I'm considering pairing (i.e., buying) a GK MB500 with an Epifani UL2 110 cabinet to boost the volume of my bass for small gigs. The Epi cab is rated 250 watts WRMS@8 ohms (with a 500 watt peak.). The GK is rated 350 watts @8 ohms (and 500 watts @ 4 ohms). At 8 ohms each, will I be overdriving the 250 watt cabinet with a 350 amp? I've also thought about using the MB200 (with 140 watts @ 8 Ohms) with the Epi but that combination strikes me as underpowered (140 watts driving a 250 watt cab). I've also considered pairing the MB500 with the Epi UL2 12 (350 watts @8 ohms) for a better amp-cab impedence match, but the added weight and size of the cab (and the additonal cost) make me hesitate here. Thanks. All thought and suggestions would be greatly appreciated.