I'm thinking of upgrading to 2 mono amps.I have a B&K ref2220 ch amp now.How important are amps p-p,and dampening factor?The specs on the stereo amp are 75 amps p-p and the dampening factor of 450.The mono amps are 150 amps p-p and 750 as a dampening factor.Will i hear a big difference on my martin logan ascents with the monos?You guys know your amps give me your input.Thanks