The thing is I heard 007t and liked T1S and W better. I never heard KGSS but sounds like it's a nice amp. I did have a chance to listen to SRM-717 and it very good, especial with O2, too bad they don't make them with normal bias. I need normal bias for my SR-Sigmas so any amp without is out of the question for me. How was the sound stage on KGSS?