Opinions please on older Sony ES Pre-amps


I currently have an old Adcom (565) pre-amp along with an Adcom 545II Amp and a fairly new set of B&W CDNT 9 speakers. I am replacing the pre-amp with a Sony TA-DM1000ES because I really want a remote for controlling volume. Any opinions on if the Sony will sound better or worse?

Thanks,
Jon
jonsonneborn
Post removed 
So far no one has said anything too good about the Sony DM1000ES. The model does have the "DM" I know because I downloaded the owners manual from Sony. I purchased this on e-bay this week paid $162 including shipping, but havn't received it yet. It was sort of an impulse buy because I had a Sony ES 2 Channel receiver about 12 Yrs ago that I remember sounding great (powering an old pair of Boston Accoustics A100s and a pair of A60s) I will at least try the pre-amp, but have a feeling I will go back to the Adcom until I have the funds to buy something better that has the remote. I looked at that Audio Research LS-15 that Glen mentions, but it's a little rich for my blood right now (getting married later this year). THanks for everyone's help. Jon
Jonsonneborn,

Are you a Patricia Barber fan? Reading between the lines I could sense from your post (second last line, a little rich for my blood). If so don't even think of retaining the Sony!
The Sony TA-E1 Sony preamp sounded why better than the Bat 51SE in my system. I thought that the Bat sounded more like my Sony(e.g. Solid State wise)...but the Sony is alot more detail and smoother.