Anyone drive theirs with a 20 watt tube amp?

I run a 22 watt SET tube amp based on the 845 tubes. Have 4 ohm taps no problem.

Looking at impdence and phase charts, looks like an easy load but I'm not an expert.

Anywone actually use a tube amp around 20 watts or less to drive either speaker as their primary amp?

Thanks,
UL