21 Inch DIY Subwoofer build guide! The best GSG sub for your Home Theater.

[@brightstarlastname2812]

Cut 19.83" diameter hole in wall. Mount speaker. Job done.

[@elsey1976]

Infinite baffle! I see what you did there. Also wouldn't require TONS of wattage

[@ChannelBri]

play movie, no more wall

[@kaedeschulz5422]

@@elsey1976 And how about a front loaded horn? try that with an infinite baffle design :D

[@brunolamarche100]

Really I did just that many years ago - through the floor! resonance box was the basement. Just need an infinite baffle speaker. A 15 inch will fit well between floors thrusts. Then just send audio signal through an active crossover and job done. Also: I used an ordinary "heat dock floor plate" to hide speaker. So I just SAW a rectangle hole through floors plywood, then screw speaker underneath. Bass like I never heard... caveat: better not tell your wife in advance.

[@rupe53]

Steve on … I like the way you think, but the reality is a normal 2x4 wall with sheetrock is going to flap like a screen door in a hurricane, never mind moving the furniture upstairs. Probably best to brace a bunch of 2x12s to a cement wall and load it with insulation.

[@paulevans4334]

My God that music is annoying, and just when you think it's finished it starts up again

[@JilesMcCoy]

It never ends!!!!

[@brianmcmillan2272]

Blooming awful music accompaniment

[@JilesMcCoy]

Brian McMillan what would you like to hear?

[@z030n3r]

One thing to note is when you are working with MDF, especially cutting/sanding, you should be wearing a respirator or at the very least a dust mask. MDF is made with formaldehyde and you don’t want to be breathing in any particulates

[@JilesMcCoy]

You are absolutely right! Thanks for calling that out.

[@Blaaake]

z030n3r lol I for sure breathed in at least a pound last week when building my box. Oh well.

[@JilesMcCoy]

Hope you are ok!

[@z030n3r]

Blake oh man, that’s not good for your lungs. Have fun with the builds, but more importantly- be safe. Wear personal protective equipment

[@apexpredator_jku]

Nice job. I highly suggest using threaded inserts and bolts for access panel and mounting the sub. In case you need to recone or get behind the panel, you could open it up for the lifetime of the enclosure and mounting surface will never degrade which MDF is notorious for. Another thing, Raptor bedliner is great alternative to paint. It's isiot proof and provides a tough and clean finish that'll handle abuse.

[@ZeroCool-vn9bd]

21:20 This is really good advice for anyone building MDF enclosures. The edges of MDF will soak up everything much faster than the faces of the sheet.

[@snauspockets9924]

When your speakers are so big they block the projector screen. Looks to me like you need to knock down a couple walls and remodel! *ducks the wife's backhand*

[@JilesMcCoy]

I need to dig the basement out and tunnel under the next door neighbor! Or a 2nd subfloor! I have an A-lens and will be getting a scope screen to fix the screen issue. Fun times a-coming!

[@JilesMcCoy]

You can check out the new center channel install video.

[@rupe53]

If one was to compare this to building a street rod, then we're talking BIG BLOCK material! I see the driver is rated to handle 2,500 watts.... no joke. What they don't show in the specs is rated SPL at a given input power, or the other usual data like frequency response, curve, etc. Based on the links I see the driver is $750 and the cabinet is $500. We're in deep pockets territory so don't tell the old lady what you are spending.

[@josch_drummer5129]

2 from these subs with a Behringer nx 6000D for a classic rock band playing at about 50-100 people might be overkill but cool

[@JilesMcCoy]

Super cool.

[@NickyNicest]

The only reason I want to buy a house is so I can have a giant subwoofer

[@JilesMcCoy]

Me too!

[@MrShiffles]

Want to see a video of you cracking your neighbors foundation with that monster! Great build and subbed :0)

[@JilesMcCoy]

Tried and failed. Although I think I broke my back moving it down the stairs.

[@Hertzsogood219]

Very nice build. I love you're whole system. Looks badass. I can just imagine how good it sounds. I hope you don't have any neighbors close by.

[@JilesMcCoy]

Thanks! Keep following along in the Jiles Journey series and you can see all of the changes I am making. Lots more to come!

[@GaryLeeKaHo]

This subwoofer is going to shake the earth.

[@JilesMcCoy]

Its big and can play loud... but you can set it to what works in your system well.

