WWE Hall of Famer "Stone Cold" Steve Austin recently did an interview with IGN and talked about how important it is to have speakers on the ring aprons:

"When you go to a place like Toronto, the Sundome, the acoustics aren't real good in that place," Austin said. "You can be in there - this actually happened to us in Detroit, when I was refereeing the match between Vince's side and Trump's side - and you think you're stinking up the joint because you can't hear anything. You need those speakers on the ring apron. [In Detroit] we thought we were s***ing the bed out there.

"That's more on specific, trickier buildings though. On 20,000 seaters versus 70,000 seaters, a couple hours before when you see the setup, it's certainly awe-inspiring, but as far the work goes, as long as the acoustics are good, it's all the same."