Over all the new economical Chinese manufactured tube amps showing up on the scene today I would recommend a restored Dynaco ST-70. It will meet your wattage needs and give you a sound that few new tube amps will approach, very musical. They have legendary iron and with todays modified power supplies and caps are excellent. There are several very reputable builder/dealers on AudioGon worth considering. I concede that buying a new retail product is virtually a "no brainer" yet, with a little research and education there are IMHO some greater Hifi choices out there than these. You get what you pay for and thats not just in cash currency. LOL
Happy Listening!
Happy Listening!