I'm interested in making sure whatever I end up with has both ultralinear and triode modes.Do you mean ultralinear and pentode modes? Ultralinear is sometimes used interchangably with triode, although the two are not precisely the same.
Mightyburner
My VAC Phi 110/110 had both pentode and ultralinear, as does my Eastern Electric M520 (remote switchable), presently for sale.
The Rogue Cronus does not offer triode/ultralinear and pentode modes, and having to rewire the unit on the inside of the amp to switch to 4 ohm speaker taps seems to be a PITA, IMO.