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  • Audio-Technica ATH-CKX9IS Sonic Fuel In Ear Headphones  -  Silver
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Audio-Technica ATH-CKX9IS Sonic Fuel In Ear Headphones - Silver

Price: £66.99 & FREE Delivery in the UK. Details
Only 7 left in stock (more on the way).
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5 new from £66.99 3 used from £59.68
  • In-line control with mic for answering/ending calls, controlling music and video playback.
  • Large 13.5mm performance enhanced drivers offer a premium listening experience
  • C-tip design fits the shape of your ear for reliable, stay in place comfort
  • Hard case keeps headphones protected and easy to find every time
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Product Information

Colour Name: Silver
Technical Details
Item Weight100 g
Product Dimensions20.3 x 5.1 x 10.2 cm
Item model numberATHCKX9IS SV
Speaker Amplification TypeStereo
Additional Information
Best Sellers Rank
Shipping Weight100 g
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Date First Available1 Oct. 2013

Product Description

Colour Name: Silver

Product Description

Music is your energy for life - the fuel for your heart and soul. SonicFuel headphones are specifically designed for active, daily use, to power you forward by delivering extraordinary comfort, style and an immersive listening experience that never sounds artificial, processed or filtered. Just pure sonic goodness for the high-octane tempo of your life. The ATH-CKX9iS SonicFuel in-ear headphones feature stay-in-place fit, providing unique comfort in addition to optimal sound. The C-tip configuration nestles within the ear where it locks in place for extra stability. Customize your comfort with a multitude of C-tip & silicone eartip sizes or use the included Comply foam eartips for true sonic immersion Large 13.5 mm performance-enhanced drivers fuel your day with a premium listening experience, deeper bass response and sparkling high frequencies. In-line volume and microphone controls (on compatible smartphones*) allow you to control music & phone calls without missing a beat. A newly designed flat cable eliminates annoying tangles and lasts longer. The included hard carrying case keeps your headphones protected and organized, so they are easy to find and unravel every time.

Box Contains

Includes luxury zippered hard carrying case
comply foam tips
silicone eartips & C-tips

Customer Questions & Answers

Customer Reviews

4.2 out of 5 stars

Most Helpful Customer Reviews

9 of 9 people found the following review helpful By The usual suspect TOP 1000 REVIEWERVINE VOICE on 2 Jan. 2014
Colour Name: Black Vine Customer Review of Free Product ( What's this? )
I'm not an audiophile but I do like to improve my audio quality to the best I can within a budget. I consider headphones important but at the same time am wary of how easily they are broken therefore, I don't like to spend excessive amounts of cash on them. Spending over £100 is what I consider high risk.

I saw these A-T Sonic Fuel on the Vine so I thought I would see how these compare to my Sony MD-EX510's. Same price now (although the Sony is obsolete) but the Sony was originally higher.

In my testing I used the Cowon D20 32GB MP3 Player - Black - dogs dinner interface but outstanding audio. To be fair on the AT's I plugged them into my PC and played music into them all weekend to burn the in a little.

Physically, the AT is quite sizeable thanks the extra bulk of the in-ear 'c' fitting and driver covering. This adds to the weight so when comparing the two, the Sony ear piece comes in at 3g whilst the AT is 7g. Yes, the two are different design in the grip department but the Sony is much more comfortable to wear. The much lighter design means you are much more likely to not know that you are wearing them.
The major plus point for the AT on the physical design is that once they are in, they need to be extracted - they won't be falling out anytime soon! When in the gym, the AT is by far the better option.

Sound quality is tough to review because it's down to personal preference. If they were both brand new out of the box, the AT will impress instantly - the Sony's were shockers! But now, in my opinion, the Sony is the better sounding. I am not saying the AT sounds bad though - just a personal thing.
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4 of 4 people found the following review helpful By Saad Ahmad Mughal on 23 Oct. 2014
Colour Name: Black Verified Purchase
Firstly let me start with my background, I am an amateur music artist and enthusiast. I've had the Audio Technica M50 for years and I still think they're one of the best headphones you can buy and definitely the best for the price so I was coming into this with high expectations. I mainly use my M50s for any serious work but I've been wanting a good pair of earphones for a while now, so I decided to check these out.

Build Quality & Design
The CKX9iS (that's a mouthful) have a unique, slightly unusual style to them that I rather like, they look sleek and professional, especially the black version but they are not flashy or stand out that much. The build quality is great overall, the earpieces are made mostly of metal and look sturdy. The cable is flat and thick and feels much stronger than regular round cables I can see it lasting much longer and the L-shaped plug works great to ensure you're not bending the cable at the tip (which is how most cables tend to wear out from). A few weird things about the design is firstly the mic & remote placement, The mic & remote is placed at the junction for the y-shaped cables whereas normally it's much higher up along one of the ear cables, this might take a little getting used to but I did not see it effecting call quality on anything like that, I guess even from that far the mic is still pretty good at picking up sound and you can always lift it up and bring it closer if you really need to. There also a nice little compact hard carrying case which looks sleek and professional.

Function & Comfort
The earphones employ a c-tip design which has two main effects, firstly it locks your earphones in place as intended and they are VERY unlikely to fall out no matter what hardcore exercise you might be doing.
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2 of 2 people found the following review helpful By Ash VINE VOICE on 5 Dec. 2013
Colour Name: Black Vine Customer Review of Free Product ( What's this? )
Having used a number of earphones with varied, but generally disappointing performance in the last couple of years I wasn't expecting too much from these.

They are the first in-ear c-tip design I've tried, having previously opted for the mote traditional earphones or those that latch over the ear. I was pleasantly surprised by their comfort. The c-tip comes in three different sizes much as the ear-buds do, and the soft rubbery plastic nestles comfortably in the ear holding the earphone in place without ever feeling awkward or irritating. On occasion it took me a few attempts to get it sitting properly and comfortably, but no more so than any other earphones I've used.

I always prefer a flat wire as it makes untangling the earphones so much easier, and these are no exception. I'm less keen on the black and grey design and would've preferred a full black colouring but that is purely down to personal preferrence. The in-line mic is made of a glossy plastic, but in contrast to a number of others i've tried, it doesn't feel cheap. The answer/play/pause button has a nice click without requiring too much effort, and I like the volume slider, although it would be nice if this could be locked in place as I did find it tended to get nudged by clothing.

In terms of sound quality, these are some of the best earphones I've used. They offer a very good balance across a range of different genres and do not resort to the excessive bass that has become so commonplace across a number of other leading brands.

All-in-all, these are some of the best earphones I have every used. Even at the elevated price point, the performance improvement on other earphones from other major brands, I can't recommend them highly enough.
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Most Recent Customer Reviews