2021 SPL Rule Book

SPL Rulebook

2021 SPL Rule Book is free to review and download at:  https://tinyurl.com/2021MECASPLRulebook

SPL Reference Guide is on page 6 of the Rule Book

MECA’s Sound Pressure League is the best thing since 12″ Subwoofers

-Jason Clark
OLYMPUS DIGITAL CAMERA

This is great. This is really great.

I’m as happy as a clam