Some of you might know, some time ago I set out to mod my Denon AH-D2000’s (D2K’s), and I started modding them by changing the cups, and then not too long ago, changing the pads on them; With these upgrades came: better comfort (pads), and a different (better) sound with the wood cups. However, each time I would want to pick up my D2K’s I would feel a little annoyed at its huge, tangle-prone wires – It was just too long, got self-tangled, twisted, and I had to actually tie up the wire as it was too long to just have lying around, even at home, on my desk.

Pictured is the new tangle-free D7K modded cable

I thus decided to go that further mile and recable them. I had the initial intention to solder these, as that’s what was said/talked about, across on the internet, but that very quickly changed to something else…

Before getting into this recabling guide, I would like to thank a few people:
-Matthew from Forza Audioworks for the soldering advice
-Austin from ZX Amateur Cables for his soldering advice
-User julianbell92 for the AWESOME help and guide on soldering the Denon’s
-Last but certainly not least, my dear father who helped me with the process, without him I could have never done this, as I didn’t have the guts nor knowledge to do it!

Warning:
Resoldering, cutting the wires, will void your warranty – Unless you can re-solder the original cable exactly how it was provided, then you will no longer have a warranty with Denon.
You should be aware, that given that the processes explained might be reversible, Denon would see the tampering of the solder/wire and thus could easily tell that it has been modified.

Tools & items needed:
–Multimeter
–Pliers, that can cut into the wires
–Electrical tape, to attach the wires
-Denon replacement cable (D2K, D5K, D7K cable, depending on what you got – In my case it was the D7K)
-Finally some guts to do the process!

A short summary/guide on what I did (this is for those that don’t want to read all of it or need a check-list – I would truly suggest reading through my whole guide, before attempting anything):

1. Disassemble Denon’s
2. Take note which driver/cup goes into which part of the frame
3. Get pliers, cut wire by driver – on one side (leave other side untouched for the time being)
4. Unknot old D2K wire
5. Insert New D7K wire
6. Tie wires together, making sure the contacts aren’t touching each other
7. Test L/R driver to see if corresponding driver is assigned to the correct side
8. Once test is complete and successful, make a knot
9. Put electrical tape, carefully making sure both sides aren’t touching
10. Cut other side (other driver)
11. Perform steps 4-7 on other side
12. Before making knot, make sure your wire coming from the splitter is even
13. Once you are sure, make a knot on other side
14. Test audio and L/R sides, before reassembling
15. Reassemble
16. Come back here and say you did it successfully and/or need help on a certain step!
17. Enjoy your new recabled Denon’s!

The soldering process is a daunting one, even for professionals – damaging an expensive set of headphones is something that no one wants to do. For me, being an un-experienced person, when it comes to soldering, it was a very daunting task – as the last thing I wanted is to damage my already awesome D2K’s, that I had already modded in other areas.
The main reason behind my recabling was mainly due to comfort, rather than anything else – I really couldn’t have cared-less about the audio “improvements” of the D7K cable could give me, over the stock D2K cable. In all honesty, I have noticed next-to-no improvement or worsened audio quality with the wire change – of course if I had a custom copper cable for example, it would output a slightly different audio output (and that’s coming from someone who never believed in audio cables) – but my cable, was just a stock D7K cable. I got my cable custom made – My request for the cable was a D7K wire, that was shortened to 1.5m (from 3m) and re-terminated with a 3.5mm jack rather than the 1/4″ jack (as I don’t have anything that has that output jack).

Left is the newly made D7K wire, and on the right is the old D2K wire

When I got the cable in, I immediately felt a difference in the quality of the wire. Whereas the D2K stock cable were heavy, tangle-prone and would give kinks in the wire whilst it was twisted or turned, the D7K cable, had none of these problems, and was in fact remarkably amazing to grasp in my hands. I just couldn’t believe how a cable that is in looks, very similar to the D2K cable, could be so much better. Of course the shortened wire was more convenient too, as I could straight away tell that this wire would be at a perfect length for the things I use my D2K for.

I should also comment on the re-termination performed by the custom cable company, is simply perfect. The jack is well protected, very professionally done, and the actual gold plated part of the jack (the actual part that goes into your source) was long and small enough to fit without any problems on my Samsung Galaxy S i9000 with a silicone case on. Meaning, I could use this with anything, rather than before, where the D2K’s jack was huge (not to mention the extremely huge D7K jack).

The left jack is the new re-terminated D7K cable, to the right is the original D2K jack

The top jack is the original D2K wire, and at the bottom is the new re-terminated D7K cable

Overall, my first impressions of my new shortened, re-terminated D7K cable were very positive.

I had another D7K cable that I had bought previously, and thus remained unchanged – here you can see what I mean by the humongous D7K jack in comparison to the already big D2K jack

Now unto the daunting task of recabling:

I was advised several things, all of them being pretty similar to each other. Here is a document, which you can download, the doc file linked is the advice & input given by the various people (they were either exchanges via PMs or emails), and again, my thanks goes out to each and every single one of them for helping me out and trying to provide their wealth of knowledge! They all involved soldering and all the advice was given via soldering the Denon’s into place.
As you can see from the document, I was advised to use a multimeter, which basically tests if there is a current that is present when you touch positive and negative, on their respective contacts.

