i just received one of these conversions back from James & Co today. It is freaking fantastic sounding. Sitting on top of a Berg AE212, the rig kind of sounds like a miniature SVT. Has that "grunt" if you know what I mean. The amp does get warm. I'm interested to hear if any other TB'ers are gigging one of these conversions, and whether you have run into any thermal issues. No fan and a real 800 W sounds to me like something's gotta give. Hope I'm wrong.