Tube Pre-Amp for Class D amps

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

I agree Rx8man,

I also have the DUDE and  Nuforce Ref 9 V3 SE monos w/ TDSS level 3 upgrades.  I am not searching for either component anymore unless something craps out.  When I put NOS tubes from Andy's Vintage Tubes, the level of SQ that I now have is way beyond when I first got the DUDE and was the 3rd owner.  I think the tubes in there were the original and I've had the DUDE for 5 years running way too often 24/7.  Huge preamp, little amps, but great sound together.  Throw in a little Krissy magic, and voila, aural delight.

Bob