Distinctions! By SX I should have said SX-xx5x models--your SX-838 is a warmer sounding receiver than the Silver Everywhere 1977 series. I also think I need to talk about the plus-500-dollar-each HPM's in a different light from the HPM-100 on down--if my experience with my 'new' HPM-1500 is an indicator. 1500 sounds great on my TOTL Concept. 6 hours of listening to FM and no fatigue. So we have the HPM-200, 1100, 150, & 1500; these mop the floor with the 100's (with all due respect, I've had three 100's in perfect shape). donberry, ah, so peak-era Kenwoods also work; thanks, I haven't moved the 9050 from the other room yet to tell. We'll see. Then the R-117 gets a turn. Sweet setup redd6054 and I don't just mean the one with wheels. My AX-900U is only half alive, but my M-4 and C-4's may give me a glimpse of your set.