I have heard most of the amplifiers listed here and enjoy the sound of many of them. I have recently had the pleasure of dealing with Tom Tutay. His signature product is the remanufacture of the Altec model 1570 high power 811b tube mono amplifier. I have a pair in my system now and can not imagine putting anything else in my system to replace them. These things are built like tanks and produce a sound in my system that I have long sought. I have owned ARC amplifiers and preamps, orginal Marantz (7c and its companions) Krell and other well known equipment. Just glad I have them.
