Audible Illusions do better with tube amps in my experience (owned an Mod 3 A once) Audio Research used under $750 (LS2,5,7,15 with upgraded tubes is fine). Better is a used Cary linestage. They made one at around $1200 without a remote that was dynamite! It was called something like SP50 or LS50 or similar.
Other considerations are used Sonic Frontiers L-2 if you can get under $1k. Another guy recommended looking at Audio Experience Symphonies tube line stage for $400 used price range I think? Anyway, this should get you what you need sonically. Just remember upgraded tubes often make a huge difference as well!
