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1 review. ER3C earphones are the next generation of insert earphones, replacing ER•3A earphones, which have been the worldwide standard for audiometric insert earphones since 1985. The frequency response and performance characteristics of ER•3C earphones are virtually identical to the original ER•3A earphones at all audiometric frequencies.
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ER-3C earphones are intended for use with audiometric equipment used in hearing testing in audiology clinics, auditory research and screening in industrial and educational settings. They are well suited for unfavorable test environments that may have high ambient noise levels.
As low as $632.50. SKU. NS-7447. ER3C™ earphones are the next generation of insert earphones, replacing ER3A earphones, which have been the worldwide standard for audiometric insert earphones since 1985.
Etymotic Research 3C Insert Earphones (50 Ohm) Product Code: ER3C-50. 50 ohm. Incorporates “touch-proof” electrical connection for safety. Duplicates ER•3A smooth frequency response. Provides 30+ dB external noise exclusion – equivalent to a single-wall booth when used with deeply-sealed foam eartips. Provides 70+ dB isolation ...
ER3C earphones are the next generation of insert earphones, replacing ER•3A earphones, which have been the worldwide standard for audiometric insert earphones since 1985. The frequency response and performance characteristics of ER•3C earphones are virtually identical to the original ER•3A earphones at all audiometric frequencies.
INTRODUCTION AND INTENDED USE ER-3C earphones are the next generation of insert earphones by ™ Etymotic Research, designed to replace Etymotic’s ER-3A Tubephone ® earphones, which have been the worldwide standard for audiometric insert earphones since 1985.
Etymotic Research 3C Insert Earphones (50 Ohm) Product Code: ER3C-50. 50 ohm. Incorporates “touch-proof” electrical connection for safety. Duplicates ER•3A smooth frequency response. Provides 30+ dB external noise exclusion – equivalent to a single-wall booth when used with deeply-sealed foam eartips. Provides 70+ dB isolation ...
