On Jul 21, 7:28*pm, "William Sommerwerck"
wrote:
I made a mistake -- for some reason I assumed this was a tube amp.
(I don't
know why.)

Regardless, if the output levels are closely matched, one amp /will
not/
pump current into the other. But to gain any increase in power,
you'd have
to use a lower-impedance speaker.

You are VERY WRONG on this.

There is also the possibility that, even with the levels matched,
the amps
might not "like" looking at each other.

Virtually a certainty.

"Buy a decent amplifier that delivers the power you need." -- The
Lady from
Philadelphia

This is good advice.

G²