Preamp under $2,000 used

Thanks for the replies, I am more interested in a sold state, but maybe I should be open to tubes. I don't know how reliable and how long they go before needing service or new tubes. 

4hannons, When I said reviewed I simply meant I've read about, read reviews on those and a few others. I'm not looking to throw another $5-10,000 in my system , it sounds very good with the Anthem as preamp, OPPO Bd105 as music player and aforementioned Levinson 532h amp and Revel speakers. I'm just wanting to get a little more refinement and resolution than the Anthem can provide. 
I've heard tube preamps in a couple other systems, one with Revel F208s, sound very good. Don't know between tubed or solid state which would be the quietest, blackest background and refined articulate sound. I know my amp has very capable refined sound, just think my Anthem is good but holding things back a bit. 

4hannons, Thanks for response, yes I do have a hard time turning off, some things sound amazing, its broadening my listening scope of music. Cables are pretty good, Kimber speaker cables and Audioquest Columbia RCA. Yes you are correct you can also rethink or read reviews on different components and cabling and wonder, I think some things may be irrelevant once you get to a certain level of good components/ cables just a matter of opinion.

Thanks to all for feedback, Conrad Johnson sounds like a great option and a few others. I was really hoping for more feedback on Levinson since my amp is Levinson and Ayre or Parasound- solid state type preamp. Although this has perked my interest on some tubes suggestions. 
Oh and if anyone has not tried Tidal HiDef it's pretty amazing. 
Thanks! 

Kalali,  Yes I am looking for a neutral true to the music sound. Why I like the Revels so much. Thanks for your feedback. 

Well after much deliberation and looking for good deal on used preamp I found an Ayre K-5x it it sounds fantastic! Whole new level of refined sound, much sweeter highs and more extended  Vocals are very smooth and natural. I notice pianos, horns and live music sounds much more realistic.Live guitars sound like you are there in an intimate live setting, just amazing when listening to Dire Straits live. 
Now waiting to trade RCA interconnects for XLR for the next step up and better gain, Ayre recommends XLRs for best sound. I'll report back.