21" DIY Subwoofer Q&A and Review! The Devastator - Horn Loaded Eminence NSW6021-6. GSG Audio!

[@JilesMcCoy]

Check out the channel for more new AV and Home theater information: bit.ly/JDM_World_KZbin

[@keegankarsyn7080]

I know I'm kind of off topic but do anybody know a good place to stream new series online?

[@merrickbenton3549]

@Keegan Karsyn flixportal :D

[@keegankarsyn7080]

@Merrick Benton Thank you, I signed up and it seems to work :) I appreciate it !!

[@merrickbenton3549]

@Keegan Karsyn no problem :D

[@levrone0075]

discovered your channel over the past few days, getting back into audio after about 20 years and you seem to have this knack of talking about everything i'm pondering about! Your channel really is a breath of fresh air, A gold standard of reviews in my opinion.

[@Joe-ok1ri]

how do they compare to a (w) tunnel cerwin vega type bin? i am soon looking for the lowest sub sounds i have jbl mids and horns for the mids and crown amps thanks for any help

[@JilesMcCoy]

I’ve never seen a crew in Vega bin before.

[@XudenGroupLLC]

Would be possible to use the Dayton 21” Kraken woofer in this enclosure?

[@JilesMcCoy]

You sure can!

[@sachinnowrang5732]

Hey how would u compare this Eminence driver to the b and c sw115 18 inch and the b and c 21sw Ipal? Which do u think is the best and loudest?

[@JilesMcCoy]

I haven't heard all of those before. As far as loud goes... They all will be DAMN loud. But loudest /= best.

[@huey8431]

For pure music SPL would you do one 21” Kraken or two 18”???

[@JilesMcCoy]

2x 21

[@huey8431]

I think I would break my back lugging it around! Lol or not??? I was hoping to use it for my DJ events

[@JilesMcCoy]

@@huey8431 it’s super heavy. Not designed for movement.

[@chrispool5454]

Just wanted to add, that enclosure is a well braced parallel tuned sixth order bandpass. Typically those enclosures are built to be driver specific, and when done right are one the most efficient ways to run a sub. Bose owns patents on the designs which is why you don’t see them used commercially except by bose. Great content btw!!!

[@captainkirk3000]

there are plenty of companies that have bandpass designs, turbosound is one of them

[@briandanielself2617]

I bought my Dad a P-Audio SD212000N 21" Driver 2000rms for Christmas. Would that work with the Devastator Enclosure?

[@JilesMcCoy]

That is a question for the GSG folks. They would need to model that driver with the box and see what the resullts look like.

[@JoshM7]

Highly recommend the NX3000DSP as a great budget starter amp. Mine is the old looking model (Inuke3000DSP) and it's been going strong for a few years now almost on every single day for 8+ hours. (sometimes overnight if I fall asleep with it on) Currently running my (martysub) Ultimax 18" and (sealed 1.2 cube) Ultimax 10" on both channels (one on each) to help smooth out the response of my poor 11 x 12 room. And I almost never run out of power to play as loud as I need. But by that point every wall around my room is shaking pretty badly and on lower notes the ceiling and windows flex a fair bit. And that is typically louder than I need anyway without bridging the amp. Though I'd recommend a bigger amp with more guts and a Mini DSP if you really want to have more power for things like high impedance areas due to the box/wiring. My Ultimax 18 in the Martysub swings to 24Ohms at 28Hz for example.

[@johnedel5953]

I have someone in my area selling a Devastator and paraflex enclosure. They look the same . Do you know the difference?

[@JilesMcCoy]

I dont have any experience with the paraflex.

[@archos121]

Interested to know if you suggest a combination of full Marty and a devastator. Or just the Devastator (or 2) ;)

[@JilesMcCoy]

If you can fit it... 2 devas are almost certainly enough to satisfy your needs. Boxes are big though.

[@jcklimo]

@@JilesMcCoy If you have the space, I'd think 2 devs with a high pass around 35 and a couple full marty with a high pass around 15 and a low pass around ~45. That way you really cover all your freq.

