Re: matching amp with speakers
While perhaps TMI for the OP, some of the larger modern amps put out more short term power than the line cord can supply longer term, so by definition can only do so for a fraction of the time. An amp that delivers full rated output 24x7 is arguably over-designed for reproducing music (I am old enough to remember when they did).
To be less than 3 dB crest factor you are talking clipped sine wave approaching a square wave. While heavily clipped bass program can momentarily drop below 3dB, for it to spend too much time, playing that heavily clipped, it would sound more like a guitar fuzz box, than bass line.
I do not dispute that some modern genres of music (?) push very heavy duty cycle in the low frequency bandpass.
JR
