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
Post removed 
Tvad: I really didn't wish to interrupt a perfectly fine thread, in fact I thought I was helping it, given my explanation as to who actually designed the circuit. (The man has a fairly decent reputation ...).

Like yourself, I hate it when pissing matches take over the topic of the thread. In this regard, I recommend the First Sound, not as my first choice, mind you, but I did add that my 2 favorites were designed by the same guy.

Who is Noel? Please ask Emmanual ...