Blue Dragon Cable V3 for Sennheiser Headphones

In stock

This is the Blue Dragon headphone replacement cable for the Sennheiser HD 598, HD 558, and HD 518 headphones ONLY.

The Blue Dragon is a neutral, very natural sounding headphone cable which is great for vocal performances. It is also a good fit if you do not want to add coloration but want to improve clarity and dynamics in your headphones. In addition, if you do not want to tip the headphone forward or back, then it is a wonderful choice and it is the "best bang for the buck headphone cable" on the hifi audio market today.


Dragon Audio Cables

Quality You Can Trust

Most stock headphone cables are made of poor, ultra-thin conductors that work as a bottleneck for sound. Poor geometries, no shielding, rubber jackets, and a whole host of other issues in OEM (stock) cables can limit the performance of the headphone driver in terms of clarity and definition.

Dragon Cables are handcrafted from quality materials in Moon Audio's offices in Cary, North Carolina. All of our cables are created with ultra pure, single-crystal silver and copper strands and engineered to provide the cleanest, most musical presentation. Our wire is void of impurities and crystalline boundaries, leaving nothing between you and your music.

Blue Dragon Sound Signature

The Blue Dragon is our value fullsize headphone cable. Using copper strands, it combines the neutrality of the Black Dragon with the clarity of the Silver Dragon at a lower price point. The Blue Dragon is a good fit for improving dynamics without adding coloration. Its calm and neutral sound make it a great place to start with premium cables.

For more information on finding your signature sound, visit our Sound Signature Guide.

Blue Dragon Sound Signature

Cable Design

The Blue Dragon V3 Headphone Cable has been designed to match the Silver Dragon V3 Headphone cable but with a high purity copper conductor using the Ohno Continuous Casting Process.  The Blue Dragon V3 Headphone Cable has the same geometry structure as the Silver Dragon V3 Headphone Cable only it uses UP-OCC Single Crystal Copper conductors.

The Blue Dragon V3 is a good fit if you do not want to add coloration but want to improve clarity and dynamics in your headphones. In addition, if you do not want to tip the headphone forward or back then the Blue Dragon is a wonderful choice and is also the "best bang for the buck cable" on the market today.

The Sennheiser HD600 has been one of the best phones for classical music because of the smoother warm sound.  The HD600 is not as dark and laid back as the HD650 and so the neutrality of the Blue Dragon is the better fit for the HD600 signature.  It is a great cable for a wide variety of music genres.  If you are using a very warm tube amp and a forward headphone, the Blue Dragon is a good choice to keep the sound signature the same.  The Blue Dragon V3 is also the most flexible of the full-size headphone cables and makes a good choice for headphones that use a single entry connection point like the AKG K702 and many of the Ultrasone headphones.

"I like the...Moon Audio Blue Dragon. There are numerous cable makers out there, many are good, but many more are just hobbyists with a soldering iron and a yen to be in business. With cables, the devil is in the details, I strongly suggest using cable makers with long years of experience and a good reputation.

If you have headphones with a hard-wired stock cable and would like to have them replaced, again, it is very important to find a reputable supplier who is very familiar and competent with this type of work. I'll happily recommend Moon Audio as one such supplier.", Tyll Herstens,, February 26, 2013.

We also use the Blue Dragon V3 Headphone Cable for the Ultrasone, Sony Qualia, AKG Pro Series and any other headphone that uses a connector attachment system. This cable can also be hard wired to Grado's, AKG, and Audio Technica headphones too.

The Blue Dragon Headphone cable we use the same 4 x 24AWG Teflon insulated stranded conductors using pure single crystallized UP-OCC pure copper with 7N purity 99.99998% as the main cable.

Each conductor is made up of a special varying size stranding geometry. The copper stranding is mixed with Kevlar stranding to reinforce the conductor making it stronger overall and less prone to failure due to the harsh constant flexing a headphone cable receives.

The conductors are then surrounded by cotton and then a layer of Teflon tape.  The new version is now also shielded and placed in a polyethylene jacket for further protection.

The Version 3 is quieter than the Version 2 with no microphonics.  It is a balanced cable geometry that can be terminated for either single ended or balanced configuration.

This cable can be configured in a variety of different ways. Please note that single ended signal connection can not be converted to balanced signal connection. As the grounds are tied in the single ended connector. Therefore, only pick this configuration if your amp has no single ended connection outputs.

