Suggestions? Tubed linestage pre-amp??

I second the Cary SLP-98!

What are you looking to improve and what aspects of sound reproduction are most important to you? Would help to get more targeted recommendations.

Soix -
What am I looking for?
Best I can do is to say more of what other system upgrades have provided. Namely, more heft to the music...that is, a greater palpability without (to my ear) altering tonal balance.

Instead of looking at a 100 lb. music image, I want a 200 lb. image. I'm exaggerating to make a point and obviously wouldn't want something fat or slow sounding.

Greater stage depth...so maybe stronger, more stable cues on instrument and vocal placement. The Forests do a great job at imaging and I've spent a lot of time on placement. Not interested in changing speakers.

What is most important to me?
An enjoyable experience of the music (have that now, really) aided by a well-resolved, non-fatiguing, large 3D presentation (to the extent that one is embedded in the actual recording).

Prefer slightly warm tonal balance over rigorously neutral and with tightly controlled bass. At the same time, enjoy musical detail and resolution but not at the price of introduced harshness.

Don't think I'm offering any unique insights here. Expect many interested in audio would want the same. Thanks for your time.

Audio Horizons TP 2.3 gets my vote of confidence.

Thanks Sabai...I'll do some reading on the TP 2.3. Thanks also to Abrew and Triode.