Division	World Finals	Normal Use	Vehicle Mods	Woofers	Walls	Maximum Conductors	Amps	Battery Qty	Battery Size	Battery Box
Bass Race 120 - 129.9	Yes
Bass Race 130 - 139.9	Yes
Bass Race 140 - 149.9	Yes
Bass Race 150+	Yes
Street Stock	Yes	B-Pillar fwd	Yes	Unlimited	No	4 per sub	2000 Watts Total	1	800 in^3	No
Street Trunk	Yes	Trunk Fwd	No	Unlimited	No	4 per sub	4000 Watts Total	2	800 in^3	No
Street A	Yes	Everywhere	No	1-4 *	No	2 Total	1 *	1	800 in^3	No
Street B	Yes	Everywhere	No	1-8 *	No	4 Total	2 *	2	800 in^3	No
Super Max	Yes	B-Pillar fwd	No	1-4	OK	4 Total	2 *	1	800 in^3	No
Super Street No Wall	Yes	B-Pillar fwd	No	Unlimited	No	8 Total	4 *	Unlimited	Unlimited	No
Super Street 1-2	Yes	B-Pillar fwd	Yes	1-2	OK	4 per sub	Unlimited	Unlimited	Unlimited	Yes
Super Street 3-4	Yes	B-Pillar fwd	Yes	3-4	OK	4 per sub	Unlimited	Unlimited	Unlimited	Yes
Super Street 5+	Yes	B-Pillar fwd	Yes	5+	OK	4 per sub	Unlimited	Unlimited	Unlimited	Yes
Extreme	Yes	Not Required	Yes	Unlimited	Required	4 per sub	Unlimited	Unlimited	Unlimited	Yes

*Street Stock Division

• 2000 Watts Max

Street Division

• Street Trunk – No woofer quantity limit (Maximum 4 conductors per sub) - No amplifier quantity limit (Maximum 4000 Wrms total) - All amplifiers and woofers must be installed within the trunk
• Street A – 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 B – 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

Glossary of Terms

• Alts – Number of alternators permitted
• 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.
• Run – Vehicle may be running during competition (Maximum RPM is limited to 2000.)
• Standard Battery – 12-volt, 6-cell (connected in series), lead-acid or gel-type battery.
• Vehicle Mods – Structural vehicle modifications permitted
• Volts – Battery voltage (value in parenthesis indicates maximum voltage in the lanes)
• Walls – Walls are permitted
• Woofers – Number of woofers allowed

 

Bass Race