If you are concerned with aesthetics and not scared of some basic math and geometry you might consider treating your room using the Sabine equation. The trend seems to be hanging panels on the wall which don’t actually address the problem frequencies. Many rooms can be fine in the upper frequencies that these panels treat if they are furnished with sofas and carpets, which many home theatres tend to be. By treating the fundamental problem frequencies you will improve your harmonics across the spectrum. Aim for about 500 milliseconds.
Feedback on Costco & Amazon sound absorption panels from folks who have purchased them.
Greetings. My wife & I have purchased a new home (to us) and I am extremely fortunate enough to be getting a 19 X 21 foot room for my stereo. The home is getting all new vinyl plank flooring throughout. This rooms floor will have a nice large area rug of some sort to help with sound control. My wife has been searching around for wall treatments and found the Artika panels at Costco and a plethora of choices on Amazon. Looking for input on users and if you are happy with your choices. I need to keep it aesthetically pleasing so no chunks of foam glued to the wall. System is: Krell FPB300cx amp, KCT pre and Infinity Renaissance 90 speakers for reference,
Thanks for any input to a regular guy that just happens to dig quality sound. -John