Cheap and Easy - Dual sealed Infinity 1262w's using DIYsoundgroup flat packs - AVS Forum | Home Theater Discussions And Reviews
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post #1 of 111 Old 02-25-2014, 09:18 AM - Thread Starter
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im going to be building a couple of these and thought I should do a thread on it. Im going to try and make this as simple as possible and also do a small review with some in room measurements. Thank you to Steve NN and LTD02 for helping me decide on what to do and what parts to use!!

Here is the parts list:


Drivers - Infinity Reference 1262w http://www.amazon.com/Infinity-Reference-1262w-1200-Watt-High-Performance/dp/B0028AYIXK/ref=sr_1_1?ie=UTF8&qid=1393413418&sr=8-1&keywords=1262w

Amp - Behringer NU1000DSP iNUKE http://www.parts-express.com/behringer-nu1000dsp-inuke-1000-watt-power-amplifier-with-dsp--248-6702

Boxes - DIYsoundgroup 1.5cft. flatpacks with Dayton RS 12" cutout http://www.diysoundgroup.com/subwoofer-flatpacks-2/sealed-subwoofer-flatpacks/1-5-sub-flat-pack.html

screws - #6 x 1" Deep Thread Pan Screws http://www.parts-express.com/6-x-1-deep-thread-pan-head-screws-black-100-pcs--081-440

Neutrik connectors (love these things) - https://www.parts-express.com/neutrik-nl4fx-speakon-spx-cable-connector-4p--092-190

Terminal cups (I will use all Neutrik's next time) - https://www.parts-express.com/square-speaker-terminal-cup-4-gold-banana-binding-post--260-284

Stuffing - Wally Mart polyester pillows . one to two each sub.

Finish - Duratex http://store.acrytech.com/Speaker-Cabinet-Coating-DuraTex-Roller-Grade-Black.html

Misc. - gasket tape - http://www.parts-express.com/speaker-gasketing-tape-1-8-x-1-2-x-50-ft-roll--260-542

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post #2 of 111 Old 02-25-2014, 09:20 AM - Thread Starter
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i got started on these a while ago. i assembled the flat packs in less than an hour total with just Tightbond II and a brad nailer.








i patched them up with drywall mud and then i decided to do a 1/2" roundover on all the edges






This driver is pretty impressive for $62 delivered





WARNING!!!!!!!!!!!!

These flat packs were ordered with the cut out for the Dayton RS 12" driver. I read in the reviews that this Infinity fit perfect. Well, it fits too prefect and got stuck when i test fit it. eek.gif

This resulted in having to damage the box a little bit to get it out. Then i fixed the box with some Tightbond mixed with MDF dust and sanded it smooth. I would recommend either contacting Erich and asking if he could do a custom baffle or routing the opening out another 1/4" or so at least. If your ok with them being that tight then dont put them in until you are totally done and wont need them out again





I love Duratex. It only takes about an hour under normal conditions to be ready to recoat. I get a good amount on the roller, stuff it into a freezer bag, and tie it closed between coats. i didnt even have to use a roller pan. I just rolled right out of the bucket.




Duratex is done. i set them in their planned positions for now and ran all the wires. im still waiting on the terminal cups.










As for how i have these wired. I have the iNuke on a shelf in the basement. I didnt want to deal with the noise. My AVR does not have a 12V trigger so i used something called a power bridge to run the AVR power cable downstairs.

http://www.amazon.com/gp/product/B00GWGZKF6/ref=oh_details_o03_s00_i00?ie=UTF8&psc=1



then it plugs into whats called a Smart Strip. The iNuke and a ART Clean Box Pro is also plugged into the Smart Strip. They both turn on whenever i turn on the AVR.

http://www.amazon.com/Smart-Energy-Saving-Autoswitching-Technology/dp/B000P1QJXQ/ref=sr_1_3?ie=UTF8&qid=1394476865&sr=8-3&keywords=smart+strip
its phillip, kevings and mtbdudex like this.

