The VK-200 is a great amp, with open, extended, smooth highs, very sweet mids, and solid bass control with plenty of power. Great tonality, truthful to all instruments. Absolutely dead quiet, with no annoying transformer hum. I've owned mine for about two years, and now it's fed from the BAT VK-30 with NOS Valvo tubes. My golden eared audio buddy says its highs are the best he has heard, period. I tried twice to wreck the amp by connecting a bad XLR cable (open ground). What a frightening noise! The first time, only blew a rail fuse. Second time, took out the fuse and a resistor. BAT repaired in two days at fair price. Great sound, great design, great service. For the life of me, I can't imagine why people sell them, but they do, and a used one is a great bargain.