Competition Organizations

Sanctioning bodies and leagues that organize car audio competitions worldwide. From SPL battles to sound quality judging, find events from the organizations that make it all happen.

M

MECA

Hosts 100-150+ events per season with competition formats for cars, trucks, and motorcycles. Known for fair competition through classification systems and their motto: "Fun, Fair, Loud & Clear."

Est. 1998924 events
I

IASCA

Formed in 1987 from the merger of Alpine's Car Audio Nationals and NACA. Provides judging standards and team guidance for sound quality, installation quality, and SPL competitions worldwide.

Est. 198738 events
E

EMMA

15 events
d

dBDRA

Founded by Wayne Harris, dBDRA pioneered head-to-head SPL competition. Has hosted over 25,000 events worldwide since 1998 across 40+ countries with formats including dB Drag Racing, Bass Race, Top Dog, Psychlone, and Bagger Beatz.

Est. 199811 events
B

Bass Wars

Bass Wars competition organization featuring SPL, Port Wars, Hot Seat, and Death Match formats. Classifies competitors by Bass Value (speaker + port surface area).

9 events
U

USACi

United States Autosound Competition International - The Loudest Sport on Earth. Founded in the 1980s, offering SPL, Music, Demo, and SQ competitions worldwide.

Est. 19863 events
E

EMMA USA

0 events
I

ISPLL

0 events
M

MASQ

0 events
M

Midwest SPL

0 events
N

NADBL

North American Decibel League - Regional car audio competition league with events across North America since 2015.

0 events
N

NADBL 1771747348567

North American Decibel League — Test Org

0 events
N

NADBL 1771751724135

North American Decibel League — Test Org

0 events
N

NADBL 1771993094414

North American Decibel League — Test Org

0 events
N

NADBL 1771996319342

North American Decibel League — Test Org

0 events
N

NADBL 1772599825932

North American Decibel League — Test Org

0 events
N

NADBL 1772603938974

North American Decibel League — Test Org

0 events
N

NADBL 1773212243057

North American Decibel League — Test Org

0 events
N

NADBL 1773471353532

North American Decibel League — Test Org

0 events
N

NADBL Test 1771751639490

Musical SPL competition league focused on sustained acoustic performance

0 events
N

NADBL Test 1771792615378

Musical SPL competition league focused on sustained acoustic performance

0 events
N

NSPL

National Sound Pressure League

0 events
T

Termpro

Termpro SPL competitions

0 events