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Test & measurement
Calibrated headphone test fixture, low noise capsules, USB audio plug&play setup, Configurable jumpers
Introducing "EARS", the Earphone Audio Response System. miniDSP EARS brings headphone measurement capability to "the masses" - it's just an extremely affordable measurement rig for headphones and IEMs that we've built using the same technology as our popular UMIK-1 calibrated measurement microphone. Alternatively one could use EARS as a binaural microphone with USB audio streaming.
Each pair of EARS has two microphone capsules mounted in a minimal "dummy head". Measurement output is via the driverless USB connection. The EARS are powered from the USB so there is no need for an external power supply. To measure headphones, just mount your headphones on the rig and run a measurement sweep using your headphone amp and favorite measurement program (e.g. Room EQ Wizard). The supplied calibration file corrects for the response of the microphone capsule and the ear. The miniDSP EARS is the perfect tool for creating EQ filters for the miniDSP HA-DSP headphone amplifier or for any other headphone system with EQ capability.
Unique Calibration File Download
All miniDSP EARS are calibrated with a unique calibration file. To download the calibration files, look for the 7 digit Serial Number found on the bottom of the EARS.
All EARS are calibrated with unique left and right calibration files. One of the compensation types will also need to be chosen (see the User Manual for details). To download the calibration files, look for the 7 digit serial number found on the EARS unit.
Enter the serial number at the product page of MiniDSP EARS. Your calibration files will automatically download in most browsers. If not, click on the links provided to manually download.
What's in the box?
Capsule Type & Polar pattern
6mm electret, Omni-Directional
20 Hz - 20kHz +/-1dB with calibration loaded
USB Audio class 1.0
Driverless interface for Windows, Mac & Linux
Resolution & Sample rate
24bit ADC @ 44.1 or 48kHz
Max SPL for 1% THD @ 1kHz
133dB SPL @ 0dB gain setting
Output noise level at max IGPA
Unique microphone calibration .txt file referenced to the Serial Number Includes on Frequency / Amplitude / Sensitivity drift
USB Powered (5V) - Blue LED indicates unit under Power