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 danimaz

Awesome replies and very helpful. You are right. Its just hard to audition now a days but when I do I plan on listening to an amp at very low volumes FIRST. If the sound has PRAT with dead black background and good control then it's a good powerful amp .. i think...