I suppose this could also be a 1x12 vs 4x8 inquiry. I'm in the market for one of the amps in the title. I've owned a few YGM3s, but I'm wondering if anyone has any opinions on a single 12" vs four 8" speakers? Or has any experience with both amps. What are the sound differences, generally speaking? I'd be curious about anyone's feedback who has spent time with either or both configurations.