4O4 but it is much smaller than kicker recommends. I think you should consider a custom box.
The skar box is unavailable
Must be the lumber shortage.
I have the box pictured in the thumbnail was hoping to hear about that specific enclosure 🤦🏾♂️🤦🏾♂️
My goal when making this video was to teach you how to evaluate the enclosure for yourself. Clearly I have failed in my mission and I will need to make another video.
@DIY Audio Guy definitely was a gem of a video. Jus was hoping for some insights on my enclosure as im in the process of refurbishing it. Took the carpet off sanded off the adhesive and the paint on the face. Have a few ideas on the refurbishment of it but dunno if it's worth it. But this was a great video.
@@mybrothaskeeper4156 👍