Hack Your Headphones

Hack Your Headphones

Dragon Cables are an easy do-it-yourself upgrade to your favorite headphones with detachable cables. With a wide array of connection options, a plug-and-play cable is just a few clicks away.

We also offer custom headphone hacks for your hard-wired cans, like many Grado, Sennheiser or AKG headphones. For more information on custom headphone modifications, visit our Hack Your Headphones portal.

More Information
Designed to fit Sennheiser


4 x 24AWG
99.99998% UP-OCC Copper
Varying Size Stranding
Cardas Silver Solder
Teflon, Foil, Braided Wire Shield
Blue Polyethylene


Blue Dragon
Fullsize Headphone
Sound Signature
Break-In Time
40 Hours

5.0 / 5.0
2 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Awakening the HD598 - Initial Impressions
After months of letting my obsessive compulsive disorder (OCD) get the best of me with how to address the two major issues befalling the HD5x8 series (and much back and forth with Drew at Moon Audio), On October 19, 2015, I ordered a 5 foot Blue Dragon ($165 USD) with a 1/8� Oyaide gold-plated connector ($5 USD upgrade charge) for my HD598s (Total cable cost: $170 USD). On October 26, 2015, I received a double-wrapped envelope from Moon-Audio with my HD598-compatible upgrade cable. From start to finish, the support was impeccable, but let me go into why I ordered this cable and what it has done from the get-go.

THE HD598s (Independent of the Moon Audio Cable)
The Sennheiser HD5x8 series are in a bit of a bind as to what they want to be. On the one hand, they resemble slightly less robust HD6x0 series headphones that would not look out of place in a studio as basic monitoring headphones. On the other hand � per the side of the box that my HD598s came in � they're suitable for use on Apple and Android portable devices such as iPods, smartphones, and iPhones. This is due to a lower 50 ohm impedance versus the 300 ohm impedance on the HD600 / HD650 headphones. There are two major problems with the HD5x8's cables that keep it from being a viably portable headphone. First, the headphones come with a 10 foot long cable, which makes portable listening difficult. Second, the headphones terminate in a 1/4� connector, and while Sennheiser includes a 1/4� to 1/8� converter jack, the use of this converter on laptops, iPods, and smartphones can cause excessive torque on the connectors, while the long length of the factory cable makes it susceptible to being tripped on and the converted jack becoming a lever to rip connectors off of the boards they're soldered on (this happened to me twice, prompting me to get a shorter and less torquey cable).
Thankfully, the HD5x8 series (and higher) have removable cables to address this issue. Additionally, the HD598 is a very neutral headphone to the point that it can be considered �bass-light.� In the $150 to $250 market it competes in, where the main player is Beats, SOL, and other �bassy� headphones, this separation by tonality puts it more in the market with somewhat more pricey AKG's and Audio-Technicas. Thus, the distance in bass between the HD598s and headphones in this pricerange commonly worn by college-age students means that, at least in theory, enough room between the HD598s being tested and a pair of beats exists in the �Bass Department� that if the Moon Audio Blue Dragon brings out more bass, that the clarity and overall neutrality of the 598s will be preserved.

The Cable Itself (Outside of Sound)
Blue� Sonic the Hedgehog Blue� which goes about as well with beige and brown as the vest and jacket from a 3-piece suit would go with a pair of torn blue jeans. Thankfully, the outside color doesn't determine the sound, but rather the internals and build quality do. Comparing the Blue Dragon to the stock HD598 cable is like comparing a McDonald's burger to a fresh burger made at the local chophouse in look, feel, and quality. It's the first step in possibly figuring out why the HD598s are so lacking in bass. OK, so look and feel may not have a great deal to do with the bass issue, but they provide clues to the craftsmanship that a company provides. The blue dragon has a sleek appearance, with no bumps visible on the surface nor the shrink-wrapping at either end. Judging by the cut on the shrink-wrapping, I'm led to believe that the cables are largely handmade rather than made by a machine, and it shows in contrast to the HD598's stock cable, which was loaded with kinks, rough rubber jacketing, and that springy stress-tensioner that only gets more leverage with the converter jack on it. Additionally, the Blue Dragon is not a super flexible cable, which can be a benefit and an issue.
The 24AWG copper conductors in the Blue Dragon, along with the various shielding and jacketing properties, contrast to (I'm going to guess 40AWG at the largest with little to no shielding) the stock Sennheiser cable by having both a particular �wrap pattern� as well as quite a bit of rigidity. Whereas the stock cable basically flops on itself with or without the converter added to it if anywhere more than a 6 inch portion is held as an overhang, the Blue Dragon rises, apexes, and droops a tad. This cable is stiff, directional (it doesn't like to be wrapped against the grain, and I don't think it should be), and reeks of quality. The downside to this thickness and rigidity is that a) the cable cannot simply be �stashed� in a case because of its directional loop; and b) I find that the cable behaves best when the cable is allowed to flop naturally, then lined up with the HD598's earcup, then screwed in, rather than trying to be screwed in with the headphones upon one's head. So what we have is a phenomenally built, gorgeous looking, sensory-pleasing cable for $170� What good is that, if it provides nothing more than a shorter and more compatible cable for the HD598? Not� Much. Thankfully, early listening proves otherwise.