[@JilesMcCoy]

@@jcklimo That would work! You could probably just put identical HPF and LPF on both and be ok. The subs integrate very well. They are tuned almost identically. Another option is to use a sealed sub with no HPF to get the super low stuff. Ive seen that put into place with Devas.

[@austinsmith8448]

Do you ever show this thing actually playing? Yeah I know you can't see the driver but it's nice to hear some audio with some footage, ya know?

[@JilesMcCoy]

Watch the bass test video of it playing Curtain Shaker.

[@sparco317]

Either side of the driver has a chamber/port. Its a 6th order bandpass. Even if the front openings dont have any length they are still tuned and still act like a port. a Horn has flares.

[@coope260]

Thanks for the great video series following the devastator build. I am in the process of building my first home theater. I have decided to go diy for the subs but I am struggling to decide which to go with. I am between two devastators, two full martys, or one of each. I will add I am a bass head, I had some pretty large car audio systems in my younger years. One of my concerns with the devastator is the drop under 20hz. I would love to hear more info from you on your preference between those two subs. I would also be interested to see plots of you running only the devastator, only the full marty, and then both together. It would also be interesting to see how the performance/plot changes if you hook up your NX3000D to the devastator. Thanks for the great content!

[@JilesMcCoy]

Congrats on the new build. I would love to see photos of it as it comes along! The Deva has really won me over. If you have the space I would go with 2 Devas vs 2 Martys. As I said in another comment.... if you want super low strong bass you can handoff the infrasonics to a dedicated sealed box. I'd build the 2 Devas first and see if you still have needs after that. You more than likely will be happy with the Devas.

[@gregorybahr4354]

Chuck at Kicker once provided a comprehensive guide on these "bandpass" and isobarick mount technology...the selling point of a bandpass is you can "factor in" up to 3to5dB (or acoustically double a single driver's output...) in a single box...the "trick" is in porting it half octave separates these 2 ports or they will cancel each other out...in my wife's Honda we could shoot & listen to Guns & Roses...had been able to peg my SPL meter from the Radio Shak

[@Brendagrady32]

Great video but a quick question why are you running a bandpass down to 20hz. , they shine at higher hz like sealed boxes.

[@JilesMcCoy]

Its in a home theater....

[@narmale]

absolutely not... bandpass boxes are like any other box... you can tune them ANYWHERE... a box is not a box is not a box... just because a horn is used on tweeters doesnt mean you cant use in down to 10hz... because you sure can to MASSIVE results you also use sealed enclosures on tweeters despite using them for subs... the reason SPL guys are using BP is because of the compression gain for SPL and DELIBERATELY tuning them to those higher frequencies for higher numbers... it has NOTHING to do with box type you can get ANY box to perform well at ANY frequencies... you just have to design for it, dont just say a box is limited for a specific duty because you've only seen it done that way... there is ALOT of tech info out there that you have no clue about... be willing to learn it

[@drumbangerproduction]

In the low end side (around 15hz) would you prefer devastor or marty?

[@JilesMcCoy]

Donovan Capron The feel pretty similar to me at 15 hz. I set my HPF at 16hz for both and they seem to be handling it pretty well. I would go with the Deva if you have the space.

[@themodifiedlife2774]

JDM World do u think it would be needed to run 2 full Marty 21s with 2 devas to hit lower notes or would 2 devas be enough? I’m sure thinking big for my home theater 🤣

[@sachinnowrang5732]

Hey this sub is 6 ohm. I don't see any of those recommended amps saying 6 ohm . They are 4 and 8 ohm will that cause any problems?

[@JilesMcCoy]

No, its fine.

[@sachinnowrang5732]

@@JilesMcCoy ok great thank u.

[@anoopvimal3313]

Bro, can we use pro Audio subwoofers for HT purpose. It has an enclosure tuned to 34Hz. Can it really go that low. Also commercial cinemas uses pro subs, kindly comment

[@JilesMcCoy]

My pro subs are solid down to 16 hz in this box. That is where I have the high pass filter kicking in. Using eminence touring drivers. Super bad ass.

[@anoopvimal3313]

JDM World that’s great bro. Just one doubt, can tuning an enclosure low can change the way it performs. Because my pro sub is recommended for 34Hz tuning which is almost a high tuning. Can I change this tuning and expect my sub to play low??

