CEDAR RAPIDS, Iowa, Sept. 4 (UPI) -- The upcoming "Crank It Up" event in Cedar Rapids, Iowa, offers a chance to create the loudest so-called "burp" from a car's stereo system, a resident says.

Nathan Flatgard, owner of Automotive Electronics in Cedar Rapids, said the event is focused on a little-known sport called bass boxing, which features car owners attempting to create the loudest burp, or sonic blast, from a car's sound system, The Des Moines (Iowa) Register said Friday.

"For spectators, it might not be as loud as auto racing or a multi-engine tractor pull, but for anyone inside the car, it's an entirely different story," Flatgard said of Saturday's scheduled competition.

Get Loud Productions promoter Adam Prange said he hopes the unusual competition will draw as many as 30 competitors, all vying for the chance to make it the Sept. 18-20 national finals.

Prange told the Register most competitors take the event very seriously.

"There's a lot of research, testing and design involved," he said. "Then again, we had one guy who was in the finals in his class last year with a $250 setup from Wal-Mart."