Okay I am just starting out as a bass player, though i have been playing living room jams with my guitar for over 10 years. I need to buy a bass amp as I joined a Rock band and we hope to start practicing soon. With future gigs in mind i need to pick an amp that is SMALL but POWERFUL. I am thinking of the SWR Workingman's 10. That amp is 80 watts; is that enough for medium sized venue? I ride a vespa so i need to strap the amp onto my heavyduty backpack w/o dislocating my shoulders. Okay i know your laughing now. Let it all out. Laughter is good for us. Anyway any recommendations?