Still, this X2 definitely sounds promising. It's funny that the vehicles are often the problems in operations. For example, Test Track's cars to this day still experience problems more frequently than they should, and the Minis at Lights, Motors, Action! destroy their tires daily. Both rides were given custom tires to save time and money.
Disney's on ride sounds like an AM radio because with the wind and track noise, the only frequencies that really cut through are the hi-mids, which is what are prevalent in AM. The trick isn't just in the sound system, it's harnessing what other sounds one hears on the ride. A noise cancelling earphone system would be the trick, although that would be gross after a while with people sharing....unless they used the in-ear systems that are used by musicians on stage. They have removeable molds. Or they could install 1/8" headphone jacks and sell a pair of phones that would be safe to ride with. The headphone thing would need a solution that would satisfy safety (and health) requirements.
X2 will be an improvement... as long as they keep all of the bells and whistles operating properly.