Hello, I currently have an Ampeg SVT-4PRO, but at 42 pounds by itself (along with the case and surge protector/light strip) it is tough on my back. This combo sounds awesome, but I've seen plenty of high powered heads out there that weigh under 25 pounds. So my question is, anyone got tips on a good head to power this amazing (light weight) cabinet with? I'm not playing stadiums, but I do need to fill up a medium sized bar without running through the PA. Thanks! -E.