My wife chose these panels as an anniversary gift for me and I must admit I was skeptical that six panels (30" x 72" x 1") would correct the sound issues in our room (large room, 20' x 30'). I'm happy to say that my concerns were put to rest after installing the panels. The ringing that was in our theater is now completely gone. On top of the actual performance, the service was stellar. Multiple design choices were sent for our review. Once we selected a couple, some fabric swatches were mailed so we could see exactly how they looked when printed on the fabric. We also needed a custom rounded top to the panels and that was handled flawlessly. Outstanding service and a great looking product that does what it is supposed to equals one more happy customer.