Read the Krell manual regarding the use of tube equipment, In the past I owned a Krell FPB 200 stereo amp and I had to open it up and remove two jumpers before using it with a tube pre.
Compatitble tube preamp w/Krell KMA-160's
I haven't used a piece of tube equipment since I stripped my folks console stereo back in the 1970's, but am looking to get into a premium 2-ch tube preamp-I think. I currently have a pair of Krell KMA-160 monoblocks driving a set of Wilson Maxx's (series II). I have read some threads that indicate certain mis-matches between brands. I will eventually want a phono stage (a whole other set of questions-see analog threads), but need to know a good 2 Channel tube preamp-possibly a hybrid. I have heard, because I have fast class A bias amps, I would want a tube/solid state preamp to "keep up" with my Krells. I know nothing about tube brand names or the sound of different types of tubes. I'm wanting a warm, but very dynamic sound, and again, will eventually want a phono stage. All you tube experts out there-lend me your ears-and opinions.