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Subwoofer placement

post #1 of 22
Thread Starter 
I had my woofer set up under my desk, probably about 6 inches behind the front of the desk and there was about a foot between the back of the woofer and the wall. It sounded perfect and I got a really nice bass sound from it.

I'm visiting my parents for Christmas and since I'll be here for a month I brought my entire setup with me. The woofer is still about 6 inches behind the front of the desk but there's about 3.5 feet between its back and the wall. The room here is also a lot larger. I was wondering if there is an ideal placement and if the distance from the wall greatly affects the sound, because as it is now, it sounds really weak and no where near as good as it was at my own place.

It's a 10" M-Audio BX10s (http://www.m-audio.com/products/en_us/BX10s.html) and I use my system mainly for audio production, I do watch a little TV but that's not important. Here's 2 photos, the first is from my place (where it sounds good), the second is from my parents' place (where it doesn't sound good):





Anyone have any ideas?
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post #2 of 22
Yes placement plays a huge role on how the sub will sound. For the best overall bass response put it in the corner. That way the bass has 2 surfaces to bounce off of. If the corner is unaccessible then try to put it up as close as possible to the wall, that will also improve the bass response.
But be warned, bass resonates through walls and you might drive people crazy if its up too loud
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post #3 of 22
Swap the PC tower with the sub, should help some.

"A corner placement gives lower distortion!

An interesting side effect of placing the subwoofer in a corner is that the distortion is lowered significantly. The cause for this is that you get a reinforcement of fundamental tones from all the reflections in phase from the adjacent surfaces, while harmonics (which is distortion when it comes to a steeply low pass filtered subwoofer) are lacking the corner support, and become weaker in amplitude compared to the wanted fundamentals. In addition, you also get increased efficiency which means that the input power to the subwoofer can be decreased, which also contributes to less distortion and increased headroom. There are many good reasons to consider a corner placement if you have only one subwoofer."


http://www.sonicdesign.se/subplace.html
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post #4 of 22
put the sub in the middle and use it as a warm place for your feets.
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post #5 of 22
Any where other than where you have it. I agree with swapping it with the comp case to get as close as possible to that wall.
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post #6 of 22
Thread Starter 
Thanks, I'll try swapping it with the tower and see how it sounds. I also have a LOT of acoustic foam just sitting in the garage, if I build a little "L" around it, would that help?
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post #7 of 22
i have a 12" klipsch 600w sub, and i have the port about 2" away from the corner in my office. u can hear that female dog from a block away...

if its a ported sub, just face the port towards the wall, put about 10-12" of space between it and go to town.
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post #8 of 22
BTW in the first pic how do you get into that room?
the door looks like it blocks it from opening all the way
    
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post #9 of 22
wow after seeing this thread i turned my port on my sub pointing into the corner and it sound sooo much better.
post #10 of 22
Lame. I had my old sub in the corner and it sounded so much better, but my Z-5500's sub is too directional. I can tell it's coming from a particular corner and it just throws everything off so I have it behind me.
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