speakers near the rear wall

sprinter · 27th February 2011, 11:15 PM

I know you're not supposed to place speakers near the rear wall, but if you have no choice, is there any way to mitigate the consequences? I'm thinking of absorbing panels of some kind; something that wouldn't look too bad unless there are other options. My problem is especially bad because they will be open baffle. And yes, cost is a factor.

CLS · 28th February 2011, 12:58 AM

What 'consequences' ? What do you get ?

aptquark · 28th February 2011, 01:11 AM

Quote:

Originally Posted by sprinter

I know you're not supposed to place speakers near the rear wall, but if you have no choice, is there any way to mitigate the consequences? I'm thinking of absorbing panels of some kind; something that wouldn't look too bad unless there are other options. My problem is especially bad because they will be open baffle. And yes, cost is a factor.

In many situations, having them close to the wall can be a good thing. But it depends on the room.

tinitus · 28th February 2011, 01:37 AM

Quote:

Originally Posted by sprinter

My problem is especially bad because they will be open baffle.

not optimal, but might work ok
I did that for a few years
but no closer than 1-2 feet(50cm) to back wall

hell, you could try to lean the baffle up against the wall
even that may work, maybe even better

head_unit · 28th February 2011, 01:45 AM

Conventional speakers away from the wall may sound less boomy. But it's not just the rear wall, it's all. Try to get different distance to rear wall, floor, ceiling, and to the side walls, and to the other speaker. That keep resonances from reinforcing each other.

Now, open baffle is a different story. But I think you are contradicting your own aims. Open baffle is usually trying to get an "open" planar-like sound...but part of that whole deal is NOT being near walls which will make reflections close on the heels of the frontward radiation. You could put absorbent material all over the wall behind them, but it will only work from the midrange up (IF you buy GOOD material) and it really kind of defeats the purpose of having an open baffle speaker at that point. If you're absorbing the rear wave, you might as well have an enclosure, eh?

sprinter · 28th February 2011, 02:28 AM

Okay, I guess I get the idea. Maybe I'll have to rearrange the whole situation because I do want to try OB's.

Do you think that sweeping the room with REW and an appropriate DSP EQ would help a situation like that?

27th February 2011, 11:15 PM	#1
sprinter diyAudio Member Join Date: Feb 2011 Location: Seattle	speakers near the rear wall I know you're not supposed to place speakers near the rear wall, but if you have no choice, is there any way to mitigate the consequences? I'm thinking of absorbing panels of some kind; something that wouldn't look too bad unless there are other options. My problem is especially bad because they will be open baffle. And yes, cost is a factor.

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28th February 2011, 12:58 AM	#2
CLS diyAudio Member Join Date: Jun 2005 Location: Taiwan	What 'consequences' ? What do you get ?

28th February 2011, 01:45 AM	#5
head_unit diyAudio Member Join Date: Feb 2004 Location: Los Angeles	Conventional speakers away from the wall may sound less boomy. But it's not just the rear wall, it's all. Try to get different distance to rear wall, floor, ceiling, and to the side walls, and to the other speaker. That keep resonances from reinforcing each other. Now, open baffle is a different story. But I think you are contradicting your own aims. Open baffle is usually trying to get an "open" planar-like sound...but part of that whole deal is NOT being near walls which will make reflections close on the heels of the frontward radiation. You could put absorbent material all over the wall behind them, but it will only work from the midrange up (IF you buy GOOD material) and it really kind of defeats the purpose of having an open baffle speaker at that point. If you're absorbing the rear wave, you might as well have an enclosure, eh?

28th February 2011, 02:28 AM	#6
sprinter diyAudio Member Join Date: Feb 2011 Location: Seattle	Okay, I guess I get the idea. Maybe I'll have to rearrange the whole situation because I do want to try OB's. Do you think that sweeping the room with REW and an appropriate DSP EQ would help a situation like that?

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