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Rules | IdBL

IdBL is our SPL competition format. The rules are simple:
Loudest vehicle in each class wins! 

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Next Steps to COMPETE

There are three essential steps, become familiar with the competitor handbook and IQC rules and become an IASCA member. 

Rules of Competition

IASCA IdBL

Goals

This competition format was created with multiple divisions (Amateur, Stock, Stock Advanced, Advanced and Ultimate) and based on the experience and industry position of the competitor and the level of modification to the vehicle. IdBL Classes are based on the cumulative total of all subwoofer cone surfaces in square inches.

Criteria

Sound Pressure Level (SPL) measurements in deciBels (dB) are registered using the Official IASCA SPL meter . Determining the winner is simple; the highest score in each class wins! Any metering system may be used at SPE or DPE events, however at TKE’s and WRE events, the Official IASCA SPL meter must be used. Typically, most show promoters will offer two scoring attempts, giving each competitor the opportunity to increase their previous score. The highest score of the two attempts will prevail.

Purpose

The purpose of IASCA IdBL is to raise the standard of sound system installation, educating consumers and industry members alike to the benefit of a properly installed aftermarket sound system, without bias or consideration towards brand or vehicle, aiding in the promotion of system safety, performance, serviceability and cosmetics.

SPIRITED

Join us on a craftsman's journey in the world of spirited competition in creating something special that fits your car, your goals and ideals... your style on your terms.   A passion, now a hobby, and a way of installing high end audio and accessories that's rewarding on many levels. 

Competition 

"Friendships born on the field of athletic strife are the real gold of competition; awards become corroded, friends gather no dust." 
~ Jesse Owens:

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