I was tempted to tag onto the thread below because the OP and I are in similar places, but decided there are enough differences to start a new thread.
https://www.audiocircle.com/index.php?topic=191726.0Depending on where it goes I may link this thread to the other because people interested in one may be interested in the other.
In the other thread, the OP was leaning tube pwr amp. My current interest is limited to pre amps. I did find a lot of help in the recommendations from the other tread.
That said, I am looking for something that leans more tubey. I like reasonably tight bass with a full and textured mid range that does not go as far as bloated. In particular I'm also looking for something with good sound stage depth and layering. I want more of what the current Schiit Lyr and Aegir set up has given me a taste of. The current sound stage depth is okay but is relatively flat. I think the most significant short coming is recessed vocals. I'll go new if necessary but prefer used to keep it under $2500. And, because I'm shallow, black gets first pass preference.
Front end is Eversolo DMP-A8. Speakers are Spatial M4 Sapphires. IC from BJC. Speaker cables are Moon Audio Black Dragon. The Aegir will be replaced eventually but will remain the amp of choice for the foreseeable future. I have some room treatment work to do but believe my budget and setup constraints (furniture and arrangement) will limit improving what is a dead room (20-20K < 300 ms untreated).
Schiit Freya + would be a natural but I don't think it would be a long term keeper. I'm a bit of a Schiit fanboy and like the Aegir but their stacks tend to lean bright to my ears - though that might have been the Bifrost talking because the A8 through the Lyr and Aegir is pretty agreeable.
In the other thread I found the Mapletree Ultra 4CRM and VTA SP14 to be most compelling. The Supratek Chardonnay and Cary Audio SLP-98 also have my attention and have the advantage of variable gain and service within a few hours drive. Given a choice, point to point is my preference but PCB is fine. AVA Fet Valve CFR is in the mix with the DVA SET 500 pwr amp as an attractive next step if I end up caving to silver.
K and K Audio and deHavilland UltraVerve were pulled from this thread but the principals have both retired.
https://www.audiocircle.com/index.php?topic=130631.msg1381402#msg1381402Unless I missed something, the one thing these all have in common, except the AVA, is 6SN7. With limited knowledge I am happy to limit choices to 6SN7 unless there are reasons to consider other tube complements (eg AVA 12AT7/AU7).
I would appreciate any thoughts and recommendations. I've been trying to sort out this pre amp thing for a while and, now that I have half a clue what I'm looking for, the lovely and gracious bride who doesn't get any of it has green lighted it nonetheless.
Thank you.