Preamp for Parasound and B&W803d2

I have a set of B&W 803d2 now paired with 2 Parasound JC1 mono blocks, I am trying to find a matching balanced preamp which is more on the softer side. 
I was thinking about Mcintosh C220 (tube) or Pass Lab X1 or maybe a PS Audio BHK hybrid. 
I would be interested in your opinions on the preamps. Thank you.