I have 6 hooked up to an Onkyo TX-sr706 stereo. I have had the speakers for about 2 years so they have had a lot of time to break in. When I bought em I got em for 60 bucks a pair then, matched them up with a velodyne vrp-12 and with old pioneer stereo sounded pretty good. When I upgraded to the onkyo, They now sound phenomenal! Audyssey seems to have really woke these things up. Blu Ray movies sound astounding!