[@joaquinaguilar5942]

Im wondering would i need something like this 21" midbass/low end woofers or go lower with the full martys 18" for lower end. My main stage LCR are qsc's 4 way cinema speakers with dual 15's for low end. Goes down to 30 htz, got them from craigslist. But im not sure if six 15"s and three 10" on horns is more then enough for midbass. The highs are clear also on a horn, couldnt pass up the offer when i found them. Let me know if adding two full martys would help or devastators for low end.

[@JilesMcCoy]

In real world applications the Deva will have approximately as much low end extension as a Full marty. I would say the decision criteria should be: DO you want more midbass headroom and can you fit the larger boxes in the room. And does the Deva break the bank? Its more than a Marty obviously.

[@joaquinaguilar5942]

@@JilesMcCoy im leaning more towards the full martys. Or come up with a different desigh for the enclosure of the subs i built, they are 2 dual 15" subs with softer suspensions on tc sounds frames, with concept csp motors, its hard to bottom those things out. Or should i recone them to 18's. Decision's.

[@collinbartholomew3613]

So in diameter what's the size depth height and width of this speaker

[@JilesMcCoy]

You can get the specs on the Eminence site. Mine is buried in this cabinet!

[@sdansie]

I do a Halloween yard every year and I am looking for something that would add an audible impact such as a dinosaur roar or jungle drums. Would something like this provide that or is there something similar. What are your thought? Love your videos. They are awesome.

[@JilesMcCoy]

Thanks! For a GSG speaker the Devastator would likely be their best option. A number of people use these in their PA system for concerts. They put out a ton of low freq sound.

[@deanlacombe5006]

Music question for you. Would the devastator play double kick drum in rock music? A song to test out on it would be Your betrayal by Bullet for my valentine. First min is all that’s necessary. Also, of the three subs you mentioned for the enclosure, which (in your opinion) be best for music like this? Thanks in advance and keep up the great videos. I’m learning a lot.

[@JilesMcCoy]

Hey Dean, come over to the GSG Facebook group and we can get you a ton of info!

[@JilesMcCoy]

facebook.com/groups/GSGAudioSubwooferEnthusiasts

[@modernbassheads5051]

6th order bandpasses are notoriously bad at double kick drums and have poor transient response , your best bet is 4th order bandpass or high tuned bass reflex

[@brianreynolds6927]

I picked up GSGs new roundover 18" full marty cab in person, fully built, lucky me. Chatted with Kevin for a bit, super cool guy. The new 21" roundover cube looks very interesting, maybe that one will be next, shh don't tell the wife. What's the community feedback on the 21" cube?

[@JilesMcCoy]

Kevin is a very cool dude. Id like to try a 21" roundover cube too. I am doing 18" roundovers this weekend. Although I need to find a driver for the boxes...

[@kevings26]

Thanks Brian. If you need anything else, just reach out. Have a great weekend,

[@Asdfbedffhdsxe345]

Awesome video....I'm from England and this Sub is bigger than my house.... But I want one!!

[@JilesMcCoy]

Thanks!

[@НиктоНеизвестный]

Good things are expensive, and nothing else. This subwoofer was very cool. It has huge potential. The design of the speaker subwoofer-I was all clear from the first video about it. This is a mixed design, the front part of the speaker diffuser is loaded on the horn and plays the middle and upper part of the bass frequency range, and the back part has a port, with a fairly low setting that provides a very low bass. I still have enough 15" inch subwoofer in bass reflex box power 1.5 kW. Class d amplifier. DSP is a useful thing, it helps to adjust the frequency response, but unfortunately it is not available to everyone. The main problem of large subwoofers in the room is the re-reflection of sound waves, which requires serious preparation of the room itself for listening. Otherwise, there is a chance to get a strong tambourine instead of detailed sound. Thank you for the video, it is really very useful, especially for beginners. In Russia, professional speakers, amplifiers and other home appliances are rarely used. Many fans of loud and high-quality sound use auto-sound components in home speakers because of the availability of prices, professional equipment is very expensive. Well, the body is usually made of chipboard, MDF or plywood. Thank you again!

