Tube Pre/ Class D Amp - Who has done it?

I was using an Icon Audio LA4 MKII SIG. with a Hypex Nilai for the last few months. It's pretty good for the money. I used some overly "warm" DIY preamps with other class D modules in the past that were kinda cool with certain music. 

I found the Nilai to be fine with solid state as well. I've enjoyed messing with Class D the last couple years but I'm taking a break from it. 

@j-wall if you don’t miss the heat I’m not sure that OTL’s are the way to go. Although it is nice to listen in your skivvies during the winter. In all seriousness though, I think they should match up nicely with your Allnic. Just be sure your speakers are a good match as well. Whether you’re missing anything now is something only you can answer.

My AUDIO-GD HE1 XLR 10 tube preamp with the Peachtree GAN-1 is a match that makes music sound Real..Beautiful Synergy !..Love it with Any speakers I throw at it. ...From KLH Model 3's to Borresen X-3's....I love my system .

I have been running a McIntosh C220 pre (actually a tube hybrid) with an Arion Audio S-500 class D amp for almost 6 years now.  Very happy with the synergy.  I get a touch of tube warmth (with Mullard reproduction tubes) and plenty of clean, detailed power.  No interest in any upgrades.

I ran a Rogue RP-1 with Mullards and PS Audio S-300.  Sounded great for the $s.   Ended up getting some Quad speakers so moved the S300 down the line and picked up a Quad Altera stereo A/B to try and pick up some synergy.

Bryston coming out with a new class D offering that really interests me.

I think tube pre and class D amps or A/B make a great combo.