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Etymotic Research ER-4 MicroPro Earphones

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Product Description

ER-4 MicroPro Earphones

Our pricing for this product is the "MAP Pricing."  This means that the prices shown here are the "minimum advertised prices" permitted by the manufacturer.

 Manufacturer's Description:

Next Best Thing to Live Music

    * Transparent, reference-quality sound
    * For audiophiles, performing musicians and recording engineers
    * For mixing, monitoring and critical listening
    * Accurate real-ear response
     *Unsurpassed isolation from outside sound

The ER•4 MicroPro™ earphones are the next best thing to live music, with noise isolation far surpassing that of active noise-canceling earphones. The ER•4s require NO batteries, and can be plugged into any audio source. Their external noise exclusion -- 35 dB with 3-flange eartips, 42 dB with foam eartips -- allows you to hear the full dynamic range of recordings without having to play them at unnaturally high and unsafe levels. The earphones come in three styles: ER•4B, ER•4S, ER•4P.

 System Includes

    * ER•4 MicroPro earphones
    * 5 ft. cord with 3.5 mm stereo phone plug
    * 1/4" stereo phone adapter plug
    * 4 triple-flange eartips (standard size)
    * 2 triple-flange eartips (small)
    * 4 foam eartips
    * 4 glider eartips
    * Filter changing tool
    * 4 replacement filters
    * Shirt clip
    * Pouch
    * Storage box

Which ER•4 is Right for You?

ER•4B (Binaural) earphones may be preferred by those who want to hear the slight high-frequency boost which is standard practice in CD and vinyl recordings (5 dB at 10 kHz). ER-4B earphones were originally designed to provide an eardrum-pressure frequency response closely mimicking that of the open ear in a diffuse sound field, making them ideal for any material that has not been equalized for loudspeaker playback, such as properly equalized binaural recordings. Many early listeners found the 4B earphones a bit bright, which led to the introduction of the ER-4S.

ER•4S (Stereo) earphones were designed to compensate for the high frequency emphasis in all CD recordings, in order to provide accurate sound reproduction. Performing musicians often use them as in-ear monitors because the response of the ER•4S matches the response of most typical monitor loudspeakers. The high accuracy and exceptional sound isolation of the ER•4S have made these earphones popular with musicians, recording engineers and audiophiles. ER•4S earphones can be used with a headphone amplifier when using low power portable devices.

ER•4P (Portable) earphones can be used with portable CD, MP3, DVD and other players without requiring an additional amplifier. As compared to the ER•4S, the ER•4P has 10 dB greater output at high frequencies and 13 dB greater output at low frequencies. The higher sensitivity and enhanced bass of the ER•4P have made it the most popular earphone for most uses.

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