I've been using Bob Carver's Sunfire Classic Stereo Amp & matching pre-amp for about 20 years. They are both defect-free and they sound wonderful!
About a year ago, I started to hear a soft hum from the amp. Bob Carver had me ship it to him. He replaced the caps, tested to make sure call was well, and sent it back to me... all for free. He wouldn't even let me pay return shipping.
I've heard Carvers new tubed monoblocks and they sound just as great. At 350 w/ch, they'll drive anything. They also run so cool that he guarantees the tubes will last 50 years.
For those who don't already know, Clearthink is a troll who should generally be ignored. As usual, he has no idea what he's talking about: all insults and vitriol, nothing intelligent or useful.
Bob Carver is an audio genius, one of the greatest innovators in the field. He's also a very, very nice guy!