Depending which directions the channels are sent cancelling out more crosstalk between a pair of channels. Not having to push a single amp into distortion is one other reason things will sound better, two amps may have better control over the speakers if just one wasn’t quite inadequate.
Variable gains are helpful here, thats one thing I will consider if seeking a second amp.
Variable gains are helpful here, thats one thing I will consider if seeking a second amp.