[@DracolegacyOfficial]

you would probably love the SMD magnet terminals www.wccaraudio.com/1-channel-neo-terminal.html

[@JilesMcCoy]

Those are cool. I like industry standard stuff though.

[@DracolegacyOfficial]

@@JilesMcCoy every standard started somewhere

[@JilesMcCoy]

Subscribe to see all the new content! bit.ly/go2youtubenow A better edit of this video is here: kzbin.info/www/bejne/f36ZenSXpbumeLc The distorted aspect ratio video at the end is fixed!

[@DREDKNOT2063]

Love the show and the build, an I've got a question for you have you ever tried to build a an open baffle subwoofer specifically a duel 15in w frame baffle designed I've considered such a build an learned that any driver with a Qts value at .7 or higher is a good place to start but trying to find one that's 98db efficient and is under 300$ a driver is hard any advice on how to get one and build a duel 15in open baffle w frame That would be great my current planed build is two diy subs for my home theater each to be a twin 15in DVC 4 Ohms either to be in a sealed with radiator or if I can find the right sub for it a open baffle subwoofer, my preference is for the open baffle is a driver that takes a total rms of 800watts each for a combined total of 1600 as I'll be using my two 1502 crowns in Bridged one to push each of my radiator builds for which I already have a decent drivers for them but my quest to find a driver for my open baffle subwoofers builds I don't my preference is the same size and rms but with an efficiency of 98db an fq range to at least of 20hz on the driver and under 350$ per driver if that's possible. I'd like to see you do a two duel 15in DVC w frame open baffle subwoofers for your next vid after your current one thanks

[@JilesMcCoy]

Hi! That is an area that I've not delved into yet. Do you have a link to some similar builds that I could check out to start some research?

[@DREDKNOT2063]

I don't have a lot but what I have is very interesting an defiantly has me considering such a build for me just trying to find a car subwoofer that can suit such peramiters that are needed for open baffle subwoofer design but that's just for costs the best iv seen for use in a open baffle Subwoofer design is from acoustic elegance this is a 2pt video about open baffle subwoofer kzbin.info/www/bejne/fX2ui4l4js5ggsU I'd planed to go for what's called a w frame after I sort out what in willing to spend on such a build

[@DREDKNOT2063]

Here's a link to open baffle subwoofer design www.hifizine.com/2012/12/subwoofer-origami/ check out the w frame and the dipole w frame www.hifizine.com/files/2012/03/Slot-loaded-open-baffle.png www.hifizine.com/files/2012/03/Slot-loaded-W-frame.png www.hifizine.com/files/2012/03/Ripole.png (my current fav to try) lautsprechershop.de/pdf/ripol/ridtahler.pdf

[@JilesMcCoy]

Thanks! This looks like a SUPER cool project to try out. It is on the list!

[@soniclab-cnc]

adding glue to the outside of the joins does not add much for strength... mostly a waste of glue. Use some latex caulk for added seal in the corners if needed...

[@JilesMcCoy]

It makes me feel good though!

[@soniclab-cnc]

@@JilesMcCoy I cannot argue with that...

[@lonny3344]

next video you need to add seat belts to that sofa in your sound room.

[@JilesMcCoy]

The sofa does get some good motion!

[@AZCobraman]

I'd have dry-clamped that baffle, then drilled and doweled it before gluing. Takes away the ability of it to slide around. Cool vid!

[@JilesMcCoy]

That would be a great way to go!

[@AZCobraman]

It's how I do it with figured guitar tops.

[@horsepowerjunkie9040]

Awesome and informative video. Thanks for putting in the time and effort Jiles. Can't wait for your review on this sub.

[@JilesMcCoy]

Its been great so far!

[@BigSmartArmed]

The IKEA subwoofer.

[@JilesMcCoy]

It really is. That is a great analogy. Anyone can put it together and have a great product.

[@JohnErikjohansson]

@@JilesMcCoy Yeaaah riight, o would love to build it, but i cant even order this as a kit to Finland ?

[@JilesMcCoy]

@@JohnErikjohansson GSG will ship anywhere in the world. It might be expensive though.

