Anyone with W4S amps and preamp

Using similar interconnect construction(same wire, different termination obviously), I prefer balanced runs between my W4S gear.

I am unsure what your question is. Are you only asking for the W4S preamp and amp combo or any pre used with a Class D amp?

I would like to hear from anyone who uses or has heard the W4S amps and preamp together preferably with balanced connects in respect to other gear they may have owned. I am also interested in input from anyone who has used switching amps with other peamps with good results. I am using a Bel Canto S300ui while my tube amp is in for repair and it sounds surprisingly good. I am considering moving up the chain to mono's for greater resolution and dynamics. Thanks for the replies so far.

Bel Canto gear sounds wonderful, esp the latest models. I love my REF 1000 mk2 (now M) paired with a Pass Labs XP10 pre. Wonderful combination for warm, open, wide soundstage, excellent detail, dynamics and PRAT, very deep tuneful bass. I hear very good things about the REF 500M too. I can't comment about W4S gear. Tell us about your other components...

I'm using a pair of Wyred 4 Sound SX-1000 monoblocks along with a Dodd Audio Battery tube preamp. The music sounds wonderful. I have also used a Plinius M-16 preamp with the SX-1000 monoblocks that also sounded wonderful.
I hope this helps?