again, thanks. i'll take the advice and go with one amp.
i had planned to use a rockville preamp with a bluetooth interface. it has separate R/L left TRS inputs and outputs. i had planned to send one output/channel to each amp (running in mono mode)
i'll admit that most of the energy behind this plan was the enjoyment of seeing and hearing two 40+ year old classic Crown amps driving a pair of one-owner 40+ year old Hersey gen 1s. i have collected a vintage rack mount case, preamp, power supply and EQ. the set up looks super retro, but since i had no experience with amping each channel separately i thought i had better get some coaching
(....yeah, i know...old guy stuff...guilty as charged)