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Westone 4R (W4R) Professional Earphones In-Ear Quad Driver Headphones with Removable Cable

Westone Series 4-Way Balanced Armature Driver In-Ear Monitors/Earbuds w/ Removable Cable (79270)


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Westone True-Fit Technology

Westone True-Fit Technology

Fifty years experience with in-ear applications has produced a compact and light universal earpiece with premium sound and fitment. The True-Fit sound port guarantees maximum comfort and unparalleled sound reproduction. Westone takes pride in assuring that your audio experience is not only good, but one of the greatest.

Balanced Armature

Balanced Armature

Operating on different terms than traditional drivers, balanced armature drivers are significantly more compact and efficient. This allows for a lustrous comfort and a precise end result. Westone implements sophisticated 2-way and 3-way multi-BA driver configurations to further improve sound detail and expand to a full and rich frequency response.

EPIC Removable Cable

EPIC Removable Cable

Get all of the same perks as the EPIC cable with the addition of a low profile connector system with a removable, user-replaceable cable. The EPIC removable cable provides the perfect combination of convenience and portability. This cable gives you the guarantee of a truly portable cabling solution.

Acoustic Symmetry

Acoustic Symmetry

Having Acoustic Symmetry means that both the left and right earpieces are matched to a precise +/- 2dB tolerance. This results in unparalleled balance and a perfect reproduction of sound staging.

Product Features:

  • In-Ear Dynamic Quad Westone Series Monitor
  • Micro-Driver Balanced Armature Technology
  • Quad Driver technology for precise and accurate lows, mids, and highs with passive 3-way crossover
  • Removable cable for increased portability
  • Supple braided design ensures comfort and resists tangles
  • Designed with a snug fit for active people
  • Over-the-ear cable design offers superior in-ear comfort and isolation from mechanical cable noise
  • Includes different size tips for added comfort
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

Product Specifications:

  • Frequency Response: 10-18,000 Hz
  • Sensitivity: 118 dB SPL @ 1mW
  • Nominal Impedance: 31 Ohms (@ 1 kHz)
  • Driver Type: Balanced Armature
  • Driver Features: Three-Way (3-Way) Crossover (Passive)
  • Number of Drivers: 4 (Per Earbud)
    • Driver 1: Highs (Treble)
    • Driver 2: Mids (Mid-range)
    • Driver 3: Lows (Bass)
    • Driver 4: Additional Lows (Bass)
  • Item Weight: 12.7 grams (0.445 ounces/0.0278 pounds)
  • Cable: EPIC Removable Cable
  • Cable Connection: Detachable/Removable Cable
  • Cable Length: 50" (4.16 Ft/128 cm

Product History:

Westone Westone 4R thumbnail
(newest, current model)
Westone Westone 4 (79297) thumbnail
(previous model, replaced by Westone 4R (W4R) Professional Earphones In-Ear Quad Driver Headphones with Removable Cable)

Headphone Design

Headphone Type

Headphone type refers to the construction of the headphones.

Around the Ear means that the headphones wrap around the ear to provide a secure fit. This is most often seen in active and sports headphones.

Around the Neck means that the headphones wrap around the neck. This is also seen in active and sports headphones.

Earbuds means that the right and left sides of the headphones are separated and will fit securely into the ear. These are small, compact, and user friendly.

Over the Head headphones mean that the right and left speakers are connected with a support that goes over the head and rests on top. This is the typical headphone type.

Earpiece Design

This is the design of the earpieces on the headphones. Some headphones go inside the ear, while others rest on the outside of the ear. This helps you know exactly what type of headphones you will be receiving.

In-Ear: The ear buds go into the ear. Most often, the right and left ear buds are two separate pieces.

Enclosed-Ear: Usually are found on the larger headphones. They rest on top of the ear and have padding for comfort, as well as enclosing the ear to the speaker. This type of headphone helps to filter out surrounding noise.

On-Ear: This type of headphone involves the speaker sitting gently on the ear without going in the ear or sealing it off.

Specifically For
Some headphones can use an IR Transmitter in your vehicle, while some can be plugged into your media device and be used on the go or at home.

