My old Ayon CD-5s with Burson single HD discrete op amps, matched 6C4P rectifiers & cryo'd EH 6H30 Gold pins. The gold pins are warmer, lusher sounding tubes. Don't neglect the importance of cables either. I found Jorma Prime sounded harmonically rich, on the warm side and liquid sounding. OTOH Jorma Origo is a bit more neutral if you don't want any more warmth.
I have a Quicksilver full function preamp that can be tubey depending on tubes. I love mine and it's fun and easy to play with tweaking it. It's gonna run you north of 500 hundred but likely less than 1k. I've had mine for 5 years and it's been trouble free with only recently needing to replace a couple resistors. Tubed phono stage is quite the added bonus as well.
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