Mating an AR LS3B with a CJ Sonographe sa 400?


I already have the audio research ls3b pre ( solid state), using single ended outs. I am considering purchasing the Conrad Johnson Sonographe SA 400 amp. I have read that it is finicky about what pre it's paired with...any help?
pjnad
That's what I've heard...but I have also read that it really seems to sound best with a CJ pre. In fact, some writers claim that it "doesn't like" certain pre's. I would hate to buy it and find out that was true.
This is why it is always better to stay with the same brand. Amps and preamps from the same manufacturer are designed to work together and usually yield the best sound.