In the manual it says you can vertical bi-amp with two identical stereo amplifiers.
If they are not identical amps...you would need an external crossover with the proper slope. I am not sure why you would want to do this since Richard put so much care into the design of his crossovers.
If they are not identical amps...you would need an external crossover with the proper slope. I am not sure why you would want to do this since Richard put so much care into the design of his crossovers.