Best sounding,reliable, tube amp below $700 used


Hi, I thought I'd throw out this question to everyone, and see what their opinions are. I'm sure there is a wide range of opinions on it, so the full question is: What is the best tube amp under $700, on the used market, in terms of both sound quality, and reliability?
Thanks
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I'd investigate the Onix SP3....very good, can pick up used for around $500.00. Check 6Moons for review.

Have fun!
Berning EA-230's...some go for about that much...I think at that price they are a steal.
Someone just listed an Aes/Cary Ae-25 Superamp that would be very hard to go wrong with. Apart from that, Quicksilver Mini Mites (monoblocks) also come to mind. Good luck!