IASCA Competitors are a unique breed; whether its the sponsored Pro Competitor or the "Do it Yourself-ers", soundoff competitors want to test their systems against others who compete by IASCA Rules. IASCA is the original Soundoff organization.

The common thread among soundoff competitors is that they are dedicated people, constantly striving to build and tune the best sounding and LOUDEST sound systems on the planet.  They read and know the IASCA rules and enter into contests of Sound and Installation Quality and Sound Pressure Level (SPL). 

Since 1988, IASCA’s Rules for Car Audio Competition are considered the industry benchmark in system evaluation recognized worldwide.

Our competition class structure ensures that no one "EATS YOUR LUNCH" especially not a "Pro" or someone who's got like 10 times the equipment or expertise that you have. EVERYBODY is on a level playing field in IASCA. 

Whether you’re a Sound Quality audiophile, an SPL junkie, a Bass Boxing street banger, Car Show cruiser, or if auxilliary neon and LED lighting is your thing, IASCA has a competition format just for you.

Even if you never enter into a competition, reading the IASCA Rulebook will build your car audio knowledge and help you understand your system better. You can't tell the players without a program... get the best in sound by downloading the rules and READING THE BOOK.