I'm wondering if anybody has run their db through the new yamaha bbt 550 head or combo (1x10 or 1X15). Any impressions or thoughts are welcome. The appeal to me is that it has a "flat" setting but still has some pretty furry presets (I play jazz but also the weirder stuff). Certainly eden or gk are on the wish-list but are a little out of reach right now. ted harms.