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post #3 of 111 Old 02-25-2014, 09:20 AM - Thread Starter
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reserved for review/measurements

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post #4 of 111 Old 03-03-2014, 09:58 AM - Thread Starter
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i think i will use these terminal cups. this way ill be able to get something in from the back side to push the driver out should i ever need to remove it.

http://www.parts-express.com/square-speaker-terminal-cup-4-gold-banana-binding-post--260-284

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post #5 of 111 Old 03-03-2014, 10:11 AM
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Is there really any reason to take them out except to replace them?

Be sure to run some tape inside the woofer cut out or the duratex will make the opening even smaller. Maybe hit it with black spray paint to make sure there is no bare MDF to see.
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post #6 of 111 Old 03-03-2014, 10:17 AM - Thread Starter
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Quote:
Originally Posted by mobeer4don View Post

Is there really any reason to take them out except to replace them?

Be sure to run some tape inside the woofer cut out or the duratex will make the opening even smaller. Maybe hit it with black spray paint to make sure there is no bare MDF to see.

um. not really. damaged driver? add or take out stuffing? put totally different driver in?

i will hit the opening with black spray paint and tape it off for sure. thanks

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post #7 of 111 Old 03-03-2014, 11:09 AM
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Quote:
Originally Posted by brian6751 View Post

i think i will use these terminal cups. this way ill be able to get something in from the back side to push the driver out should i ever need to remove it.

http://www.parts-express.com/square-speaker-terminal-cup-4-gold-banana-binding-post--260-284

I bought these and love them. They have a soft foam gasket on the back. Warning, the gasket gets a little sticky when you put it so with this make sure you are ready to put it in permanently. biggrin.gif
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post #8 of 111 Old 03-03-2014, 04:04 PM
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Sweet build brian, looking good. Looking forward to what you think!

Klipsch RB-75
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post #9 of 111 Old 03-03-2014, 07:09 PM
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Nice build. You should be happy. These drivers are a great value.
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post #10 of 111 Old 03-03-2014, 09:25 PM
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Looking great! Do you have something to compare them to when they are up and running? No doubt they will sound great and looking forward to your opinion. Just wondering how they sound compared to a store bought or other home build.

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post #11 of 111 Old 03-04-2014, 03:39 AM - Thread Starter
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I don't have anything here anymore to directly compare them to, but I've had a few other DIY and ID subs. I'll do my best to give a subjective opinion based on my experience with the other subs in addition to the measurements.

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post #12 of 111 Old 03-04-2014, 12:08 PM
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Quote:
Originally Posted by brian6751 View Post

I don't have anything here anymore to directly compare them to, but I've had a few other DIY and ID subs. I'll do my best to give a subjective opinion based on my experience with the other subs in addition to the measurements.

Can you give a quick opinion? I need to order something soon and this was one option.
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post #13 of 111 Old 03-04-2014, 12:16 PM
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great photos brian. Subs are looking good too. Im looking forward to seeing the cabinets once you get them finished.

coincidentally, i have the same sub in my jeep wrangler ( avatar photo ) , and it hits very nicely : )
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post #14 of 111 Old 03-04-2014, 12:25 PM
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great to see your thread!

and...good info about the 'fit'. :-)
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Listen. It's All Good.
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post #15 of 111 Old 03-04-2014, 01:02 PM - Thread Starter
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Quote:
Originally Posted by DustinF View Post

Can you give a quick opinion? I need to order something soon and this was one option.


these wont be done and set up till at least Monday, but i will post some first impressions if i get them up and running

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post #16 of 111 Old 03-04-2014, 02:04 PM
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Would you care to comment on why you went this direction, considering the impressive DIY gear you've had in the last year or 2? WAF? space? If it's none of my business, that's fine too and I apologize.
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post #17 of 111 Old 03-04-2014, 03:58 PM - Thread Starter
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Would you care to comment on why you went this direction, considering the impressive DIY gear you've had in the last year or 2? WAF? space? If it's none of my business, that's fine too and I apologize.

