Quoted from markmon:It's possible that they upgraded the sound samples that they feed into the game. But the sound system itself is basically the same. I'd say that the two 4" stern/Sega/data east use are far superior to the 5 and 3" combo in the Williams. The cheap 8" in the cabinet in sterns is far better than the cheap 6" in the williams cabinets. I always upgrade the sound systems and have been very pleased with how the sterns turn out with a sub woofer.
Now if you want to support your claim of non innovative,why isn't the sound in stereo? Why is there not an iPod type headphone jack on the front? Why can't in game music stream from USB or iPods? That may have better supported your claims
If Stern so much as made the pins with stereo sound or even a walkman headphone jack it would be the greatest innovation they have made in ages....