All classes are using Manufactuers highest RMS rated watts at 12 or 14 volts.
All classes are for 12 volt Batteries only with the exception of the two 16 volt classes.

For trucks requiring truck wedge boxes or under seat vehicle specific boxes.

Open Power

For trunk vehicles that DO NOT have a fold down rear seat or those competitors who chose to leave their rear seats up.

1-1200

1-600
601-1200
1201-2500
2501-UP

1-600
601-1200
1201-2500
2501-4000
4001-6000
6001-UP

1-4000
4001-UP

1-5000
5001-10000
10001-UP

Open Power

1-1200
1201-2500
2501-5000
5001-1000
10001-UP