8
Different Competition Classes
Trunk SPL - First-time competitors with rear trunk passenger cars.
Power Classes by wattage (Stock 0-500, 501-up and Modified unlimited
wattage)
Beginner SPL - First-time competitors with no walls
and rear seat installed. Power Classes by wattage. Beginner Car (0-500,
501-up) Beginner Truck/S.U.V. (0-500, 501-up)
Regular Cab Truck - First time competitors with Regular
Cab Pick-Up Trucks
Amateur SPL - Seasoned competitors not affiliated
with the 12-volt industry. Power Classes by wattage
(0-1200, 1201-2400, 2401-up) Hardcore - (0-2400, 2401-up)
Pro SPL - A competitor who works in the industry
of electronics. Power Classes by wattage (0-1200,
1201-2400, 2401-up) Hardcore - (0-2400,
2401-up); Pro No Wall - (unlimited)
Unmodified Speaker SPL - Competitors classed
by the number of woofers in the vehicle.
(0-30" No Wall, O-30", 31"-60", 61"-up)
Modified Speaker SPL - Competitors with extremely
modified vehicles classed by the number of
speakers in the vehicle. (0-30",
31"-60", 61"-up)
Insane SPL - Competitors with Insanely-Modified
vehicles; No power classes
