Jeffreybehr...I always heard that connecting two power amp outputs in parallel was a NO-NO. Frankly, I never tried it, as the caution seems reasonable.
Creeper...The "industry standard" when I started biamping in the mid 50's always involved a low level crossover, and I think this terminology remained for many years. Only lately have I heard about using two power amps with passive crosovers. Indeed, until fairly recently loudspeakers did not come with separate terminals for woofer and tweeter (a feature intended to facilitate bi-wiring).
Aggielaw...A low level electronic crossover has far less "personality" than a passive crossover. Of course, the "personality" of the passive crossover may be deliberate, to overcome certain known deficiencies of the drivers.
Creeper...The "industry standard" when I started biamping in the mid 50's always involved a low level crossover, and I think this terminology remained for many years. Only lately have I heard about using two power amps with passive crosovers. Indeed, until fairly recently loudspeakers did not come with separate terminals for woofer and tweeter (a feature intended to facilitate bi-wiring).
Aggielaw...A low level electronic crossover has far less "personality" than a passive crossover. Of course, the "personality" of the passive crossover may be deliberate, to overcome certain known deficiencies of the drivers.