Member's recommendations for tube amplification

Your thoughts on options to consider:

- I'd prefer SET (open to DHT but not a requirement).

- I'm not looking for overtly warm, romantic or lush options.

- Minimum power in the teens to twenties, 10W being the floor.

- Open to higher power push-pull amps, but let's limit ceiling to around 60W.

- Single ended is fine though having XLR inputs would be nice (doesn't have to be true balanced)

- I'm cool with single chassis or monos.

- I have preferences for tube types, but leaving it open ended to get broad recommendations.

- I'm currently running an all solid state system, though have had tube based systems built around ARC, BAT, Ayon, Melody, Pathos, etc.

- Preamp will be a Pass XP-20 or the Metrum Adagio DAC direct to the amp.

- I'd like to stay around 3K used but can push the budget to 6K new/used.

- Speaker sensitivity is 94dB and higher.

THANKS!