Dampers :: Knowles

Dampers

  • Smoothen and shape frequency response
  • Various acoustical resistances and sizes

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. Various acoustical resistances and sizes are available.

 

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Model Id Dimensions Plug Diameter Resistance Color
BF-1778-000 N/A Extraction tool OD: 7.92 (.312); ID: 2.6 (.102) N/A N/A
BF-1859-000 2.08 dia x 2.44mm (.082 dia x .096in) Plug 2.08 680 White
BF-1860-000 2.08 dia x 2.44mm (.082 dia x .096in) Plug 2.08 1000 Brown
BF-1861-000 2.08 dia x 2.44mm (.082 dia x .096in) Plug 2.08 1500 Green
BF-1921-000 2.08 dia x 2.44mm (.082 dia x .096in) Plug 2.08 2200 Red
BF-1922-000 2.08 dia x 2.44mm (.082 dia x .096in) Plug 2.08 3300 Orange
BF-1923-000 2.08 dia x 2.44mm (.082 dia x .096in) Plug 2.08 4700 Yellow
BF-1988-000 1.12 dia x 1.410mm (.044 dia x .0555in) Screen 1.12 680 White
BF-1991-000 1.12 dia x 1.410mm (.044 dia x .0555in) Screen 1.12 1500 Green
BF-1995-000 1.12 dia x 1.410mm (.044 dia x .0555in) Screen 1.12 2200 Red
BF-1997-000 1.78 dia x 1.65mm (.070 dia x .065in) Screen 1.78 680 White
BF-1999-000 2.08 dia x 2.44mm (.082 dia x .096in) Plug 2.08 330 Grey
BF-3002-000 Length: 5.26 (.207); Max length: 6.70 (.264) Coupling tube OD: 1.4 (.055); Max Dia: 3.05 (.120) N/A 305 Stainless Steel
BF-3034-000 1.78 dia x 1.65mm (.070 dia x .065in) Screen 1.78 330 Grey
BF-3035-000 1.78 dia x 1.65mm (.070 dia x .065in) Screen 1.78 1000 Brown
BF-3036-000 1.78 dia x 1.65mm (.070 dia x .065in) Screen 1.78 3300 Orange
BF-3037-000 1.78 dia x 1.65mm (.070 dia x .065in) Screen 1.78 2200 Red
BF-3038-000 1.78 dia x 1.65mm (.070 dia x .065in) Screen 1.78 1500 Green
BF-3039-000 1.37 dia x 1.57mm (.054 dia x .062in) Screen 1.37 1500 Green
BF-3040-000 Length: 2.17 (.085) or 1.90 (.075) Rubber compression sleeve ID: 1.57 or 1.42 (.062 or .056); OD: .46 or .30 (.018 or .012) N/A N/A
BF-3163-000 1.12 dia x 1.410mm (.044 dia x .0555in) Screen 1.12 4700 Yellow
BF-3292-000 1.37 dia x 1.57mm (.054 dia x .062in) Screen 1.37 1000 Brown
BF-3320-000 1.12 dia x 1.410mm (.044 dia x .0555in) Screen 1.12 1000 Brown
BF-7083-000 1.37 dia x 1.57mm (.054 dia x .062in) Screen 1.37 680 White
BF-9778-000 1.37 dia x 1.57mm (.054 dia x .062in) Screen 1.37 2200 Red