I currently use a Peavey MInimax to run both my Avatar 12 and 15 cabs; my "backup" amp, an old Ampeg B2R, died, and I feel insecure without something in reserve. Thinking of getting the Acoustic B300HD for my 4 ohm 15. I always have PA support, and--despite the onus the brand now carries--I think the wattage, size, and weight will work for me in a pinch--especially at 4 ohms. Thoughts?