Since the 15dB peaks require 1A @120V, that's 120W. And if the amps are 70% efficient, that's 84W going into your two fronts and 36W heating your room.

So if at 85dB the power is P, at 100dB the power will be P + 84. 100dB requires 32 times the power compared to 85dB. So, P + 84 = 32P and solving for P gives 2.7W. So your nominal power is a few watts like I estimated before.

So when you get your Axioms, are you planning on an A/B test with the Bose?