It’s an interesting point. We’ve discussed this in the club before, in connection with the Ampeg Portaflex series. I believe the conclusion was that if the amp is mounted to the cab, it fulfils the requirements for a combo, at least in theory. There are several combos where the amp itself is removable, for instance the TC Electronic Combo 450, or some of the older Promethean systems. That’s no different in principle from the Genzler Magellan, although the Genzler looks decidedly less «comboesque», if that’s a word.