@highend64 i have had all sorts of amp on a 2C.
- PSE (SS)
- VTL compact 100 (EL34)
- NAD 3040 (SS)
- PrimaLuna (EL 34)
- AIYAMA Class-D)
They all sounded pretty good… even the $70 AIYAMA was good enough.
The PrimaLuna Dialogue Premium HP was $2k used, and the main thing I don’t like is that the Mrs has to turn it on with a tie poke of the switch… and a trigger, and balanced XLR.
But I have been considering Class-D (Like the Atmasphere amp which is beyond the $2k budget) or a Purifi derivative.
Your speaker is easy to drive… any in your list will likely sing fine.