I'm a newbie and was wondering if I could split the signal from a preamp and connect it to 4 channels of a 5 channel amp to drive a pair of martin logans. Is this safe to do and advisable, or should I just look for 2 separate amps?
Splitting the signal might degrade somewhat but no operational/safety concerns exist doing that. As Eldarado said, 2 sets of outs on the pre IS better.
Many preamps with 2 sets of outputs are simply single outputs with an internal Y connector. In any case, it is just fine as long as the input impedance of the power amps is high enough.
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