First Sound Presence mk11 vs Audio Research L.S.25


I am in the process of changing pre-amps, from a Audio Research L.S.25 MK1 to a First Sound Presence Deluxe MK11.
I have not had the chance to demo a First Sound pre yet.
(I HAVE BASED MY DECISION ON DEALER ADVICE, PLUS REVIEWS)
How would you compare the two? Sound quality, noise etc.
My power amp is a Bryston 4BST, VPI SCOUT with Dynovector dv20xh mc cartridge, Audio Research phono pre PH5, Ohm 300 MK11 speakers
Thanks for the advice.
dsremer
Dealer advice and reviews are the 2nd and 3rd best options after the guys here on the Gon IMHO.But you know that and pulled the trigger,so....that is a fine system you have.You would think the new sound would be different[of course],but also quite subtle even with available upgrades as they are both excellent units.I am a little surprised why you changed,but should'nt be as I do it alot also.What was your intent?Thanks,Bob...Artg has and likes his F.S.,hopefully he will stop by...
USBLUES THANKS FOR YOUR POST I am just looking for something different, First Sounds may be it. With vinyl a lower noise floor may be noticable have to wait and see.
You are losing balanced operation aren't U?? That could factor in, if in fact, your AR is bal.