I know this is something you thought you would never hear from me BUT......with my present setup, I have plenty of power. When I build my ground -up mono's that will probably be the end of my amp searching. This particu;lar piece is very interesting from the standpoint that it is 2 separate quasi's --BRIDGED--for 1 channel and still will take on all comers at 4 ohms and less. 1500 watts into 4 ohms. Tests at 750 into 8. It was built for the road and to survive. My respect for Crown has jumped immensely just from roaming arouind under the hood of this one. The IC-150 and D150A he left here are as cherry as they come. The satin finish on the faceplates are immaculate. Satin finishes are hard to keep that way as any interaction with the physical realm results on marking of some kind. These have NONE.