Thanks for "piping" up, David! - Dan_ed - Room Acoustics Forum by Rives Audio

Room Acoustics Forum by Rives Audio

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Thanks for "piping" up, David!

In Reply to: Re: Thanks, bartc! This makes perfect sense. posted by David Aiken on May 30, 2005 at 14:20:36:

We actually conversed about a year ago concerning speaker placement in my room. You were very helpful then, so thanks again for that.
I am flipped from your seating position in the stem and also confine my listening area to the foot of the L. So my speakers are even with the start of the toe, which is about 6 1/2' long, and firing towards the ankle. The are set about 8' apart and I have just moved my listening postion back another foot to clear a bass hump at 80Hz. I'm now 9' from the face of the speakers and 4' from the back wall. The foot is 20' long and 14' wide with wreched drop ceiling just a smidge under 8' high. Given this arrangment the left speaker virtually sees no side reflection point. (I know there is one but it is about 16' away. The right speaker is 3' in from the wall, or sole of the foot. For symmetry I have placed two, 48" x 30" absorption panels on the right wall centered around the first reflection point. This is working very well as I get a well centered soundstage with no tweaking of the balance controls. The floor is berber over concrete. It has occured to me that I still need to treat the reflective points on the ceiling. Dreaded pressed fiber panels have got to go!
My speakers are Aerial 10t's and I don't dare move them toward the front wall as it has taken me alot of positioning to tame the bass in the room. There is already a significant bass bloom along the front wall, I have placed 4 round DIY bass traps along the front wall, 2-16" traps at the first reflective point on the front wall and 2-12" traps in each corner. These are stacked units. Bottom traps are 3' and the upper traps are 4'.
So, back to the lenses. As I said before, they do make a difference especially in the space behind the speakers. I have tried them for quite a while in the standard position outboard of the speakers but this never really made much difference no matter how much I moved them around. That seems to verify the theory of how they work. I'm currently experimenting with two of them behind the speakers and in line with the wave from the reflection points off the front wall. I have also experimented with pipes behind and to either side of the listening position with some good results, but my new position may be too far back to take advantage of that placement.

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Follow Ups Full Thread

Topic - Room lense placement - Dan_ed 06:51:31 05/30/05 (11)

David's advice - bartc 17:35:41 05/30/05 (5)

Re: David's advice - Dan_ed 09:51:24 05/31/05 (4)

Re: David's advice - David Aiken 20:05:24 05/31/05 (1)

I'm probably making a bigger deal out of it than it really is. - Dan_ed 08:33:14 06/01/05 (0)

Further ideas - bartc 17:14:05 05/31/05 (1)

Nice thing is - Dan_ed 08:53:49 06/01/05 (0)

I'm going to simplify here - bartc 07:53:53 05/30/05 (4)

Thanks, bartc! This makes perfect sense. - Dan_ed 09:16:19 05/30/05 (3)

Re: Thanks, bartc! This makes perfect sense. - David Aiken 14:20:36 05/30/05 (2)

Thanks for "piping" up, David! - Dan_ed 15:50:48 05/30/05 (1)

Re: Thanks for "piping" up, David! - David Aiken 23:18:25 05/30/05 (0)

Follow Ups

Thanks for "piping" up, David! - Dan_ed 15:50:48 05/30/05 (1)

Re: Thanks for "piping" up, David! - David Aiken 23:18:25 05/30/05 (0)

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