Preamp comparison- need help

Current system:
Audio Aero Prima cd player
Rega 5 turntable/ Benz Micro Glider cartridge
Dynaudio Contour 1.4 speakers
REL Strata III sub
Plinius P8 power amp

Using preout from SS integrated for now

I am looking at an Audio Research LS-12 or Cary SLP-03.
Any thoughts will be appreciated.
Consider some of the other AR's with tube phono stages, 6C, 2B and so won't believe the quality of the phono stages.
It's not exactly the same but I have a Cary SLP-98p and I love it. I have had several Audio Research preamp, none of the newer models, and liked them, very, very much. Extremely smoooooooooth, great build quality. I think the Cary is comparable, but smoother. I have Maggies and it seems to mellow them out more, which is what I was looking for. You may not need/want that with your Dynaudio's, but I have become a huge Cary fan in the last 6 months. Good luck, both great choices.
I have a Cary SLP98P and I'm getting all new Ruby EL 34 tubes 2 EL84's and 2 12ax7 input tubes for my Cary V12R amp in a couple of days. I tested the amp tubes and deceided to just get a new set. The SLP98P ran very good when I still had my McIntosh 7270 amp. Still having both a tube amp and preamp is even better. I love both units and have not rolled any tubes yet. I used to do it the hard way and roll speakers. I've been single for some time now.
Modwright, Bruce Moore, Cary
Have all three and that's the order of finish.
Win, place, show
Modwright SWL 9.0se with tube rectifier, u cannot go wrong with this.