2007 Rules & Regulations

TABLE OF CONTENTS

Term-PRO Home
Rules Master Index

Section 0 - Introduction
Section 1 - General Rules
Section 2 - Competitor Classification System
Section 3 - Passenger Compartment Regulations
Section 4 - Vehicle Regulations
Section 5 - Auto Sound Equipment Regulations
Section 6 - Installation Regulations
Section 7 - Points Accrual
Section 8 - Certified SPL
Section 9 - World Finals
Section 10 - World Records
Section 11 - Vehicle Audits, Rules Infractions, Penalties
Section 12 - Competitor Code of Conduct
Section 13 - Miscellaneous
Section 14 - Q&A
Section 15 - Definitions

Section 2 - Competitor Classification System
Competitors are classified by the nature of the components in their sound system and the extent to which their vehicle has been modified. For specific limitations regarding vehicle modifications for each division, refer to Sections 3-5 later in this rulebook.
2-1	The dBDRA considers speakers with advertised maximum diameters of 10 inches or larger to be woofers.
2-2	All of the woofers in a vehicle (10 inches and larger) will be counted when determining what class a competitor should compete in. Additional Guidelines: Every woofer in an Isobaric or Compound configuration shall be counted. Hidden woofers (such as those found in Bandpass enclosures) shall be counted. Passive radiators, ports, and vents are not considered to be woofers, and therefore will not be counted as such. If the largest speaker in the contestant's sound system is smaller than 10 inches (25.4 cm) in diameter, then all of the speakers that are being used to produce bass shall be treated as woofers.
2-3	"Token" woofers are strictly prohibited. If a competitor has installed woofers in such a manner as to circumvent the competitor classification system, the competitor may be re-classified or disqualified at the sole discretion of the head judge. Example: A competitor who normally competes in the Super Street 1-2 class shows up at an event and decides that his normal class is too competitive for his taste. In an effort to circumvent the competitor classification system and move up into the Super Street 3-4 class, the competitor borrows 2 woofers and then lays them in the back of his vehicle. Now, there are a total of 4 woofers in the vehicle, even though the 2 woofers he just "installed" are not a legitimate part of the sound system. Activities such as this are strictly prohibited.
2-4	Each competitor may compete in one, and only one class at each dB Drag Racing event. Additional Guidelines: Competitors may not enter the same vehicle in more than one class at a dB Drag Racing event, nor may a competitor enter more than one vehicle at the same show. Competitors may not send out a "fleet" (2 or more) of vehicles to compete in an attempt to circumvent the point's accrual requirements for the World Finals. Competitors must accompany their vehicle at each event. In other words, a competitor may not send his vehicle to an event with a friend in order to compete while he stays at home.
2-5	The standard classes for dB Drag Racing are as follows... Street Division Street A Class - A maximum of 1 subwoofer amplifier (or 2 externally bridged monoblock amplifiers) may be used. A maximum TOTAL of 2 electrical conductors may be used to connect the amplifier(s) to the woofer(s). (Please see the definitions section for more detail regarding conductors.) One 12-inch woofer OR a maximum of two 10-inch woofers OR a maximum of three 8-inch woofers Street B Class - A maximum of 2 subwoofer amplifiers (or 4 externally bridged monoblock amplifiers) may be used. A maximum TOTAL of 4 electrical conductors may be used to connect the amplifier(s) to the woofer(s). One 15-inch woofer OR a maximum of two 12-inch woofers OR a maximum of three 10-inch woofers OR a maximum of four 8-inch woofers Street C Class - A maximum of 4 subwoofer amplifiers (or 8 externally bridged monoblock amplifiers) may be used. A maximum TOTAL of 8 electrical conductors may be used to connect the amplifier(s) to the woofer(s). One 18-inch woofer OR a maximum of two 15-inch woofers OR a maximum of four 12-inch woofers OR a maximum of six 10-inch woofers OR a maximum of eight 8-inch woofers Additional Guidelines for the Street Division: Amplifiers used for non-subwoofer applications will not be counted. Amplifiers that are constructed in such a way as to circumvent the amp quantity limitation may be prohibited from use in this division or may count as multiple amplifiers. (Please see Section 14 for more information on amplification.) Cargo vans and commercial vehicles are prohibited from competing in the Street Division. Street Max Division Street Max 1-2 Class - 1-2 Woofers. A maximum of 2 subwoofer amplifiers (or 4 externally bridged monoblock amplifiers) may be used. A maximum TOTAL of 4 electrical conductors may be used to connect the amplifier(s) to the woofer(s). Street Max 3-4 Class - 3-4 Woofers. A maximum of 4 subwoofer amplifiers (or 8 externally bridged monoblock amplifiers) may be used. A maximum TOTAL of 8 electrical conductors may be used to connect the amplifier(s) to the woofer(s). Additional Guidelines for the Street Max Division: Amplifiers used for non-subwoofer applications will not be counted. Amplifiers that are constructed in such a way as to circumvent the amp quantity limitation may be prohibited from use in this division or may count as multiple amplifiers. (Please see Section 14 for more information on amplification.) Super Street Division Super Street 1-2 NW Class - 1-2 Woofers, No Wall Super Street 1-2 Class - 1-2 Woofers Super Street 3-4 Class - 3-4 Woofers Super Street 5+ Class - 5+ Woofers Extreme Division Extreme 1 Class - 1 Woofer Extreme 2 Class - 2 Woofers Extreme 3-4 Class - 3-4 Woofers Extreme 5+ Class - 5+ Woofers Monster Division Monster Class The classes listed above are the recommended standard classes for dB Drag Racing. Typically, all of these classes will be offered at multi-point events. However, if there are fewer than 4 entries in a given class, or if the event is a single-point event, the show promoter may, at his discretion, combine one or more classes in order to fully populate the elimination brackets. In any case, the number of classes offered, and their specific breakdown, is at the discretion of the show promoter.