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Knowles dampers for earphone tuning

Dampers are acoustic cloth screens for insertion inside acoustic tubing. These damping elements are used between the receiver outlet and the ear canal to smoothen the frequency response ( tune receiver / driver response curve resonance peaks ). Various acoustical resistances and sizes are available, different damper diameters, and different damper positioning is examined via numerous examples. 

 

Features:

1,  Smoothen and shape frequency response

2,  Various acounstical resistances and saizes 

Package include: 

2 pieces Knowles acoustic dampers 

Optional color：

Green damper fits for low frequency unit, 

White damper fits for high frequency unit,

Red damper fits for multi-frequency low frequency unit. 

Brown damper: SE420, SE846

Green damper：SE210 SE310 E3C E4C  Etymotic ER4 series. 

White damper：SE530 SE535 E5C SCL5 Westone UM3x ER6i