We moved recently and I do not have a dedicated space for big subs.....yet smile.gif

These are going in our great room that has a pretty modest setup. Pioneer Andrew Jones up front. Polk monitor 30's for surrounds.

I wanted at east two subs but I don't want to spend much in this room. And they have to be small. So that's the motivation here.

As soon as I get permission to start on the basement I'll be going big again. I promise.

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post #18 of 111 Old 03-04-2014, 06:37 PM
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Makes sense. I thought I had read you were moving. I just couldn't figure out why you were devolving from awesome...
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post #19 of 111 Old 03-04-2014, 06:49 PM
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So slightly north of 500$ for 2 subs inkluding amp and finish. Not bad cool.gif
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post #20 of 111 Old 03-05-2014, 06:11 AM - Thread Starter
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So slightly north of 500$ for 2 subs inkluding amp and finish. Not bad cool.gif

And don't forget DSP as well!
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post #21 of 111 Old 03-05-2014, 06:13 AM - Thread Starter
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So slightly north of 500$ for 2 subs inkluding amp and finish. Not bad cool.gif

The only thing I miss from the old house is my theater but I have a clean slate in this one with nothing in the way of design

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post #22 of 111 Old 03-05-2014, 07:13 AM
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What have been some of your older builds? Do you have a thread about your theater?
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post #23 of 111 Old 03-05-2014, 08:24 AM - Thread Starter
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i didnt do a thread for my theater. it wasnt totally dedicated. it was more like a basement media area. you can see some pics on page two of the Grizzlies thread.


"The Grizzlies" Twin Dual Opposed Stereo Integrity HT18 Subwoofers
https://www.avsforum.com/t/1446012/the-grizzlies-twin-dual-opposed-stereo-integrity-ht18-subwoofers/0_100


Dual THTLP Architectural series
https://www.avsforum.com/t/1438536/dual-thtlp-architectural-series/0_100#post_22584862

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post #24 of 111 Old 03-05-2014, 03:31 PM
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We moved recently and I do not have a dedicated space for big subs.....yet smile.gif

These are going in our great room that has a pretty modest setup. Pioneer Andrew Jones up front. Polk monitor 30's for surrounds.

I wanted at east two subs but I don't want to spend much in this room. And they have to be small. So that's the motivation here.

As soon as I get permission to start on the basement I'll be going big again. I promise.

So if you had no space constraints and roughly the same budget (maybe w/ a $750 max) what would you build? I have a dedicated theater room w/ plenty of space for Subs, but I am limited for the time being on funds.

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post #25 of 111 Old 03-05-2014, 03:39 PM - Thread Starter
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Same everything just ported instead of sealed like LTD02 and Steve nn recommend in my old thread

https://www.avsforum.com/t/1518919/help-me-build-two-subs-around-my-spare-behringer-epq1200-amp-please/30#post_24402064

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post #26 of 111 Old 03-10-2014, 11:49 AM - Thread Starter
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more updates to post #2 . Just waiting on the terminal cups and i can gets these little guys fired up.

This is my first time using Neutrik connectors. i was a little worried about using these but now they will be my go to connector for everything. They are awesome and so easy.

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post #27 of 111 Old 03-10-2014, 01:27 PM
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duratex came out great....nice job!

also, that's a good looking room..i like how the ht elements are integrated but yet dont dominate the room. overall, it looks like a great place to watch a flick with friends and family. : )
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post #28 of 111 Old 03-10-2014, 04:37 PM - Thread Starter
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Thank you. It is hard to have good AV and not have it stick out. I'm shocked the wife didn't mind the monitor 35's for surrounds. That's another reason I'm using these small subs. I hope to maybe add two more if these turn out good.

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post #29 of 111 Old 03-13-2014, 08:39 AM - Thread Starter
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here are my first in room measurements.

aqua is no eq

red is with a 6db boost at 25Hz. Q of 5

green is with a 9db boost at 24Hz. Q of 3


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post #30 of 111 Old 03-13-2014, 09:28 AM - Thread Starter
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heres where im at with some filters applied


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