Correction... It seems that the little combo amp is a 20 Watt because I just noticed the thing on the back that said 20 watt RMS. So that would mean that it goes from 20 watts down to 5 watts. Then I reasoned that if that one had a marking like that on the back, then the big one might also say something like that too. Indeed it did. 100 watts RMS. Which is cool because for a long time I thought it was a 50 watt amp.