[@JilesMcCoy]

One day I would love to go to Russia to see how home there is done there!

[@НиктоНеизвестный]

@@JilesMcCoy how are houses made? Sorry, the difficulties of translation))). I suppose you meant how do we make home sound systems? Or are you talking about building houses? Ah and Pro homes I, too, can you to tell). Ordinary apartment buildings in large cities are the same as yours, panel structures, concrete, rarely brick. Individual houses in the country or on their private land plots are built of two types, the first - for the warm season and are used mainly as cottages, for recreation and cultivation of agricultural products, and the second - solid for year-round living. The first ones are mostly wooden, made of timber, panel panels, frame type. Even about a layer of thermal insulation in our weather conditions to live in them in the winter as a rule it is impossible. The second, solid, made of brick, foam concrete, in rare cases cast concrete. They already have their own independent heating and everything necessary for year-round living.

[@JilesMcCoy]

@@НиктоНеизвестный I was speaking about the theater designs. Speakers, amplifiers. Thanks for the details though!

[@НиктоНеизвестный]

@@JilesMcCoy Understand, for the most part of the population used a conventional sound system out of the box which would only require the connection. Some serious sound with the selection of components, only a few are engaged. And there are even fewer home-made workers. It is very common to use the old sound technology of the USSR, acoustic systems, amplifiers. The technique is quite reliable but requires some improvements and restoration. We currently have very few companies that produce speakers or acoustics for the home, mainly imported equipment. But professional equipment is made quite a lot. From large it is "NOEMA" in Novosibirsk, produces speakers for various purposes, including for professional subwoofers.

[@dickfantastic7908]

Pride Audio!

[@superspeeder]

Dayton Audio has a couple of new low-Q 21" options that could shave a few bucks off the cost of this project. Have you considered these drivers for this enclosure?

[@JilesMcCoy]

superspeeder Which models are you thinking of?

[@superspeeder]

Dayton Audio PSS545HE-4 Vortex 21", 21mm Xmax, $500 www.parts-express.com/dayton-audio-pss545he-4--vortex-21-professional-subwoofer-with-5-voice-coil-4-ohm--295-052 Dayton Audio HTS545HE-4 Kraken 21", 21mm Xmax, $500 www.parts-express.com/dayton-audio-hts545he-4-kraken-21-high-excursion-subwoofer-with-5-voice-coil-4-ohm--295-054 Dayton Audio PSS555-8 21", 11mm Xmax, $300 www.parts-express.com/dayton-audio-pss555-8-21-pro-subwoofer-with-45%E2%80%9D-voice-coil-8-ohm--295-050 They're all low Q drivers and might be suitable, if not quite as heavy duty as the Eminence driver you use here.

[@OFFTHELEASHGAMING]

so my question is, im looking at 4 full martys, um18s, or 2 devistators, do you think 2 devistators could out perform 4 full martys, do you feel the midbass alot more with the devistator than the full martys? would def like a comparison video

[@JilesMcCoy]

You will absolutely feel the midbass more with 2 devas compared to martys. Its not even close in my mind.

[@OFFTHELEASHGAMING]

@@JilesMcCoy ok cool, how about all around movie experience, do the devistators lack any thing that the Marty's do, would 2 devistators be good for all around bass for a movie

[@jcklimo]

@@OFFTHELEASHGAMING As you can see from JDM great vid, is the dev really rolls off at 30hz. If you want to get into the teens multiple martys plus a couple devs for above 30hz, i think, is the way to go

[@stevenlie3957]

devastator is 6thbp and we tune the front and rear tuning and get lower tuning

[@Eurica76]

How long to I let the glue dry before i try to move it & glue to something else ?

[@JilesMcCoy]

If you want it set pretty hard you can wait 30 minutes.

[@flightpath22]

I’m sure Aquaman is fine, haven’t had the pleasure with a proper setup. I can recommend Mad Max Fury Road. Holy ship... Nuff said.

[@JilesMcCoy]

Good one for sure!

[@MarioRodriguez-yi3uj]

It would be really nice if you showcase the product while reviewing it.