[@JohnErikjohansson]

@@JilesMcCoy Yeah looking for european DIY kits, no lock :( thx anyway

[@lloydboyette4815]

@12:00 you talk about the energy that a 21" sub produces and to use extra glue to re-enforce joints for a stronger bond... I'm curious why you didn't countersink some wood screws into the box. Does that kit not allow it? Also, I see that kit is pre-cut for delivery. For people that have a CNC machine, are the plans public? My HOA would not allow a sub that big. The neighbors would complain for sure.

[@JilesMcCoy]

The glue is stronger than screws when attaching wood to wood. This is a consumer product so I wouldn’t think the plans would be available anywhere. The sub can play as loudly or quietly as you like. Just set your dials where it works for you!

[@lloydboyette4815]

@@JilesMcCoy Thanks for taking the time to reply. Much appreciated. :)

[@amanteapasionado6836]

Damn, that little room with all those subwoofers, my kinda room.

[@JilesMcCoy]

Its fun! But its not that small! 14x18

[@JilesMcCoy]

Rick Long Not at all! When my kids watch they only turn on 1 sub. They say it sounds better to them.

[@JilesMcCoy]

Rick Long It’s all Starke Sound Halo 5 series speakers. Power is from a Starke Sound A7. I have videos about the build posted.

[@1Sparkygod]

Where is the video of you wrestling that beast downstairs, LOL?!

[@JilesMcCoy]

That was quite touch and go. Not sure how to be it back up the stairs though.

[@ryanlangan1060]

Check out Ron Paulk's channel. He has plans available for $25 or less for a a lightweight build table that will be perfectly flat. It's also easy to hang up on the garage wall so it's out of the way.

[@JilesMcCoy]

Thanks!

[@JilesMcCoy]

Subscribe to see all the new content! bit.ly/go2youtubenow

[@teamklr2bar]

You can use the 2nd half as a fixture to hold the interior panels I. The correct positions. Once those panels are dry you can remove 2and half panel, check everything and then glue the 2nd half on . Thanks for the video!

[@JilesMcCoy]

Thanks! Its a super fun subwoofer!

[@jasonreneewood8589]

This kit is cool but way overpriced

[@JilesMcCoy]

It is cool!

[@travisgulley2652]

Can a 18 inch eminence omega pro subwoofer perform be put inside of a t line aka a transmission line enclosure.

[@JilesMcCoy]

I am sure it can. I don't know how well it will work though.

[@tbnterprises]

Are there any companies that do what GSG Audio does, but with Plywood? MDF, Particleboard, and OSB are not exactly ideal for portable/live audio, and I'm interested in building some 21" subs for my PA system for my band. We currently have front-loaded EAW speakers(1x18" Subs, 15"+1" horn tops) and 10,000 Watts of power(5 x 2,000 watt Class D amplifiers.) We're strictly Heavy Metal, and the drummer uses a pair of 28" kick drums, that are completely detuned and half filled with muffling because the sound we are after is.... you know when a delivery truck drives by, and you don't necessarily "hear" it but you feel it? We are looking for that type of low end. It is those lowest lows that we are after. say below 60hz, so these 21" subs would essentially just be used to cover that range below 60hz.... maybe even just below 50hz. And we're not necessarily looking for horn-loaded designs, since we're typically playing under 300 capacity clubs. We do this for fun, but we are wanting to create a certain experience live.

[@JilesMcCoy]

ineedarealjob Can I email you? You can send to me at [e-mail]

[@JilesMcCoy]

GSG offers this now I believe.

[@gamecock2465]

You should have bought a Brad nailer for this build. I have a Ryobi 18v nailer that works great. Once you get one you will be wondering why you waited so long to get one. Can’t wait to see the REW results.

[@JilesMcCoy]

I was trying to follow the instructions directly. A brad nailer is a great tool!

[@tonskulus]

Not quite horn subwoofer but 6th order bandpass. Great build anyway!

[@JilesMcCoy]

Thanks!

[@maz4bz592]

Great video. I highly recommend a pair or more of saw horses. Gets your enclosure up to an ergonomic work height and allows lots of clamp location options.

[@JilesMcCoy]

Thats great advice!

[@colourbasscolourbassweapon2135]

looks like a pa subwoofer to me ngl @@JilesMcCoy

[@aaad01]

If you seek true cinema sound, why not buy true cinema speakers? There are plenty of used pro JBL subs and cinema systems for sale on eBay and such. Could have bought a used 4642 double 18 cab for around $600. At least that gives you some resale value. Could get a 4670 system or even a pair of cheap 4638 that would far surpass this. You'd be surprised of how cheap the used pro JBL cinema stuff can be.

