What is Audio Researches best preamp period


Tube or solid state from the oldest to the newest ref ser ,what is the best one they made or make.
bbaxley2
i had the ls-12. it was their last solid state unit and didnt get alot of press...

whether it was their best, i dont know.. i can say that it is one of the most neutral pre's that i heard to date and was killer when run fully balanced...

i regret selling that piece to this day...