[@craigenputtock]

I like your videos. Interesting and you are talented at putting this stuff together. Can you give us some opinions on smaller, low cost subs that are diy? By smaller I mean 10" or less.

[@JilesMcCoy]

Absolutely. 10" build is on the list! Next up with be 2 18" Marty Cubes though.

[@basspig]

140dB is my normal listening level for pop music bass. 137dB is my comfort zone. Ears and gut hurts too much once levels go over 140. And the neighbors complain when it's over 125dB.

[@JilesMcCoy]

You are indeed the basspig! I am super happy at low 120s.

[@timhumphrey2030]

Who sells it

[@JilesMcCoy]

GSG Audio, link in the notes.

[@JilesMcCoy]

Please share the video on all the social channels! Thanks!

[@killerpanda8399]

Awesome I'll build 4....🙂

[@JilesMcCoy]

DO IT! I would love to feel 4 of these in the same room!

[@karbonfiba2044]

Have you put any trap music on and just crank it up?

[@JilesMcCoy]

Oh yes, Its amazing.

[@robsienko950]

Yikes, its amazing that prices have nearly doubled in 3 years. Great content though!

[@JilesMcCoy]

Thanks!

[@johnsmith-qz4bv]

great video..i just emailed gsg about shipping and total cost for a pair of full martys.....

[@JilesMcCoy]

Awesome, good luck with your builds!

[@johnsmith-qz4bv]

@@JilesMcCoy ty

[@BOTPlayingBlackOPS6]

This should be for live sound with a pearl kick drum! ;) metal style! Punch kick!

[@JilesMcCoy]

Its awesome with Metallica!!!!! It will change your life.

[@erikkroll2154]

Well it is a pro audio driver so, it is basically a P.A. speaker.

[@jtonguam]

Definitely want to know about integrating a Devastator with the full Marty. Without the Marty, do you lose out on the real low end, or did you find yourself not even noticing compared to just running the Marties alone?

[@JilesMcCoy]

Hey - The Martys and Devas integrate very well. They are both ported and are tuned very close together. At first I thought you might want to have some martys for lower extension.... but at this point I think if you have 2 Devas you really aren't going to miss out on much of anything. I think that if you want to go after the super low frequencies you might take 2 Devas and put a very steep HPF on them at 20 HZ and then implement a monster sealed sub with a LPF at the same 20hz. SO that the devas hand off the infrasonics to a sealed box. Or maybe have a set of butt kickers installed to do 0-15hz rumble.

[@Panzerdorf]

How bad that the GSG do not make international delivery! (

[@JilesMcCoy]

I agree! It would be popular!

[@Test-Pilot1194]

Roman Khabarov popular is an understatement. I’d have multiple already.

[@billg63475]

just to clarify, if you pay the cost, Ill ship it to the moon!

[@E_iN_G7]

If u check out avsforum you'll find the plans. I just finish building myself a mini devastator a couple weeks ago

[@markbushinski1198]

Thanks for the informative video JDM. I was interested in this design until I heard you say the bass sounds like it is coming from a tunnel. I've heard too many bandpass designs that were loud but the transient response wasn't there.

[@JilesMcCoy]

This isn't a comment on transients. Its a comment on the frequency impact of the bandpass design. The transients are equal or better than other sealed or ported designs I've built. This speaker will smack you hard and fast.

[@markbushinski1198]

@@JilesMcCoy Ok thanks for clearing that up. I think there is devastator nano version in the works, i'll be following that development. Has anyone done a ground plane max spl test on the devastators?

[@JilesMcCoy]

@@markbushinski1198 I dont know. My mic only measures up to about 121db... so Im not in a position to do that. One of these should be throwing out somewhere in the 130s.

[@javedsaikh63]

how to built 12"

[@JilesMcCoy]

Would you like to see 12" sealed or ported?

[@danielduesentriebjunior]

It is a bandpass bassreflex enclousre, clearly no horn.

[@paulryan7159]

It's a band pass box

[@gregorybahr4354]

Technically...it's a 6th order design and has zero harmonic distortion which can burn up amplifiers as you cannot "hear" them clip...Bullet design audio... In 1992 the Boae patent for "this" design expired and Kicker had an incredible set of subwoofer plans ready to build when it did...

