Audiophile Grade RCA Input Suggestions?

The right RCA input on my Trichord Dino phono preamp has gone dead. Verified through multimeter that there is an internal short.

This is a good opportunity to upgrade! For those of you who build/mod their components, what RCA input components do you suggest? I need a two-way component, and I'll be upgrading both at the same time to keep the sound signature the same.