However, I am not one of those people who believe that room treatment will cure the effects of a system built around crap electronics and poorly designed loudspeakers.
Scotty
Those who respectfully disagree with this opinion can still talk to the hand. 🖐️😔
+1 : me too. All room effective room treatment will do s expose crappy gear faster than a normal room environment. Crap sounds crappier...
With an optimized to the owner system, room treatment is the last and most important interconnect in a typical system. It doesn't take a lot of work to make many rooms MUCH better acoustically and conversely there are rooms that will NEVER sound as good as a room with better dimensions and/or configuration. Like Scotty said: It's all physics and math. To top this, the physocs and math are very simple and there are many valid room analysis software programs available as well as some good "Do this, don't do that" sources all over the internet. The Linkwitz link provided earlier is great. Here are a few other resources for many things audio:
George Cardas' site :http://www.cardas.com/room_setup_main.php
http://www.mh-audio.nl/Acoustic.htmlhttps://users.aalto.fi/~ktlokki/Publs/mst_laukkanen.pdf - An interesting dissertation on acoustics with many pearls of wisdom for those than can slog through trough all of those words!
Bottom line is that the speakers sound the best in their unique position in your unique room. There are rules of thumb, but those are often amendable for the speaker/room combo.
Greg Rae sells diffusers that I designed back in 1992. They have many imitators and high priced alternatives. Don't buy from Greg? Buy from GIK... (great sales job, huh
) Bottom line is that a few intelligently placed absorber/diffusers/room redirection devices can turn a so-so room into a very good listening environment