[@narmale]

eh... Onto the grid scene in Tron, let that thing tackle that note >:D

[@JilesMcCoy]

Nice!!!

[@sickjohnson]

Mega cool man, I am shocked too that it drops off before 10htz. So want to see a demo clip from Aquaman...with everything falling off that shelf behind you and your sofa moving. LOL I have a little 15" paradigm, and that thing rattles doors and moves furniture, plus cracked a closet door plastic type mirror about 4' watching the pod race in Star Wars episode 1.

[@brucemibus9523]

Which Paradigm? I have 2 Sub 25's for front with a Velo HGS18 for the rear to take all effect speakers bass. Atmos is rated at 40Hz for all effect channels.

[@sickjohnson]

@@brucemibus9523 PW 2500, I wanted the servo 15 but didn't have the bank roll for it because it was almost $7K new. Ironically quite a few of the PW 2500's were returned because of complaints of being too powerful, so they down graded to the 12" or the 10" versions. The sub 25's are very nice!

[@DREDKNOT2063]

It would be great if your next build video do a live Q&A, also could you do some budget builds say 1200$, 600$ for a total of two 15in custom subs for that price two 15in subs the boxes wire an Aesthetics, an then the best amp for right at or under 600$ that can drive a pair of 15in customs, plus could you do some builds other than bigass flat packs ther terrible cool an the dream for most of us who watch your build videos but but never could afford to achieve, I'd also like to see you do some budget open baffle subwoofer builds to. My current planed build of which I've got the amp,drivers, wires, and wood but have yet to cut it up is to be two ported 15in 2ohm subs tuned to 17hz one sub per Enclosure a both run off a crown xls 1502, my models software says with some light eq I'd get about 113db spl from 20hz at - 3.2db to 200hz at - 4.7db for me that's fine, how'd that be in the real when built an placed in the room, well when assembled I'll post a video link to you my budget for my total build materials, including amp was 1, 175$ that covers tax&shipping OH just for cost reference the cost of wood for both boxes together was 97$ total an for design reasons an my ports design structural integrity will be built from machine grade aluminum for 165$ that covers both boxes, 218$ jsc 4awg high current wire that gives my two 25ft runs, and my drivers were two 15in audiopipe subs for 195$ total

[@JilesMcCoy]

Ill see how I can work some of that in. For a dual 15 build in marty cabs you are looking at about 1400 for my typical style of build. That is with Ultimax, NX6000 amplification, precut box kits, etc. That is a really strong approach to standing up 2 monstrous 15s.

[@DREDKNOT2063]

@@JilesMcCoy that does sound good, my build design is meant to be as low profile as possible as my back is crap for moving or lifting big boxes as an can only move boxes around my room on a handtruck so small footprint is key for me, my current build specs are external Dims 49in high minus a 15in custom stand 12.25in deep by 19.3in wide with interior Dims at 46in by 16.3in by 9.25in deep with a 16.3in by 36in by 1in port, the port is compromised of a single sheet of aluminum thats .25in thick 36in long by 16.3in wide spaced and 1in away from the rear wall of the box with metal mounting strips of equal thickness with the interior of the box including port spray coated with epoxy resin an then some acostic duratex ,the total cubic box volume factoring driver displacment with the driver mounted on a 1in front baffle nets me 3.750cubic feet ,i also plan to spray coat the outside with resin to

[@andy16666]

Your room curve is looking a lot like the curve for your driver.

[@JilesMcCoy]

So that means there isn't much room interaction? Check out the newest video where I integrate this with 2 other subs. Pretty interesting results there.

[@andy16666]

@@JilesMcCoy Yeah, based on the frequency curve you showed, the basic shape is strongly influenced by the driver. I design enclosures for my amps, and I normally profile them like you have. I find the enclosure, and to a greater extent the room have a greatly diminished effect as frequency increases, to the point where you can just overlay the driver's curve and match it up. It's the bottom end that's really affected by the box, in your case. Measuring the room is still important. But I would subtract the driver's influence first.

