Musicians Earplugs

The problem with conventional earplugs
  • Most earplugs attenuate more than necessary when fitted properly.
  • Too much attenuation in the high frequencies makes speech and music sound muffled and unclear.
  • Users don't always wear them deeply enough in their ears because they want to hear speech and machinery.

 

The solution : ER earplugs

ER-15 and ER-25 buttons are designed to match the ear's natural reaponse when attached to a custom earmold.

The result is that music and speech can still be heard clearly, but will not be as loud.

The theory and design of flat response attenuators

A flat-response attenuator must have a frequency response that follows the shape of the natural frequency response of the open ear, but at a reduced level.

The ER-15, ER-15SP (sport plug) and ER-25 use diaphragms similar to a passive speaker cone, to achieve the desired response curve.

ER-15SP : In order to provide the smallest possible size, the 6 kHz "side branch resonance" (which smoothes the ER-15 response above 3 kHz) was sacrificed in the ER-15SP.  The result is a plug with less attenuation at 6 kHz, but is otherwise similar to the standard ER-15.

Shapes / Colors / Styles :

Top half : ER-15 & ER-25 - Musicians Earplugs

Bottom half : ER-15SP - Sports Plugs
Home