[@JilesMcCoy]

Great advice! This video is geared toward folks that want a build project primarily.

[@chathurasadaruwan3048]

Oya peti walata gana kalu lakare ake nama mokadda koheda ganna thiyenne

[@JilesMcCoy]

Hmm

[@ben3369]

If I want to use those for DJing dance music at parties do I have to make any differently? Sorry I’m a total noob!

[@bradthompson258]

The fold will be somewhere else in the house. Usually in the kitchen cupboards and your wife kicks you out cuz you're breaking glasses and plates. P.S. Room not big enough for subsonics.

[@JilesMcCoy]

Things work well enough down to 10hz. I dont measure lower than that.

[@bradthompson258]

Just remember that the room itself has to have enough cubic feet to reproduce low frequency. On tour we could produce 16hz -18hz with many, many, 18" coupled together. If you've ever heard subsonics from a car going by, well, that's because that's where the null is. They can never hear those freq's in the car cuz there's not enough cubic ft. to reproduce it.

[@JilesMcCoy]

@@bradthompson258 www.linkwitzlab.com/rooms.htm

[@x86FTW]

@@bradthompson258 I agree with this.. The room seems insufficiently large considering the desired tuning of the system.

[@snauspockets9924]

The car analogy is a good one. Just yesterday I thought my JL 12" was turned down low inside my car but then my wife tells me I am bumping Costco inside. His wife and neighbors can hear that upgrade more than the guy sitting in the room itself....but it sure is fun yeah??!!

[@paulvl4430]

Keep uploading like this stuff's

[@JilesMcCoy]

Next build is on the way. Have the drivers and the box kits. Its the new roundover Marty Cube. This is a sub that will fit in almost everyone's theater.

[@ufarkingicehole]

Nice build . I think of folded anything, I think of Loud outdoor systems. I would like to see what you can do with let's say a quality 12 in a true transmission line cabinet

[@JilesMcCoy]

Sounds like a fun project!

[@paulthesoundguy1]

PAINT INSIDE PIECES BEOFRE SEALING UP BOX.

[@JilesMcCoy]

Very good advice!

[@fordjacka]

Awesome build! I've built quite a few speakers over the years and your video and quality of build is amazing. Great job and I'm super impressed. You even got me to sign in to comment. I'll be watching more of your work! Thanks!

[@JilesMcCoy]

Thank you so much! I really appreciate the comment and the subscription! More to come too. I have 2 Marty Cubes waiting on warmer weather to build! Maybe next weekend!

[@johnfurious8419]

Love your builds.... Thanks so much. Very inspirational (If you put your mind to it, you can do it)

[@JilesMcCoy]

Thanks John. That’s really appreciated.

[@andersonsam4392]

Please can you list all the tolls and materials needed for building a speaker

[@JilesMcCoy]

If you watch through the video you will see everything needed for this build.

[@johnsweda2999]

I would use builders adhesive a good quality one on all the cross members only the joints look very gappy. Did you not use any dampening material behind the driver?

[@JilesMcCoy]

No, no damping material is needed for this kind of enclosure.

[@kirarittberg5088]

John sweda A good carpenters glue is stronger than the cabinet material. It will exceed the strength of wood and far exceed mdf or particle board. The glue joint will not fail, I have learned this the hard way ! I choose to use a carpenters glue over construction adhesive for several reasons, it is easier to clean up, don't have to worry about wearing gloves to avoid skin contact and as stated on construction adhesive info "use only in well ventilated areas" (don't breathe the vapours!).

[@janinapalmer8368]

It looks like a vented band pass design .. but what is wrong is the front and rear port areas are different ! They should be equal !!

[@JilesMcCoy]

You should chat with the GSG guys!~

[@demofilm]

Watching this video, my wife walks in..... “ooh that is one big cat house,”

[@JilesMcCoy]

That would be one sad cat if the sub started up while occupied.

[@MarttiSuomivuori]

Bass Cat slaps 'like'.

[@mattnelson1366]

Amazing video, LOVE it! One question, can you give more detail on what specific "Spax Screws" you used?

[@JilesMcCoy]

I used the ones in the shopping list on the GSG web site!

[@lunam7249]

#6 fine thread drywall screws 1.25 inch long

[@miamiSincar]

wow man my dream

[@JilesMcCoy]

They are awesome!