[@austinsmith8448]

Crown amps put out their rated power. Behringer amps do not. Crown XLS 2502 rated 2400 watts RMS is equivalent to a Behringer NX6000, because the Behringer also only puts out 2400 watts.

[@JilesMcCoy]

I agree. I power mine with a 1502. It jams!

[@erikkroll2154]

I have seen 4000 watts out of the NX6000. RMS

[@thingsdemystified]

I hope you all know that RMS does not mean continuous. The Crown 1502 is rated at 525 watts per channel at 4 ohms but its true continuous output is measured at 271 watts.

[@Sheisintomalakasdino]

JTR orbit shifters, make sure you have good house insurance

[@JilesMcCoy]

Fun!!!

[@07wrxtr1]

Do the neighbors complain? I wish I could have a house that's on a large enough lot that it would be prime for a real HT setup!!

[@JilesMcCoy]

It’s all in the basemant so that helps a lot. Although it rattles things all the wall 2 floors up and my kids say their hair moves 1 floor up. :)

[@aninjacalledshank2278]

6th order.

[@JilesMcCoy]

Its quite the debate!

[@aninjacalledshank2278]

@@JilesMcCoy best baddest style enclosure in my opinion. Whatever yhe hell it's called. Built my first at about 19 took nearly another 19 to find out what it was. Maybe the rest of my life? My first was 2 12s and even an 8 sounds amazing in them. Can't imagine a 21! So jealous.

[@JilesMcCoy]

@@aninjacalledshank2278 This is the most amazing sub I've ever owned. Hands down.

[@whoevertf]

I didn't know Costanza from Seinfeld was doing youtube videos. :u

[@JilesMcCoy]

If I was getting Costanza money for them I sure would be happy!

[@snauspockets9924]

"Make you it's bitch" was a pleasant yet unexpected surprise coming from your mouth after "holy smokes" and whatnot. Sometimes you have to go dirty like that to actually describe a thing properly. When you said that I knew I had to ask my wife if I could do this to our living space...she said no.

[@JilesMcCoy]

Just imagine what 2 of them would make you...

[@E_iN_G7]

I believe it's a 6th order bandpass

[@JilesMcCoy]

Thanks!

[@enkrypt3d]

what does that mean?

[@E_iN_G7]

@@enkrypt3d front of driver is ported and rear is ported.

[@burreld]

Also the ports are tuned at different frequencies. They have a steep roll off above and below each port. The port frequencies overlap to boost the roll off of each so you end up with a domed response curve. Also the two ports are supposed to load the driver like a sealed box. When frequencies go below the low frequency port the high frequency port has reduced air flow because the amount of air being pushed makes it act like a straw. Bose acoustomas

[@albertbrooks2979]

So in a room that looks really small you have 2 Full Marty subs, the Devastator and something else I didn't catch. Since you claim the Devastator eats the Full Marty subs is there any point in having both? Besides the satisfaction of building them yourself. With the Devastator on its side so close to the wall and couch I'm willing to bet that the port is being preloaded because there isn't enough room to free flow before it hits the wall or back of the couch ( I could''t tell which way you had it facing.) Perhaps the Devastator in the front and one Marty firing upward behind the couch would provide enough fill. Looking forward to you moving things around and giving us a report and since you never seem to have any cars in your garage turning that into a proper sized HT room :) Lastly, do you have any real idea of how much power is being used for any of these subs at ...let's say THX reference volume of 115db?

[@JilesMcCoy]

Some quick answers: Picking between the deva and the Martys is the question of the day. I think it will come down to size. If you can fit 2 Devas.... then I would lean toward that right now. They arent much larger than the Full Martys but are much stronger. I cant fit 2 Devas.... but I could fit 2 micro Devas... Its facing the sofa to facilitate nearfield tactile response. Which it does well. It plays up into the low 130s... The garage is approximately the same size as the theater... so there would only be loss by trying that build. I am actually 100% satisfied with the bass in the room now. 1 Full, 1 Deva, and the sub35 is plenty of bass down to 15HZ or so. I will swap out the Full for 2 Cubes and run those 4 subs for a while. I have no idea how much juice they really use to get to 115 DB.... but its really not that much. Im not pushing my amps hard at all... 1 light. Although that is far from a scientific measurement. Thanks for watching! Are you thinking about a Deva?

