Prsfan, I had evaluated both the 7125 and 7500 as potential upgrades for my Classe CAV-75 for driving my Martin Logan reQuests. I posted about it some time ago--wow, just realized it's been 7 satisfied years--here: http://ubb.outlawaudio.com/ubbthreads/ubbthreads.php?ubb=showflat&Number=70585