Microphone Testing

Specifications PureSound Test System (Abstract)

Stepped Sweep Generator	• 2 Independent Channels • Frequency Resolution 1 – 500 steps • Frequency Range 20 Hz – 20 kHz • Level Range -63 dBV to +26 dBV in 0.1 dB steps • Level Accuracy < ±0.1 dB @ 1 kHz
Sweep/Chirp Generator	• 2 Independent Channels • Frequency Range 5 Hz – 6 kHz • Level Range -63 dBV to +26 dBV in 0.1 dB steps • Level Accuracy < ±0.1 dB @ 1 kHz
Analyzer	• 2 Independent Channels • Frequency Range 20 Hz – 20 kHz • Level Range –60 to +40 dBVp (0.1 mVp to 100 Vp) • Level Accuracy < ±0.1 dB @ 1 kHz • Residual Distortion< -86 dB @ level > -20 dBV • Residual Noise < -100 dBV • Residual Input Idle Channel Noise < -18 dBrnc • Phase Accuracy (A-B) ±1 deg • Residual Interchannel Crosstalk typ. < -80dB @ level > -20 dBV • Selectable Input Impedance per Channel 100 kohm, 600 ohm • Phantom Power 15/48 VDC
General	• Dimensions 1 rack unit high 483 x 318 x 44 mm (19“ x 12.5“ x 1.75“) • Weight 7 kg (15 lbs.) • Control InterfacesGPIB (IEEE-488.2), RS232 • Mains Power 100 - 230VAC / 50 - 60 Hz • Calibration interval 1 year recommended • Operating Temperature+5 to +45 °C (+40 to +110 F) • Relative Humidity< 90 % non condensing
Functions	• Frequency Response • Distortion (THD, 2. - 5. harmonics)) • Impedance Response • Resonance Frequencies f0 • Sound Pressure Level dBSPL • Speaker Polarity • Rub&Buzz defects analysis with a 100% correlation to the human ear • Thiele/Small Parameters • DC Resistance