Why vertical bi-amp? You don't need the same power for the highs as you do for the lows. Horizontal bi-amping is much better because the low frequencies are not robbing power supply current from the high frequencies. The actual ratio depends on the efficiency of the drivers. Are you still going to use the internal speaker crossovers? With or without an external active crossover? Multi-amping has been in my blood for 44 years.
What’s the Right Power Amp Ratio For Bi-Amping?
Is there a “golden rule” or rule of thumb when selecting amplifier power in a bi-amp setup? It seems to me that the power should be apportioned according to the demands. Since most of the energy consumption in sound reproduction is by lows, it stands to reason I should use a much more powerful amplifier for lows than highs, but what ratio of power? 2:1? 10:1? Is there a wrong answer?