should have done this long ago. After talking with Steven Norber, formerly of Edge, I did have him upgrade my amp to the 10.2 version. Amazing improvement..much cleaner, quieter, better ambience and decay, stronger in mid-bass,much easier to listen to for long sessions...one of the best upgrades I have eve done. Mated to my new Consensus Passion speakers and I am closer to real music than ever before...