First tube preamp recommendations (under $5k)

You need to audition the Backert Labs Rhumba 1.3. If $5k is the goal, then go with the Extreme version.

I couldn't be happier with my Sonic Frontier Line 2.  bought used.  solidly built.  very serviceable - Parts Connection.  XLR in and out.  dead silent. IR remote.  this was my first Tube pre-amp so i can't say as i have any comparison to others.   

New:  Audible Illusions M3B


Does this preamp burn through tubes fast like the older model audible illusions preamp did?

Though I have fond memories of the ARC SP-3 I bought new in 1973, it's sound is definitely of the old-school tube sound of the 1950's and 60's---on the soft and warm side. I doubt restoring one changes that.

A few over-looked tube pre-amps:

My pal Brooks Berdan employed a Hovland SP-100 as his shop's reference pre-amp for years (new it retailed for not much more than your budget), alternating with the 2-box Jadis (for a LOT more money).

The EAR-Yoshino 868L (line stage only) and 868PL (phono and line) are underground cult favorites, both within your budget. Their big brother the 912 is far above that limit, around $12,000 I believe. Art Dudley loved the 912, the only pre-amp he auditioned which caused him to consider replacing his Shindo.

The Atma-Sphere MP-3 is mighty fine, but somewhat limited in it's input and output facilities.

Wells Audio Commander, level I.  End game.