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?室內各種自助機等設備擴聲;
?地鐵站閘機、售票機、客服中心等場所;
?滿足用戶桌面如:手機、電腦、音樂播放器等各類近場聽音環境的聆賞需求。
?有源高品質音響,整機內置功放;
?采用高保真20W 3寸全頻率喇叭單元;
?聲音細節還原性好,音質清晰飽滿;
?高靈敏度覆蓋范圍廣;
?全鋁合金外殼,防震效果好;
?產品符合《RoHS限用物質技術標準》要求。
1、TEST CONDITION(測試條件)
Unless otherwise specified,The standard range of atmospheric conditions for marking measurementsand tests are as follows(無特定要求時如下述測試條件): 5℃~35℃ ,25%~85%RH ,860 HPA~1060 HPA.
If there is no doubt about the results, measurement shall be made with in the following limits.(當判定有疑義的場合如下述測試條件): 20℃±3℃ ,60%~70%RH ,860 HPA~1060 HPA.
2、SPECIFICATION OF SPEAKER MODE(喇叭模式規格)
2.1
Rated Impedance
額定阻抗
8Ω±15%
At 1KHz 1.0V
2.2
Resonance Frequency
最低共振周波數
104±20%Hz
At 1.0V
2.3
Rated Power
額定功率
15W
At 11.0V
2.4
Max Power
最大功率
20W
At 12.0V
2.5
Output S.P.L.
出力音壓
88±3dB at 0.1m/0.1w
At(1000Hz average)
2.6
Frequency response curve
實效頻寬
F0~20KHz
Deviation-10dB from average S.P.L
2.7
Rub & Buzz
異常音檢查
Should not be audible buzz and rattle (無異常聲音)
Sine WAVE Between(正弦波入力)
At 2.83V/100Hz~2KHz
2.8
Distortion
失真
≤ 5% THD
At 1KHz 1.0m 1.0w
2.9
Polarity
極性
When a positive D.C current is applied to the voice coil terminal
marked +,The diaphragm shall move
forward.(端子的正極通入電流,振動板向前方運動)
3、Test of reliability (可靠性試驗)
3.1
High temperature test
耐熱試驗
+40±2℃ duration 72 hours ,then removal back to normal temperature for 2
hours.(+40±2℃,72小時實驗后,常溫放置2小時。)
3.2
Low temperature test
耐寒試驗
-20±2℃ duration 72 hours ,then removal back to normal temperature for 2
hours.(-20±2℃,72小時實驗后,常溫放置2小時。)
3.3
Humidity test
耐濕試驗
Temperature +30±2℃,relative humidity 90%~95%,duration 72hours,then removal back to normal temperature for
2hours.(溫度+30±2℃,相對濕度 90%~95%,72 小時實驗后,常溫放置2小時。)
3.4
Load test
連續負荷試驗
Subject samples to White Noise for 72 hours at 3.0W input power must be
normal.(白噪聲15.0W,連續實驗72 小時后無異常。)
3.5
Drop test
跌落試驗
The speaker shall be dropped1 times as shown in the
figure and Cacophony must be normal
(如圖示 1 次跌落實驗后外觀和聲音無異常)
3.6
In Sulation resistance
絕緣阻抗
A VOLTAGEOF 100V.d.c shall be applied for 1 min between a terminal and
a frame,after which measurement shall be made,2 MΩ or MORE
(D.C.100V,1 分鐘后端子與支架間2MΩ以上)
3.7
Vibration test ibration
振動試驗(捆包狀態)
10-55Hz/min
Amplitude:1.5mm
Duration: 2hours
each axes
3.8
Storage temperature
儲存溫度