I guess you missed the point. I own a BP-3.5 and I have several amps
around my house -- none of them like being plugged into the BP-3.5.
So, it doesn't matter what the manufacturer says -- in the real world,
I have found that the BP-3.5 is similar to other AC Conditioners -- amps
don't seem to like being plugged into it.
Amps I have tried: Levinson 436, Krell FPB 350 MCX, Proceed HPA3,
and Anthem MCA50.
In fact, my sub-woofer, which also has an amplifier, doesn't like being
plugged into the BP-3.5, either.