A lot of member in this forum own high efficiency speakers ( + 100 Db/W/Meter).
Therefore, for a domestic use the power of the amplifier could be limited to 15 or 20 watts.
So watt is your views and personal experiences with single ended valves amplifiers using 300B,2A3, 211,845….. and with low powered class A amplifiers in relation to high power amplifiers ( Crest,Mc Intosh, Crown….) ?