Tube Pre-Amp for Class D amps

Like Tgrisham I used a Modwright 36.5 pre with Wyred mono amps. Was wonderful but too many boxes for my apartment.

Marakentz, it appears that both of us didn't read the OP opening very well. Yes, what you state is true, but not relevant to the OP needs. I failed to notice that he goes on to mention the specific Class D amp he'll be using; the Channel Islands D-200's, which I believe has an input impedance of 100 KOhms. He should have many options available.

thanks all so much to date, this is good stuff and many pre's i've heard of