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Etymotic Research ER4S MicroPro Reference Earphones

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Etymotic Research ER4S MicroPro Reference Earphones

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4.3 out of 5 stars See all reviews (25 customer reviews) | More about this product

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Product Details

Product Dimensions: 7 x 2 x 7 inches ; 7.2 ounces
Shipping Weight: 1 pounds (View shipping rates and policies)
Shipping: This item is also available for shipping to select countries outside the U.S.
ASIN: B000300Y9O
Item model number: ER4S

Average Customer Review: 4.3 out of 5 stars See all reviews (25 customer reviews)

Date first available at Amazon.com: June 27, 2007

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Product Description

From the Manufacturer
The ER-4S MicroPro noise-blocking earphones from Etymotic Research offer realistic sound reproduction and noise isolation that far surpasses that of active noise-canceling earphones. The ER-4S earphones--which require no batteries--can be plugged into any audio source. They can be used with portable CD, MP3, DVD, and other players without an additional amplifier.

The ER-4S earphones were designed to match the response of the ear, creating nearly perfect sound reproduction. They reduce external sound naturally by sealing your ear canals, without the added weight, bulk, or external power supply required for active noise-canceling. Their external noise exclusion (up to 33 dB using the supplied 3-flange eartips and 41 dB with foam eartips) lets you hear the full dynamic range of recordings without your having to play them at unnaturally high and unsafe levels.

The ER-4S comes with everything needed for audiophiles, performing musicians and recording engineers .

See how the ER-4S measures up in response accuracy.

ER-4S (Stereo) earphones were designed to compensate for the high frequency emphasis in all CD recordings, in order to provide accurate sound reproduction. Performing musicians often use them as in-ear monitors because the response of the ER-4S matches the response of most typical monitor loudspeakers. The high accuracy and exceptional sound isolation of the ER-4S have made these earphones popular with musicians, recording engineers and audiophiles. ER-4S earphones can be used with a headphone amplifier when using low power portable devices.

Noise reduction with ER-4 MicroPro earphones occurs naturally from the inserts. Other earphones with active noise-cancelling add circuit noise and require bulky batteries.

In-the-ear, high fidelity transducers combine flat frequency response with isolation from external noise.

The white 3-flange eartips provide 35 dB average external noise isolation. Foam eartips provide 41 dB average external noise isolation. Lowering surrounding noise allows the listener to hear the full dynamic range of recordings at lower reproduction levels.

ER-4 MicroPro earphones are ideal for a variety of consumer uses such as personal CD and DVD players, MP3 players, and computers. Professional uses include mixing and stage monitoring in the studio and during live performance.

What's in the Box
ER-4S MicroPro earphones, a 5-foot cord with 3.5 mm stereo phone plug, a .25-inch stereo phone adapter plug, six 3-flange eartips, 10 foam eartips, a filter-changing tool, 4 replacement filters, a shirt clip, a zippered pouch, a storage box, a user's manual, and warranty information.

Product Description
The ER-4 MicroPro earphones are the next best thing to live music, with noise isolation far surpassing that of active-noise-reduction earphones. The ER-4's require NO batteries, and can be plugged into any audio source. Their 20-25 dB of external noise exclusion allows you to hear the full dynamic range of recordings without having to play them at unnaturally high and unsafe levels.The ER-4S (Stereo) is the musician's choice. Extremely detailed, well-balanced, and tight bass are just a few words to describe their awesome sound. These phones offer a sonic checkout from the real world!

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Customer Reviews

25 Reviews

5 star:		(17)
4 star:		(4)
3 star:		(1)
2 star:		(1)
1 star:		(2)

Average Customer Review

4.3 out of 5 stars (25 customer reviews)

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Most Helpful Customer Reviews

71 of 82 people found the following review helpful:

5.0 out of 5 stars be sure you get what you want, October 6, 2004

By	Shakir A. Akbari "hierophanta" (Chicago, IL USA) - See all my reviews (REAL NAME)

these earphones come in 3 types. the type being sold here are (type-s) are ment for home use with a stereo. etymotic makes a set of these made for portable use- the difference? the portables will sound fine from your portable cd player- the stereo set will sound great from your stereo be will be under powered from your portable device.

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23 of 25 people found the following review helpful:

5.0 out of 5 stars Excellent Sound, But they Do Take Getting Used To, May 7, 2005

By	dakotamoviefan (South Dakota) - See all my reviews

The sound produced from the Etymotic ER-4P headphones is excellent, but they do take some getting used to. When I first purchased the Etymotic ER-4P headphones I was under the impression they had to be inserted far enough into your ear canal that they almost scratched your brain. But they really don't have to be inserted that far. I have learned that if you moisten them, insert them quickly, with your mouth slightly open, you get a more consistently comfortable fit, tight seal, and improved resonance. I understand other reviewers complaints of a lack of bass, and I do click on the iPod EQ bass for a slightly fuller sound, but the bass on the Etymotic ER-4P's is intended to be a natural sound, not a boomy bass that is so prevalent with less expensive headphones.

