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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?
128x128sleepwalker65

Showing 1 response by unsound

unsound
7,315 posts
 

If the woofers are closer to the floor (as they typically are) you'll probably get some room gain there, so that might need to be considered as well.

The cross-overs can play quite a part in this, just think of how much overlap there can be with 1st order cross-overs. The least complicated way to do this is with identical amps.

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