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Dynamic Receivers :: Knowles

Dynamic Receivers

  • High quality and robustness
  • Maximized space efficiency
  • Excellent audio performance-to-size ratio
  • Optimized for use in mobile devices
  • Optional Hearing Aid Compatibility (HAC)
  • Dedicated application support

Knowles dynamic receivers, also known as ear-piece speakers, are designed to maximize space efficiency and audio performance in small, slim consumer devices, such as mobile handsets or smartphones.

Knowles dynamic receivers are available for narrow or wide band applications in various sizes and performance levels, which can be finely tuned to meet your specific requirements. Dedicated support is provided to realize the optimal sound performance in your application.

To assure highest quality standards, the receivers are manufactured in a process that uses 100% in-line measurement of all specified acoustical and electrical parameters.

 

Technical Bulletins    Application Notes    Search All Products

Model Id Name Dimensions (mm) Sensitivity(W/m)* Air Pumping Capacity f0 (Hz) Frequency Range (Hz)** Max sine power (mW) SPL max (@ max sine power)***
2403 260 00031 Petra 8 x 12 x 2 68dB 20mm³ 350 300 - 7000 5 mW 110dB
2403 260 00041 M-Stout 4.8 x 10 x 2.2 65dB 9mm³ 520 450 - 8000 10 mW 110dB
2403 260 00051 Lean 6 x 12 x 2 65dB 20mm³ 350 300 - 7000 10 mW 110dB
2403 260 00087 Franklin 6 x 15 x 2 71dB 25mm³ 400 300 - 7000 20mW 119.5dB
2403 260 00097 Coleman 300 6 x 15 x 2 67.5dB 28mm³ 300 250 - 7000 10 mW 113.5dB
2403 263 00052 Julia HAC 6 x 15 x 2.5 70dB 16mm³ 450 400 - 4000 20mW 111.5dB
2403 263 00092 Nith 8 x 15 x 1.5 69dB 25mm³ 300 160 - 7000 10mW 114dB

 

Note: Impedance of all receiver devices is typically 32 ohms
*) average value measured in baffle, subtract 10dB for value in dB/mW/0.1m
**) measured at 1 kHz in 3.2 high leak adapter
***) in typical application, at -3dB points after resonance peaks, without EQ correction