Well I've been a visitor here for awhile and decided on the 990 to replace my aging but great sounding Acurus ACT3. This may belong on the 7500 thread but I still have an Acurus A200x3 and want to get the 7500, but I'm concerned as to how the amps will compare. I decided on either Paradigm reference 100, or Deftech 7002, for the fronts and I will use the same brand for the rest of the speakers. My question is should I retire the Acurus and go with the 7700 or just let it drive the rear channels.