This is the lifestyle that the headphones are designed for. Each style has unique features that make it perfect for particular people.

Designed for those that are active. These headphones are made to stay in the ear during workouts. Whether you frequent the gym a lot or go running outside in the fresh air, these active style headphones will be your best friend.

For those that need the best in music quality. These audiophile headphones are engineered to produce high fidelity and accurate audio replication.

Disc Jockeys (DJs) require a special type of headphone that can meet their professional needs. These headphones are durable, loud, and will often allow for one ear listening.

Fashion Enthusiast:
For those that want to make a fashion statement with their headphones. Not only are these headphones designed with great sound quality in mind, but also great looks!

This lifestyle speaks for itself! If you love video games and want a pair of headphones that will deliver explosive sound and allow you to communicate with others, this is where you need to shop!

Music Lover:
These headphones are made to sound great. They are designed to produce rich, brilliant sounds that will play your music in a manner that the artists would appreciate. These headphones are for those that love music.

Musical Production / Recording Artists:
You're a music creator. Whether you're producing and mixing it down or in the studio recording yourself, you need a pair of headphones that will reproduce the music perfectly without any coloration. Look here for reference quality studio monitoring headphones.

Headphones need to be affordable and durable to keep up with the student lifestyle. A variety of styles can be considered a pair of student headphones.

Those that often find themselves on planes or on the road a lot. These headphones are compact, lightweight, and have a portable design. Some of the headphones in this lifestyle will feature noise cancellation technology that will help shut out outside noise.

Fashion Enthusiast
Music Lover
Acoustic Principle
The basic design of the headphones. There are 3 different types: Open: Have ports that allow air through the back of the diaphragms, enabling the headphones to sound like the music is coming from an outside source. Closed: Completely sealed and have no air passing through the diaphragms. Sounds like you are in a closed off room. Semi-open: Have slots or ports in the back of the cup and are partially open. This allows for a mixed sound between an open and closed headphone.

General Features

Noise Reduction technology removes unwanted noise from a signal. Background or ambient noise can be removed to produce clearer speech and enhanced hearing. Typically these Active Noise Canceling (ANC) headphones are powered and use batteries to activate the noise canceling technology. Also referred to as Noise Reduction or Noise Cancellation.
Headphone Connection
This is how the headphones connect to the audio source.

Corded means that the headphones use a cord to transfer the audio signal.

Wireless means that the audio signal is transmitted wirelessly to the headphones.

1/4" Stereo Jack Adapter
Some headphones will come with a 1/4" stereo jack adapter to connect the usual 3.5mm jack to a 1/4" stereo plug.

1/4" Stereo jack is a larger audio jack that select electronics have.

Volume Adjustment
Volume Adjustment means that the headphone (independent of the source) can adjust the playback volume. Many headphones and ear buds have in-line volume control, which allows adjusting the audible volume from a switch on the headphones cord. Other headphones have a volume knob on the headphone can.
Built-In Microphone
This means that the headphones or earbuds have a built-in microphone. This can be a microphone on the cord, built into the headphone, or even a boom microphone. These mics can be used for music devices like iPods, for Smartphones to make and receive calls, or for gaming purposes.
Frequency Response
The range of frequencies the speaker will reproduce (lowest frequency to the highest). Bigger is better, meaning the wider the range, the better. The optimal range is 20 - 20,000 Hz (which is the range of human hearing).
10 - 18000 Hz
An efficiency or sensitivity rating tells you how effectively a speaker converts power into sound. The higher the number, the more efficient the speaker and the louder it will play with the same input power. An efficient speaker helps you maximize your available power. Most sensitivity ratings measure the speaker's output with 1 watt of input, 1 meter from the speaker. Some speakers' sensitivity is measured with 2.83 volts of input, instead of 1 watt.
Efficiency (1w/1m) is not an accurate indicator of a subwoofer's output capability and should not be used as a comparison to other speakers or subwoofers to determine which one is "louder".
118 dB
Driver Size
This refers to the diameter of the driver (speaker) on each side of the headphone.
Driver Type
The physical design of the driver in the headphones.
The opposition to electric current, a higher impedance means a higher electrical resistance. This is measured in ohms.
31 ohms
Primary Color
This is the main color of the item.
Secondary Color
A color that compliments the main color of the product.

