dB Drag Racing Class Matrix Reference
Κατηγορία Normal Χρήση Αλλαγές Αυτοκινήτου Αρ. Woofer Τοίχος
Street Stock 1K Παντού OK 1 No
Street Stock 2K Παντού OK 1-2 No
Street Stock 4K Παντού OK Απεριόριστα* No
Street Trunk Εμπρός από το Πορτ-Μπαγκάζ No Απεριόριστα* No
Street A Παντού No 1-4* No
Street B Παντού No 1-8* No
Super Street NW Μπροστά από την κολόνα (B-Pillar) No Απεριόριστα No
Super Street 1-2 Μπροστά από την κολόνα (B-Pillar) OK 1-2 OK
Super Street 3-4 Μπροστά από την κολόνα (B-Pillar) OK 3-4 OK
Super Street 5+ Μπροστά από την κολόνα (B-Pillar) OK 5+ OK
Extreme Εξαιρείτε OK Απεριόριστα OK
Κατηγορία Αρ.Επαφών Max Ενισχυτές Podium Pro / Veteran
Street Stock 1K 4 ανά sub 1000 W Clamp No No
Street Stock 2K 4 ανά sub 2000 W Clamp No No
Street Stock 4K 4 per sub 4000 W Clamp No No
Street Trunk 4 ανά sub 4000 W Clamp No OK
Street A 2 Συνολικά 1* No OK
Street B 4 Συνολικά 2* No OK
Super Street NW 8 Συνολικά* 4* OK OK
Super Street 1-2 4 ανά sub Απεριόριστοι OK OK
Super Street 3-4 4 ανά sub Απεριόριστοι OK OK
Super Street 5+ 4 ανά sub Απεριόριστοι OK OK
Extreme 4 ανά sub Απεριόριστοι OK OK
Κατηγορία Αρ. Μπαταριών Μέγεθος Μπαταριών Battery Box Αρ, Πυκνωτών
Street Stock 1K 2 Standard 800 in^3 No Απεριόριστοι
Street Stock 2K 2 Standard 800 in^3 No Απεριόριστοι
Street Stock 4K Απεριόριστοι Standard 800 in^3 No Απεριόριστοι
Street Trunk Απεριόριστοι Standard 800 in^3 No Απεριόριστοι
Street A 1 Standard 800 in^3 No 2F
Street B 2 Standard 800 in^3 No 2F
Super Street NW Απεριόριστοι Απεριόριστοι No Απεριόριστοι
Super Street 1-2 Απεριόριστοι Απεριόριστοι OK Απεριόριστοι
Super Street 3-4 Απεριόριστοι Απεριόριστοι OK Απεριόριστοι
Super Street 5+ Απεριόριστοι Απεριόριστοι OK Απεριόριστοι
Extreme Απεριόριστοι Απεριόριστοι OK Απεριόριστοι
Κατηγορία Αρ. Δυναμό Max Volts Λειτυργία Κινητήρα Οριο Συχνότητας Hi
Street Stock 1K Απεριόριστοι 12 (15 Max) OK 60 Hz
Street Stock 2K Απεριόριστοι 12 (15 Max) OK 60 Hz
Street Stock 4K Απεριόριστοι 12 (15 Max) OK 60 Hz
Street Trunk Απεριόριστοι 12 (15 Max) No 60 Hz
Street A 1 12 (15 Max) No 60 Hz
Street B 1 12 (15 Max) No 60 Hz
Super Street NW Απεριόριστοι 18 Max OK 80 Hz
Super Street 1-2 Απεριόριστοι 18 Max OK 80 Hz
Super Street 3-4 Unlimited 18 Max OK 80 Hz
Super Street 5+ Απεριόριστοι 18 Max OK 80 Hz
Extreme Απεριόριστοι 18 Max OK 80 Hz

Class Matrix Notes

Street Stock Division

  • Street Stock 1K – The maximum power output of the system is limited to 1000 Watts RMS.
    Only one woofer (any size) may be used.
  • Street Stock 2K – The maximum power output of the system is limited to 2000 Watts RMS.
    One or Two woofers (any size) may be used.
  • Street Stock 4K – The maximum power output of the system is limited to 4000 Watts RMS.
    An unlimited number of woofers (any size) may be used.

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

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 an approved power clamp meter to verify compliance during competition. If power meters are not available, 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.
  • Trunk Vehicle – A vehicle with a closed compartment that is separate from the passenger compartment. Sedans are a good example of a trunk vehicle because the trunk area is separate from the passenger compartment and a steel trunk lid must be opened to access the trunk compartment.
  • 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