Burning in a Fire-Breathing Dragon for Ten Hours
Before I go further into my review with regards to sound, I'm going to outline my listening methodologies for replicability's sake. It's a portable setup that goes with me to work. Here goes.

Player: Pono Player (Clear Kickstarter Edition)
Music Files: 96/24 WAV or 192/24 WAV bought from
Headphones: Sennheiser HD598s
Cables Compared: Stock HD598 Cable vs. Blue Dragon HD598 Cable.

Figuring �how much of a gain in sound could I get?� I set the volume on my Pono to 50% - my personal default level. Bad� bad� idea. The larger conductors and shorter cable length apparently acted like a �volume booster� for every single song I had on my Pono. 50% (which was usually comfortable) now hurt my ears and required a volume reduction back down to 35 to 40% volume. I emailed Drew at Moon-Audio, and wondered if this was merely an increase in bass compared to the stock cable, or if there was something else happening. Drew responded that because the Blue Dragons have a lower resistance (larger copper wire + shorter distance = less resistance), that there would be higher gain. With this info in tow, and newfound lower volume (so as not to go deaf at 30 years of age), I began testing.
The first song I tested was �Paranoid� by Black Sabbath (96/24 WAV). The reason for choosing this song was because with the stock cable, the bass line is thin to the point of being nearly non-existent. The Blue Dragon not only brought back the bass-line, but also made it easier for me to discern between the bass drum and the bass when the two played together. Unexpectedly, however, Paranoid's fuzz guitar solo cleanly split across the two channels. The left channel (where the headphone cable enters the headphone) delivered the �clean� track, whereas the right channel solely delivered the fuzz track. In contrast, the stock cable seemed to mush everything together, there was a bit of fuzz leakage into the left track, which concealed the overdub in Paranoid that the Dragons exposed. Some may say this �airy� behavior may detract from the loud and compressed nature of early metal, but part of music is to discover new things, and I'm all for that.
Heading a bit more in a prog-rock direction, the second song I tested was �Kashmir� by Led Zeppelin (96/24 WAV). Why �Kashmir?� First, it's one of the most famous songs of the 20th century; Second, almost everyone at least knows the rhythm to Kashmir; and Third, it has many layers of synth, strings, electric instruments, and apparently vocal overdubs. Two things I noticed with the Blue Dragons that were not noticed with the stock cable were a very subtle bass line that melded with the bass drum beat (sometimes it was off by a little, which revealed it), and in the first verse of Kashmir (starting with �Oh let the sun beat down upon my face...�) there is a very faint do-do-do-do-do-do-do-doooooo (the keyboard bit that becomes more prominent in the second verse) that can be heard in the first verse, as though John Paul Jones is prepping his synth playing. Again, bass explosiveness is increased, although it does not �compress� the music in the same way as a Beats or SOL republic headphone would. For rock music, this is a great cable.
Moving to Jazz, Fusion, and R&B, there is a bit less consistency in the improvement of sound. For Fusion, I listened to �Chameleon� off of Herbie Hancock's Headhunters (96/24 WAV). This is a bass-heavy song, and the Blue Dragon absolutely ate it up. Splat-tones in the opening became much more revealed, the bass had a newfound intensity that made me blink each time I heard it, and even the higher keyboard notes were no longer tinny. Additionally, the headphone felt faster, as while the fadeout of notes was more linear, the impact was more dramatic. Note, the HD598 is NOT a fast headphone, so it can sometimes flub bass-heavy lines or lose them altogether. This was a welcome improvement, and improves listenability. I'm going to do more testing on other fusion albums such as Bitches Brew, but for a first impression in fusion, wonderful job.
In R&B, my test sample was �Inner City Blues (Make Me Wanna Holler)� (192 / 24 WAV) by Marvin Gaye. Here we run into a slight problem. The song has a lot of highs, a lot of bass, and not very much in the middle (besides Mr. Gaye's voice). The opening bass line is complemented by the �ding� of a Triangle. Although the bass is far more focused and impactful, it comes at a slight cost to the clarity of the triangle �ding.� (Ironically, this issue was felt with the outro of �Children of the Grave� by Black Sabbath, where the blue dragon's bassiness made it a little more difficult to hear a faint hurdy-gurdy in the background.) Overall though, a very impactful listen, and truly enjoyable.
Lastly, �So What� (Stereo) (192/24 WAV) by Miles Davis. Already an EXCELLENT remaster for HDTracks (there's a video with HDTracks' backstory on this remaster), the Blue Dragon did not do very much for this album. I'm not putting any blame on the dragons, the player, nor the headphones because even with the stock cable Kind of Blue (the album �So What� is on) was fantastically remastered. When you get to more traditional jazz (or classical), I'm going to echo Drew @ Moon-Audio's sentiment to get the Silver Dragon. Although the Silver Dragon for an HD598 is cost-ineffective (the headphones are $150 to $250; the Silver Dragon is $275 minimum) to the point I'd almost be inclined to say save up for an HD600 and get balanced cables for the PONO to better serve its 300 ohm impedance.

