IEA Earphone Testing Automation耳機成品測試系統
Special designed for Earphone Acoustical Measurement Automation System.
Application：

• Stereo Earphone

• Insert Type

• Intra Concha Type

• Issue IEC-60711 and ITU-T P.57 Type 3.3 Ear Pinna Simulator

Features：

• Precision Repetition Mechanical Control System.

• High insulation against airborne noise

• PC remote control easy to use.

• Production Line & QC testing system.

Size：L58cm, H44cm, W42cm
Net Weight：~ 35Kg.

Test Items：
According to IEC-60268-7 and EN-50332-1 & 2

• Frequency Response L/R

• Sensitivity and L/R difference

• Total Harmonics Distortion.

• Noise Rub and Buzz.

• Crosstalk.

• Noise Cancellation Ability.

• Fully QC Control functions.

• Index Meas. time typical< 6 sec. L/R

TECHNICAL SPECIFICATIONS GENERATOR

• Two channels 24 Bit sigma-delta D/A Converter

• Frequency range：1Hz-90kHz

• Frequency accuracy：>0.01%

• Frequency resolution：0.01Hz

• Output impedance：660Ohm

• Max output level (Sine)：17dBu (5.5Vrms)

• Attenuation：0.1 dB steps to full mute

• THD+Noise(Sine)：0.008%

• Digital out：SPDIF

ANALYZER

• Two channels 24 bit sigma-delta A/D Converter

• Two channels Balance Input XLR/BNC

• Input range：+40 ÷ -40dBV

• Max input acceptance：+40dBV (283Vpp)

• Input impedance：128kOhm (5.6kOhm mic)

• Phantom power supply：24V

Measuring Power Amplifier

• Frequency Response：10~ 50KHz.

• Max. Power Output：10Watt RMS. 8 Ohm Loading.

• THD+Noise(Sine)<0.01% (at 1KHz)

Input Microphone Power Module (Option)

• Frequency Response：10~ 100KHz.

• Polarization Voltage：200VDC (LEMO Connector, B&K & GRAS Microphone can be Use)

• THD+Noise(Sine)<0.001% (at 1KHz)

IPC SYSTEM RESOURCES

• CPU INTEL CORE II MORE, RAM1G, HD>250G, Two free IEEE1394 port and

• USB port, 7 LCD Panel Monitor, Window XP or Vista request.