[@samuelsinclair7562]

Yeah I would like to hear what to do if your 18 that's what they sound like interested bigger

[@deepair007]

In all seriousness, are those sized subs overkill for that size of room? I mean you must have a 4000 watt amp per channel so are you using about a quarter of the gain setting or just trimming the LFE channel low?

[@JilesMcCoy]

They are likely overkill for any room in any home theater. But that is part of the point. You do tune the to the output you need. But in the end you can also twist the knob all the way and go nuts too!

[@chancho00]

Why those numbers have been made so deep probably creating weak points in the future if get hit with something on the right spot, why not just paint cause that's kinder grade instructions there.

[@JilesMcCoy]

Good idea!

[@tincuppassracing]

Ported stuff too floppy

[@WayneMickel]

I watched another video of a man's speaker system he was saying his bass went to 15 Hz and the highs went to 45,000 Hz, I guess you cab feel the low bass but you cannot hear lower than 35 Hz or hear much past 15,000 Hz so what is the point of getting below 30 Hz even that you can only feel and most of these subwoofers do not put out a true 30 ft bass wave the Klipschhorn does using walls to create the wave.

[@JilesMcCoy]

You can feel bass all the way down to 0. I try to build flat down to 10 hz. Anything over 20K is useless. And anything over 15-17K is useless once you hit 50ish too.

[@Obsfucation]

I'm confused. Where's the horn part of this design? It looks more like a 4th order bandpass alignment. The mouth size and "horn" length are off by a factor of about 20 and I don't see any flare in it. What kind of horn is this? Also, if it really was a "horn" you're not doing it any favors by putting the mouth so close to the sofa. If you're going to speak authoritatively on these things let's get your facts, figures and terminology straight.

[@JilesMcCoy]

Hopefully to help un-confuse you : shop.gsgad.com/collections/horn-subwoofers Thanks for the post!

[@gordonm6128]

man that's just too much work. Why not save all that time and just buy a high quality REL or JL sub and call it a day? At least you know what to expect sound wise and have something quality and not a garage job. Also subs should be placed in front corners not in middle of rear wall. That's probably the worst place to put a sub.

[@JilesMcCoy]

The main reason is because you can't buy anything like this from JL or REL. They simply don't make gear like this because they are mass market. And you should try nearfield before you knock it. Its a different world from just trying to corner load small subs to increase output.

[@kewlbug]

Insane system... but no room treatment? You can build some stuff for less than what you prob spent on cables.

[@JilesMcCoy]

Plenty of room treatments there now.

[@bobbybiggs4348]

No screws in the cabinet? Don't use that cab for pa use!! I'd have that suka glued and definitely screwed! Also t nuts for the driver and access hatch. Has anyone ever seen nylock tnuts? Seems like it would be a good idea for high vibration atmospheres.

[@JilesMcCoy]

Bobby Biggs Correct, no screws ever in these builds other than to bolt things on.

[@ostelo84]

When I saw this on the home theater group I didn't realize you had two UM 15-22's in full Marty's also lol!

[@JilesMcCoy]

They are UM 18-22 :-) Check out the build videos on this channel!

[@tomdickharryjane]

So you in the AVSForum? I know I have seen a devastator build there and it seems too coincidental there is the same name here.

[@JilesMcCoy]

There are many in AVS!

[@foreverendeavors6210]

I may just build this one, been looking for the right one! I really like all aspects of it.

[@JilesMcCoy]

I love this sun. It’s awesome!

[@leightonscanes3890]

Do you have any of these kits available for a high output out door/club setting??

[@JilesMcCoy]

The high tuned devastator is the one for you for sure! Used by lots of people for this exact purpose. shop.gsgad.com/collections/horn-subwoofers/products/devastator-mkii-horn-baltic-birch-music-edition-single-unit please use the code jilesgsg when you order!

[@Hertzsogood219]

I've been looking into building a Horn loaded enclosure for a 2003 Tahoe. I have plenty of space, I want to get loud, but I want to hit the lows as well as the high notes. As low as 26hz if possible. Any suggestions?

[@JilesMcCoy]

My guess is that something like this in a SUV would be enough to make you puke :-) I cant do comparisons to folks doing 160db burps but this thing gets damn loud in a room... something like this with room gain in a car has to be pretty sick. Id love to hear what you decide to do. Yes, this can do 26hz. Maybe needs a little EQ to help though.

