A lot of people at the Maggie Users Group are using the Foreplay tube pre. It's a DIY project that's supposed to be easy. There are ones for sale here that are already assembled.
Bryston 4B-ST, Magnepan 1.6QR, suggest a preamp.
I'm resigned to the fact that my Mesa Baron Tigris integrated tube amp won't drive my Magnepan 1.6QR's to their full potential, so I'm buying a Bryston 4B-ST and need your advice on a pre-amp to match. I'd prefer tubes and could go either with or without a phono stage. I'll be using a sub, so I'd also want two pair of outputs. Suggestions?