Subwoofer placement near the rear speaker? - AVS Forum
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post #1 of 16 Old 11-24-2014, 01:23 PM - Thread Starter
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Subwoofer placement near the rear speaker?

I have read that subwoofers can be placed anywhere in the room because human ears cannot easily localize low frequency sounds. Does that mean I can place the subwoofers near the rear speaker as well? Placing the subwoofer in the back is convenient to me because it is where my PC is placed. I am connecting 5.1 surround system to my PC and the cables (both input and output cables) will have to run double the length if I place the subwoofer near the front center speaker. However if placing subwoofer in the back affects the quality of the perceived sound too much then I am going to place it near the center speaker. I have to decide the locations before I fix shelves on the walls for placing the satellite speakers and the subwoofer. Please suggest.

Thanks in advance!
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post #2 of 16 Old 11-24-2014, 01:33 PM
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You want to do the subwoofer crawl to find the best spot(s). Google will come up with plenty of hits, here's but one: http://lifehacker.com/5751818/use-th...-speaker-setup

Being able to localize the subwoofer will also have to do with how it is setup (gain/volume, crossover, etc.).
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post #3 of 16 Old 11-24-2014, 01:34 PM
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Some more thoughts Subwoofer placement

"I realize that somebody playing free music isn't as commercial as a hamburger stand. But is it because you can eat a hamburger and hold it in your hand and you can't do that with music? Is it too free to control?" - Don Van Vliet (aka Captain Beefheart) discussing commercial success in the music biz


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post #4 of 16 Old 11-24-2014, 01:35 PM
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Bass below 80Hz is not localize-able, so as far that goes you should be fine with placing your sub in back.


But placing the sub back there may not result in the best overall output at the main listening position. And that's at least as important an issue to keep in mind.
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post #5 of 16 Old 11-24-2014, 02:38 PM
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My sub is a foot behind my recliner. No issues whatsoever.

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post #6 of 16 Old 11-24-2014, 03:35 PM
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Quote:
Originally Posted by Bill Fitzmaurice View Post
My sub is a foot behind my recliner. No issues whatsoever.
Bill, how does that "law" about places you want and sounding best go?
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"I realize that somebody playing free music isn't as commercial as a hamburger stand. But is it because you can eat a hamburger and hold it in your hand and you can't do that with music? Is it too free to control?" - Don Van Vliet (aka Captain Beefheart) discussing commercial success in the music biz


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post #7 of 16 Old 11-24-2014, 04:21 PM
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Quote:
Originally Posted by lovinthehd View Post
Bill, how does that "law" about places you want and sounding best go?
I was wondering the same thing...
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post #8 of 16 Old 11-24-2014, 05:32 PM
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Is it true that we cannot localize sound if the speaker/sub is placed directly behind us?
I've read that single rear surround (6.1 setup) is not ideal due to the placement directly behind us. If this is true, does that mean we can xo the rear sub to a higher frequency (perhaps 200Hz) or even place a center channel speaker behind us?
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post #9 of 16 Old 11-24-2014, 08:58 PM
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Quote:
Originally Posted by lovinthehd View Post
Bill, how does that "law" about places you want and sounding best go?
If it didn't work well where I have it then it wouldn't be there. But by and large placing the sub in the rear of the room works better than the front if you only have one.

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post #10 of 16 Old 11-24-2014, 09:24 PM
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Quote:
Originally Posted by Bill Fitzmaurice View Post
If it didn't work well where I have it then it wouldn't be there. But by and large placing the sub in the rear of the room works better than the front if you only have one.
Yeah and I was thinking of Hoffman's Iron Law....but think you've also posted a nice phrase about how where you want to put a sub is rarely the place that it will sound best....a Murphy's Law sort of thing.

"I realize that somebody playing free music isn't as commercial as a hamburger stand. But is it because you can eat a hamburger and hold it in your hand and you can't do that with music? Is it too free to control?" - Don Van Vliet (aka Captain Beefheart) discussing commercial success in the music biz


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post #11 of 16 Old Yesterday, 08:55 AM
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Quote:
Originally Posted by Skylinestar View Post
Is it true that we cannot localize sound if the speaker/sub is placed directly behind us?
I've read that single rear surround (6.1 setup) is not ideal due to the placement directly behind us. If this is true, does that mean we can xo the rear sub to a higher frequency (perhaps 200Hz) or even place a center channel speaker behind us?

Ummm...no.



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Originally Posted by eljaycanuck View Post
Bass below 80Hz is not localize-able, so as far that goes you should be fine with placing your sub in back.
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post #12 of 16 Old Yesterday, 11:43 AM
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Quote:
Originally Posted by lovinthehd View Post
but think you've also posted a nice phrase about how where you want to put a sub is rarely the place that it will sound best....a Murphy's Law sort of thing.
Most people are inclined to put subs in the front of the room, with the driver facing them. Why? Because that's how they've always seen it done. Most people who have dual subs put both of them in the front of the room, placed perfectly symmetrically. Why? Because it looks good. Both of those scenarios tend to be very poor placement options. The eyes should never determine where subs go, that's the job of the ears, but that's usually not how it works.

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post #13 of 16 Old Yesterday, 11:57 AM
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#1 RULE OF SUBWOOFER PLACEMENT:
The most aesthetically pleasing location will (almost) always be the worst location acoustically.
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post #14 of 16 Old Today, 10:11 AM
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"Murphy's Law of Sub Placement states that wherever subs look best or are most convenient is where they give the worst results."

"Subs need to go where they work the best, not where they look the best, or where it's most convenient to place them."


I think thats the quote you were looking for lovinthehd.
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post #15 of 16 Old Today, 10:27 AM
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Quote:
Originally Posted by Vacation
"Subs need to go where they work the best, not where they look the best, or where it's most convenient to place them."
And in the OP's case, the place where they work the best may not be near the rear speaker, and definitely not a foot behind Bill's recliner.
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post #16 of 16 Old Today, 11:53 AM
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Quote:
Originally Posted by eljaycanuck View Post
And in the OP's case, the place where they work the best may not be near the rear speaker
True.
Quote:
Placing the subwoofer in the back is convenient to me because it is where my PC is placed.
That may work fine, it may not. You have to do the subwoofer crawl to find out where the sub works best before deciding on placement. The fact that sub output is omni-directional and not locatable allows you to put it where it needs to be, but doesn't mean that where you want to put it is where it will work best.

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