Which Preamp will go well with Mag 3.6R ?

Tube preamps are great with Maggies and a high powered amp, that's exactly the set up I have.

I would suggest buying a good DAC (Benchmark, Bel Canto, Bryston, PS Audio) instead of a CD player to start, and use it to decode lossless files. An AppleTV or SONOS are great ways to start. You download your music once, then only have to search for it with the remote. If you spend your money on the DAC, I believe you will get much better sound, unless you move WAY up the CD foodchain. That's my experience at least. If you are not going to play vinyl, then the good DAC-Music Server is the best reasonably priced option.

Preamps, there are many excellent choices, I would start with used ARC, Conrad Johnson, McIntosh (I love the sound of the C2200), Cary, and Rogue.

One last thing, the Bryston 4Bsst is probably not going to really wake up your Maggies. I would cut your budget on the front end and start by looking at the 14 Bsst, that will make the Maggies sing. I had the 7BSST's (really the same thing as the 14bsst) previously and they were some of my all time favorite amps with Maggies. A very good match.

Good luck, and let us know what you get.

I agree w/the MHDT tube DAC, I loved the Havana that I had. Just connect this to your Apple computer, Toslink better than USB, and play LossLess files. This will make you very happy.

I had the Parasounds in my system a few years back, I really loved those too. Excellent choice. I don't know that I liked them better than the Bryston's, because they were a couple iterations of amps apart, but I did really like both of them.