Musician Earplugs Etymotic Filters


Musician earplugs are ideal for professional musicians, concert goers, or sound technicians. With three interchangeable etymotic filters available (shown in the chart below) musicians have a wide variety of applications available. All of the etymotic filters are designed for specific frequency attenuation (volume reduction) based on the instruments or environment. A wide variety of professional musicians wear ear plugs with etymotic filters while performing on-stage due to the natural sound and moderate protection. Feel free to call us if you have any additional questions and we'll let you know which filter will work best for you.


The musician ear plugs with filters, or buttons, have a diaphragm which functions as an acoustic compliance, while the volume of air in the sound bore of the custom ear-mold acts as an acoustic mass. The combination of the two produces a resonance at approximately 2700 Hz (as in the normal ear), which results in smooth, flat attenuation.

Etymotic Filters & Reduction Levels

  • ER-9 Provides flat 9 dB sound reduction through the mid range and 15 dB in the highs (Best for vocals, keyboard, acoustic)
  • ER-15 Provides uniform 15 dB sound reduction across frequencies (A great all around musician earplug filter)
  • ER-25 Provides 25 dB relatively flat sound reduction across frequencies (Best for drums, brass, and loud instruments)
Please read the terms and conditions prior to completing your purchase. All of our custom ear plugs, earphones, and adapters require an impression to be made of each ear at a licensed Hearing Aid Center or Audiology Clinic. Click here to find out more. Earplug size and colors shown in pictures may not be available for every earplug. Please use the colors in the drop down box to select from the colors available. *Read our 60 day best fit guarantee.

Collections: Custom Ear Plugs

Type: Earplug

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After eight great years in our Capitola location, we're moving to Mid-Town! Our new location is in the Seabright neighborhood of Santa Cruz, near the Sutter Health Physical Therapy Center and Lilian's Italian Restaurant. Call us if you would like instructions.

Our New Santa Cruz Location:
The Listening Stack
1535 Seabright Ave. Ste. 100
Santa Cruz, CA 95062
(831) 498-9890

This will be our new address as of August 22, 2022 and is only for our Capitola location. Our Watsonville location is still at 1484 Freedom Blvd. Our phone number is still (831) 498-9890 so feel free to call us if you have any questions.