It seems to me that I can hear sounds in music that I never even knew existed with other headphones. I have listened to many of my favorite 70's hits on my iPod, and the Etymotic ER-4P's give them a whole new life. For instance, John Lennon's #9 Dream sounds especially good, and when Carly Simon sings I can hear her enunciate each consonant as they leave her lips, and there are bongo drums I had never heard before in the Bee Gee's disco hit, More Than a Woman !! The Etymotic ER-4P's are a great pair of earbud headphones, but they may require patience and a moderate break-in period to get used to the feel of them. I would say the Etymotic ER-4P's easily rival the sound of my Bose Quiet Comfort II headphones.

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12 of 12 people found the following review helpful:

5.0 out of 5 stars Great with iPod, January 12, 2005

By	Ethan T. Bold (San Francisco, CA) - See all my reviews (REAL NAME)

I've been using the Etymotic ER-4P for about 6 months and I find them indispensable. I spend 2-3 hours a day commuting by bus and train, and the combination of a 20GB iPod with my Etymotic ER-4P is an essential commute accessory. They reduce ambient noise (even nearby loud conversations and normal train noises) to a quiet rumble, such that I can listen to music without feeling like I have to crank up the music to drown out those ambient noises.

I'm not an audiophile by any means, but I do listen to a lot of music. This setup (20Gb 3rd gen iPod + ER-4P) is by far the BEST listening environment I've ever experienced, way better than my crappy home stereo. The sound quality from these headphones, along with the acoustic isolation from outside noises, brings out parts of songs I've never heard before. I prefer listening to songs on these headphones over anywhere else, really.

I can't compare these to the ER-6 or the ER-6i, etymotic's lower priced alternatives. I sprung for the ER-4P's without trying either of those, but I have no regrets spending the extra $100 on them. Like the other reviewer said, just make sure you get the ER-4P if you're getting these for portable listening, as its impedances are tailored differently for portable devices.

These earphones do have to slide into your ear canal, which may freak some people out. I use the 3-flange tip (rather than the foam one, which felt kinda scratchy to me) and it took some getting used to. Allow yourself a few days to get over being weirded out by the feeling. And I'm not even going to get into the ear wax issues. ugh. Still, they're awesome.

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Most Recent Customer Reviews

5.0 out of 5 stars reintroduce yourself to mid
These headphones come from a brilliant premise - why invest in shrinking and fitting noise cancelling technology when earplugs have worked for years. Read more

Published 1 month ago by Jesse Drennan

5.0 out of 5 stars 10 year user endorses Etymotic ER4S
I got my first ER4S set 10 years ago and a second set a couple of years later to ensure that I would not be without some ER4S. Read more

Published 3 months ago by D. Musicant

4.0 out of 5 stars Great for the office audiophile
I got the ER4S because I needed a pair of high impedance headphones that could go unnoticed in the office while providing a decent load for a vacuum tube headphone amplifier. Read more

Published 6 months ago by .

5.0 out of 5 stars A decade with the ER4S
My pair of ER4S is about to turn 10 years old. I thought enough time had passed to finally write an Amazon review. Heh heh. I was the second person on Headwize. Read more

Published 10 months ago by Reticuli

5.0 out of 5 stars Delivers what it promises
This is my second set of Etymotic earphones. They perform as described, delivering superb stereo reproduction. I wore my first set daily 4-5 hours for 2+ years. Read more

Published 11 months ago by C. Crawford

5.0 out of 5 stars Superb, natural sounding, reference quality earphones!
Etymotic Research ER-4S High fidelity earphone

I just received my ER-4S earphones, purchased at the bargain price of $159. Read more

Published 11 months ago by The Imagemaker

4.0 out of 5 stars Pretty good ear canal phones
The headphones come with a great case and a selection of three silicon earpieces. The earphones must really be shoved deep into your ears My ear canals are large so that it is... Read more

Published 15 months ago by L. Topper

5.0 out of 5 stars Etymotic Research ER4S
This is my third set of these earphones. As a production Sound Mixer I first bought a pair for High Noise monitoring. Read more

Published 18 months ago by J. Andrews

5.0 out of 5 stars True Reference IEMs!
I've enjoyed the er-4s by etymotic for 4 years now and yes, they are In Ear Monitors. They are True Reference In your head phones. Read more

Published 18 months ago by Geddy Lee

5.0 out of 5 stars Absolutely Great headphone
Absolutely clear Sound.
"Flat" curve in dB.
It's means the balance of sound(Not enhance the Bass). Read more

Published 20 months ago by Yung Wei Huang

› See all 25 customer reviews...

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