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Audio Technica ATH-CKX9 SonicFuel - Silver

Active Sports Style Earbuds with 360 Degree Rotating Eartip and Noise-Isolating Comply Foam Eartips

List price $94.95

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Audio Technica SonicFuel ATH-CKX9, The Fuel to Your Inner Fire!

Uniquely Designed 360° Rotating Eartips automatically adjust to the angle of users inner ear canal, offering a personalized fit, for the best possible sound results. A.T.'s C-Tip was Modeled after the inner ear, comfortably securing these incredible earbuds in place without irritation. The Sonic Fuel CKX9 features AT's Enhanced 8 mm Driver System, delivering breathtaking clarity while proving robust, and detailed in critical moments of play. The SonicFuel ATH-CKX9 Series is Available with Standard Table-Free Cable, and ATH-CKX9iS with In-Line Microphone & Remote Control for Compatible Smartphones.

What's In The Box?
  1. Audio Technica SonicFuel CKX9 Earphones (Silver)
  2. Active Sports Fit C-Tips (2x S/M/L)
  3. Replacement Silicone Ear Bud Ear Tips (2x XS/S/M/L)
  4. Comply Foam Eartips
  5. Protective Carrying Case
  6. Owners Manual & Users Guide
  7. 2-Year Warranty Information

General Features:

  • 360° Rotating Eartip SonicFuel Series Stereo Earbuds
    • Uniquely Designed Rotating Eartip Offers the most Comfortable Fit with Precise Sound Delivery
  • Active Sports C-Tip Fit
    • Modeled After actual human ears, the C-Tip securely and comfortably holds these earphones in place without irritation, ideal for rigorous training and demands
  • Powerful, Detailed, and Inspiring Sound Reproduction
    • Enhanced 13.5 mm Driver System delivers accurate, sensational sound with thundering bass levels rated as low as 5 Hz
  • Noise Isolating Eartip Design
    • With properly sized silicone ear tips, users will experience exception sound isolation eliminating unwanted noise
  • Comply Foam Eartips
    • Manufacturing some of the most comfortable ear tips available on the market, Comply Foam offers the most comfortable tip for best listening experience
  • Luxurious Hard Shell Case
    • Protect your precious investment, and ensure you never lose the impressive C-Tips, and Eartips, and guarantee safe storage
  • Manufacturer Part Number: SonicFuel ATH-CKX9SV (Sonic Fuel ATH-CKX9 SV)
  • Main Color: Silver
  • Secondary Color Accent(s): Blue (Cable), White (Eartips), Black
  • Also Found As: Audio Technica ATHCKX9 Silver, ATH-CKX9 Silver, ATHCKX9 SV, ATH-CKX9SI, ATH-CKX9SL, ATH-CKX9SVR, ATH-CKX9SIL
  • Audio Technica ATH-CKX9 SonicFuel Earbuds Also Available In:
  • Audio Technica CKX9 SonicFuel Earbuds Also Available with In-Line Remote / Mic Cable In:
  • Authorized Internet Dealer
  • 2 Year Manufacturer's Warranty

Product Specifications:

  • Headphone Fit: In/Inner Ear
  • Speaker Type: Dynamic Driver
  • Speaker Size: 13.5 mm
  • Speaker Impedance: 32 Ohms
  • Sensitivity: 104 dB
  • Frequency Response: 5 Hz - 25,000 Hz
  • Maximum Input Power: 20 mW
  • Cable: 3.94 Feet (Y-Type)
  • Connection: 3.5mm Stereo Mini, Gold Plated
  • Approximate Weight: 10 Grams (0.35 Ounces)
    • Audio Technica Authorized Reseller

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).
5 - 25,000 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".
104 dB
Driver Size
This refers to the diameter of the driver (speaker) on each side of the headphone.
13.5 mm
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.
32 ohms
Primary Color
This is the main color of the item.
Secondary Color
A color that compliments the main color of the product.

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Warranty and Return Policy

Parts Warranty Duration
2 years
Labor Warranty Duration
2 years
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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: Audio Technica ATH-CKX9 SonicFuel - Silver