I was wondering when the wattage subject woul come up . You will probably find a higher wattage will give you more clean headroom as the amp is not being pushed as hard , I have looked this subject up on the net and the answers vary, so it can be a bit confusing . The bigger the number of speakers you have , the more air you are going to move . I have an Egnater Rebel 30 running a Mesa 1x12 cab . The Egnater has variable wattage for each channel (1-30) and and you can change the output valves between 6v6's and el84's or a combination of both . At home I have it set at 1 watt on both channels and cranked up , it is bloody loud ! According to the Egnater manual , if you double the wattage , you gain about 3 decibels in volume , In saying that , decibels is a strange measurement and I am not sure of the formula , For example , if you have a jet engine revved up , putting out 100 db , and then add another 3 jet engines revved up , it doesn't mean your will have 400 db . The company Iused to work for did industrial sound control , the test rig was powered by a 3000 watt amplifier powering a multitude of speakers , putting out 135db of white noise ( ear splitting and painful ) . After going through 10 meters of special insulation and soundwave splitters , the end level on one test was 70 db . So sound is a funny thing . In the end , the choice is yours , it is what you like . You can get a smaller amp and push it hard ( put a mike in front ) or have a big amp idling away . Hope this helps.