First, thanks for your thought
My main problem is;
The TT bottom out on very low and heavy bass movies, not often, but sometime.
I think, I do not have enough power and the TT goes out of control to be brought back.
Some members think, it could be too much power/or the power is taken away from the adjustment done by Audyssey (too much boost at certain low frequencies).
A pro amp, might fix the power issue, and maybe not
(about double the power, 3DB)
So, logic said, to try to fix the frequencies issues.
From your previous respond, I am wrong and should learn to live my TT bottoming out once in a while (not often).
Or fixing a certain boost (unknown at this point), could maybe fix the situation
Moot situation, or can it be fix (the TT are set fairly low, just enough to feel them)?
After all, it is only chasing the White Rabbit
Edit for my signal flow;
AV8801 sub out 1, to the first sub,
then AV8801 sub out 2 to, the second sub,
From the second sub output (the PB13-Ultra have sub output signal and most sub do now a day) to the SMS-1 for volume control duty,
then a splitter from the SMS-1 to the 2 mono amps,
then the normal speaker wires to the BK from each amp.