Looking for a tube Preamp new or used for under $2000...

Matt, if you can solder, have patience, identify components and are not a "glitz queen", then this Japanese TU-8500 is a killer tube preamp for only $550!!!!.

MM & MC phono inputs, high or low switchable preamp gain.
Better than probably anything else up to $2k.

6 parts to this review
https://cheaptubeaudio.blogspot.com/2015/03/review-elekit-tu-8500-full-function.html

https://www.monoandstereo.com/2017/05/the-greatest-bang-for-buck-elekit-tu.html

https://tubedepot.com/products/elekit-tu-8500-stereo-tube-preamplifier-kit

https://www.elekit.co.jp/en/product/TU-8500

Cheers George

Check out a used Ultraverve by deHavilland. I had integrated amps and separates based on 12Au7 tubes for years, then tried this 6sn7 signal tube based pre. In my system the 6sn7 pre gave me what I was looking for, bigger soundstage, instruments and voices just sounded more natural. Just my experience. Everyones ears are different. Rolling that 6sn7 was much cheaper also. I was surprised how much impact a preamp has on a system.

PS - I do not have the same amp as you. My monoblocks are by Audio Mirror.

+1 for the Ultraverve

I recently replaced my Luxman CL-32 with an Audio Research SP-6B for about 900 and it is WONDERFUL on my Maggies.

Look around--you don't need the top-of-the line Audio Research product to get their quality and transparency.

Cheers!