R15 Predator is telling the pure unvarnished truth. If any of you guys want to hear the difference, set a Mighty Atom and a Krakatoa II down with the Mighty Atom closer to you. Turn the Mighty Atom up as loud as possible, and then turn the Krakatoa II on and gradually bring up the volume until it drowns out the Mighty Atom, all done with total clear sound. And you can program your own caller. Finally, the TX-1000 remote that comes with the Krakatoa II is so far superior to the Mighty Atom remote in every aspect.