Reading some of the early entries made me remember a Sony clunker I purchased. A techy friend of mine was convinced in 1978 that v-fets were the future and that the Sony v-fet integrateds were superior to anything else ever made, afterall, he bought one. So I bought one to... about 70 wpc (I think, don't remember for sure). It sounded terrible and had me yearning for the big Scott receiver (70 wpc, and I'm sure of that) I had traded in. Then the Sony started blowing output devices - over and over again. The repair man at the "authorized Song repair center" told me, after putting my third set of v-fet outputs, that the design was flawed (we had become friends) and that I should trade or sell it ASAP. So, I did. I called my techy friend and told him what I thought about his recommendation and just how bad it was. Turns out, John hated his too, got rid of it, and built his own amp which he owned for years. I think of John (now deceased) and the wretched v-fet amp whenever I see one for sale on e-ripoff advertised as "rare." There is a reason they are rare!!! Good listening.