AECM206 Headphone Test Fixture

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The AECM206 Headphone Test Fixture is a dense, robust fixture mounted on a resilient base to isolate ambient noise, which can adversely affect measurement integrity. Equally capable in both R&D and production test applications, it is well-suited for testing circum-aural, supra-aural and intra-concha headphones and earbuds. The AECM206’s high level of acoustic isolation also enables the measurement of noise-reduction performance of ANC (active noise canceling) headphones, as well as the evaluation of hearing protection ear muffs.

The AECM206, in conjunction with APx Series analyzers, accessories and software, provides the user with a complete system enabling precise and repeatable electro-acoustic testing of headphones and insert earphones (earbuds).

The Headphone Test Fixture is shipped fully-assembled and ready to use upon arrival, with occluded ear simulators (microphones with acoustic couplers) and preamplifiers installed and connected to BNC-terminated coaxial cables. The microphone/preamplifier pairs are TEDS-compliant, CCP-powered and calibrated. TEDS—Transducer Electronic Data Sheet—programming allows microphone identification and calibration information to be read by a connected instrument, such as the Audio Precision APx1701 Transducer Test Interface.

Contact details

Audio Precision, Inc.

5750 S.W. Arctic Drive
97005 Beaverton
United States of America

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KEY SPECIFICATIONS
Height
37.8 cm [14.9 in]

Width
20 cm [7.9 in]

Electrical Connector
BNC

Weight (test fixture only)
9.5 kg [21 lbs]

Operating Temperature (electronics)
−40° C to 70° C
[−40° F to 158° F]

Operating Humidity
0% to 90% relative humidity, non-condensing

Excitation Voltage
20 Vdc to 32 Vdc

Constant Current Excitation
2 mA to 20 mA

Output Bias Voltage
10 Vdc to 14 Vdc

Output Impedance
< 50 Ω

Output Voltage
± 8 V

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A culmination of 30 years’ experience making test equipment recognized as the standard of the audio...

Audio Precision, Inc. 5750 S.W. Arctic Drive 97005 Beaverton United States of America