[@albertbrooks2979]

@@JilesMcCoy I'm considering some options. I've been using a dual 18" IB for about 18 years now and I'm getting the itch to do something else. The 24" Stereo Integrity looks interesting too but is beyond my woodworking skills and tools to build a box for it. So what did you do with the other full Marty and what do you think the Sub 35 adds to the mix?

[@albertbrooks2979]

@@JilesMcCoy After my first reply I went looking for the micro Devastators that you mentioned and haven't frond a thing. Are you privy to a new model that hasn't been released?

[@JilesMcCoy]

Albert Brooks Eventually both my full Marty’s will be replaced with Marty cubes... just due to size. The Sub35 is great because I can place it where it helps overcome room modes. It’s like the glue that holds everything together for my room.

[@JilesMcCoy]

Albert Brooks You can find a ton about it in the diy section of avsforum.

[@brickstreetbakery]

i like this guy Seems like a mench if thats how ya spell it :)

[@JilesMcCoy]

Mensch? The Yiddish word?

[@royreddick2934]

Which are you talking about here? the band pass woofer box or the stupid movie?

[@JilesMcCoy]

What are you talking about here?

[@SUPERSTORYGOLD]

Fun playing and great video My friend, think of me ❤️ 🧡 💛 💚 💙 💜

[@JilesMcCoy]

Thanks! Glad you liked it!

[@jjdupz]

3 Videos and not a single note heard ... ?

[@JilesMcCoy]

Watch the video where it plays....

[@timhumphrey2030]

Im a power freak

[@JilesMcCoy]

Perfect sub for that!

[@motorlife5239]

Did you feel the heat of the amplifire if its too hot your putting stress on the amp and causing the amp to clip faster and faster then boom goes the dynomite your amp is gone if its getting hot check out the musysic amps like the musysic 3200w or the MU7K or the MU9K Amps that will give u the juice you need without overheating the amp you could run it bridged you could run the limiter to protect the amp from the clipping clipping an amp is like tossing a dynomite into the amp while it running clipping is a cancer for amplifires it kills amps trust me i whent through 3 1500w amplifires then i bought a Musysic 7000w professional power amplifire and it changed the whole game i am a Dj i run about 5,000- 6,000w through one sytem my amp it hold it like a champ without overheating id check out if your amp is overheating while watching a movie or listening to music i like your videos 👍👍👍👍 the one thing i see that looks really really cool is the whole setup i like your setup the wall mounted speakers mint👌 subwoofers mint👌 mids mint👌 highs mint 👌 your surround mint 👌your whole setup is👌 freakin mint👌 i like it

[@modernbassheads5051]

They are lying about the enclosure, there is no such thing as a 5th order horn loaded bandpass or whatever they call it lmao it’s a 6th order , very poorly designed and could be twice as loud if the ratio’s were designed correctly and the high tuned chamber was larger than the rear chamber

[@JilesMcCoy]

You can google the 5th order box to see more examples.

[@petersouthernboy6327]

For that room... what a distraction.

[@JilesMcCoy]

Peter Southern Boy What is a distraction?

[@petersouthernboy6327]

@@JilesMcCoy - ummm, a 21 inch woofer a couple feet from your head in a room too small for that driver. Also the words diversion or intrusion would work as well.

[@JilesMcCoy]

It actually works quite well. You don’t actually ever see the box during normal room use. And you tune the volume to be correct for the listening position. So the diameter of the speaker doesn’t matter from that point of view. The only real distraction I have now is a little reflection off the center channel. I’ll look to put some black material there to kill that. It would actually be fun to put up an AT screen and in-wall mount a center behind that. Maybe a future project!

[@dickfantastic7908]

@@petersouthernboy6327 According to Dr. Hsu, a man with at PHD in subwoofrology, you are incorrect Peter. What size subwoofer do I need? You cannot have too much subwoofer. A bigger subwoofer (from the same manufacturer) will always play lower, has lower distortion, more headroom, and better long term reliability if played at the same listening level www.hsuresearch.com/faq.html#1