[@erikbritz2637]

Build a 4th order my man PA is very different to Car audio look up ExoContralto and His 160DB car little Blue he runs two 18s on 10k watts doing 161DB and 157DB on music also his subs go down to 24hz or so...

[@dudemcgee256]

Check out Bill Fitzmaurice's designs. He has alot of horn loaded DIY speaker designs. I've built several and have never heard anything that compares. Look at the Tuba THT if you wanna get crazy. billfitzmaurice.info/THT.html Disclaimer: I have no affiliation with Bill or any other speaker manufacturer. Just love this kind of stuff.

[@hometheateraddict9583]

Look up submaximus v3 I've built 4 now with 21s loaded in them they go down to 17hz but are huge 36 deep 25.5 wide and 80 tall . In a suv it would just be insane

[@Hertzsogood219]

@@erikbritz2637 I hear ya. I understand the differences. I've built many different variations of 4th and 6th orders and I've built many ported boxes and walled set ups. I watched the build log for EXO's Frankenstein and Little Blue. I'm not new to any of that. I've been into car audio for a long time and I want to do something different. I wouldn't be the first to build a Horn in an SUV. I've never gotten a demo of one but I will when I get the chance. I'm not just going to build a horn outside then put it in, I'm going to design it to be built inside my truck. Its gotta be loud as shit, I just want to build it large enough to play low as well as high. Right now I have 2 15's ported tuned to 28hz. I love it, I love the lows, but I love the highs as well. The 4ths and 6ths I've built had very good bandwidth, but want it as loud as I can get and I think a horn is the way to go. Just to do something crazy as well.

[@RAVIKUMAR-uh2sk]

Amazing ,speechless sir super.. But difficult hard work.. Super sir..

[@JilesMcCoy]

Thank you so much 🙂

[@vat8367]

where is the horn? a horn has to expand! this is a horn: speakerplanarchive.com/images/bin/sbh-500.jpg

[@mardanananak]

You needed to put an overview in here first, of no more than 4m.

[@JilesMcCoy]

The beginning did go on pretty long! I agree.

[@LuisCasstle]

A lot of fancy equipment with zero acoustic treatment in sight. That's also a lot of speakers for a small space, someone is definitely deaf. 😅

[@JilesMcCoy]

Room is treated :) And speakers don’t = loud.

[@chrisvinicombe9947]

Just seen Zeos mention you and saw you in the comments thought I'd come check the channel out. Anybody doing DIY 21" subs is someone I'm happy to watch

[@JilesMcCoy]

Thanks! I appreciate it!

[@freibierfelix]

U used a PA driver right? So is this also for PA uses? Nice Video btw :)

[@JilesMcCoy]

I used an Eminence touring driver (PA). Its for Home theater.

[@oxnardadrianlopez6684]

Listen, I understand people want to see how you go about building your enclosures but the real reason why people watch this is to see how it sounds in the end and what do you rate it. Why make it two separate videos?

[@JilesMcCoy]

So people who want to watch to see how it sounds in the end and what I rate it don't have to watch the build.

[@wb5mgr]

Furniture Dollies from Harbor Freight make this much easier by yourself. Get 4.

[@JilesMcCoy]

Got em!

[@chrismunyao9951]

Hi is the plan private or available for the public..... Just watched this and have read all the bulk comments...

[@JilesMcCoy]

The GSG plan is private but there are versions available at AVSForum that you can use.

[@Solobaric405]

Do you have a video like this for any of your smaller Marty build? Wanting to try my hand at sub building.

[@JilesMcCoy]

Working on a Marty cube video right now! Check out the Instagram feed for pics.

[@semarbodronoyoi3240]

Bisa bikinkan bosss

[@JilesMcCoy]

Sounds like a good comment! They are BOSSS!!!!

[@RicardoPenders]

So much effort you've put into making the perfect enclosure and I assume quality drivers and then you crap out on the cables, I know for sure when you want to get the full power to those drivers that your flimsy cables are too thin, you really need a bigger gauge because when you drive those woofers hard your cables will warm up pretty fast, I'm sure that's the weakest link so if you ever get problems you know where to look first.

[@JilesMcCoy]

12awg is plenty big. It’s larger than the wire inside the amplifier....

