Question: Sound Treatment behind the Listener?

With approximately 8' behind you to the wall, the sound level is only attenuating 3.52dB, plus whatever the absorption coefficient of the building materials (ie CD cases are which is probably very low), and another 3.52dB attenuation on the reflection. I do not believe that is near enough. I would be shooting for no less than 10dB if not 15dB. The only options are increasing the distance (which is probably not an option), or adding sound absorption material0, which can achieve that.

@ozzy I'd be curious to hear what GIK says. That's a great service they provide - it was somewhat of an education to me in terms of the information they provided (and why). 

The best situation is to have no wall behind the listener. An open concept situation open to the rest of the house. The rear is then open between various rooms. This keeps reflections as late as possible and fractured as much as possible. 

Greetings 

I have open book shelves on my back wall. They hold my technical books and years worth of audio magazines. Also a few diffuser/absorption panels and record cabinets.This has worked very well for me. I will add 2 bass tube traps soon. At the moment I prefer diffusion on my back wall. I’m 99% done with my room, not sure when I’ll get to the last 1%.

My head is 6 feet from back wall.

Maybe repositioning your CD’s in a random pattern might help? 6000 CD’s my goodness. Good for you.

Joe Nies

Christian5s4,

How many of the GIK 6A Alpha diffusor/absorbers did you use?

I haven’t heard back from GIK yet, but Stillpoint’s says behind the listener treatment is not really necessary.

joenies,

BTW, the cd rack has many spots where there are few/none cd’s which creates alot of voids etc., in a random manner.

ozzy