When I installed these, I noticed the damping immediately.

These are acceptable pads for certain applications. The foam is slightly thicker than the 1 offering on Monoprice but the build quality is still questionable. Im using these above my mixing console to dampen the sound. Keeping my fingers crossed they do the jon

It's exactly what you would expect and the foam performs exactly how it should. I left 5 out of 5 stars; because I'm satisfied with how it looks and it made a huge difference acoustically treating my room (I used them with acoustic blankets). The angles are deep and I think it's a beautiful design compared to other companies. Good product, it's not flimsy. I bought two dozen and every panel was produced well/checked properly. I bought them 'on sale' and I believe it was a fair price.