Conrad-Johnson MF2300A vs 2500A - Opinions

For anyone who has compared both of these on the same system, which is the overall better amp? Is there a significant difference? I'm primarily interested in a large soundstage and excellent imaging, but everything else matters (bass articulation, midrange sweetness, etc.). I will be listening on Infinity RS 8Kappa with a CJ PF2 preamp. I currently have a Krell 400xi as well as Hafler 9500 and Odyssey Stratos amps (over which I'm looking for an improvement). I Listen mostly to jazz, vocals/choral, classical.

Many thanks
Kofi