Hearing Instrument Balanced Armature Receivers

Knowles' balanced armature technology platform uplifts the design and development of receivers for more advanced hearing aid solutions. Precise, custom-crafted performance is facilitated by such proprietary design possibilities as Pantograph™ higher audio output, Ferrofluid™ damping, Wide Bandwidth for high-frequency hearing loss, D-Amp™ internal power management, and Vibration Isolation for superior gain-before-feedback.

Features

  • Advanced noise reducing options
  • Custom-crafted performance
  • Improved durability
;

Select a product category to view features, benefits, documents and performance details

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BK Series

7.87mm x 5.59mm x 4.04mm (.310in x .220in x .158in) High sensitivity Responses include standard and broader band Low distortion Self-shielded for low magnetic radiation Wide range of port locations and impedances 2 and 3 terminal versions
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CI Series

9.47mm x 7.18mm x 4.10mm (.373in x .283in x .162in) 143dB SPL maximum output Undamped response Two and Three-terminal electrical connection Various port locations Wide range of coil impedances
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DFK Series

5.00mm x 2.73mm x 3.86mm (.197in x .108in x .152in) 130dB SPL maximum output Low Vibration
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DTEC Series

7.87mm x 4.09mm x 5.23mm (.310in x .161in x .206in) Dual elements with single sound port Increased output Reduced vibration Enable hi-fi designs
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EC/FEC Series

7.59mm x 4.34mm x 3.73mm (.299in x .171in x .147in) High sensitivity Ferrofluid available for screenless damping and improved shock performance Low distortion Self-shielded for low magnetic radiation Wide range of impedances 2 and 3 terminal versions
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ED/FED Series

6.32mm x 4.31mm x 2.97mm (.249in x .170in x .117in) Compact size - 0.081cc Appreciable output power - 112dB nominal, 129dB maximum Two-terminal zero-bias and three-terminal center-tapped configurations Undamped, screen damped, internally damped, and FerrofluidTM damped responses with 2dB, 4dB, or 6dB peak amplitude Numerous port locations Wide range of coil impedances Available with FerrofluidTM technology for screenless damping and improved shock performance
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EF/FEF Series

7.87mm x 5.59mm x 4.01mm (.310in x .220in x .158in) For all ranges of BTE applications 139dB SPL maximum output Two-terminal zero-bias and three-terminal center-tapped configurations Broad bandwidth for improved sound quality Undamped, screen damped and FerrofluidTM damped responses with 2dB, 4dB, or 6dB peak amplitude Numerous port locations Wide range of coil impedances Available with PantographTM, FerrofluidTM, and Vibration IsolationTM technologies
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EH/FEH Series

5.19mm x 3.55mm x 3.00mm (.204in x .140in x .118in) 128dB SPL maximum output Two-terminal zero-bias and three-terminal center-tapped configurations Undamped, screen damped, internally damped, and FerrofluidTM damped responses with 2dB, 4dB, or 6dB peak amplitude Numerous port locations Wide range of coil impedances Available in Class-D amplified version as ES or FES receiver
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EJ Series

6.33mm x 4.32mm x 5.97mm (.249in x .170in x .235in) 135dB SPL maximum output Low Vibration
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FC/FFC Series

5.17mm x 3.55mm x 3.00mm (.204in x .140in x .118in) with rounded corners. 127dB SPL maximum output Available in High-Output HC receiver version - even more MPO Two-terminal zero-bias and three-terminal center-tapped configurations Undamped, screen damped, internally damped, and FerrofluidTM damped responses with 2dB or 4dB peak amplitude Numerous port locations Wide range of coil impedances Available with FerrofluidTM technology offering screenless damping and improved shock performance Available in Class-D amplified version as FD and FFD receiver
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FH/FFH Series

5.09mm x 2.80mm x 2.59mm (.200in x .111in x .102in) 124dB SPL maximum output Two-terminal zero-bias and three-terminal configurations Undamped, screen damped, internally damped, and FerrofluidTM damped responses with 2dB, 4dB, or 6dB peak amplitude Numerous port locations Wide range of coil impedances Available with FerrofluidTM technology offering screenless damping for superior shock performance and reduced receiver vibration
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FJ Series

5.08mm x 2.79mm x 5.18mm (.200in x .110in x .204in) 129dB SPL maximum output Low Vibration
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FK Series

5.00mm x 2.73mm x 1.93mm (.197in x .108in x .078in) 123dB SPL maximum output Two-terminal zero-bias configuration Undamped, screen damped, and internally damped responses Numerous port locations Wide range of coil impedances Wide bandwidth version available - ideal for patients with mild to moderate high-frequency hearing loss.
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GD Series

5.99mm x 3.10mm x 2.59mm (.256in x .122in x .102in) High sensitivity Low vibration Low magnetic radiation Wide range of port locations and impedances
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GR Series

6.10mm x 3.20mm x 4.32mm (.240in x .126in x .170in) High sensitivity Low vibration Low magnetic radiation Wide range of port locations and impedances
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HC/FHC Series

5.17mm x 3.55mm x 3.00mm (.204in x .140in x .118in) with rounded corners. In-ear size receiver Improved low frequency headroom
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RAB Series

5.28mm x 2.96mm x 2.58mm (.208in x .117in x .101in) Popular form factor Excellent efficiency for its size Low magnetic radiation Ideal for small hearing aids including RIC Also for Bluetooth headsets & communications earpieces
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TEC Series

7.87mm x 4.09mm x 2.79mm (.310in x .161in x .110in) Ultra-thin Wideband output
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TWFK Series

5.00mm x 2.73mm x 3.86mm (.197in x .108in x .152in) Dual elements with single sound port Extreme wideband capability Unique woofer/tweeter design Mechanical shock resistance