It's not *meant* to be, but sure, it'll come out. It would then need a head case built to keep it in, or else all the (dangerous) electronics would be exposed.
yeah you can... but i dont see why. the mag combos can be used in conjunction with an extension cab (mag 210t) which would give you the extra punch. i have a mag 600 head with 210 and 115 cabs and sometimes i with i just had the combo version with an extension cab.