Crutchfield Customer Review (What's this?)
Pros: Sound is great.
Cons: Fit can be tricky.
Etymotic Research ER4XR Extended Response - Snug fit offers some of the best noise isolation available
From Etymotic: Earphone Insertion
The Etymotic Research ER4XR earphones offer superior noise isolation, clear sound, and strong bass.
There's a lot of history behind the Etymotic Research ER4XR in-ear headphones. This is the latest generation of Etymotic's famed ER4-series earphones that debuted over 25 years ago. That original model carried a reputation of reproducing some of the cleanest, most-accurate sound ever heard. This "Extended Response" version has been tastefully tweaked to accentuate the low-end frequencies.
The Etymotic Research ER4SR Studio Reference in-ear headphones have a more neutral sound signature.
To shut off outside noise and reduce vibration caused by airflow, you insert the ER4XRs deep into your ear canal. They fit like a pair of earplugs and block out 35-42dB of outside noise — some of the best noise isolation numbers I've ever seen. The tight seal also helps you get a stronger bass response.
Each metal earpiece houses a single balanced armature to deliver a clear sound across a wide frequency range. There is also a slight lift to the low-end. While your music will largely sound true to the recording, the bass boost resembles the extra action you'd hear from a set of speakers playing in a room — rather than an anechoic chamber.
The ER4XR in-ear headphones are solidly built and designed for portable use. Connect the 5-foot detachable,reinforced cable to your smartphone or portable music player and listen at home, work, or on the train. Just don't use them while you walk down the street — the noise isolation works so well it could be unsafe.
Etymotic includes five pairs of ear tips to ensure you get the best fit for your ears. You'll find three sizes of their triple-flange silicone tips and two sizes of their foam tips. All are designed to fit snugly and create an airtight seal for optimum bass response.
Matt, Spokane, WA
Average Customer Review(s):
Pros: Sound is great.
Cons: Fit can be tricky.
The ER4XR are an upgrade from the classic ER4 which I used to own many years ago. These are reported to be extremely accurate per Etymotic's measurements. They sound excellent, but you have to work with them a bit to find the ear tip that suites you and you must understand that these are inserted deeply into your ears in order to get them to sound correct. The bass is all there, but it's not throbbing boom car bass, so bass heads might want to look elsewhere. I have earphones that cost over $1000 and even though the expensive ones are better, the ER4XR is not very far behind .
Pros: Sound almost as good as more expensive phones
Cons: Must be inserted deeply
|Mic For Taking Calls||No|
|Frequency Response||20-16k Hz|
|1/4-inch Adapter Included||Yes|
|Parts Warranty||2 Years|
|Labor Warranty||2 Years|
Overview: The Etymotic Research ER4 MicroPro series of in-ear headphones utilize balance armature micro-drivers to deliver excellent sound quality. These reference-quality earphones deliver an unsurpassed 92%+ frequency response accuracy from 20 Hz to 16 kHz. A Performance Certificate is included with each pair of headphones to indicate the level of performance. The headphones come with a variety of ear tips for superb noise isolation, a plug adapter, a clothing clip, wax filters, and a zippered storage case.
ER4 Model Breakdown: There are two ER4 earphone models. This pair is the ER4XR which is Etymotic's new Extended Response earphone. The ER4XR's channels are matched within 1dB from 100Hz to 10kHz, and delivers a slight performance boost in the lower frequencies. The ER4SR Studio Reference earphone is much like the ER4XR, but offers a flat response across all frequencies.
Balanced-Armature Drivers: The ER4 earphones use high-performance, precision matched ACCU-Driver balanced-armature micro-drivers to achieve a 98 dB SPL sensitivity, and an 92%- response accuracy from 20 Hz to 16 kHz.
Noise Isolation: The ER4s have a closed-back design and noise-isolating ear tips to achieve a 98% reduction (35dB to 42dB) in ambient noise. The 3-flange silicone ear tips work with most sizes of ear canals to ensure a comfortable fit and a proper seal. The foam ear tips are heat-sensitive and will expand inside your ear canals to perfectly form to the contours of your ear to block out ambient noise. The earphones also come with an option for custom-fit earpieces.
Cable: The ER4 earphones have an attached 60" twisted cable with a right-angled 3.5mm plug. There is no in-line remote or microphone on this model. The cable attaches to the ear buds via a modified MMCX connector, making them removable and replaceable as needed.
ACCU-Filter: The Etymotic ER4 earphones are equipped with special ACCU-Filter wax filter to smooth the frequency response and prevent earwax from entering the earphones. The filters are placed at the end of the ear bud nozzle, and should be changed when they become clogged with ear wax. A filter removal tool is included in the package.
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Recommended by "the absolute sound" magazine. Bought to use with my Astell&Kern Hi-res player, AK Jr. [ Dale Aug 29, 2017 ]