Preamp for Quicksilver Mid Monos

I have a pair of QS mid mono amps which I love.  Been using my exogal comet DAC direct into the amps and they sound great, but I’m thinking about picking up a decent tube preamp and I’m looking for suggestions.  Phono would be nice, but not a deal breaker.  Looking to pay between $1500-$2000 used. Considering the usual subjects, CJ Classic 2, ARC SP16, Modwright 9.0 and of course the QS Linestage.  
QS Linestage would be my pick for these amps.
On Audiogon right now are an LS-16 @ $1400, and an LS-17SE @ $1799.