Lot's of good info in the responses. As a tube amp designer my 2 cents worth is that no mention of power supplies yet--and that is also a very key factor. An excellent choke driven power supply can deliver instantaneous power which can be much more important than total RMS power. Every amp is different and a 10W tube amp might outperform a 100SS amp, or the reverse depending on the total design.
I once built a custom guitar amp for lead jazz guitarist which could only deliver 4-5 watts of continuous RMS power. However, due to the design, it outperformed a 25 watt Fender amp and became his favorite gig amp.
try it and let your ears be the judge
I once built a custom guitar amp for lead jazz guitarist which could only deliver 4-5 watts of continuous RMS power. However, due to the design, it outperformed a 25 watt Fender amp and became his favorite gig amp.
try it and let your ears be the judge