Home » Reviews » DUNU DUW02 and Chord Review : Cant go wrong with these

DUNU DUW02 and Chord Review : Cant go wrong with these

We all are aware of DUNU the makers of the legendary DN-2001 and DK-3001. They are making a lot of waves with their latest flagship LUNA, their beryllium driver IEM which is priced at over $1500. What they don’t promote a lot is their array of aftermarket cables. Even before their resurgence last year (with a lot of IEMs) they were selling handful of aftermarket cables. They refreshed their lineup last year and came up with lucrative names for their cables like “Noble” “Hulk” “Chord” and “Lyre”.

Here we will be discussing about the DUW-02 and Chord cables. DUW-02 is priced at $80 and the Chord is priced at $209. What is really interesting is that only the DUW-02 comes with both the MMCX and 2-pin options. The Chord only has MMCX. They do not have any color options, the DUW-02 has grey and Chord has dark brown color options.

In the market where brands are aggressively promoting their cables these DUNU cables have a lot of competition. I don’t have a lot of cables but what I have with me are a few good cables.

Here are few links from where you can get the DUW-02:-  (here you can choose the 2pin version)

Get the Chord from these places:-


Some brands like to add fancy things in the box but DUNU doesn’t pack their cables with a lot of stuff. Both the cables ship with exactly same set of accessories and box. In the box the only useful thing is the cable tie. A silica packet, a manual on how to change the quick switch plugs and a small certificate card concludes the list of things in the box.

While buying the Chord, you can choose the plug of your preference without paying extra. You can opt for 3.5mm single ended, 2.5mm balanced and 4.4mm pentaconn.


Both the cables have high purity silver plated OCC copper litz wires. Each wire in the 02 has another interference killing wire to deliver clean and high fidelity sound. The 02 uses Taiwan’s Neotech cables which has high purity single crystal copper with silver plating on it. It improves transmission efficiency and lowers loss.

The Chord has more tech and silver in it. It utilizes a complex multi-strand core design, with high-purity Furukawa Electric OCC copper and DHC pure silver wires interwoven between one another. To minimize interference, it is hand-braided with a round Litz configuration.

Both the cables have high quality material used for the outer layer. They have soft and skin friendly material which helps in reducing microphonics. The 02 is very supple and is very easy to wind. Chord on the other hand is slightly on the stiffer side and is slightly bouncy, mostly because of the hand braiding and better Litz tech. Both the cables have good protective layers.

These cables have catch-hold MMCX connectors. It creates some kind of vacuum which helps in better lock and improved connectivity. The biggest positive of these cables is the Quick Switch modular plugs. It changes the termination of the cable while saving a lot of money as you don’t have to spend on a whole cable. All you have to do is to buy the quick switch plug of your choice for just $20 and swap it with the stock one. The switch plugs options are 2.5mm balanced, 3.5mm balanced and 4.4 pentaconn (the 3.5mm comes as default). Changing the termination is very easy. Refer to this image:-

What DUNU has done here is that they have kept the cables simple. They don’t shine like some fancy cables. They looks more sober and matures.



These cables are crazy good when it comes to Stage expansion. I have encountered more expensive cables but even they are not as good as these cables. The DUW-02 with its copper dominated mix brings out a bit more bass and the Chord with its more silver dominated mix has a bit more extension at both the ends along with better transparency.

P.S. Stock cable means the cable that ships with an earphone.*


With some presence of silver in its core it doesn’t go all out with the bass , it shows better control and doesn’t let the lower end get wooly or loose. The notes are a bit tighter and more focused. The Sub-bass has very good extension and clarity. It has slightly better details and accuracy compared to the cables that ship with the IEMs and cheap after market copper cable. The mid bass is slightly less voluminous, the notes are tighter and a hair faster, the slam and air is not compromised. The upper bass is untouched. Mid range gains better clarity with slightly more attack and bite. The transparency is much better than even some decent out of the box and after market cables. The vocals are very delicate and accurate, the tonality and texture are a hair better. Small changes in the notes body are more evident and so are micro details. The upper mids are slightly more energetic and can be a bit aggressive in comparison.  The Treble region has a hair better extension and a bit mote sparkle and energy. All the instruments feel more alive and agile.

The biggest change is with the stage size and imaging. The stage feels at least 20-25% bigger than stock cables. I love this expansion and thanks to more accurate and a bit sharper notes there is more air between instruments. The bass is placed inside the head as usual but the instruments have more out of the head presence. The cues are placed further and the sonicality is far more improved.

When paired with the DUW02 earphones gain around 15-20% bigger stage size and better resolution with more clarity. The only down side is that pairing it with an already aggressive sounding earphone can make things a bit more aggressive. Pair it with a bit slow and lush sounding IEM like Aedle ODS-1 and it will gain more transparency and better clarity.


The chord with more silver in its core is like a DUW-02 on steroids. It shows a bit more SPC like characteristics with more control over bass notes and better extension at both ends. The lower end loses a bit more bass body in exchange for faster decay speed and more accuracy. The slam and air is there but now it is faster. Texture and details across the spectrum are better. The mid range is more forward with a bit more energy and attack giving notes better definition and accuracy. Vocals have very good balance of sharpness, accuracy and plenty of texture. The upper mid is a bit more energetic and with an IEM with a peak in this area things can be a bit undesirable. The treble feels even more cleaner with fantastic layering and separation. The energy is maintained even when it goes higher in the spectrum. The energy is even more present with higher frequencies.

The Steroid feels more real when it comes to stage size, it just gets in the line with decent balanced cables. Compared to the Stock* cables the Chord has around 40% bigger stage. It has even better presence out of the head and the cue placement is even more distant. The sonicality improves and turns an average IEM like Whizzer A15 into a more technical and much more mature sounding earphone.

It adds more energy, better accuracy, clarity, transparency and even bigger stage than the DUW02.



Suman Sourav Meher

Suman Sourav Meher

My humble audiophile journey started in 2010, when I was in college, where I fell in love with the elements, nuances, and variations of this mesmerizing world. The ability of tiny earphones to recreate amazing sounds made my bad days tolerable and good days better! Now I am a full-time audiophile with a preference for musical tracks, especially vocals and engaging ones. I must admit I am addicted, but not to drugs or alcohol, but to earphones. Come join me as I share my experiences, bad or good, and let’s have some fun!


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