Etymotic Research ER4XR ER4XR Extended-Response Precision-Matched In-Ear Earphones
Supplies and Accessories
The Etymotic Research ER4XR Extended-Response Precision-Matched In-Ear Earphones are the in-ear earphones 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 precision matched to within an industry leading 1dB across all frequencies from 100Hz to 10kHz. The new ER4XR incorporates sleek, anodized, laser-etched aluminum bodies and braided, reinforced 5ft detachable cables. The ER4XR is ideal for anyone looking for exceptional sound quality with just the right amount of low-end enhancement. Included with every pair of ER4XR earphones is an industry-exclusive channel matching compliance graph signed by the Etymotic engineer who precision matched and custom tuned the balanced-armature drivers. Every pair of ER4XR earphones is assembled and tuned in the United States.
High-performance balanced armature drivers are precision matched to within 1dB
Specially designed for uncompromising accuracy in the mid to high frequencies with a bit of extra presence in the lower end
Sleek, anodized, laser etched aluminum body & braided, reinforced detachable 5ft cables with custom MMCX connectors
35dB–42dB of noise isolation with a max output of 122dB
2-year manufacturer’s warranty provided for products purchased from authorized resellers
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