ER-10C Microphone

Low Noise™ DPOAE Microphone from Etymotic Research.
The ER-10C Low Noise™ DPOAE Microphone has a built-in sound source, eliminating the need for separate earphones. Battery operation eliminates ground loop problems.

Low-noise system for easy-to-interpret otoacoustic emission measurements
Built-in sound sources eliminate the need for separate phones
Switchable amplifier for 0, 20 or 40 dB additional low-noise gain
Easy-to-replace eartips in eight sizes to fit all ear canals
Battery operation eliminates ground loop problems

Microphone:
Sensitivity: 50mV/Pascal (-46 dB re 1V/uBar) 0 dB SPL = 0 dBuV
Limits: +/- 1 dB at 1kHz+/- 4 dB between 200 and 8000 Hz
Output Impedance: 100 Ohms
Undistorted Output: 120 dB SPL (1 Volt) minimum 5mA minimum
Noise Level: 1kHz spot noise typically below -17 dB SPL (1 Hz bandwidth)
Sound Source (2 Channels)

1kHz Sensitivity: 72 dB SPL for 1.0 Volt RMS
Maximum Safe Continuous Voltage: 10 Volts RMS
Impedance: 50K Ohms nominal
Acoustic Polarity: +Electrical = +Acoustic
System Includes: Microphone, Driver-preamp, Carrying case, Eartip samples, Data sheets, Hook-and-loop headband and shirtclip

Scope of delivery: 1 piece
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