Specials with this Item

Promotions we have offer More Ways to Shop for items that are on clearance, last chance, special offer and sales, Made in America, and more!

Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
4 Star
3 Star
2 Star
1 Star

Average Attribution Rating



Awesome sound

November 13, 2013

This is a great earphone for classical and live music. I also find it enjoyable with pop music due to the relatively stronger bass. The bass is tight and does not muddle the sound. The sound stage is good, feels a bit like listening to hi-fi in a room. The weakness part of the sound is the mid-range, the vocal feels a bit too laid back - not as engaging.

Build quality wise this is top notch. The wire is braid which helps reduce noise from wire movements. This comes with many different tip size and a choice of silicon or foam. The silicon tips fit very nicely. I don't use the foam tip as it seems to emphasize the bass and suppress the mid-range.

The earphone also comes with a hard case. Good for protecting the earphone but not so good for carrying it around in the pocket as it is rather bulky.

Giving four stars because it is expensive for marginal sound improvement. This is not a wow-factor earphone. This is an earphone that improves on the details.

4 of 6 found this helpful

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Orange County, CA

True Masterpiece!

April 25, 2013

Westone..... where to start.

As pioneers in this particular category, I certainly had only the highest expectations. I want to say in advance that I was NOT let down....

The 4 way driver was something I didnt quite understand at first. I own the UM3 Headphones, and have loved them from the day I bought them (3 Years ago) until the day they were passed on to my younger brother. I was expecting to hear a much deeper presence in the bass response, but that was not the case. Instead, I hear more bass, but not the kind everyone expects. The level of detail on low frequency is impeccable. The detail reminds me the type of detail you get in mids and the highs with your typical balanced armature driver. So define, nothing is missed. The thing that has impressed me the very most about these monitors has been their ability to show true definition and variance in the low frequency. I constantly am hearing things that I never heard before. Even on my UM3's.

The detachable cable is great. I was worried that I might lose the cable, but I saw that the replacement cables, and different colors and lengths are available. That might actually come in handy. They come with more eartips than I think I could go through in a year, as well as the carrying case (vault) which is about the most sturdy way to carry headphones as I could ever imagine.

I love the way these monitors slip in my ear and practically disappear. They may as well be invisible, or just part of my ear. I have used them on the go, running (in the short time my lungs could last), walking, at work, and in just about every daily activity my exciting life offers. They dont budge. The Removable Cable has a coating of a clear plastic like material that acts as almost a memory type wire. So I bent them and wrapped them around my ear, and have never looked back. Everytime I pull them out, they are already in the perfect position to hold snug to my ear.

Overall I have been thoroughly impressed. They are expensive, I will certainly say that, but you cannot expect to get this level of sound quality (and personal satisfaction) out of your average so called "High End" headphones. If these are within your budget I would certainly buy them. You wont be sorry. If they are slightly over your budget.... well they arent for everyone. But you can always try and work a deal :)

9.8 out of 10 (only thing docking it is price)

2 of 4 found this helpful

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hi fi unit.great fit

January 18, 2014

Takes time to learn how to fit them in your ears.after that the phones feel.very comfortable.balanced non fatiguing sound.I think the product is bit overpriced.

3 of 7 found this helpful

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hi fi unit.great fit

January 18, 2014

Takes time to learn how to fit them in your ears.after that the phones feel.very comfortable.balanced non fatiguing sound

3 of 7 found this helpful

Was this review helpful to you?

Accessory Tools and Products

Accessories added

Limitless Creations Earbuds Case

Universal Thermoformed EVA Ballistic Nylon Shell Case for Earphones w/ Soft Inner Lining

Your Price $4.99

StreetWires ZN5XF35

ZeroNoise 5 Series 3.5mm (1/8") mini-jack extension cable with oxygen-free copper wire

Your Price $16.95

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Product Summary


Model Number

Westone 4R





Internal SKU


Internal Product ID


Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: Westone 4R (W4R) Professional Earphones In-Ear Quad Driver Headphones with Removable Cable