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Putting subwoofer in furniture to save space
Putting subwoofer in furniture to save space
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Old 1st August 2020, 10:38 PM   #1
UncleJoe is offline UncleJoe  United States
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Default Putting subwoofer in furniture to save space

I'm interested in seeing what other people have done to incorporate subwoofers or large speakers into furniture for saving space. I just built my 1st enclosure yesterday for a 12" sub. Being a beginner, it's sealed and pretty big, 38 x 48 x 61cm to get a flatter response. The XED12V2 has Qts=0.55, and needs a 153 liter enclosure to get 0.707 Qtc. It sounds loud even with a small 100W TPA3116 amp.

Being a huge fan of making things multipurpose, it occurred to me I could've just bought and modified a storage cabinet, which would allow storage in addition to being a table.

I looked at the offerings on hidemysubwoofer.com but none of them allow storage. I'm trying to think what type of gasket you can use to seal the doors and what other issues you'll encounter.
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Last edited by UncleJoe; 2nd August 2020 at 01:23 AM.
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Old 2nd August 2020, 01:50 AM   #2
CharlieLaub is offline CharlieLaub  United States
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Going back over 10 years now and no longer in existence, I built a pair of subwoofers into the end cabinets in a row of IKEA cabinets and used the middle cabinet as a stereo rack for the gear. This worked pretty well actually and the volume for 12" subs was perfect. To make the cabinet into an enclosure I installed a panel behind the doors, used a spare shelf as the top panel, and then sealed up all the leak points. Pics attached.
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File Type: jpg IMG_0423.jpg (805.5 KB, 200 views)
File Type: jpg IMG_0428.jpg (726.2 KB, 199 views)
File Type: jpg pic 2.JPG (17.7 KB, 198 views)
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Old 3rd August 2020, 07:35 AM   #3
UncleJoe is offline UncleJoe  United States
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Nice, but I was hoping you didn't give up the storage. I guess with the ported tube, there isn't much room any ways. Did you have any resonance issues? I usually don't like particle board furniture, but for enclosures it has an advantage because it's more dense than solid wood.
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Old 3rd August 2020, 08:31 PM   #4
CharlieLaub is offline CharlieLaub  United States
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Nice, but I was hoping you didn't give up the storage. I guess with the ported tube, there isn't much room any ways. Did you have any resonance issues? I usually don't like particle board furniture, but for enclosures it has an advantage because it's more dense than solid wood.
The space was dedicated to the subwoofer(s)... you cannot fill up your speaker cabinet with stuff, eh?
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Old 4th August 2020, 09:32 AM   #5
Surtsey is offline Surtsey  United Kingdom
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Over the years I've put bass drivers in all kinds of furniture. The biggest problem is that things are going to rattle and stuff is going to move. I once incorporated a 12" subwoofer into a hi-fi rack, and had to secure the amp with double-sided tape.

My best result came when I put some thought into - pick a storage device that stores things can't move or rattle. The answer was an Ottoman.



Insert 2 x 8" downward facing drivers into floor. Separate into two equal chambers using 150mm riser as bracing. Secure new false floor above. Insert ports at both ends.

Truly multifunctional furniture: blanket box / bedroom seat / subwoofer.
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Old 4th August 2020, 09:57 PM   #6
bentoronto is offline bentoronto  Canada
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Putting subwoofer in furniture to save space
1. I built a three-duct labyrinth tight around a 15 inch driver in the base and going near to the ceiling. Hardly invisible but hardly takes much floor spare. Part of design was to put exit port as far from driver as I could. Goes to 12 Hz.

17 foot pipe sub 12-230 Hz 5dB

2. Boxes do not have to be sealed. Leaky boxes are abhorrent to the wannabee engineer but they are really quite a smart design. Conceptually, a labyrinth is to a TL as a leaky box is to a sealed box. You gotta start thinking of the rear wave more creatively than just the 5 official textbook models: sequestering it by any means is good even if not quite as good as a true horn.

3. I hid a large panel open baffle sub by attaching the baffle to the legs of a table. Those were the legs near the wall but far enough from the wall to make an OK acoustic path. The driver was mounted facing the wall (that is, under the table).

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Last edited by bentoronto; 4th August 2020 at 10:01 PM.
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Old 5th August 2020, 01:53 AM   #7
Pallas is offline Pallas  Pakistan
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If you want to make usable subwoofer furniture, a dual-opposed woofer configuration should be helpful. That was the shaking forces of the woofers cancel each other out.
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Old 5th August 2020, 06:36 AM   #8
GM is offline GM  United States
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Quote:
Originally Posted by UncleJoe View Post
I'm trying to think what type of gasket you can use to seal the doors........
Research NEMA 4x enclosure design, which must be vapor proof in potentially explosive areas of mines/whatever.

GM
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Old 5th August 2020, 06:46 AM   #9
GM is offline GM  United States
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Originally Posted by Pallas View Post
....a dual-opposed woofer configuration should be helpful.
Yep, one or more in each end of a sofa, coffee table/whatever wired in phase. Personally like DSL's THSpud to mount a sofa to, but can be other, simpler speaker alignments too: THSpud | Danley Sound Labs, Inc.

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Old 5th August 2020, 09:04 AM   #10
pelanj is online now pelanj  Czech Republic
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Putting subwoofer in furniture to save space
Post #2 looks almost exactly like something I need for my working room. With the exception that it would serve as a computer table as well. Thanks for the inspiration.
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