I go through a lot of amps, but the one amp that I will never sell is my Will Vincent Dynaco ST-70. Sometimes the ST-70 will be put on a shelf for a month or two while I try something else. (I'm currently having what I think will be a brief fling with a SET amp.) But every time I bring Will's ST-70 back into rotation I am floored by its presence, soundstage, and very good. very natural bass. Upgrade the rectifier tube, leave the El-34 tubes alone. Best amp I own
