New to the two channel world - Advice needed on preamp

Ghasley- yes, right now the Sony is working as my preamp and dac. I can manage the sub from the front panel. 

Would a device like a Cambridge 851N or a NAD C658 work for me?  They seem to be a preamp, dac, and network streamer wrapped in one. 

Lots of things will work but what is it you are trying to accomplish? Separates or integrated 1 box system?

"...but my experience with Bryston is they do really well with a tube rather than SS front end. "

I fully concur. 

first you have to know what you are looking for .all those preamps suggested above sound different .you have two important things already:speakers and a very good power amp. one question should be-which preamp sounds the best with bryston and paradigm?  you should to go to stores or houses and get an idea about the sound signature of some preamps and guess if it will suit your system and acoustic conditions.a dac is very important as well
another question is which sound are you after? a used peachtree grand pre should be nice you can use the tube buffer or stay solid state . 

F917025 - I listen to a mix of rock, blues, and classical.  I prefer warm to bright, but love to pick out individual instruments and follow them through the song.  With me being new to this, I know the parts and what they do, I just don’t know which part is the best place to spend the money.  Preamp?  Interconnects? DAC?  I have listened to peach tree in the past and have been very impressed.  Would I biamp with the additional outputs on the Grand?