Thanks, Jonathan. When I originally purchased these absorbers my speakers were really close to the wall, maybe 3 feet. Now, over the last year I've creeped them out another foot or so. I need to have someone come in and tune my room properly. Room acoustics is one thing I've never really had a grasp on. I plan on holding on to this setup for awhile, so I would like to get the room tuned correctly(WAF taken into consideration, of course)Cool looking little blocks.
But I would be remiss if I did not point out the open cell foam placed directly on the wall only absorbs high frequencies.
Electrostats benefit from absorbers that are effective down to 250Hz (or lower, but those would be huge), which is why the typical absorber to use is something along the specs of a RealTraps MiniTraps HF (HF = High-frequency, it does not have a 'limp mass' element that could reflect HF) — and spaced by two or three inches from the wall for best lower-frequency absorption.
By going lower, you can mitigate the dipole cancelation and get improvements in the lower range of the ESL. And by being a broader band absorber, it does not skew the balance as much as one that only di low-end or only high-end.
Hey Tom, congrats! those look sharp
These should definetly help with echo-related issues. Can you diagram (pencil on napking is fine) your room in general terms, might have some suggestions on placements.Perhaps some other stuff down the road for corners (bass traps). What I'm most trying to solve is the echo in the room.. Fingers crossed and I'll post then they arrive and I get them installed.
Tom, how about a heavy fabric shade with blackout lining, along the lines of... https://www.selectblinds.com/rollershades/modern-elements-blackout-roller-shades.html Just roll them down as needed for serious listening.... Drapes for the sliders are not in the cards, unfortunately...
Wow. That is a challenge!! Can’t even imagine dipoles in that room. Haha.