Got a Sansui AU-505 here that I rebuilt for myself! I always have my son come down to the shop and listen with me to my completed projects. When I tell him wow this sounds good, he always says is does but not as good as that little Sansui Amp you had here. That's always his kicker! The good: *Sounds so wonderful even at low volume *Has the image height depth and sound stage of a tube unit (yep I said it, as a tube unit) *The articulation of the low end is phenomenal, how is this thing not breaking up or clipping!!! *Great old school design, even after cooking this thing the heatsink is not really even hot, and all the outputs are within a 1/2 degree of each other temp wise. *It moves air like the big boys-you can feel the low notes in your chest as well as some times vocals. *Sure maybe something beats it in one category, but it will not be by much. This is an amp for people who listen to music not equipment. If it gets any better then this it could be scary! * I can hear it now, oh well my 22XX, or my 9090, or my 777, had em all here rebuilt by me and listened to them all. Please keep this info under your hat, don't want to drive up the prices on this gem. I'll get up some pics of the rebuild in some posts to follow.