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Sony XBA-2 (XBA2) Dual Balanced Armature Driver Earbuds In-Ear Headphones

Balanced Armature Drivers for Accurate Bass and Treble with Superior Noise Isolation


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Dual Balanced Armature

The Sony XBA-2 feature a complete range of technological and design advancements that promise to deliver among the most definitively moving musical experiences. Foremost, the construction of the XBA-2 features a unique combination of magnesium inner housing and ABS outer housing, both which limit vibration distortion for a sound reproduction that is as close to the original signal as possible. The XBA-2 performs particularly well in the mid and high frequency ranges, the treble frequencies are rendered with clear precision. Aside from the chamber construction, these in-ear headphones feature eartips composed of urethane foam inner earbuds with high-density silicone outer tips that isolate noise while preventing sound leakage for a secure and focused sound.

The remodeled chamber and ear pieces would be incomplete without an equally innovative driver. To complete the design of the XBA-2, Sony has developed an exclusive balanced armature driver system that delivers the cleanest reproduction. From bass to treble, the tones are perfectly balanced and separately channeled. Each XBA-2 features a dedicated full range and woofer component that allows both low and high frequencies to be delivered with equal fidelity without muddying the tone. Ultimately, Sony's unique frequency filtration system allows for rich and distinctly nuanced sound.

Product Features:

  • Dual Balanced Armature In-Ear Monitors
  • Double layered housing
  • Magnesium inter housing keeps driver securely in place and prevents vibration and keeps armatures unified
  • Outer housing constructed of specially designed ABS plastic further inhibits vibration and minimizes distortion
  • Noise isolating earbuds
  • Earbuds are constructed of pressure-relieving urethane foam
  • Varying density silicone ear buds function to isolate noise, produce a secure fit, and prevent sound leakage
  • Dual Balanced Armature Drivers
  • Frequency filter diverts low frequencies to woofer while high frequencies are diverted to the Full-Range armature driver
  • Dedicated armatures for low and high frequencies allow for immaculate reproduction of each range without muddying complementary tones
  • Layers bass and treble frequencies for a fully complex and nuanced reproduction
  • Also available with iPod/iPhone control and microphone

Technical Specifications:

  • Power Handling Capacity: 100mW
  • Impedance: 12 Ohms
  • Sensitivity: 108dB
  • Frequency Response: 4-25,000 Hz
  • Cord Length: 1.2m (3'-11,1/4")
  • Plug: Gold-plated 90° stereo mini plug
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

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.

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).
4 - 25000 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".
108 dB
Driver Type
The physical design of the driver in the headphones.
Balanced Armature
The opposition to electric current, a higher impedance means a higher electrical resistance. This is measured in ohms.
12 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

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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



Always owned the best, these may be my next.

September 19, 2013

I own the XBA 1's now for about a year. They have a neck chain style cord. I am sure that you shouldn't ever buy ear phones that don't have this feature. It wasn't listed on the box of the XBA1's but they do have them. Sony is the only one that I know of that makes the neck chain style cord. They stay out of your way and greatly decrease cord noise that comes from the cord touching anything plus the ear seals of these models also seal out such noise better than older models. I know what's the best product because I've worn the best at work since the 80's. it sounds like the XBA-2's dual balanced armature is trying to match the bass of the size 13 speakers while delivering the best sound quality of the XBA-1's. I would sure like to try them.

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October 18, 2013

Very good condition.

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I've always onwed the best, These may be my next.

October 2, 2013

I've used Sony in ear phones at work every day for decades because in my opinion there the best. Most of them have a must have feature that is hard to notice in the fine print, on the box of the XBA-1 in the middle of the specs you'll see the words Cord - neck chain. This is a must have feature! Take it from my experience.

The right speaker goes around the back of your neck so they stay out of your way, no matter what and seem much less noticeable. The neck chain cord also greatly reduces cord noise when the cord touches anything, because it doesn't touch as much as other cord types.

The ear pieces have 3 different size & two types. One is the regular & the other is listed as, Earbuds are constructed of pressure-relieving urethane foam. I think after owning them for so long the pressure-relieving urethane foam also reduces cord and background noise.

I've been very happy with the XBA-1's and their balanced armatures, but extra bass boost from a second set is always a nice option with the XBA-2's. I see there is now an XBA-3 which I may also consider.

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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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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: Sony XBA-2 (XBA2) Dual Balanced Armature Driver Earbuds In-Ear Headphones