Best way to measure an Amp's power capability


Hello Everyone, 
As we all know not all watts are created equally. A 1,000 watt amp from brand A can be trounced by a 100 watt brand B amp. 

So what is the best way of telling if an amp is high current just by reading the specs or may be by looking at the inside of an amp?

What should one look for?

Thanks in advance! 
danimaz

Showing 1 response by millercarbon

What should one look for?

Wrong question. What should one listen for.
But you kids are having so much fun. Don't mind me.