big magnet loundspeaker

Model

5717LCM04-3

Dimension

Outline Dimension Shall Be As Shown In Fig(1).

Weight

Approx 48    Grams.

Magnet

Materials  Nd-Fe-B   Size:φ 32*18*3

Impedance

4±15% ohm    At  1000Hz/1v.

Power Rating

Normal 3.0W.   Maximum 4.0 W.

Lower Resonant Frequency

450Hz±20%

Output Sound Pressure Level

(S.P.L)

108±3db/1Watt 1Meter.Average At800,1000,1200,1500Hz.

Measurement Method Shown In Fig(2).

Frequency Range

FO~8KHz.Average SPL-20db. Shown In Fig(3).

Distortion

5% Maximum At 1000Hz. 3.0W.

Abnormal Sound Test

Must Be Normal By 3.43 Volts.Sine Wave.

Polarity

Diaphragm Shall More Forward When Apply a Positive DC

Current To The “+” or “marked” Terminal.

Operating Temperature

-20°C to +65°C

Storage Temperature

-25°C to +65°C

15

Reliable Test

15-1

Load Test

Must be normal after load test:white noise 3.0 W 24 hours.

15-2

Heat Test

Must be normal after   65±2 °C and relative humidity 20~25% 16hours And then room temperature 1 hours.

15-3

Cold Test

Must be normal after   -25±2 °C 16hours and then room temperature 1 hours.

15-4

Humidity Test

Must be normal after   65±2 °C and relative humidity 90~95% 16hours And then room temperature 1 hours.