Etymotic Research microPro ER-4 User Manual
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Etymotic Research microPro ER-4 User Manual

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Summary of Contents for Etymotic Research microPro ER-4

  • Page 1 U s e r M a n u a l...

  • Page 2: Warranty

    WARRANT Y Etymotic Research warrants this product against defects in material or workmanship for a period of two years from the date of original purchase from an authorized Etymotic distributor or reseller. Etymotic will repair or replace the defective product at its option if returned within the warranty period to our service facility.

  • Page 3: Proper Care

    ABOUT ET YMOTIC RESEARCH ABOUT ER•4 EARPHONES ER•4 MicroPro earphones were the first high-fidelity, in-ear earphones to use balanced armater drivers.These high definition transducers combine flat frequency response with passive noise isolation. Noise reduction with ER•4 MicroPro earphones occurs naturally when the eartips are sealed in the ear canals.
  • Page 4 ABOUT ET YMOTIC RESEARCH DESCRIPTIONS ER•4P earphones can be used with any audio source without requiring an additional amplifier. ER•4P earphones have 10 dB greater output at high frequencies and 13 dB greater output at low frequencies than ER•4S earphones.The higher sensitivity and enhanced bass of the ER•4P earphones have made them Etymotic’s most popular premium earphones.

  • Page 5: Optional Accessories

    ABOUT ET YMOTIC RESEARCH SYSTEM INCLUDES • ER • 4 MicroPro earphones • 5 ft cord with 3.5 mm stereo phone plug • 1⁄4" stereo phone adapter plug • Assorted eartips • Filter changing tool and replacement filters • Shirt clip •...
  • Page 6 EARTIPS ER•4 MicroPro earphones are supplied with an assortment of eartips that seal most ears. Eartips provide excellent sound reproduction when properly inserted. 3-flange eartips • Clean regularly • Replace every 6-12 months 3-flange small 3-flange large Foam and Glider eartips •...
  • Page 7 INSERTION Sound quality and noise isolation depend on how well the eartips seal. If the earphones seem to lack bass, insert the earphones deeper into the ear canals to obtain a better seal, or try another eartip option. 3-flange eartip insertion •...
  • Page 8 FILTERS ER•4 MicroPro earphones have special filters that shape the frequency response and prevent earwax from entering the earphones. These green filters are located in the end of each earphone and are visible when the eartips are removed. A dirty filter will reduce or block the earphone output. A filter may be blocked without appearing to be dirty.

  • Page 9: Changing Filters

    CHANGING FILTERS Filter removal 1. Remove Eartip. 2. Screw the threaded 3. Remove filter by end of the tool into pulling straight out. the filter to grasp it. Filter replacement 2. Re-attach eartip. 1. Insert a new filter. Then gently press the earphone against a hard surface to secure the filter in place.

  • Page 10: Specifications

    SPECIFIC ATIONS Response Accuracy: ER-4B/4S: 92% ER-4P: 86% Noise Isolation: 35-42 dB Frequency response: 20 Hz - 16 kHz Acoustic polarity: + electrical = + acoustic Transducer type: balanced armature 1 kHz sensitivity (ER-4B/ER-4S): 108 dB SPL for a 0.79 V input (90 dB @ 0.1 V;...
  • Page 11 SPECIFIC ATIONS Response of MicroPro Earphones (measured at eardrum) The above graph indicates that 4P earphones have 10-12 dB higher sound output and slightly more bass than the ER•4S earphones. The dotted red line is the target response of the open ear to a live performance (CD equalization).
  • Page 12 ABOUT ET YMOTIC RESEARCH Etymotic Research is a research, development and manufacturing company that designs products to measure, improve and protect hearing. Etymotic has spent over twenty-five years developing in-ear technology for auditory research, precision monitoring and critical listening. Etymotic has developed many of the innovative hearing technologies available today.

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