丹姆德

FHDDMT87A


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FHDDMT87A


所属分类: 多媒体喇叭

产品描述

1.SPECIFICATION
Speaker

1

Dimension

87*87*H28

2

Impedance

8±15%Ω at 1KHz,1.0V

3

Rated Input Power

2W

4

Max Input Power

4W

5

Lowest Resonance Frequency

250Hz±20%

6

Audible Noise

Must be free audible noise (buzzes and rattles)(Fo ~ 7KHz frequency range ,input level up to 4V)

7

Sound Pressure Level

85±3 dB @ 0.4,0.5,0.6,0.8, 1.2KHz @ 1W/1.0m

8

Magnet

Φ40*Φ19*8

9

Operating Temperature

-20℃~+60℃

10

Store Temperature

-30℃~+70℃

 

2.Dimensions *Unit: mm

Tolerance: ±0.5mm Except Specified

 

3.Reliability Test 可靠性測試

3.1 Load Test連續負荷測試
Power   功率:2W
Duration 測試時長:48hrs
3.2 High Temperature Test 耐熱測試
Temperature  溫度:+55±2℃
Relative Humidity:20%-25%RH
Duration測試時長:16hrs
3.3 Damp Heat 耐濕測試
Temperature溫度:40±2℃
Relative Humidity  濕度:90%-95%RH
Duration 測試時長:48hrs

All these tests above should be measured after leaving normal temperature for 1hrs.
Sensitivity difference at 1kHz shall be within ±3dB from initial value after test.
以上試驗完畢後必須於常溫狀態下放置1小時再進行檢測。
測試音壓級變化要求1kHz時必須在±3dB以內。

 

4.Electrical And Acoustical Measuring Condition

5.Frequency Response 

 

6.Packing

空运追加6块隔磁板:
500*370mm*2块
500*200mm*2块
370*200mm*2块

海运无需追加隔磁板 

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