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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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About ACS


ACS was established in 1994 as a company dedicated to hearing conservation and the manufacture of custom-fit hearing protection and in-ear monitors. Since introducing the first soft silicone in ear monitor, the T3, ACS has continued to be at the forefront of innovation and product development. Our outstanding range of T Series in-ear monitors are the choice of many world class artists, providing an exceptional and safe delivery of their on-stage mix. Outside of their pro-audio application, ACS earphones are selected by audiophiles and music lovers to provide a stunning audio experience that reveals music at a level of indescribable detail.  

With R&D pumping the ACS heart, 2013 will see the full launch of our groundbreaking Live! Series ambient system, which will allow users of the T1 Live! and T2 Live! earphones the ability to introduce and control the ambient surroundings into their monitor mix in the most natural way possible. 

Headquartered in Banbury, Oxfordshire, ACS has offices in London and New York and a global network of carefully selected manufacturing and distribution partners, so no matter where you are, you’re never far from an authorized ACS provider.

The continuing development of our product line and our desire to innovate in all areas drives us to deliver the best in both products and service. We understand that every customer is as unique as the product that we provide for them.

Contact Us

@ SIR Studios
520 W 25th Street            1616 Vista Del Mar
New York, NY                  Los Angeles, CA

10001                               90028

Office hours are 10am to 6pm EST Monday - Friday 

Tel : 646 559 5642 

email :



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