Hey , it came early,got it today and i love it.I have a b&k reference 202 preamp, until i can afford a replacement,but i have to say this amp is better than haflers,b&k,adcom and classe that i have had in the past.It has no problems driving the 4ohm load on my diy speakers which are like proac 2.5's, but with revelator tweeters and hovland/alphacore xovers.I have tighter,faster and deeper bass,lightyears better midrange resolution and top end detail than with the previous b&k,but i expected all of this,what i did not expect is the difference in sound quality between ic's,either this amp is real sensitive to what ic's it likes or some of the "giant killer budget ic's" i tried are not as good as i thought,and to make matters worse i just had someone win my best ic's electraglide sigs,but while i am waiting for the winners money these sure sound smooth and fast.Sedond got any tips for ic's? I also have a new coincident pc on the aw100,and according to all the owners and the maker of this brand,all there stuff including cords takes 3-500 hours to break in.I will try the stock cord in the morning and see if there is any difference.With music sounding this good,i can hardly wait till i get the right cable match and preamp,allthough the b&k is no slouch for the time being.Sedond,ever run yours mono or with balanced xlr's,does it make a big difference?