Best Tubed Preamp For A Warm, Rich Sound, Yet Still Detailed and Agile

I hope your Rowland Model 6's are still serving you well!

Actually, the Model 6's are long gone, but not forgotten.

https://forum.audiogon.com/discussions/rowland-model-6-monoblocks-my-thoughts

The Model 6's were some terrific amps, without question the best Class A/B amps I've ever heard.

I have heard good things of Wells Audio, but I've never had a chance to hear any of their products.
I'll be interested to see what preamp you wind up mating with that amp.
Have you asked Jeff Wells for any preamp recommendation?

While the description of the Innamorata at the Wells Audio website as well as in various reviews indicate its input impedance as 50K, its manual indicates 30K. I don’t know which number is correct, of course, but 30K would be somewhat marginal (or worse) for use with several of the preamps that have been suggested. For example, Stereophile measured the 20 Hz output impedance of the Lamm LL2 at 3.3K, and the 20 Hz output impedance of the Cary SLP-05 at 3.4K, both of which would be just barely acceptable in conjunction with a 30K load, IMO. I’d have even greater concerns about the unspecified output impedances of the Shindo products. For example, Stereophile measured the output impedance of the Aurieges phono preamp as rising to 16.5K (!) at 20 Hz, which would not be suitable even in conjunction with a 50K load IMO.

Also, the Atmasphere preamps that were suggested would probably not be optimal choices for use with the Innamorata, as they are fully balanced and provide RCA outputs only as an option.

A specific suggestion I would add to those that have been mentioned is the Herron VTSP-3A, at $6550. I haven’t heard it myself, but members whose opinions I have considerable respect for have been very pleased with it, and the extremely positive experiences I and many others here have had with Herron’s VTPH-2 phono stage, and in dealing with Keith Herron himself (who is a treasure to deal with), lead me to suggest it.

Good luck. Regards,
-- Al

This article might be helpful:

http://www.dagogo.com/boppin-down-memory-lane-preamps

P.S. to my previous post, re the Herron preamp. Karl Lozier’s review of an earlier version of the VTSP-3A states as follows, as quoted at the Herron website:

The fact that it has a tad ... more bass fullness, richness and power in the mid to upper bass is only a part of overall experience and does tend to reveal its vacuum tube heritage. The audibly extended high frequency response has its own attraction at the same time being silky smooth and sweet while revealing even more inner detail. That is a really tough balancing act for an audio designer to successfully accomplish.

Sounds very consistent with the sonic traits you indicated you are looking for.

Good luck. Regards,
-- Al

Allnic L-3000 MK2  I think this is a DHT preamp.

Happy Listening.