[@RicardoPenders]

@@JilesMcCoy the wire inside the amplifier is also very short, every connection and every inch of wire is also more resistance that you're adding to the system so I stand for my suggestion to use a bigger wire gauge. Also if the wire inside the amplifier is a small gauge maybe it's better to replace those too. I have Phoenix Gold amplifier and those have really big gauge wires inside, I have even bigger gauge connected to the outside of the amp going to the speakers. You'd want to have the least resistance in a high power and high quality audio system to get the best performance.

[@JilesMcCoy]

@@RicardoPenders I don't disagree with the concept. But at these power levels and run lengths 12awg is the most that anyone would reasonably need to use. Some external guidance: www.crutchfield.com/S-jkNXkfIwhWH/learn/learningcenter/home/speakers_wire.html

[@tincuppassracing]

Two Alpine 15s equal 30.

[@JilesMcCoy]

Think about the surface area of the cone and the excursion of the voice coil. Not the addition of the diameters.

[@tincuppassracing]

Built my own sealed boxes Crown Amp Cant complain

[@jamesbell7246]

2(π7.5^2) ≠ π15^2

[@lunam7249]

omg!! this box is wayyyy to complicated!! and the router took out way to much wood strength

[@JilesMcCoy]

It’s really super easy.

[@ryanhill4918]

Cool video but I gotta say after 20 min of that same background music, I wanted to die.

[@JilesMcCoy]

I get comments both ways on this. Some folks want it to change, some want it to stay the same. Usually its not an issue.... but on these 30 minutes videos it is more obvious.

[@gillettimages9114]

i would never use screws to mount drivers i always use allen head bolts and t nuts so each bolt is threaded and you can remove as offen as you need and the mount holes wont wear out

[@JilesMcCoy]

Thanks for the tip!

[@pimvdfboersma8678]

Cool

[@JilesMcCoy]

Thanks!

[@lizface3656]

I cant make all those groves can i just use wood dowels? GOD BLESS

[@JilesMcCoy]

Meaning you want to make your own kit?

[@tonykartracer8032]

The heck is this....... a subwoofer enclosure or a Barbie Dream House Mansion?!

[@JilesMcCoy]

Tony Kart Racer Both of course.

[@НиктоНеизвестный]

А я думал у меня дома 15" сабвуфер большой))) хех)) нет)) да еще бандпасс... уфф... на неодиме... 21" да это жесть... эх жаль у нас такие конструкторы не продаются, я б тоже собрал)) да и боюсь представить сколько будет стоить такой конструктор выпиленный на ЧПУ-шке...

[@JilesMcCoy]

Это не так уж и дорого. Вы можете увидеть стоимость здесь: shop.gsgad.com/products/devastator-21-ported-horn-two-pack

[@НиктоНеизвестный]

@@JilesMcCoy Thank you for the answer). Good video! This subwoofer can compete with professional subwoofers, I think the sensitivity is very high. It remains to pick up a decent amplifier to 5 kW power, for voicing areas. For the house apparently enough and 100W of power))). Will you be filming listening to this subwoofer?

[@sandstormondeserts617]

Useless a lot of design but the results don't have good quality music in his performance

[@JilesMcCoy]

Where did you listen to them?

[@tobeybenway6352]

Glad to see someone else using a garbage can as a work bench!

[@JilesMcCoy]

Tobey Benway The struggle is real!

[@tobeybenway6352]

@@JilesMcCoy lol! I use mine all the time. Sturdy,just the right height and has wheels!

[@samuelsalins8309]

Great job. 🔈🕨...🎶🎵👍

[@JilesMcCoy]

Thanks!

[@nalinux]

I use soap on screws for MDF. This help quite a bit, also for cracks.

[@JilesMcCoy]

Thanks!

[@kbtube8125]

pre-drill, and put glue on the threads, sink the head down an 1/8" fill with everlast auto filler.

[@walterpinkney2200]

why didnt you use any dry wall screws,etc.how long do you think this box is going to hold up without any stucture support,just glue?

[@JilesMcCoy]

The glue is stronger than the wood or screws. So it should last until I take a sledge hammer to it one day.

[@ostelo84]

Using wood glue is comparative to welding metal. Especially with all of those dato joints and cross bracing.

