The correct and universal answer is 'it depends'...on everything. Some multichannel amps such as the Proceed BPA and HPA series use separate power transformers per channel so they're essentially triple-mono amps sharing only the chassis and 120VAC circuitry. Some 5-, 6-, and 7-channel amps have only one power transformer but otherwise-separate powersupplies per channel. Maybe the super-premium amps you mention are better sounding than anything I've mentioned. As I said, it depends.
I suppose, theoretically, that mono amps per channel would be the best place to start. Maybe everything goes downhill from there. It depends.
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I suppose, theoretically, that mono amps per channel would be the best place to start. Maybe everything goes downhill from there. It depends.
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