I need a phono preamp and I'm leaning toward Krell

I recently sold a Krell KSP-7b with an inboard phono stage. I replaced it with a Krell KRC 2 which doesn't have any phono stage. I have listened to the KPA but I've been told the KPE is better and KPE reference is better still. I cannot audition any of these where I live so your experience would be helpful.
My system currently consists of a Sota Star turntable with a Rega RB 900 arm and a Benz Glider MO cartridge. I'm running the KRC 2 into an Aragon 8008st amp. My speakers are Sony SS M7A. I use mostly Cardas Golden Section interconnect with a pair of Purist Collosus and my speaker cable is Monster M2.4. This is probably more info than you need or want but I'd appreciate any input about the Krell phono sections or others with which you've had good experiences.