No Commercial Vehicles, Vans, CRX's, or Panda's (and Panda derivates such as Marbellas and Yugos)
Street Stock A – 1000 Watts Max
Street Stock B – 2000 Watts Max
Street Division
Street A – 1-12 or 2-10’s or 3-8’s / Maximum of 1 amp – 2 Conductors total between amp rack and sub enclosure
Street B – 1-15 or 2-12’s or 3-10’s or 4-8’s / Maximum of 1 amp (or 2 monoblock amplifiers) – 2 Conductors total between amp rack and sub enclosure
Street C – 1-18 or 2-15’s or 4-12’s or 6-10’s or 8-8's / Maximum of 2 amps (or 4 monoblock amplifiers) – 4 Conductors total between amp rack and sub enclosure
Street Max Class
Maximum of 2 amps (or 4 monoblock amplifiers) – 4 Conductors total between amp rack and sub enclosure
Super Street NW Class
Maximum of 4 amps (or 8 monoblock amplifiers) - 8 Conductors total between amp rack and sub enclosure. Maximum 4 conductors per sub
Extreme OS
No "Bandpass" interiors
Walls must be "Flat", "V-Shaped", or "W-Shaped"
A minimum seperation of 12-inches is required between the center console and the wall
Subs must be symmetically installed along the centerline of the wall
Glossary of Terms
Alts – Number of alternators permitted
Amateur - Anyone who is not a "Pro" (see below)
Amps – Maximum number of physical amplifiers permitted
Battery Box – Battery box permitted
Battery Qty – Maximum number of batteries permitted
Battery Size – Physical size limits for each battery in cubic inches
Caps – Number of Farads permitted
Maximum Conductors – Maximum number of electrical conductors between the amplifier(s) and the sub enclosure. A normal speaker wire is composed of two conductors; 1 for positive and 1 for negative.
Normal Use – Normal use restriction applies
Podium – Podium use permitted
Power - When amplifier power limits are specified, the dBDRA will use the maximum published RMS rating for the amplifier. The dBDRA reserves the right to verify the accuracy of any published rating.
Pro - Anyone who is employed in the auto sound industry. Anyone who is sponsored by someone in the auto sound industry. Anyone who is related to someone in the auto sound industry. Anyone who has competed as a pro in the past.
Run – Vehicle may be running during competition
Standard Battery – 12-volt, 6-cell (connected in series), lead-acid or gel-type battery.
Veteran - A contestant who has finished any preceding season with a "Top 3" Certified Score ranking or who has participated in any previous World Finals.
Volts – Battery voltage (value in parenthesis indicates maximum voltage in the lanes)
Walls – Walls are permitted
Woofers – Number of woofers allowed
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