Etymotic Research
Etymotic ER4 XR
The Etymotic ER4XR earphones offer a premium in-ear monitor experience for those who appreciate accuracy with a touch of enhanced bass. Featuring a single Balanced Armature driver, these earphones deliver exceptional midrange and treble reproduction, while adding tasteful presence to the lower frequencies for a more engaging sound. Crafted from anodized aluminum with precision machining, they ensure durability and a slim profile. Etymotic's renowned passive isolation provides significant noise attenuation, making them ideal for audiophiles and music lovers seeking an accurate yet enjoyable listening experience.
$309.99
Owner Satisfaction
4.5
/ 5
Category Rank
1326
/ 6142
#1326 in Headphones
Price vs Category Average
-47%
Below average
Frequency Response
2016
/ Hz – kHz
Who it's for
- Pinpoint Audio Accuracy
- Superior Noise Isolation
- Built for Longevity
Who should skip it
- Challenging Deep Fit
- Intimate Soundstage
- Noticeable Cable Noise
Key Specs
Frequency Response
20 Hz – 16 kHz
Impedance
45 ohm
Sensitivity
98 dB
Driver Type
Balanced Armature
Earcup Material
Anodized Aluminum
Passive Noise Isolation
35-42 dB
Cable
User-replaceable, detachable
Connectivity
Bluetooth
Features
- Pioneering noise-isolating in-ear design
- High-definition audio standard
- Wireless Bluetooth connectivity
- Integrated call and playback controls
- Designed for audiophiles
- Portable and convenient
What customers say
Customers consistently praise the Etymotic ER4 XR for its exceptional sound accuracy and remarkable passive noise isolation. Listeners appreciate the detailed, balanced audio presentation, enhanced by a subtle bass response that adds warmth without compromising clarity. The deep insertion design, while requiring some adjustment, provides an unparalleled ability to block external noise, creating an immersive listening experience. This combination of pristine sound and effective isolation makes the ER4 XR a highly valued choice for critical listening and enjoying music in any environment.
Know before you buy
The ER4XR, or 'Extended Response' model, is specifically tuned to provide a slight boost in the lower frequencies. While it maintains the signature accuracy and detail of the Etymotic line, it offers a warmer, more engaging sound profile compared to the strictly neutral ER4SR.
These earphones are industry leaders in passive isolation, blocking out between 35 and 42 dB of ambient noise. Because they rely on a deep-insertion fit rather than active electronic cancellation, they are exceptionally effective at silencing consistent background sounds like airplane engines or office chatter.
Yes, the ER4XR features a detachable cable design. This allows you to easily replace the cable if it becomes damaged or if you wish to switch between the included Bluetooth connectivity and a wired connection.
With an impedance of 45 ohms and a sensitivity of 98 dB, the ER4XR can be driven by most smartphones and laptops without needing a dedicated external amplifier. However, using a high-quality DAC or amplifier can help you extract the maximum level of detail and clarity from high-resolution audio files.
The deep-insertion design is necessary to achieve Etymotic's signature sound and isolation, but it can feel intrusive to those unaccustomed to it. Most users find that once they select the correct ear tip size, the lightweight aluminum housings become comfortable enough for extended wear.
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