A CAT SL-1 is not balanced and has no remote, but, in my opinion, absolutely blows away the BAT 51SE sonically. The CAT Utimate has much better dynamics, extension and just a much better midrange. Anyway, that's my opinion. Other pres which don't fit your requirements, but which sound good are:
First Sound Presence Deluxe Mk II - stunning dynamics, low-level detail and transparence, terrific female vocals. No remote and not balanced.
Ayre K-1Xe - balanced and has remote, but not a tube pre.
Haven't heard the latest model, so I cannot really comment sonically. Earlier model was slightly to the cooler side of neutral, but had great timbre and separation of instruments. Earlier model was a little soft on dynamics, but I heard this has long since been "corrected".
I would check out some of the solid state, no remote and single-ended entrants before simply ruling them out. You might find, after listening, that these are indeed worth consideration. If the answer is still no, then sorry for interrupting.
First Sound Presence Deluxe Mk II - stunning dynamics, low-level detail and transparence, terrific female vocals. No remote and not balanced.
Ayre K-1Xe - balanced and has remote, but not a tube pre.
Haven't heard the latest model, so I cannot really comment sonically. Earlier model was slightly to the cooler side of neutral, but had great timbre and separation of instruments. Earlier model was a little soft on dynamics, but I heard this has long since been "corrected".
I would check out some of the solid state, no remote and single-ended entrants before simply ruling them out. You might find, after listening, that these are indeed worth consideration. If the answer is still no, then sorry for interrupting.