NAD Preamp

i'd opt for a parasound 2100 or p5--nice gear which will match your amp

I tried the Parasound P5 before settling on the NAD. To my ears the NAD sounded better; better soundstage and better bass. Its currently paired with my Vincent SP-331 amp and the combination is relatively "musical" with help from the tube input stage in the Vincent. You may want to consider a tube preamp with the A21 to warm up the SS sound. A fairly popular combination.

The P5 is not half the preamp the P7 is. I'm afraid I can't recommend it at the price point. 

What about a DAC/Pre ? 

Best,

E

Consider a used tube pre. Jolida or Quicksilver. 

I would have to echo an earlier post and tell you to steer clear of NAD.  They have to have the worst, or close to the worst, quality control in the business.  I have had to return no fewer than 3 pre amp/dac/integrated because of silly stuff breaking.  In warranty so i guess it is good i did not lose money, but the aggravation of yet another piece of nad gear failing is simply not worth it imho.