I once owned a pair of Accuphase P1000 amps. I used them as bridged mono amps and as stereo amps. It was subtle I assure you but I felt they sounded better in stereo mode. I now use one A60. I can't comment on what a pair of A45's would sound like but I doubt they would sound as sweet as a single A65. If high power isn't necessary you may be better served with the one stereo amplifier.
