ES-1A Audio Sound Generator1A
Specifications
ES-1A扬声器测试仪/音频发生器
集成f0/阻抗测量和振荡器的音频发生器。通过96kHz/24bit高精度DSP，支持高质量信号的精确测量。
ES-1A功能
1. 一种利用DSP实现扬声器工作特性精确测量和测试的多功能仪器。
2. 全包式仪器，易于设置，在同一屏幕上显示设置条件和测试结果。
3. 由于这是一款紧凑型多功能机器，具有出色的便携性，因此可以方便地携带在车内，并在安装状态下进行检查（噪音、f0、极性）。
4. 类型A:50W/类型B:20W可用于不同的输出，具体取决于您的应用。
ES-1A能力
1. 自动/手动扫频切换快速方便，可在任何地方测试扬声器。
2. 一个系统的简单设置，您可以同时测量f0和谐振点阻抗。
3. 阻抗可以在您指定的频率下测量，并可以自动做出各种判断。
4. 附带的麦克风可以让你做出极性判断，数据查看器功能可以帮助你看到响应波。
ETANI Electronics Co., LTD
1.Sinusoidal Free Oscillator
Settings Frequency 10~39.99k[Hz] Setting unit 1/768 oct
Output Voltage Speaker 20.0[V],max Setting unit 1[mV]
Line Output 2.0 [V],max Setting unit 1[mV]
Measurements Power Apparent Power Resolution 1[uW]
Impedance Absolute Value 200.0[Ω],max Resolution 0.1[Ω]
Phase ±180[deg] Resolution 0.1[deg]
2.Sinusoidal Automatic Sweep Oscillator
Settings Frequency Range 10~39.99k[Hz] Setting unit 1/768 oct
Output Voltage Speaker 20.0[V],max Setting unit 1 [mV]
Line Output 2.0 [V],max Setting unit 1 [mV]
Sweep Time 0.1~100[s] Setting unit 0.1[s]
Repeating Setting Single,Continuous
3.SpeakerF0 Search
Settings Search Center Freq 10~39k[Hz] Setting unit 1/3 oct
Search Freq Range 1oct,2oct,1decade,2decadesdecade
Output Voltage Speaker 20.0[V],max Setting unit 1[mV]
Repeating Setting Single,Continuous
Measurements F0 Frequency Resolution 1/768oct
F0 Impedance Resolution 0.1[Ω]
4.Speaker Z0 Measurement&Test
Settings Measurement Frequency 10~39k[Hz] Setting unit 1[Hz]
Sampling Point 4 Frequencies,max
Tolerance Specification 1~20[%] Setting unit 1[%]
Measurements Z0 Impedance Resolution 0.1[Ω]
5.Speaker Polarity Judgment
Settings Frequency Range Full-Range,Sub-Woofer,Low,Mid,High,
Pulse Width 780[us],7.8[ms],2.6[ms],780[us],260[us]
Output Voltage Speaker 20.0[V],max, Setting unit 1[mV]
Mic Input Polarity Positive/Negative changeablehangeable
Repeating Setting Single, Continuous
Measurement Polarity Positive/Negative/Impossible
Level Under level/Over level
Response Wave View Level normalized response wave
Time-axis100 dot Level ±20 dot
6.Common Specifications
AC Power Supply Input 85 to 264VAC/47 to 63Hz
(When using the included AC/DC adapter)adapter
Power Input of Main Unit 15VDC/13A(Max.)
Power supply uses external AC/DC adapter
Dimensions (DxWxH) Main Unit 220mm x 140mm x 94mm
200W AC/DC adapter 210mm x 85mm x 46mm
100W AC/DC adapter 167mm x 67mm x 35mm
Weight Main Unit about 1.8kg
200W AC/DC adapter about 1.0kg
100W AC/DC adapter about 0.6kg
AC cable not included
Operating temperature/humidity -10～+50degrees Celsius／10～90%RH
Power Amplifier Output Banana plug compatible jack 2P
BTL output
(Caution)
Since the DC component is not cut off both the +/- output terminals,+/
it is prohibited to short-circuit the output terminals,and short-circuitcircuitshort
to metal parts such as the ground and other connectors.
Max. Output (THD:1.0%) 42W@8ohm/42W@4ohm (using 200W AC/DC Adapter)
15W@8ohm/20W@4ohm (using 100W AC/DC Adapter)00W
Load Impedance 2ohm or more
Line Output RCA jack UNBALANCE
Max. Output 2.2Vrms@1kHz
Load Impedance 10kohm or more
Power Amplifier/Line Output,select either or,
Microphone Input φ3.5mm mini jack/Built-in powered electret microphone (3.0V)lectret
For judging polarity of speaker
PC Communication φ3.5mm mini jack Serial Interface
AD/DC Adapter Input 4 pin power DIN
Display 128 x 64 dot black & white/Blue graphic LCD
7.Measurement Precision Measurement Accuracy
Sampling Frequency 96 kHz
AD/DA Resolution 24 bit
Signal Output Frequency Range 10.0Hz～39.9kHz
Frequency setting resolution about 1/768 octave 0.9Hz@1.0kHz
Frequency Accuracy +/-150ppm +/-0.15Hz@1.0kHz0.15Hz@1.0kHz
Impedance Measurement Accuracy
Output Voltage 1.0V@8.0ohm 50Hz to 10kHz +/-0.20ohm/2.02.0deg
20Hz to 15kHz +/-0.30ohm/3.03.0deg
10Hz to 25kHz +/-0.50ohm/5.05.0deg
Specifications are subject to change without noticenotice. ES-1A Specifications