DC issues using a Krell KSA 150 w/ tubed preamp?


Does anyone have any experience in matching a Krell ss amp w/ a tubed pre? I remember reading somewhere about a compatibility issue...maybe based on something to do w/ the Krell dc setup?
Thanks,
pjnad
Thanks Atmasphere and Hifigeek1 for your comments. I have/ had most of the CJ preamps starting from PV5 till the CT-5 and a bunch of SS and tube gear and only the CT-5 had this issue, in fact, that was the only one. Ed is indeed a very pleasant guy to speak to. Mel, who is taking over his job I believe, is very helpful.
Hi, I own A krell 700cx,you need to use a pre that has zero feedback of any kind!,ayon is a good tube pre that will work,how do I know,I have the cd-player-analogue pre-amp one box combo,it works well,if you like tube pesentation, like I do, cheers!