I’ve been a big fan of Acoustimac for the last few years. I’ve purchased panels from some of the other 3 letter initial companies but love the look of the Executive Acoustimac. The beveled edges are a nice touch. I have a small home theater that is very narrow so we unfortunately have seating near the back wall. Covering the back wall in 4” bass traps really cleaned up the intelligibility of the sound/dialogue. I plan to replace my original 2” panels with 4” panels. I have a modest sound system which are on walls due to small kids but the room treatments have really made this a non factor. The build quality of the acoustimacs are great and they are pretty fast to boot!