ER10X Extended-Bandwidth Acoustic Probe System

The ER-10X Probe System is a state-of-the-art hearing research instrument, designed to address the needs of advanced hearing research applications. While especially suited for otoacoustic emissions, it is flexible enough for a wide variety of hearing measurements. The system is capable of providing multiple stimuli from independent integrated transducers and measuring response with a wide bandwidth, high dynamic range microphone system. It is designed to be integrated into all types of acquisition and measurement systems. The integrated Forward Pressure Level (FPL) calibration system allows for the prediction of SPLs to 20 kHz in humans and even higher in laboratory animals.


Performance highlights include extended high frequency bandwidth, low distortion, low noise, and enhanced calibration capabilities. The system controller contains two discrete channels, allowing for the use of two probes for simultaneous measurements in both ears.


  • Extended Meaurement Bandwidth
  • Three Independent Speakers
  • Very-Low Distortion Amplifiers
  • Two-Channel System Controller
  • High Output Capability
  • Very-Low Noise Microphone
  • Programmable Microphone Gain
  • Real-Time Probe Temp and %RH


  • Unique Mic Channel Access Port
  • Integrated Thevenin / FPL Calibrator
  • Analog Inputs and Outputs
  • USB 2.0 Compliant Interface
  • Selectable Output Limiter
  • PC Utility / Interface Program
  • Power Input: 100-240Vac, 50/60 Hz
  • All-Aluminum Probe Construction

Typical Use Scenario





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