I have an under utilized Marantz PM-5004 integrated amp that I have had trouble parting with as it is really a sweet sounding little amp. The only problem is that it just is not powerful enough. I imagine the its big sisters are very nice. Me being cheap and all and since I already that the PM-5004, I am pondering the possibility of adding a Preamp Output and connecting to a power amp to drive the speakers. I have the service manual and it looks like it could be fairly simple. I have also compared it to the Marantz big sister which has Pre-outs. They simply tap between the preamp and main amp, leaving the main connected.
Is it that simple or am I missing something?