I see nothing more than a "rumor", or what someone "thinks".
Both models sport a Yamaha FM YM2612 chip, I starting to get the sense that this is like arguing the difference between a Pentium 4 .90nm chip vs a Pentium 4 .45nm where the later has been made much smaller, cost reductive for the company manufacture, provides the same if not better performance (model 2 stereo over model 1 mono sound), and is cheaper to the consumer.
:mad:

