Preamp with most dynamic contrast?


Which preamp in the $ 2000 to $ 5000 range offers the most dynamic contrast (both macro and micro)?

My current set up offers what I value most in spades (no listener fatigue, true timber and great imaging) but is somewhat mellow in dynamic contrasts, especially Micro. I think a change in preamps might do the trick. Current system: Vienna Accoustic Mahler speakers, Bryston 4BST amp, Electrocompaniet EC 4.7 preamp, Meridian 508.24 CD run balanced.
PS: I am tempted to try tubes this time...thanks in advance for your kind suggestions.

Bruno
bokfudo
Conrad Johnson tubed pre's do a great job at dynamic contrast(both micro and macro); it is what they are known for. In your price range I would suggest a used premier 16lsII or 17lsII; the 16 would be my first choice.

Chuck
mine--Supratek Syrah (for your price range, could probably move up to the Grange).
If you can go single-ended, check out the 10A or 11A tube preamps from Steve Sammett at SAS Audio. They are a steal at $2K and $3.5K. I currently own the 10A, wouldn't even have thought about selling it (in the near future) except for the fact that I am looking into a fully balanced preamp to match with my Atma-Sphere amps.