Final Thoughts
If you're looking to buy this cable with the intention of turning your HD598s into �Stealth Beats,� just go buy a pair of Beats; these aren't the headphone for you. If you're looking to expand the clarity of traditional jazz and your source media and player are good, stick with the stock cable or skip the 598s and save up for HD 600s and possibly a cable upgrade. If your music tastes run from jazz, to rock, to early metal, you have quality media, and a quality media player that has only a single-ended output (Spotify at 128kbps doesn't count here� although Tidal @ 16/44.1 or Qobuz @ 24/96 will), then I absolutely recommend the Blue Dragon upgrade for the HD598. More volume at equivalent levels, a tighter and more present bass, and 99.9% of the neutrality of the stock setup, but does not tangle or have kinks like the stock cable. Now, the Pono player has balanced output capabilities� so about that HD650 / Blue Dragon kit with some nice balanced connectors for PONO� so, so very tempting after just how much improvement the Blue Dragon did to the 598s.

Pros: Tighter, clearer, punchier bass; FANTASTIC build quality (actual and perceived); aids in track separation for a more 3-D experience; Shorter than the stock cable; FANTASTIC customer service pre and post-purchase;

Cons: Sometimes loses a bit of the high-end sparkle and low-volume nuance; stiff cable (but that can be a pro due to the build quality); $170 for a $150 to $250 headphone may be hard to justify for some (see comments on Silver Dragon / HD598 in the paragraph on �So What�).
October 30, 2015
VERY pleased with the Blue Dragon
Dear Drew:

Earlier this afternoon I received my new Blue Dragon cable for my Sennheiser HD598 headphones. I am VERY pleased with the Blue Dragon. It has really brought the 598's alive, regardless of the source or the genre of music. Right now, I�m listening to a deep house album by Hot Since 82, �Little Black Book,� direct from the iCloud through my iPad Mini 2.

Half an hour ago, I was listening to Chopin�s Nocturnes as played oh-so-ravishingly by Maria Joao Pires on a brilliant DMG recording, but this time the source was my NAD C 516BEE compact disc player, which was feeding my Linear Designs Fournier HTA-2 tube amplifier.

During both listening sessions, I have been grinning like a kid who just got a new pony! WOW!!!

I�m a dinosaur (a Paleolithic Era, non-Golden-Ears listener who prefers to spin CDs when he�s serious about listening). In addition to expressing my gratitude for your superb craftsmanship and design in regard to the Blue Dragon cable, I�m writing to ask for your recommendation for which cable - Black Dragon or Silver Dragon - would probably work best for me with my new (just 10 days old!) Shure SRH1540 closed-back headphones.

I have been bowled over by the 1540's and, having now been introduced to the magic of Moon Audio cables, I can�t wait to hear them with one of your upgrades to the stock cable. Again, thank you very much for the Blue Dragon cable!

Best regards,
February 20, 2015
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Can I have a headphone blue dragon cable made for my Sennheiser HD 800’s?
Michael J. G on May 24, 2019
BEST ANSWER: Yes, follow the link below and choose the options you want. Black Dragon is recommended for the HD800, but Blue will warm them up a little as well.