I'm not the target customer either, for multiple reasons. But I totally understand the appeal. If I had the time, budget, and speakers to play around with biamping, this new amp would be very interesting to me. I think it's a pretty clever setup for the deep-pocketed biamp crowd. No need for external crossover, two mono amps in a single chassis. And the new 451 would personally interest me more than the 1901 just for the more traditional form factor.