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-   -   This is going to destroy my house... (https://www.avsforum.com/forum/155-diy-speakers-subs/2393202-going-destroy-my-house.html)

uniquepattern 04-07-2016 05:50 AM

This is going to destroy my house... 24" Subwoofers!
 
Well, after a lot of research, I finally took the plunge into DIY...

I figured I would go big, why not right?

So I got ahold of Nick @ StereoIntegrity
After a month or two of email discussions with Nick (a very cool guy btw) we came up with a plan, and I ordered a pair of HS-24 D2 Subwoofers! :eek:


My theatre isnt too big, 12x14x8; I figure these monsters will probably destroy my house...



The plan is to put them into 14ft^3 sealed enclosures featuring triple baffles and lots of bracing!

Im going to use Crown XLS2502 amps, one bridged per driver... Wiring is 10awg Kord from KnuKonceptz
Antimode 2.0 DualCore is providing the Eq...

External measurments are 33"x30"x30.75"

Other equipment:
Pioneer SC-1528-K
Samsung f5900
PS4
Xbox1
Polk Speakers ( L/R RTia9, C CSiA6, Sur RTiA7, F/H RTiA3)


This should be fun!

uniquepattern 04-07-2016 05:50 AM

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Ill add pictures tonite when I get home of the progress so far...

The enclosures are preped, ready to paint!

I should have the paint complete this weekend.

Im going to do a Satin Black Hammered Finish.


edit: No Im not, the epoxy is way to expensive!

so Satin Black Lacquer it is!

GreySkies 04-07-2016 06:14 AM

Quote:

Originally Posted by uniquepattern (Post 43051218)
My theatre isnt too big, 12x14x8; I figure these monsters will probably destroy my house...

Oh heck yeah!

My theater is a little bigger, at 12' 2" x 16' 6" x 8' 7", with a partially decoupled ceiling. I built a pair of sealed 6 ft³ 15" subs. It's below our kitchen. With only 250 watts powering 'em, my wife said Godzilla made her bounce across the floor, and had everything shaking. This was me --> :D

BTW, I realize that's one white chip compared to many in this sub-forum.

Those should be epic in that space.

AudyoVidyo 04-07-2016 06:59 AM

Quote:

Originally Posted by uniquepattern (Post 43051218)
Well, after a lot of research, I finally took the plunge into DIY...

I figured I would go big, why not right?

So I got ahold of Nick @ StereoIntegrity
After a month or two of email discussions with Nick (a very cool guy btw) we came up with a plan, and I ordered a pair of HS-24 D2 Subwoofers! :eek:


My theatre isnt too big, 12x14x8; I figure these monsters will probably destroy my house...



The plan is to put them into 14ft^3 sealed enclosures featuring triple baffles and lots of bracing!

Im going to use Crown XLS2502 amps, one bridged per driver... Wiring is 8awg Kord from KnuKonceptz
Antimode 2.0 DualCore is providing the Eq...

External measurments are 33"x30"x30.75"

Sounds epic! Can't wait to see the build!

jwanck11 04-07-2016 07:05 AM

It will be interesting to get your impression on the actual balance of your gear.

lz7j 04-07-2016 07:44 AM

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You don't have to worry about your house, there's a fellow with 4 x Labhorns and 8 x HS24's in a 2900ft^3 room who should: 2 x 24" in 47ft^3 sealed or ported configurable enclosures and each driver is being fed with 4,700wrms: http://data-bass.ipbhost.com/index.p...8-hs24/page-13

Your only concern should be your mains, I doubt they'll be able to keep up with the beastly 24's!

uniquepattern 04-07-2016 08:00 AM

@lz7j Hummmm.... I did wonder about my mains being able to keep up....

Would it be due to the RTiA9's themselves or lack of power from the AVR?

Im up for adding a dedicated amp...

lz7j 04-07-2016 08:57 AM

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Quote:

Originally Posted by uniquepattern (Post 43053938)
@lz7j Hummmm.... I did wonder about my mains being able to keep up....

Would it be due to the RTiA9's themselves or lack of power from the AVR?

Im up for adding a dedicated amp...

You will need to measure them and analyze the compression/distortion at reference volume. My experience with the Rti A7's and dome tweeters with the smaller woofers in general, is while they sounded good at moderate volumes, they weren't able to keep up with higher SPL's. To fully realize the potential of the 24's in your room, you'll probably need to run them +15db hot compared to your mains.

uniquepattern 04-07-2016 08:59 AM

Ahh, right on.....


