Suggestions for my system: Preamp?


Especially for a recent college graduate, I am lucky to have such a nice stereo. It includes:

Magnepan 1.6QRs
NHT 12" powered subwoofer with an external crossover
Arcam CD-72T
Bryston 4B

Currently, my father's old Yamaha prologic (bah!) receiver is serving as my preamp. Also, I have AudioQuest cable, some decent interconnects (50 to 100 bucks a pop, not toooo expensive but not toooo cheap), and a Monster HTS1000 power conditioner.

I've been told that I really need a replacement for the Yamaha preamp. However, the entire aforementioned system was purchased for only 2 thousand dollars. Because I really don't have much cash, I've had to find excellent bargains and values.

So if you could kindly drop some suggestions for preamps that cost less than 750 used, I would appreciate it! My two criteria are: 1) It must be of sonic equivalence to my other components and 2) Must be able to send my towers AND my subwoofer a signal without using a Y splitter (i.e. the preamplifier must have more than 1 set of outputs). I really don't know where to begin looking, so thank you for your help!
128x128baltman
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I am considering all the preamps mentioned above, but especially the Adcom GFP-750 or the Classé CP-35. Is there a winner between these two amps?

Also, Is another which sells for the same price used clearly better than these two? Worse?

Someone told me that since I listen to rock music along with everything else that I should avoid tubes because they will add to the slowness of my Magnepans, I right now I'm limiting my search to solid-state preamps. Thanks!
The Classe CP-35 is vastly superior to the Adcom. It's got a lot better bass and just more life (better dynamics) than the Adcom. Oh, and don't listen to what people tell you about tube preamps sounding slow. They've obviously never heard a good one. Anyway, you'll be happy -- at least for a while -- with a CP-35.
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Are you sure about the Classe? I thought I saw a diagram that showed it with two RCA outputs... I could be wrong :)