What's even the point of the extra speakers? Are those going to be sitting on the sideline behind our team directed at our bench? If they're pointing towards the crowd then who gives a shit; I'd love to understand the placement of those.
And i believe the rule is that you can't pump in artificial noise while the team is lining up preparing to snap the ball on offense. This is the only thing in the rules I could find quickly and I'm not sure this is even accurate:
"Artificial crowd noise, by conference policy or mutual consent of the institutions, is allowed. The noise level must be consistent throughout the game for both teams. However, all current rules remain in effect dealing with bands, music and other sounds. When the snap is imminent, the band/music must stop playing. As with all administrative rules, the referee may stop the game and direct game management to adjust."