2 in stock (can be backordered)
Over 30 years ago, Etymotic invented noise-isolating, in-ear earphones. Etymotic’s original design, developed for auditory research and hearing testing, used balanced –armature receivers and established these speakers as the gold standard for high-definition, in-ear earphones. ER4 earphones were the first high-fidelity, noise isolating in-ear earphones to use this technology in a consumer earphone, and are recognized as the world leader for response accuracy to which all other earphones are compared. After more than 20 years, these reference-quality earphones are still the choice of serious sound engineers, audiophiles and musicians.
ER4XR is the earphone for music lovers and hi-fi enthusiasts who want uncompromising accuracy in the midrange and high frequencies, but appreciate a bit of extra presence in the lower end. Like the ER4SR, the ER4XR is built with precision machined, anodized and laser-etched aluminum bodies and features user-replaceable detachable cables. The ER4XR also incorporates the stringent channel-matching standard used in the ER4SR. The ER4XR is ideal for anyone looking for exceptional sound quality with just the right amount of low-end enhancement.
World leader in sound reproduction
Professional quality and reliability
First earphones to completely seal the ear
What’s In the Box?
|Frequency Response||20 Hz – 16 kHz|
|Transducers||High performance, balanced armature micro-drivers|
|Noise Isolation||35-42 dB|
|Impedance (@1kHz)||45 Ohms|
|Sensitivity (@1 kHz) SPL at 0.1v||98 dB|
|Maximum Output (SPL)||122 dB|
|Cable||5 ft Detachable|
|User Replaceable ACCU-Filters||Yes|