Since you have the Marantz amps, you may want to try the Marantz 7S2 pre-amp. If it had HT pass-thru I would have strongly considered keeping the one I sold close to 3 years ago.
Solid State Preamps
I have a tube preamp and a recently acquired Herron tube phono pre. I am thinking that I want to go to a solid state preamp because my sound has gotten a bit too pretty. Other equipment includes a Basis table and arm, Dynavector XX mkii cartridge, Marantz MA9 amps, Magico V3 speakers, Transparent cabling. I could spend up to $5000--what are some choices? I am already thinking about Esoteric C-03 and Simaudio P-7. Suggestions appreciated. I would really like a balance control with a new unit too.