Others prefer to put diffusers right behind them.
Acoustic treatment wall behind speakers.
After doing some research it looks like some are of the opinion that one must kill the first reflections by placing sound absorbers right behind the speakers.
As speaker wall distance increases treatment becomes less practical.
I m in the process of treating my listening room s acoustics.
Adding 1 or 2 inch thick foam is a waste.
To avoid this problem mount your acoustic panels flat on the walls and be sure to spread them evenly throughout the entire room.
Which is why the most popular diy method of recording vocals is to prop an old mattress against your wall so its directly behind the singers back as he performs.
It s clear there s a lot to think about.
In last week s hangout i was asked.
Again the gik guys can get you started.
The other reason for acoustic treatments of course is to tame bass nodes no mean feat.
Broadband bass traps would be better.
The area between the speakers and the front wall is the highest pressure area in the room.
At very close distances 4 inch thick absorptive acoustic panels behind the speakers may help tame the cancellation notch.
That s the area where you have the most low frequency problems.
Which approach is right.
This is a non environment ne type control room with flush mounted studio monitors and thick broadband absorption systems built into the sidewalls rear wall and ceiling.
I ve been a huge proponent of acoustic treatments and use them in my reference room too much success however it hasn t always been the case.
I m definately going to put diffusers 3 furutech panels on the wall behind the listening couch.
Yes the only treatment that s useful on the front wall in most rooms is thick bass traps.
Acoustic treatment in the walls of a purpose built recording studio control room.
Acoustic treatment on the other hand.
Front wall absorption ethan the acoustic treatment experts.
The effectiveness of absorption behind your speakers also depends on speaker directivity.
So in this example in which you have 1 front firing speaker two front stereo speakers left and right two speakers behind the listener also left and right and two speakers side to side left and right you re already up to 7 unique sound sources all firing across each other.