Just moved into a new place, and have my stereo system set up in the loft. I have put three 4'x2'x4" ROCKWOOL in the rectangle space behind speakers, as well as applied DIRAC DRC, to reduce the standing wave. They do improve the sound quality by killing the spike around 80 and 200 Hz.
One remaining issue is about the echo. In current listening space, the RT60 Topt @200 Hz is ~500ms, and it is rising with frequency to ~ 800ms. In my previous listening room the RT60 Topt was ~350ms @ frequency >200 Hz, so I am totally unsatisfied with the clarity of sound. I am planing to apply my remaining 7 pieces of Auralex 2"x12"x12" studiofoam, and also to have more room treatment, in order to reduce the echo. But I have no idea where / which (absorption or diffusion) would be more effective. I would like to seek for any thoughts and advice. Thanks a lot!
I am also attaching the RT60, some pics of the listening space, and the REW measurement.
One remaining issue is about the echo. In current listening space, the RT60 Topt @200 Hz is ~500ms, and it is rising with frequency to ~ 800ms. In my previous listening room the RT60 Topt was ~350ms @ frequency >200 Hz, so I am totally unsatisfied with the clarity of sound. I am planing to apply my remaining 7 pieces of Auralex 2"x12"x12" studiofoam, and also to have more room treatment, in order to reduce the echo. But I have no idea where / which (absorption or diffusion) would be more effective. I would like to seek for any thoughts and advice. Thanks a lot!
I am also attaching the RT60, some pics of the listening space, and the REW measurement.