"The Loudest Sporting Event in the World"

The N.S.P.L. (National Sound Pressure League) is an organization that is set up to provide a safe and exciting SPL competition format, that serves as a sport for youth and people of all ages. This format contains a level for every competitor from the first-timer to the seasoned veteran.

The 10 different levels are designed to develop the opportunity to win for every competitor, by being classed with their same-powered peers. The mission of N.S.P.L. is to help the 12-volt industry by supporting the people who contribute to its growth such as consumers, retailers, and manufacturers

 

 

 

The NSPL recognizes outstanding achievement through records for the loudest vehicles by division and power class.

The records are set on 3 levels such as State, National, and World. Points championships are awarded to competitors with the most trophy points.

Qualification for finals is determined by the amount of trophy points collected by members during the season. A competitor must accumulate 50 points to qualify for the World Finals. The points system break down is according to where you finish and whether the show is a Regular or Real Deal event.
 

NSPL Different Competition Classes

 

SPL Classes -
     
Beginner 0-1000 watts -Based on Max Clamped Pwr for first time competitors to run for one season
     
Beginner 1001-1800 watts -(1-Extra Battery, 1-run of 4 ga pwr wire)
     
Trunk 0-1800 watts -Cars with rear Trunk Storage Area, Seats/Arm rest may be folded down. (1-extra battery, 1-run of 1/0 pwr wire)
     
Trunk 1801-3600 watts -(2-extra batteries, 2-runs of 1/0 pwr wire)
     
Trunk 3601-up watts -(3-extra batteries, 3-runs of 1/0 pwr wire)
     
Trunk Hardcore -Hardcore sensor placement, windows can be rolled down, doors can be opened.
     
Car 0-1800 watts -Cars with hatchbacks, and rear fold down seats.(1-extra battery, 1-run of 1/0 pwr wire)
     
Car 1801-3600 watts -(2-extra batteries, 2-runs of 1/0 pwr wire)
     
Car 3601-up watts -(3-extra batteries, 3-runs of 1/0 pwr wire)
     
Car Hardcore -Hardcore sensor placement, windows can be rolled down, and doors can be opened)
     
Truck/SUV 0-1800 watts -Quad/Extra Cab Trucks, SUV's, Van's must have rear seat.(1-extra battery, 1-run of 1/0 pwr wire)
     
Truck/SUV 1801-3600 watts -(2-extra batteries, 2-runs of 1/0 pwr wire)
     
Truck/SUV 3601-up watts -(3-extra batteries, 3-runs of 1/0 pwr wire)
     
Truck/SUV Hardcore -Hardcore sensor placement, windows can be rolled down, and doors can be opened.
     
Regular Cab Truck 0-1800 watts -Regular Cab pick-up trucks. (1-extra battery, 1-run of 1/0 pwr wire)
     
No Wall 0-24" -Non-walled vehicles, no rear seats, trucks with cut throughs below the window level. (1-Amp per sub, 1-Extra battery per amp)
     
No Wall 25"-48" -(1-Amp per Sub, 1- Extra battery per amp)
     
No Wall 49"-up -(1-Amp per Sub, 1-Extra Battery per amp)
     
No Wall Hardcore 0-24" -Hardcore sensor placement, windows can be rolled down, and doors can be opened (1-Amp per sub, 1-Extra battery per amplifier)
     
No Wall Hardcore 25"-up -(1-Ampliifer per sub, 1-Extra Battery per amp)
     
Wall 0-2500 watts -Vehicles with walls of Subs, based on amplifer's Max Clamped output power.
     
Wall 2501-5001 watts -Amplifier's Max Clamped output power.
     
Wall 5001-10,000 watts -Amplifier's Max Clamped Output Power
     
Wall 10,000-18,000 watts -Amplifier's Max Clamped Output power
     
Wall 18,000 watts and up -Amplifier's Max Clamped Output Power
     
Wall Hardcore 0-5000 watts -Hardoce Sensor placement, windows can be rolled down, and doors can be opened.
     
Wall Hardcore 5001-10,000 watts -Hardcore sensor placement
     
Wall Hardcore 10,001 watts and up -Hardcore sensor placement
     
Modified One -(1-Sub Max, Wattage Unlimited)
     
Modified Two -(2-Subs Max, Wattage Unlimited)
     
Modified Three-Four -(3 to 4 subs, Wattage Unlimited)
     
Modified Five + -(5 subs or more, Wattage Unlimited)
     
Insane -Enclosures Built up to 8 inches beyond the B-pilar.
     
Terms of Use | Privacy Policy | Contacts | top ^ © 2004, NSPL Competition