I have been wanting to try using a tube amp.

ralph aka atmasphere asked the critical question... what speakers?

really depends on that...

from hifi news lab test

"We weren’t quite able to confirm Focal’s claimed sensitivity for the Kanta No3 of 91dB, our pink noise and ’music’ figures of 89.9dB and 89.5dB SPL respectively for 2.83V at 1m suggesting that 1dB lower (or 90dB) is a more realistic figure. We’ve often seen Focal resort to low impedance to achieve high sensitivity from its speakers and it’s no different here. While quoting an 8ohm nominal impedance Focal admits to a minimum of 3ohm, suggesting rather a 4ohm nominal rating. We measured a slightly lower minimum of 2.9ohm and large impedance phase angles at low frequencies which together reduce the EPDR (equivalent peak dissipation resistance) to a punishing low of 1.2ohm at 82Hz. So the Kanta No3 is not a speaker to partner with amplifiers at all reticent about delivering high current."

sometimes people make posts about what tube amps can drive what speakers... and really don’t have the facts, nor a clue (scott and ralph excepted, of course... 🙏 )