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The wall behind me.

Hi

In my listning room wich is 420 cm * 380 cm.
I have a sofa on/against the wide side where my listning possition is.

On the opposit wide wall my sonus faber cremonas are placed.

Now the wall behind me is not covered by enything yet so its bare.

I have tried to hang a carpet there with audible improvments.

Now my qustina is when I look for acoustic panels for the wall behind me should I look for abersoberation og difussion panels or a mix of both ?

regards
tda2200
newbee
4,767 posts
 
Tda2200 - Deadening equals absorbsion, much as described by Kr4. There are many materiels you can use to do this and a few have already been suggested. In one home I deadened a wall by putting up foam on the wall and simulated a large glass window covered with drapes to hide it. The only way the wife would approve of audiophile wall materiels. :-)
sns
3,265 posts
 
My experience suggests using a combo of absorption and diffusion. All absorption could makes things too dead and all diffusion could makes things too lively, you will have to experiment. I have used various combinations of echobusters, doublebusters and RPG Skylines.
tda2200 OP
151 posts
 
Hi all

Thanks for the inputs

I have found somthing called troldfon from a dansih company called lhammerich that spicilizes in big time acoustic tratments for all kind of purposes.

The troldfon plats are both difussers and absorbsion and should work just as good or better then many expensiv alternativs.

But its pretty cheap i will buy plenty because i could use it sparly on other areas if needed and it looks very nice also.

thanks for the help guys

regards
montytx
138 posts
 
I would think that if your listening chair is really close to the rear wall then you would want to deaden it, absorb as much as possible to help reduce the increased bass response. However, in general, a combination of defraction and absorption is usually the ideal.

Hiya Kal.
unsound
7,329 posts
 
The late great John Dunlavy who is widely credited with making some the most accurate loudspeakers, suggested just such an arrangement. Mr. Dunlavy also suggested to me that a 4 foot X 6 foot piece of 4 inch sound absorbing polyester foam covered in thick high quality wool, placed directly behind the listner would be most beneficial.
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