Finally got my Dynaco ST-70 hooked up. It sounds great! Warm and smooth like a tube amp should. Peter Gabriel "So" is my reference album. I've listened to it so many times I know exactly how it should sound and it is a very dynamic album. Had some family over yesterday digging through the crates and cranked some Stevie Ray Vaughan, Bob Dylan, Walter “Wolfman” Washington and Magic Sam. Plays loud and clear. I can't see myself spending any more money tweaking this setup. It's good as is.