Audio Research Ref 5 and Krell amps

Sfstereo, I own the REF 5 and used to own the Ref 3. I concur with Micro insofar as saying that the Ref 3 and 5 have similar input/output electrical attributes (e.g. impedance, voltage etc). So, if the Ref 3 works well with the Krell, I expect the Ref 5 would as well.

Mitch4,

I have had the Krell 450 mcx for a couple of years now. I think about replacing them with the newer EVO series but I am not sure if they are that much better. In the meantime, I am considering getting a new preamp.

microstrip & bifwynne,

Thanks for your feedback. I have always used ss preamps but after reading all the positive reviews on the ref 5, I thought I give tube preamp a chance. I am looking for a slightly larger soundstage and warmer sound that tube is suppose to provide.
Based on the high input impedance of the Krell, the Ref 5 should work well. I am planning to use balanced outputs.

Macdadtexas,
I will place an order the ref 5 in a couple of weeks.

SFstereo

So what is the preamp your using right now with the 450's? And have you tryed any of the Evo preamps or are you strickly headed in the tube direction for a change?

Heykay,

I am currently using a Pass Labs XP-10. I have always had SS preamps so I want to try tube for a change.