2020 dB Drag rules

Rules

1•      General information.

    • dB Drag competition is a competition of car audio systems, in which participants compete with each other to find out whose car audio equipment causes the greatest pressure in the car.
    • Sound pressure measurements are monitored and recorded with an original US-made Term-Lab device for dB Drag racing.
    • During the competition, participants must pay close attention to the safety of other participants, judges and spectators, so everyone must clearly understand and follow these rules.
    • All components of the audio system must be clearly visible and accessible for measurements in case of doubt to the competition commission.
    • The participant must be acquainted with the rules of the competition and confirm this with a signature during registration.
    • On the day of the competition, Participants must arrive at the time set by the organizer. If the Participants arrive late, the Organizer has the right not to let Participant into Competition area.
    • A participant who does not follow these rules will be disqualified.

2•      Information about registration.

    • Participants arriving on the day of the competition must register by the set time and by submitting personal and car registration documents. Subsequent participants will no longer be registered.
    • During registration, the participant must provide detailed information about the specification of the installed audio equipment (models, parameters declared by the manufacturer).
    • A mark confirming the payment of the registration fee is attached to the Participant’s sheet issued by registration staff, which the participant must keep on the front panel of his car for the entire duration of the competition.
    • At the end of the registration, the technical commission checks the car audio equipment of all participants and confirms in which class the participant will compete.
    • The specifications of the installed audio equipment, which were specified during the registration, will be checked again before the competition, after the inspection it is STRICTLY FORBIDDEN TO CHANGE THE AUDIO EQUIPMENT CONFIGURATION.

3•      Registration fee information.

    • Registration fee for one stage – will vary depending on the event.

4•      Seasonal Competition point system information.

    • The entire seasonal audio competition consists of several stages (exact number to be announced later) in different cities on different dates. The course of all stages is the same. The winners of the competition are announced and awarded at the end of the last stage by summing up the points collected by the participants during all stages. If a participant does not participate in the stage, he / she is awarded 0 points. For participation in the stage alone, the participant receives 1 point to his / her competition account.
    • In his / her class, the participant who gets 3 points in the 3rd place according to the result, the participant in the 2nd place – gets 3 points, and the participant who has the highest result in the stage gets 4 points in his class.
    • At the end of the last stage and after summing up the points collected by the participants, the first place will be awarded to the participant who has scored the most points during the competition, and then the second and third places will receive the respective prizes. Everyone else will receive thanks for participating.
    • Each stage will be supported by different sponsors, and at the end of each stage, participants will be awarded the best results at the discretion of the sponsors.

5•      Distribution of participants into groups.

    • The organizers of the competition divide the participants into groups during the registration or after the registration.
    • Participants will be divided into six classes: Street Stock, Street A, Street B, Street C, Extreme.
    • Participants are divided into classes according to the sound system installed in the car and the modifications made to the car.
    • A participant, with the same car, can compete in only one class, during one stage. In the next stages, which take place on set dates, the class will be reselected again but the number of points collected previously remains with the participant and does not disappear anywhere.
    • A device with a diameter of 20 cm or more is considered a subwoofer and also if it’s specified by manufacturer will be classified as a subwoofer. Passive audio emitters, ports, and channels are not considered subwoofers.
    • Classes Street Stock, Street A, Street B and Street C must include unmodified cars without separate chambers or walls, with the number of seats specified in the car’s technical passport. The seats may be folded during the sound pressure measurement, but it must be possible to fold them to their original position at the request of the judge. The entire sound system must be installed in the boot (trunk). Additional openings on the outside of the car body are not permitted. In these classes, a single layer of sound-insulating material not exceeding 4 mm in thickness is permitted.
    • Any chambers or walls in the car are an acoustic system. Cars with acoustic systems can only compete in the Extreme class.
    • The rear boot (trunk) panel is not considered an acoustic system. Minimum mods (door speaker podiums, rear boot (trunk) panel) is not considered as car modifications.
    • Participants can use any audio system powered by the car’s 12V electrical system. If the supply voltage with the motor switched off exceeds 14V, the competitor may compete only in the Extreme class.
    • The car’s engine does not have to be switched off during the measurement.

6•      Street Stock class information and spec.

