Thanks guys, did ALOT of calibrating last night. Instead of using music to set my volume level I used low bass test tones and now my level is set to around 9:00. But I will say this ,even with the volume up to 3:00 I do not think I was getting alot of distortion, just loads of low dynamic bass. These HSU subs are tremendous. I also think that I am not real use to clean low bass, due to other subs I have owned (cheapos)

"One needs to crawl thru the darkness to stand in the light"