NSPL175
Classes (Peak SPL using test tones or Music)

Beginner 0-24 inches 1-amplifier(1200 watt Max Rating), 1-extra battery, 1-farad cap, 12/14 volt limit
Beginner 25-48 inches 2-amplifier(2400 watt Max Rating), 2-extra battery, 2-farad cap, 12/14 volt limit

Trunk 0-1800 watts (clamped power) 1-run of 1/0, 1-extra battery, 1-farad cap, 12/14 volt limit
Trunk 1801-3600 watts (clamped power) 2-runs of 1/0, 2 extra batteries, 2-farad cap, 12/14 volt limit

Car/Truck 0-1800 watts (clamped power) 1-run of 1/0, 1-extra battery, 1-farad cap, 12/14 volt limit
Car/Truck 1801-3600 watts (clamped power) 2-runs of 1/0, 2 extra batteries, 2-farad cap, 12/14 volt limit

No Wall 0-24 inches 1-extra alternator, unlimited batteries, unlimited amplifiers, 16/18 volt limit
No Wall 25-48 inches 1-extra alternator, unlimited batteries, unlimited amplifiers, 16/18 volt limit
No Wall 49-up inches 1-extra alternator, unlimited batteries, unlimited amplifiers, 16/18 volt limit

No Wall Hardcore 0-24 inches 1-extra alternator, unlimited batteries, unlimited amplifiers, 16/18 volt limit
No Wall Hardcore 25-up inches 1-extra alternator, unlimited batteries, unlimited amplifiers, 16/18 volt limit
No Wall 0-5000 watts (clamped power) 1-extra alternator, unlimited batteries, unlimited amplifiers, 16/18 volt limit
No Wall 5001-10000 watts (clamped power) 1-extra alternator, unlimited batteries, unlimited amplifiers, 16/18 volt limit

Wall 0-30 inches 2-extra alternator, unlimited batteries, unlimited amplifiers, 16/18 volt limit
Wall 31-60 inches 2-extra alternator, unlimited batteries, unlimited amplifiers, 16/18 volt limit
Wall 61-up inches 2-extra alternator, unlimited batteries, unlimited amplifiers, 16/18 volt limit
Wall Hardcore 0-30 inches 2-extra alternator, unlimited batteries, unlimited amplifiers, 16/18 volt limit
Wall Hardcore 31-60 inches 2-extra alternator, unlimited batteries, unlimited amplifiers, 16/18 volt limit
Wall Hardcore 61-up inches 2-extra alternator, unlimited batteries, unlimited amplifiers, 16/18 volt limit
Wall 0-5000 watts (clamped power) 2-extra alternator, unlimited batteries, unlimited amplifiers, 16/18 volt limit
Wall 5001-10000 watts (clamped power) 2-extra alternator, unlimited batteries, unlimited amplifiers, 16/18 volt limit

Insane 0-60 inches Extreme vehicle Mods, unlimited alternators, unlimited batteries, unlimited amplifiers, 16/18 volts limit
Insane 61-up inches Extreme vehicle Mods, unlimited alternators, unlimited batteries, unlimited amplifiers, 16/18 volts limit


Classes (30 second average playing Music)

Eliminator 0-24 inches 12/14 volt limit
Eliminator 25-48 inches 12/14 volt limit
Eliminator 49 inches 12/14 volt limit

Eliminator Wall 0-60 inches 16/18 volt limit
Eliminator Wall 61-up inches 16/18 volt limit

King of Streetbass (2-sensors one on the window, one 4 feet from the vehicle above the window level, average the two scores for final score)
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