Top Ten Pre Amp Solid State of all time?

Ok,we have all had fun with this top ten thread. Naturally the Pre Amp is next.Just a wealth of information has poured forth in Top Ten Tuners,and Top Ten Amps,tube or solid state. To start this thread I vote for the Threshold FET 2. Have owned PS Audio,ARC,NAD,but keep going back to the Threshold FET 2. Ok your turn nominate your favorite Pre Amp of all time.