P.S: One more point is that I wouldn’t be surprised if the input impedance of the KWA 150SE is only half as much in the bridged mono mode Lalit uses as in stereo mode, since in bridged mono mode a single input signal is internally routed into both amplifier channels. If that might matter with a preamp that is being considered, obviously Dan Wright would be the one to ask.
Regards,
-- Al
Regards,
-- Al