KNOWLES

KNOWLES - EF-FEF serie

Dimensions (mm):
7.87 x 5.59 x 4.01
Intro:
The staple receiver for modern BTE hearing instruments, the EF series represents a precise balance of output power and compact size. Its length-width-height ratio provides an optimum fit that helps maximize BTE space and layout considerations while still providing superior acoustic output. A full range of Knowles' PantographTM, FerrofluidTM, and Vibration IsolationTM technologies help maximize the EF series use for any BTE instrument design. The FEF receiver brings the advantages of Ferrofluid damping, including reduced receiver vibration and improved shock survivability. These advantages are added to the EF receiver's precise balance of power and compact size. A full range of Knowles' PantographTM and Vibration IsolationTM technologies help maximize the FEF series optimum fit and superior acoustic output.
Key Features:
• 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
Model Sensitivity (dB SPL @ 1 kHz) Port location Impedance (DCR) in Ω Imp. @1kHz (Ω) Imp. @500Hz (Ω) Damping (Note1)
EF-21763-000 125.0 12S 195.0 1275.0 501.0 Undamped
EF-21933-000 125.0 12S 195.0 1275.0 501.0 Undamped
EF-21935-000 125.0 12S 48.5 327.0 128.0 Undamped
EF-21937-000 126.0 12S 92.5 641.0 250.0 Undamped
EF-21942-000 125.0 12S 92.5 641.0 250.0 Undamped
EF-21943-033 125.0 12S 92.5 630.0 240.0 Undamped
EF-21958-000 124.0 12C 195.0 1331.0 501.0 Undamped
EF-23094-XXX 125.0 12S 92.5 641.0 250.0 Undamped
EF-23168-000 126.0 12S 46.5 160.0 62.0 Undamped
EF-23187-000 126.0 2S 530.0 3560.0 1400.0 Undamped
EF-26161-116 126.0 2S 75.0 542.0 212.0 Undamped
EF-26274-000 126.0 12C 10.0 76.0 30.0 Undamped
EF-26329-000 126.0 1S 35.0 150.0 64.0 Undamped
EF-26348-000 118.0 2S 39.1 155.0 69.0 Undamped
EF-26363-116 126.0 2S 28.0 136.0 57.0 Undamped
EF-26369-000 113.0 12S 46.5 30000.0 30000.0 Undamped
EF-26418-000 114.5 12N 50.0 377.0 140.0 Undamped
EF-26419-000 114.5 12N 50.0 377.0 140.0 Undamped
EF-26426-000 122.0 1S 46.5 160.0 62.0 Undamped
EF-26430-000 124.0 12S 165.0 964.0 438.0 Undamped
EF-26494-000 126.0 1S 195.0 1275.0 501.0 Undamped
EF-26634-000 126.0 1S 92.5 675.0 265.0 Undamped
EF-26635-000 126.0 2S 21.0 147.0 57.5 Undamped
EF-26636-000 126.0 2S 15.0 101.0 42.0 Undamped
EF-26665-000 126.5 1S 105.0 636.0 252.0 Undamped
EF-26692-116 126.0 2S 290.0 555.0 300.0 Undamped
EF-26708-017 124.0 12S 25.0 175.0 70.0 Undamped
EF-26714-000 126.0 12S 35.0 150.0 64.0 Undamped
EF-27351-000 126.0 12S 21.0 140.0 57.0 Undamped
EF-27428-116 126.0 2S 92.5 641.0 250.0 Undamped
EF-27505-000 126.0 12S 105.0 636.0 252.0 Undamped
EF-27534-000 126.0 12S 15.0 110.0 43.0 Undamped
EF-27715-000 126.0 11S 48.5 327.0 128.0 Undamped
EF-27985-000 126.0 12S 48.5 345.0 135.0 Undamped
EF-28378-000 126.0 12S 195.0 1275.0 501.0 Undamped
EF-29586-000 126.0 12S 20.0 135.0 53.0 Undamped
EF-29615-000 126.0 1S 48.5 345.0 135.0 Undamped
EF-29734-033 126.0 12C 48.5 342.0 128.0 Undamped
EF-29802-000 126.0 12S 530.0 3382.0 1332.0 Undamped
EF-30037-000 119.0 1S 15.0 98.0 40.0 Undamped
FEF-26348-I02 116.0 2S 39.1 115.0 73.0 Ferrofluid
FEF-26356-I04 116.0 12S 39.1 135.0 73.0 Ferrofluid
FEF-26790-I02 116.0 2S 18.0 88.0 50.0 Ferrofluid
FEF-27351-P16 116.0 12S 20.0 113.0 56.0 Ferrofluid