    • Street Stock class for participants who have not previously participated in the competition. The audio equipment used in this class must be accessible to everyone (cannot be specially made for pressure – 4th, 6th, etc.).
    • Persons, companies or their representatives involved in the sale of audio equipment or professional installation may not participate in the Street Stock class.
    • Acoustic walls or chambers are not permitted, except for the rear boot (trunk)sill (panel). Amplifiers used for non-subwoofers are not included.
    • The height of the box must not exceed the height of the rear seats. The entire audio system must be installed in the boot.
    • Standard 12V, 6-section lead/acid/gel/AGM batteries for cars are allowed. Car can’t have any extra batteries to power car audio system.
    • This class is for cars without major modifications and also excludes the following cars: Honda CRX, Fiat Panda, Seat Marbella, Yugos, trucks, minibuses.
    • The number of speakers is UNLIMITED
    • Maximum power cannot exceed 1500 Wrms, load not less than 1Ω.

7•      Street A class information and spec.

    • Acoustic walls or chambers are not permitted, except for the rear boot (trunk)sill (panel). Amplifiers used for non-subwoofers are not included.
    • The height of the box must not exceed the height of the rear seats. The entire audio system must be installed in the boot.
    • Standard 12V, 6-section lead/acid/gel/AGM batteries for cars are allowed. The main battery must be in the place specified by the manufacturer, the auxiliary battery must be in the boot. Batteries must be securely fastened. Amplifiers used for non-subwoofers are not included.
    • No more than two batteries are allowed.
    • No more than two low frequency amplifiers are allowed.
    • Only one 30 cm (12 ‘) subwoofer or not more than two 25 cm (10 ‘) subwoofers,

or up to three 20cm (8 ‘) subwoofers are allowed

  • Maximum power cannot exceed 2000 Wrms, load not less than 1Ω.

8•      Street B class information and spec.

    • Acoustic walls or chambers are not permitted, except for the rear boot (trunk)sill (panel). Amplifiers used for non-subwoofers are not included.
    • The height of the box must not exceed the height of the rear seats. The entire audio system must be installed in the boot.
    • Standard 12V, 6-section lead/acid/gel/AGM batteries for cars are permitted. The main battery must be in the place specified by the manufacturer, the auxiliary battery must be in the boot. Batteries must be securely fastened.
    • No more than two batteries are allowed.
    • No more than two low frequency amplifiers are allowed.
    • Only one 38 cm (15 ‘) diameter subwoofer or not more than two 30 cm (12 ‘) subwoofers, or not more than three 25 cm (10 ‘) subwoofers, or up to four 20 cm (8 ‘) subwoofers are allowed.
  • Maximum power must not exceed 3000 Wrms, load not less than 0.5Ω.

9•      Street C class information and spec.

    • Acoustic walls or chambers are not permitted, except for the rear boot (trunk)sill (panel). Amplifiers used for non-subwoofers are not included.
    • The size of the box must not exceed half the volume of the machine, not more than 35 cm to the ceiling and not more than 25 cm to the front door strut. Smaller boxes can be placed on the backs of the rear seats.
    • Non-standard batteries up to 16V, lead/acid/gel/AGM or lithium-ion are allowed. The main battery must be in the place specified by the manufacturer, in the auxiliary trunk. Batteries must be securely fastened.
    • The number of batteries is unlimited.
    • Up to 3 low frequency amplifiers can be used.
    • Only one 46 cm (18 ‘) diameter subwoofer or not more than two 38 cm (15 ‘) subwoofers, or not more than three 30 cm (12 ‘) subwoofers, or not more than four 25 cm (10 ‘) subwoofers, or up to six 20 cm (8 ‘) subwoofers are allowed.
    • Permissible load not less than 0.25Ω.
  •  

10•      Extreme class information and spec.

    • Up to 4 amplifiers per subwoofer.
    • The number of batteries and battery type is unlimited. Maximum permissible battery voltage up to 18 V.
    • The car must be fully operational (must move on its own).
    • Playback range 20-60Hz.
    • The equipment must be mounted behind the front door pillar.

11•      Important information for participants.

