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ACS Custom USA, LLC 

New York (Head Office)      Los Angeles

@ SIR Studios                   1616 Vista Del Mar Ave.
520 W 25th Street            Hollywood, CA 
New York, NY                  90028

646 559 5642       




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ER 20 Universal Fit Hearing Protection

Generic fit hearing protector with a level attenuating reduction of 16dB reduction across the frequency spectrum. Popular with children, gig goers and anyone with an interest in music...
Sales price: $13.99

The ACS ER20 hearing protector has been allowing musicians and music lovers the world over to enjoy live music without the risk of damage to their hearing. The ER20 is filtered to allow you to enjoy the full dynamic range of your music at lower, safer volumes avoiding the muffling effect that you experience with foam earplugs.

Your audio gatekeeper

The ER20 is fitted with a flanged rubber tip that creates an isolating seal in your ear canal to block out sound so that it can then control what gets in and what doesn't. The central chamber of the plug creates an accoustic channel that feeds the sound up to the filter at the base of the eartip where the ER filter shaves an average of 16dB off across all frequencies giving the effect of turning the volume down on the world around you with no muffling.

ER20 earplugs are supplied with their own carry case so you can carry them with you whenever you need them.