I'm listening to mine right now. Very happy with it. Three dimensional, really good extension top and bottom, although not the last word in bass slam. I listen to mostly acoustic music and for that it sounds great. Among the most powerful 50 watt amps I've ever heard. I never bother with ultralinear mode. Never needed it. It does run really hot, but then I suspect that anything with sixteen tubes in it would. It's all point to point wired inside - no circuit boards - and very stoutly constructed in North Carolina. Cary service is a little pricy, but they're quick and I dare you to try to get Mr. Sony on the phone. Cap upgrades are worthwhile. Cheers!