[@philipellis4530]

You might have heard of a UK company called ASS, (Acoustic Sound Systems) but unfortunately have now closed down, but whilst they were in operation they built literally thousands of cabinets for most larger nightclubs not only here in the UK but abroad as well, I knew Tony Rossell the owner who has now retired and bought many cabinets from him direct from his factory, what an amazing guy, he developed the 18" and 21" folded horn scoops using as you mentioned B&C but mainly used PD drivers (Precision Devices) I'm not sure if you are using MDF or another propriety board but believe me just glueing won't last very long, in time the cabinets would literally fall apart under full load conditions, we use 18mm Birch Ply and not only glue but use many screws on dividers and braces, another UK company that build systems is 'Function One' supposed to be the best, and probably is but well over priced for what you are getting.

[@salvadordelgado2434]

Piano black or since you have blue and already primed it . Just a thought

[@JilesMcCoy]

Thanks!

[@babakara9127]

Hello have nice day l want to buy 18 subbass. Hooe can buy it l m living in turkey

[@JilesMcCoy]

Im not familiar with the market there.

[@P0LYBiUS7]

9:50 - "Go ahead and fill that number 2".

[@JilesMcCoy]

Gotta do what ya got to do.

[@courier11sec]

It's like the camera got a hold of some magic mushrooms at around 16:30.

[@JilesMcCoy]

Indeed! Premiere Pro got a bit wiggy on me and I missed it in my QA pass. This version has the corrected footage: kzbin.info/www/bejne/f36ZenSXpbumeLc

[@vishu996]

Joshuva bardwells brother.

[@wb5mgr]

Bra! That’s a huge sub for that room 🤣

[@JilesMcCoy]

Its a huge sub for any room bra!

[@erikbritz8095]

Its just big enough 😎

[@erikbritz8095]

I wanted four 15s then eight 15s in mine later on so...

[@PeterFeltersnatch852]

You do not have to pre-drill holes on MDF it's not going to crack people... And you use heat shrink on wires not shrink wrap 🤣🤣 otherwise in that good video 👏👏👏

[@JilesMcCoy]

Touche on the heat shrink. But I have split may a piece of MDF in the past with screws. Itss bad times.

[@matthewjustice3383]

I always predrill my holes in every type of wood. Especially MDF. Good habit to get into to.

[@shiowchangluh1873]

May I know from where you brought those speaker box kit, thanks

[@JilesMcCoy]

GSG Audio. Google the name!

[@luis21207]

Love the project but have an stupid question: what's the name of the band playing?

[@JilesMcCoy]

Gosh, it was a song from the Epidemic Sound web page. I use those guys for my video music tracks.

[@luis21207]

Thanks!!

[@neonafterlife]

the distorted aspect ratio was horrible

[@JilesMcCoy]

I agree. kzbin.info/www/bejne/f36ZenSXpbumeLc Just for you, a version with no distortion.

[@1marshall1me77]

I’m looking to build this , but curious as to if this would be sufficient for outdoor party use? Would 2 of these builds be sufficient for about 200-350 people outside? What is overall cost?

[@JilesMcCoy]

I think it would be dependent on the size of the venue.

[@1marshall1me77]

@@JilesMcCoy that’s the thing , there isn’t a venue. I’m thinking in an open field or on a pier in NYC

[@JilesMcCoy]

@@1marshall1me77 I suggest coming to the Facebook discussion group and asking folks that use them in exactly this scenario how they like it. I know they are used for this by others.

[@1marshall1me77]

@@JilesMcCoyoh thank you! Excuse my ignorance as I’m Just tuning in for the first time

[@roldsvideocollection7744]

Idol, i am your new subsciber 👍

[@JilesMcCoy]

Thanks for subbing!

[@sMASHsound]

neeeeeed the performance vid of this

[@JilesMcCoy]

Its coming. I did some initial measurements and it was clipping my microphone at more than 30% with output in the 120s. Short answer is that it can get super loud. Figuring out the integration with my 18s is going to be the trick!

[@sMASHsound]

@@JilesMcCoy dude, thats INSANE!!!!!

[@sweetcup6694]

As a hardcore woodworker and cabinet maker all that glue slop made me cringe.

[@JilesMcCoy]

Thats the great part about these units.... you don't have to be a hard core woodwooker and cabinet maker to get the job done and have a good looking end product. I'd rather too much glue than not enough. Of course, the perfect amount would be better.... but most of us wont know how to get it perfectly right... and thats ok!