50mm Dynamic Speaker for Headphone 32 ohm 112dB

Model:
RB-E50032G-055R
Production Capacity:
500 000pcs/Month
Port:
Shenzhen, China
Manufacturer Certificate:
ISO14000&ISO9001
Customer Design Is Welcomed

Model : RB-E50032G-055R Ploymer Composite Diaphragm
Below Measuring condition under temperature : 25~35℃ R.H. 25 ~75%. According to standard GB/T9396-1996

Specifications:

50mm Dynamic Speaker for Headphone 32 ohm 112dB

  • 1. Type: Dynamic Speaker
  • 2. Dimension: Outline Dimension Shall Be As Shown In Fig(1).
  • 3. Weight: Approx 15.7 Grams.
  • 4. Magnet: Material: Nd-Fe-B
  • 5. Impedance: 32 ± 15% Ohm at 1000Hz. 0.5V
  • 6. Power Rating: Normal | 20 mW | Maximum | 30m W
  • 7. S.P.L.: 112±3dB/1.0mWatt 0.01Meter. At 1000Hz.
    Measurement Method Shown In Fig(2).
  • 8. Frequency Range: 20~20,000Hz.. Frequency Response Fig (3).
  • 9. Distortion: 5% Maximum At 1000Hz. 1.0mW.
  • 10. Abnormal Sound Test: Must be Normal Tested by 0.8 Volts. Sine wave for20~2kHz
  • 11. Polarity: Diaphragm Shall Move Forward When Apply a Positive DC.
    Red “+” or“ Marked” Terminal
  • 12. Operating Temperature: -25 °C to +65 °C
  • 13. Storage Temperature: -25 °C to +65 °C
  • 14. Reliable Test: After any following test leave speakers at room temperature for 1 hour, SPL shall not deviate by 3 db from initial value
  • 14-1.Load Test: white noise for 96 hours at 20m W input power.
  • 14-2.High Temperature Test: +65±2 °C 96hours
  • 14-3.Low Temperature Test: -25±2 °C 96hours
  • 14-4.Humidity Test: +40±2 °C relative humidity 90~95%R.H 96hours
  • 14-5.Vibration Test: Frequency 30±15 Hz, Amplitude 1.5 mm for 2 Hours per axis(x. y. z axis)
  • 14-6.Drop Test: 75 CM free falling on Concrete floor, 10 times.
  • 14-7.Temperature Cycle test: -25~ + 65 °C | 5 Cycles Temperature test.
  • 17. Measurement  Method Fig(2).
  • 18. Test baffle Diagram
  • 15. Drawing(Fig1)   Unit: mm  Tolerance:±0.3mm
  • 16. Speaker Construction
# Part Name Material QTY
1 Terminal FR-4 1
2 Frame ABS 1
3 Yoke SPCC 1
4 Magnet Nd-Fe-B 1
5 Washer SPCC 1
6 Voice Coil COPPER 1
7 Diaphragm PET 1
8 Cloth PAPER 1
9 Washer SPCC 1
  • 19. Frequency Resonance Fig (3).

50mm Dynamic Speaker for Headphone 32 ohm 112dB

  1. It is a PET diaphragm mylar speaker, for headphones, diameter 50mm
  2. Big strong magnet N45, plastic housing.
  3. We can adjust the sound quality according customer requirement, because different customer may has different sound quality requirement, for example, Russia customer usually need with rich high frequency, about 5-8K, USA customer may need more bass.
  4. For different sound quality, usually we need to change the diaphragm and magnet, of course the coil structure maybe need to be changed too.

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