Need Tube Preamp Warmth


I’m looking for recommendations for a tube preamp with a warm presentation, good soundstaging and imaging, and low-end extension.
It will replace my Rogue Perseus Magnum, which is a detailed, neutral sounding preamp with a great amount of extension in the highs. Even using Mullard Longplates, I’m not getting the sound I want.

The preamp is paired with a Sunfire 300 which has an input impedance of 42 kOhms and input sensitivity of 1.64V. (Single-ended).

The rest of my system is comprised of:
ARC CD3 mk II
Linn Axis TT
Gallo CL-3 speakers
Purist Audio Aqueous speaker cables
Cardas Parsec ICs
Audience PowerChords

The ideal preamp will reproduce classical music in an organic and natural way. (Not looking for vintage).
My budget is $2000 to $2500 used. Any help is much appreciated.
128x128lowrider57
"The ideal preamp will reproduce classical music in an organic and natural way. (Not looking for vintage).
My budget is $2000 to $2500 used. Any help is much appreciated."

I third the CJ choice, it fits the bill of what you're asking especially in that price range used. Don't discount vintage with some upgrades, particularly at your price point. You might be shocked how much improvement can be realized by upgrading passive parts with the right pre choice, I sure was! Only problem is no remote, oh well.
I forgot to mention one preamp. The Atma-Sphere UV-1. I'm pretty sure you can get one without going over budget.
Thank you, Polk432. A tube amp would provide the most realistic sonics. I ultimately will give tubes a try, but that's for my next generation system.

For now I'm very happy with my Sunfire amp, it's got warmth, excellent dynamics, and it's so smooth that I would call it very non-solid state sounding. Perfect for Classical music.

For the record, I'm not trying to get a tube sound out of my system (of course I'd need a tube amp), I like the timbre and characteristics that a tube preamp can provide.
I had a very nice sound with the Jolida as my preamp, but the damn thing was too noisy.
Please don't take offense, but FWIW, sounds like a short term approach and you might be better off figuring out what other component isn't natural enough sounding and making you feel like extra warmth is needed.

Sbank, none taken and I'll look into your suggestions.
I don't feel this is a short term approach, I've chosen wisely with the budget I've had (also spent a lot on power conditioning). The synergy between amp, speaker cables and Gallo speakers have a very natural and realistic image. I've substituted preamps and could hear the realism of a string quartet...it sounds lovely.

To quote you, "what other component isn't natural enough sounding..." It's the preamp; it is analytical with every type of tube. That's it's design and my mistake was during my audition it was paired with a tube amp.

I appreciate your advice and perhaps "warmth" is not the way I should describe it, but there's no doubt that a preamp upgrade is called for.