NSPL
Full Rule book: https://bit.ly/2UoOhPp
Facebook Page: https://www.facebook.com/pg/NationalSoundPressureLeague/
Unlimited SPL Formats
Beginner – (0-24 inches, 25-48 inches)
Trunk – (0-2500 watts) Clamped Power
Trunk – (2501-up watts) Clamped Power
Car/Truck-(0-2500 watts) Clamped Power
Car/Truck-(2501-up watts) Clamped Power
No Wall-(0-24 inches, 25-48 inches, 49-up inches)
No Wall (0-5000 watts) Clamped Power
Wall-(0-30 inches, 31-60 inches, and 61-up inches)
Wall-(0-5000 watts, 5001-10,000 watts) Clamped Power
Wall Modified-(1-2 woofers, 3-up woofers)
Insane SPL- (1-2 woofers, 3-up woofers)
Hardcore SPL Formats
Trunk Hardcore
Car/Truck Hardcore
No Wall Hardcore (0-24 inches, 25-up inches)
Wall Hardcore (0-60 inches, 61-up inches)
SPL Eliminator Formats (Music 30 second Average)
The Eliminator format is a SPL competition where the competitor must use music no test tones. The term-lab will be set to measure the spl in a 30 second average format.
No Wall (0-24 inches, 25-48 inches, 49-up inches)
Wall (0-60 inches, 61-up inches)
Bass Zones (States)
Northeast (New York, Connecticut, Pennsylvania, New Jersey, Maryland, Delaware, Washington, D.C.)
New England (Maine, New Hampshire, Vermont, Massachusetts, Rhode Island)
Mid-Atlantic (West Virginia, Virginia, North Carolina, South Carolina, Tennessee, Kentucky)
Southeast (Georgia, Florida, Alabama, Mississippi)
Great Lakes (Ohio, Indiana, Michigan, Illinois, Wisconsin, Minnesota)
North Central (North Dakota, South Dakota, Wyoming, Montana)
Mid-West (Nebraska, Iowa, Missouri, Kansas)
South Central (Oklahoma, Arkansas, Texas, Louisiana)
South West (New Mexico, Arizona, Colorado, Utah)
North West(Washington, Oregon, Idaho, California, Nevada)
Pacific\North (Hawaii, Alaska)