    • The sound pressure measuring sensor is attached to the windshield at a distance of 30 cm from the right pillar of the car and at a distance of 10 cm from the front panel. The distance from the sensor to the seat must not be less than 76.2 cm.
    • Frequency generator, harmonizer, speakers with servomechanisms, etc. use is prohibited.
    • All components of the audio system must be fitted (additional, capacitors, amplifiers, etc.) and must not violate the rules for their use and operation specified by the manufacturer.
    • Cables not provided by the car manufacturer must be tidy (insulated, undamaged) to avoid endangering people or property.
    • Subwoofer boxes may not be fitted during the competition, provided that they do not violate the rules for their use and operation.
    • During the measurement, the car’s original or retrofitted air-blowing devices must be switched off (this provision also applies to the car’s interior air conditioning system), doors, windows, hatches or boot lid and all other openings must be closed (except the driver’s door), the parking brake must be activated . Failure to comply with these requirements will result in disqualification.
    • At the measuring site during the preparation for 5 min. the participant is allowed to seal the leaky places of the car with adhesive tape or other materials.

12•      The course of the competition.

    • After the division of the participants into groups, the qualifying stage of the competition is carried out in each group, i.e. the sound pressure of all cars in the same group is measured.
    • 5 minutes are allocated for the participant to enter the measurement site. preparation.
    • The sound pressure measurement is performed for 60 seconds, 30 seconds is for scratching, the highest score is recorded for the remaining 30 seconds, the last 30 seconds must be fully played by the participant.
    • The participant must arrive at the venue no later than 5 minutes. after instruction. If the participant does not arrive at the site within the set time, the measurement is not performed. In this case, the participant’s result is 0.00dB.
    • After the qualifying stage, there are eight or four (if there are less than 8 participants in the group) participants with the highest results of car sound pressure measurements. They continue to compete in the playoffs, others are eliminated from the competition.
    • The participant can use any storage unit or a device, with any musical recording. The entry must be MUSICAL.
    • If the sound recording is recorded during the measurement in STREET classes lower than 20Hz or higher than 60Hz, the result will be 0.00dB.
    • If a fault has occurred in the competitor’s audio system during the measurement, but the result is recorded, the competitor must be able to rectify the fault without changing the subwoofers, amplifiers or their configuration before the next stage of the competition. If this is not possible, the next stage will be taken by the lower ranked participant.
    • It is FORBIDDEN to change the subwoofers, amplifiers and their configuration between measurements or at the sound measurement site.
    • With the same measurement results, participants will have to re-measure the sound pressure.
    • The participant is allowed to have a support group (up to 5 people including children) at the measurement site next to the car.
    • The participant and / or members of the support team are allowed to hold the car body parts by touch during the measurement.
    • Actions of the participant and / or members of his / her support group (intoxication with alcohol or other psychotropic substances, aggressive behavior, incitement to fight, insulting judges, other participants or spectators and other acts contrary to generally accepted moral norms) entitle the judges to disqualify the participant.
    • During all competitions, the participant is fully responsible for the actions of the members of his support group in accordance with the provisions of these rules.
    • The car sound system is controlled only by the participant.

13•      Final Provisions.

    • Car audio systems can create high sound pressure, so participants are advised not to be in the car during the measurements, to use the remote control. Those without a remote control of the audio system are allowed to be in the car if the participant uses additional hearing protection (headphones). Unauthorized persons are not allowed in the car during the measurement. The organizers do not take responsibility for possible health problems of the participants.
    • The organizers and judges do not take responsibility for possible failures of the participant’s audio system or car during the competition.
    • Competitors must not violate public order, respect other participants and spectators, and listen to the instructions of the judges. KET must be observed in the territory of the event, violators are responsible for their violations in accordance with the procedure established by the laws of the Republic of Lithuania.
    • Distribution of advertising material (booklets, flyers, etc.) during the event in the event area is allowed only with the prior agreement of the competition organizers and their permission.
    • All protests against judges’ decisions are made only in writing. A fee of 50Є (fifty euros) is charged for accepting an opposition. If the protest is found to be justified, the fee will be refunded. If the opposition is not upheld, the fee is used for organizational costs and is not refunded to the opponent. You can write protests to info@dbdragas.lt

 

  • The registration fee will not be refunded to the disqualified participant.

 

The specifications of the subwoofers and amplifiers will be read according to the manufacturer’s declarations.

Public settings between stages can be edited by the organizers.