I'd love to see a 3 channel version of the Model 7500 in a shallower, lighter case, possibly using a single large toroid with the amplifier modules to either side, similar to the Anthem MCA 30
, which is currently on my very short list. It seems to me that many who use AVRs would be interested in such an amp as an upgrade for their "front end", while continuing to use the receiver's amplification for their surround channels. Alternatively, many who use a dedicated pre/pro (I'm still waiting for the Model 978) might prefer to use separate amps for their mains and surrounds for other reasons and would gravitate to such a product.
I'm aware of the economical Model 2200 option, but don't want the clutter of multiple power cords, and am attracted by the 7500's fully differential design.