After everyone has had an opportunity to qualify, the 8 loudest contestants in each class will be randomly paired against one another in the quarter-final elimination bracket. Each pairing of competitors will compete against one another in a head-to-head fashion. The winner will advance to the next round of eliminations and the loser will be eliminated from the contest. This form of competition will continue (semi-finals and finals) until there is a winner for each class.
Qualifying Scores - Term-LAB will display and use SPL values with 0.01 dB resolution.
Elimination Scores - Term-LAB will display SPL values with 0.1 dB resolution.
The following violations will result in a score of ZERO...
Red Light – Playing your sound system BEFORE the 30 second clock begins.
Over Shot – Exceeding your classes’ maximum score at any time during the run. (Example: A contestant scoring a 132.0 at any time during an elimination run in the 120.0 – 129.9 class would result in a score of ZERO.)
Over Rev – Revving the motor in excess of 2000 RPM’s.
Venting – Opening a door, trunk, hatch, sun-roof, window, etc. during the run.
High Freq – Playing a bass note in excess of 80 Hz to obtain a maximum average score.
Test Tones – Using test tones or sine sweeps for program material.
In the case of a tie, the following steps will take place to determine the winner…
First Tie-Breaker – Shut down the engines and re-run the round.
Second Tie-Breaker - Shut down the engines and re-run the round by operating the system from outside the vehicle.
Third+ Tie-Breaker(s) - Re-run the round using a randomly generated target score. Prior to the run, Term-LAB will generate and display the new target SPL. This SPL will be a value within the top 5 dB range of the current class. Exceeding this target SPL, will result in an overshot violation.