Shure E4 Earphones

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Shure is now shipping its new sound-isolating E4 earphones. Equipped with high-definition drivers and tuned-port technology, the E4s join an existing line of professional Shure isolating earphones, which include the E2, E3 and E5 models.

Each set of E4 earphones comes with earpieces outfitted with a high-energy/low-mass micro-transducer, providing wide-frequency stereo sound, sonic accuracy and total isolation from outside noise. Sensitivity at 1 kHz is rated at 122 dB SPL/mW, while impedance is 110 ohms (also at 1k). Gold-plated stereo output connectors with a 1/8-inch plug are also part of the package, and 61 inches of cable is supplied.

The natural design of the stereo E4s rests comfortably within the ear, providing a tight seal for sonic isolation and a secure fit. Like all other professional-grade E Series earphones, the E4s are capable of being used with foam, flex or triple-flange accessory sleeves. Each E4's 1/8-inch-to-1/4-inch adaptor plug makes it available for use in a wide variety of other personal audio applications.

For more information about Shure, visit www.shure.com.