ACS Custom In Ear Monitors - Quality, Comfort and Hearing Protection
30 Years of Innovation in Custom In Ear Monitoring
Since 1994, ACS has been designing and refining custom in ear monitoring and hearing protection, becoming the world leader in soft silicone shell custom in ear monitors. In 2024, they celebrated 30 years of innovation and commitment to musicians.
Sound Quality Meets Hearing Protection
ACS combines exceptional sound quality with a focus on comfort and long-term hearing health. They are as dedicated to protecting your ears as they are to delivering precise, detailed audio.
Precision Engineering and Advanced Technology
As the first manufacturer to fully embrace digital production, ACS achieves levels of accuracy that are hard to match. Every set of ACS Custom in ear monitors is individually tuned to your ear, with Sound Stage Imaging (SSI) and IRIS technology delivering a perfectly balanced and consistent sound.
Classic or Ambient?
Finding the Right ACS Custom In Ear Monitors for You
ACS offers two main series of custom in ear monitors, designed to meet the needs of today's music professionals.
Classic Series
The Classic Series delivers a great sound backed by ACS' decades of expertise. These IEMs fully seal the ear canal, providing 26 dB of isolation so you can focus entirely on your performance.
Ambient Series
The Ambient Series offers all the benefits of the Classic, with the addition of a bespoke 17 dB filter featuring a tuned, flat frequency response. Designed by ACS, this filter reduces the occlusion effect, maintains the bass response of your IEMs, and allows more of the stage sound to reach your ears. You get great sound while staying connected to your surroundings.
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Leaders in Soft Shell Custom In Ear Monitors
All ACS Custom in ear monitors are built using 40 Shore medical-grade soft silicone and finished with a durable, flexible lacquer.
The benefit of soft shell IEMs is that they move with you. Your ear canals naturally change shape depending on jaw position (for example when you sing). With hard acrylic shells and poorly taken impressions, you risk losing the seal, which compromises sound quality.
A soft shell ACS Custom in ear monitor maintains its seal in any situation, ensuring consistent performance and comfort. Having tested our Evolve Ambient Customs live, we can confidently say they deliver both in feel and sound.
