george, the suggestion of using a volume control device such as Schiit Sys will not work in this particular situation since that will reduce the overall volume going into the preamp and not change the gain of the amplifier. Al has accurately and completely covered all the pitfalls of this proposal arrangement. If the amps were closely matched in their power/voltage outputs, some of the other concerns could have been overcome or tolerated at best.
Biamping with very different amps
I'm considering biamping the HF/MF units of KEF Reference 107/2s with a pair of Cary CAD 572SE monoblocks and the LF with a pair of Parasound JC 1 monoblocks. Does that seem a crazy idea?
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