Found this on Craigs List, No clue about the shop or anything or what meter they are using, But if anyone is close to Buckley go check it out.
Have you ever wondered how loud your stereo is? Have you heard stories about people CLAIMING to blow out there windows in their car?
Come on down.
We will Test your vehicle with a SPL Meter (Sound Pressure Level).
Let us evaluate your system.
Give you pointers of what can be done and what you have done right.
Official Certificate will be given showing your actual SPL Level.
Never let your buddies doubt you again.
Have your photo taken and we post them on the wall of weekly winners.
Having a week long contest. Keeping track of who has the loudest vehicle.
Single 10" Woofer
Single 12" Woofer
Dual 10" Woofers
Dual 12" Woofers
Weekly surprise prizes given out to winners in each category. Compete against your buddies. DON'T LET THEM BE LOUDER.
NW Auto Security
28120 Highway 410 E
Buckley, WA 98321