Can a single terminal speaker be bi-amped?


Just acquired a second Hitachi HMA 7500, legendary amp from 70s, revamped by Approved Audio, and want to use both amps with my Kef LS50s. I would double up the speaker cables. What damage could I cause?
springbok10
Give it a try and let us know how it works out. You could just run the speaker wire from one amp to the terminals of the other amp and turn them on at exactly the same time. Good science experiment :)
The real reason this is not practical is that amps have a low output impedance and each will, effectively, short-circuit the other when connected.
Thanks very much for very detailed answers, even comprehensible to a non-physicist like me. Guess I wont be bi-amping speakers that are not bi-wirable!