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When Bi-amping is there change in sensitivity

I am thinking of Bi-amping my speakers with a 80 wpc tube amplifier driving mid & high frequencies and a 500 wpc solid state amp to drive the LF driver. I was wondering if the tube amp will be able to keep up with the same volume levels as the solid state amp. I assume that it would be possible if there were difference in sensitivities for the LF and mid/hi frequencies. Does anyone know if the sensitivities change when bi-amping or if it stays the same because of the crossovers?
thanks
gago1101

Showing 2 responses by frogman

frogman
7,520 posts
 
Issues about wether it's actually beneficial or not aside, I am intrigued by a couple of the technical matters discussed so far. Great info from Al (as always) and Drew, BTW.

Is it not true that of great importance is each amp's input sensitivity? And is there a correlation between an amp's power rating and it's input sensitivity as Al suggests? That has not been my experience.

Also, while I understand that each amp would see a full range signal at it's input, I don't understand why the amp would not still benefit from not having to DRIVE a full range signal. What am I missing?
frogman
7,520 posts
 
Thank you for clarifying. It all makes sense.
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