No worries then, I can hit well above reference with my RTiA9's in my room... (benefit of a smaller space I guess)
My buddy brought over his mic and REW a few months back when I did the acoustic treatment install....

I do plan to run the subs hot! :)

beastaudio 04-07-2016 11:49 AM

With a 24" sub, I would hope you would want to run it a little hot :D

uniquepattern 04-07-2016 11:50 AM

Quote:

Originally Posted by beastaudio (Post 43061810)
With a 24" sub, I would hope you would want to run it a little hot :D

Oh hell yeah!

And with Two Subs....a little over boiling... he he he

uniquepattern 04-08-2016 12:49 PM

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uniquepattern 04-08-2016 12:51 PM

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uniquepattern 04-08-2016 12:51 PM

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uniquepattern 04-08-2016 12:52 PM

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These crazy things are trying to eat my old subwoofers! ! !

https://www.avsforum.com/forum/attach...1&d=1460401377

Thats a Polk PSW125 12" Subwoofer.... (or at least it was)

uniquepattern 04-08-2016 12:53 PM

More to come as things progress! :)

lz7j 04-08-2016 01:08 PM

130 Attachment(s)
Dude, you need more front to back bracing.

beastaudio 04-08-2016 01:35 PM

Quote:

Originally Posted by uniquepattern (Post 43094010)
Moving right along....

There is a pop can for scale....


For those of you reading that are from the southern part of the US, that's a soda can he is talking about :D

Just kidding....but I do agree with the PP, you definitely need some more front to back bracing. Triple front baffle definitely helps tremendously, but at least 4 braces running from right inside the woofer cutout to the rear of the box would be highly suggested.

uniquepattern 04-08-2016 01:41 PM

Sounds good! More bracing it is!

Thanks for the help, I really appreciate it!

ambesolman 04-08-2016 03:09 PM

Quote:

Originally Posted by beastaudio (Post 43095378)
For those of you reading that are from the southern part of the US, that's a soda can he is talking about :D



I know you meant a Coke can. We'll let it slide just this once[emoji6]

uniquepattern 04-09-2016 04:59 AM

Alright, I cut out a couple of 3" wide rings out of 3/4" MDF the diameter of the inner mounting ring and glued those into place. Had to make them 2 half circles to get them in!

I then ran 8 braces from the new ring braces on the inside of the baffle to the rear panel of the box.... Ill snap some pics when I get the army of clamps outta the way!


This is going to delay the paint a little...

NWCgrad 04-09-2016 06:50 AM

Those are some big a$$ enclosures. When adding the front to back bracing it's nice to put them directly behind 4 of the attachment points on the driver. Can really get a secure driver mount by using long screws that go into the bracing (If your using t-nuts, not applicable).

Will be pretty potent system. Add a L/T and ready to rock the foundation and crack some tile.

sandydankness 04-09-2016 07:48 AM

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For my friends sealed enclosure and mine as well I ran 4 braces frong to back behind screws. It's's really nice to seat the drivers and know you have solid lumber there.

ceptorman 04-09-2016 07:51 AM

Cool build thread. I liked the sub eating a sub pic!

uniquepattern 04-10-2016 03:36 AM

Holy crap, I just heard back from my supplier (yes, at 5am on a Sunday- dude is a good resource for finishing products, and it helps that my company spends north of 7 figures/yr with him) and that hammered epoxy is freaking expensive!

I could wrap these subs in Cocobolo veneer for the same cost!

Now what to do? Part of me just wants to go simple, and just get out the lacquer n spray er down in satin?!
Maybe chemically etch it afterwards? I can do some wicked things with lacquer...

brian6751 04-10-2016 07:03 AM

Duratex?

ambesolman 04-10-2016 08:42 AM

Durex?


Sent using Tapatalk since the mobile version is still [emoji107]

Face2 04-10-2016 09:12 AM

Veneer or Duratex.

uniquepattern 04-11-2016 06:17 AM

Duratex isnt a bad idea, but Ive never worked with it before...

Ive sprayed lacquer for years..

I ended up picking up some high build lacquer, Ill thin it out to a satin sheen and go from there...

Sometimes simple is the best answer... :)

imrf 04-11-2016 06:21 AM

Quote:

Originally Posted by uniquepattern (Post 43157458)

Sometimes simple is the best answer... :)


Very true. Duratex is about as simply me as it gets. If done lightly it doesn't look like you just got off the tour bus. It's so easy to put on and dries pretty quickly. I'll definitely use it again.


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