Hello, I am a new bass player. I've been playing for about a month now, every day, and I'm just wondering about my amp. I have a Fender BXR Fifteen so I guess it is considered a 15 watt amp, but it says 45W on the back. Is this the power consumption and if so, why is it called a 15 watt amp? I know it's a pretty small amp and doesn't get extremely loud, but would it ever be possible to do a really small gig with it?