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Price comparison product image Etymotic Research® ER-9 Single Filter for Musicians' Earplugs™ (Blue)

Etymotic Research® ER-9 Single Filter for Musicians' Earplugs™ (Blue)

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US $30.00
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Designed for use with the Westone's DefendEar Concert (Style 49) Musicians' Earplugs. Etymotic filters feature a flat frequency response that allows musicians to hear their performance accurately while providing hearing protection. The ER-9 provides flat 9 dB sound reduction through 2 kHz and slopes down to 15 dB at approximately 8 kHz. It is the ideal attenuator for musical situations that may not require as much attenuation as the ER-15 or ER-25 filters provide.

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