The ATH-CK9’s were purchased by me and I’m not in any way affiliated with Audio-Technica.
Built and accessories:
The ATH-CKR9 is a dual dynamic IEM featuring two 13mm drivers. The drivers are mounted to face each other and are wired out of phase, Audio-Technica calls this “dual phase push-pull driver system”.
Housing is made of aluminum and overall build quality feels very good. The design looks as if it was made for detachable cables but unfortunately that’s not the case. The housings are fairly large but the design with a pretty shallow fit still makes them very comfortable to wear. I’ve got small ear canals but these stay well in my ears and I also use them in bed while going to sleep without any problem.
The cable doesn’t look or feel like anything special but in use I find it to be excellent with very little tangling, low on microphonics, soft and flexible. The plug is L-shaped and feels very solid.
The accessories are not much to write home about featuring four different silicon tips and a carrying/storage pouch. I’d have liked to see a lot more tip options included at this price point. None of the included tips worked well for me since I prefer this with wide bore tips, more about this in the sound description later.
The CKR9’s are very easy to drive and works great out of every source I’ve tried them with. Isolation is average with silicon trips but I’ve used them with Comply tips on a couple of flights and that works very well.
The specs:
Type
| Dynamic
|
Driver Diameter
| 13 mm x2
|
Frequency Response
| 5-35,000 Hz
|
Maximum Input Power
| 200 mW
|
Sensitivity
| 109 dB/mW
|
Impedance
| 12 ohms
|
Weight
| 12 g
|
Cable
| 1.2 m, Y-type
|
Connector
| 3.5 mm gold-plated stereo mini plug, L-shaped
|
Accessories Included
| silicone eartips (XS/S/M/L) and protective carrying case
|
Sound:
I’ve used these as my main IEM’s over the last months and they’ve played for well over 200 hours. I’ve used them at home, while travelling and when going to sleep.
I’ve used them with my Sony Xperia Z3 Compact phone, FiiO X3/Bluebird 6.0 combo and the Geek Out 720/Cayin C5 combo.
Demo list:
Mark Knopfler – Sailing to Philadelphia
Røyksopp (Feat.Susanne Sundfør) – Save Me
Ane Brun – These Days
Michael Jackson – Dirty Diana
Alice in Chains – Them Bones
The Peter Malick Group – Immigrant
Eva Cassidy – Songbird
Thomas Dybdahl – A Lovestory
Norah Jones – Don’t Know Why
Celldweller – Unshakeable
Jack Johnson – Better Together
Seinabo Sey – Younger (Kygo remix)
Dire Straits- So Far Away
Passenger – Let Her Go
Morrissey – Earth Is the Loneliest Planet
I really like these most with wide bore tips and my favorites are the JVC Spiral dot, the red/grey wide bore tips from Lunashop and the very strange stock ear tips from the LG Quadbeats. Using wide bore tips makes soundstage slightly wider and treble more pronounced to my ears.
The overall sound signature is well balanced, lively and very entertaining
.
The lows have great depth, texture and speed. The bass reproduction on the ATH-CKR9’s is by far the best I’ve heard in an IEM. The bass is very well controlled with no bleed into the lower midrange. These are by no means bass light IEM’s but the bass is focused in the lower bass regions and digs really deep with great impact and an amazing layering. I’d say that you need to be at least a semi bass-head to feel that they lack bass.
The midrange is slightly forward with more focus on the higher mids than the lower. This in combination with not even a hint of boomy mid bass but great clarity, details and voice reproduction makes a very enjoyble midrange in total.
The treble feels detailed and has a very good extension without any sibilance. I really enjoy these with female voices and they’re very non-fatiguing.
Soundstage width is good and soundstage depth is excellent. Clarity is also good while micro details and separation are amazing.
So all together we’ve got great sub bass impact and speed, zero bass bloom into the lower mids, a slight forwardness in the higher mids and a very good treble extension without any sibilance. All this combined makes a very natural presentation that really hit the sweet spot for my preferences.
Comparison:
CKR9 vs CKR10:
Compared to the CKR9 the CKR10 has a warmer, thicker sound with more intimate presentation. The CKR10's has a lift in the lower midrange (while the CKR9’s has a lift in the higher midrange) that makes mid-bass more prominent but also makes male voices sounding more realistic. The CKR9 is brighter compared to the CKR10’s (but they’re NOT a bright IEM ) which also gives them greater clarity. They both share the non-fatiguing treble and excellent bass layering.
The design on the CKR 9 and 10’s is identical so I find them equally comfortable. They’re also equally easy to drive.
CKR9 vs DUNU Titan 1:
Compared to the CKR9 the Titan 1 has an overall brighter presentation that gives a feeling of more air and better clarity but also makes them a bit more fatiguing in the treble reproduction. Bass impact is very good on both but the CKR9 reach lower and has better layering in the bass. The Titan 1 also loses out in soundstage depth and micro details.
The Titan 1 is one of the most comfortable IEM that I own so I’d rate them slightly above than the CKR9 in ergonomics. The Titan is also a bit harder to drive.
CKR9 vs Havi B3 Pro1:
The B3’s still remains one of my favorite IEM’s to this day. Compared to the CKR9’s they’ve got a larger soundstage width and an overall more neutral presentation. The B3’s are also more relaxed while the CKR9‘s are more forward in its presentation. The voice reproduction on the B3’s are the best I’ve heard in a IEM so far but the CKR9’s really pushes them and the difference in realism between the two is minimal. The CKR9’s has an overall fuller sound and significantly more bass impact and as a result of this better layering in the sub bass. The higher mids on the CKR9’s is also a bit brighter and treble has better extension than on the B3’s.
The B3’s are over ear design and although I usually like that the best I’d say that ergonomics on these two are pretty similar. The B3’s are significantly harder to drive compared to the CKR9’s.
Summary:
I’d guess that by now there shouldn’t come as any surprise that I really, really like the ATH-CKR9’s. I’d even go as far as saying that it’s the best sounding IEM I’ve ever heard for my preferences. If I should describe the CKR9 in as few words as possible it’d be non-fatiguing and natural sounding.
If there’s something I’d like to change on these it wouldn’t really be anything regarding sound but the variety of included tips should be much better at this price point and I really would have liked the cable to be detachable.