I like Sean,Rl,Viris comments and would ad that regardless of tube/ss when an amp is capable of X watts/ch RMS it is capable of a different number of watts for an instantanious peak. A better amp can do a peak perhaps 50-100% above the rated RMS power. This is based on a better power supply and design, etc. Music is peaks. Not steady. Then there are Class design differences too. There are a lot of factors involved. Good luck!
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