Case 1 - The subwoofer enclosure is located ENTIRELY underneath the rear hatch OR the highest point on the enclosure is located underneath the hatch.
In this example the judge will measure from the highest point on the enclosure (including amps, accessories, woofer surrounds, etc.) to the horizontal plane defined by a point located at the top center of the hatch opening. (Please refer to Figure 15-6, 15-7a, and 15-7b.)
Case 2 - The subwoofer enclosure is NOT located entirely underneath the rear hatch. In addition, the highest point on the enclosure is located directly beneath the headliner.
In this case the standard wall test technique will be used. (From the highest point on the enclosure to the headliner.) Figures 15-6, 15-7a, and 15-7b do NOT apply in this case.
April 25, 2017 - Term-LAB Power Measurement
Please refer to the following document for specific instructions on using Term-LAB for power measurements...
In rare situations electrical interference from the contestant's vehicle or sound system may prevent the Term-LAB measurement system from obtaining an accurate power measurement. In these situations the contestant will be moved to one of the unlimited power classes of competition.
1994 - Lane Choice
In the Elimination Rounds of dB Drag Racing and Bass Race, lane choice is granted to the competitor with the higher INCOMING score. If both competitors have the same incoming score then each competitor's qualifying score will be used to determine lane choice.