Hello, sorry for the new thread. I searched this info and am still confused. I am planning on getting the 600w Genz shuttle. Currently I have two 8 ohm Ampeg cabs I would like to keep using. The rating on the cabs are both 300 RMS/600 Programmable. Am I ok to use these cabs going by the 600w programmable wattage? Or will these cabs be too weak for this head?