When my dad and I put the multimeter on the Denon’s we got small readings, making the dial to move a little, although the results were never constant, nor were they consistent, so it wasn’t all too convincing. To test the cable, I was also told to do the same thing, to know which was positive and negative. It was pretty clear that black was negative, always, and the other colours, be it white, yellow, orange, or red, were the positive side of either the wires. That said we tried checking it. We put the contacts of the custom D7K wire, on the driver, whilst the D2K cable was still in tact and still soldered, to test if the D7K would pick up anything sound wise. What we were testing here was trying to see if the cable picked up the sound that was playing via my source.

Testing to see if the multimeter was working, on its own

Which meant we had the D2K cable still soldered, as it was originally made, and we had the D7K’s wire contacts on the D2K’s wire which were soldered on the driver. The D7K wire was plugged into my phone, playing a constant loop of music.
We got a very slight reading on the left driver, but apart from that we got nothing worth mentioning. After realising this, my dad looked at me, and came up with an ingenious, yet very simple method of doing the recabling of the headphones. It was so easy, yet never had I thought about it, or let alone even read or been recommended it by anyone!!
It was simple: Cut the D2K cable near the driver (thus not de-soldering and re-soldering anything) and then attaching the new D7K cable by twisting them together and protecting them with some electrical tape. Of course this wasn’t the best method, and as some people suggested “you should solder it, to get a better signal”, but as we didn’t have any experience recabling headphones (although my dad is a mechanic and has done countless amounts of wire work), the solution was to cut the wires and attach them together.

Now you might ask yourself, why do this? Why not just solder it?
Well, soldering involves tampering with the driver itself, meaning you run the risk to actually burn/damage your driver. A nice way to lose £200/400/800 worth of equipment. Also, if for some reason your cable soldering was wrong (i.e. wrong contacts) or the cable was faulty in the first place, then you spent some time, and risked your headphones trying to solder something that doesn’t actually work.
The method we used, acted as a safety net. As if the cable didn’t work, then there would be absolutely no problem in either re-attaching the original D2K cable to its cut-other-half, via tape, or even soldering the new D7K cable into place. Even though that’s what we are ultimately aiming for, the possibility of damaging the headphone’s driver is the last thing I wanted to do (i.e. incorrectly soldering them).

With this method, my dad gave us a huge safety net – a safety net that was insuring that nothing could go wrong, and even if it did, then we could reverse it, with no damage to the driver. That said, the only thing that would be lost, would be the warranty, which would now be void, but seeing as you wanted to recable the Denon’s already, you would know the implications of recabling the headphones beforehand. If you were good enough, you could potentially trick Denon, when sending them in for a warranty replacement/repair, in thinking it was never re-soldered, by putting back the original cable, and making the solder look like it was out from the factory, but you would really have to be a experienced in this domain. Nothing my dad or I could do, put it that way and more so, I have doubt if anyone could actually make it seems like nothing was touched, as if you change something, I’m sure no matter how good you are, the engineers at Denon, could post a modded/tampered headphone from a mile out.

Picture of the newly recabled Denon’s

When I was taking pictures my dad did say this: “Don’t take pictures, this is the embarrassing, cheating way of doing it” he is right to some extent but what he did also say beforehand, when talking about cutting the wire, rather than soldering it in place was: “we can cut it, and if goes wrong, we can put the cable back, as it once was. In the end, the only real difference between our method and soldering the wire, is that the soldering looks neat and tidy, if this was in public view, you would solder it, but soldering does the same job as attaching the cables together. So what difference does it make? When you are trying to put a cable to another cable or a driver? As long as it works and plays music you are fine, no matter the look, as it’s going to be hidden in the wood cup”
Quite simply brilliant, I couldn’t agree more. Why risk it, when you can “safely do it”?
I can almost bet from an audiophile point of view, they would say that soldering isn’t the same and doesn’t render the same results as attaching the wire etc…but in all honesty, people that say that are over-exaggerating – It’s not like I’m going to send this in to the physics department, and them to test the sound waves or heat generated from the wire being soldered vs the wire being attached together via tape.
That said, at some point I would like to solder the Denon’s in place by a professional, but for the time being, I’m very much happy with what I got and have achieved. All the modded work I have done on the Denon’s, I have personally done – and thus feel a great sense of accomplishment.

Now, after the cable was cut, we had to do some adjustments, which are actually quite crucial in the process:
-When cutting the cable, try to give yourself a little extra bit of cable to work with (on the driver end) so that you can attached the new cable with them, with ease.

-You should also make sure when attaching the new cable and old cable together, that the contacts ARE NOT touching together (or else it would cause shorting, and thus might damage your headphones)

-When striping the cable ends, make sure to twist them fully, and then when attaching the old cable to the other end of the new cable, twist them together (black on black, for your negative side and the other colours, which represent he positive side, together)

Another quite important factor is the LENGTH of the cable used. When cutting the wire, you can’t be sure how much you will need to attach the 2 cables together. Thus after un-knotting the old D2K cable, when it had been cut, we needed to insure the D7K cables were evenly placed. Maybe it’s a little hard understanding what I’m trying to say here, but basically, from the Denon splitter on the wire, going up to the headphones, that wire that usually is where your neck is, which separates the left and right driver, had to be at an even length, or else the wire would be lob-sided. So after cutting the wire on the D2K, we made sure to have the same length on the left and right hand side driver.

The best way to do this, is to extend the wire and tug it – here you would adjust the new knot you put in place for your D7K wire. Thus if it was too long or short on either side, you would adjust the knot inside the cup housing. This is all done before attaching, or as a matter of fact soldering, the cables; as you would want to be sure you got the same length on either side. This was something else that my dad pointed out, that was again, never mentioned or something I hadn’t read anywhere else. Such an important factor in the whole process, as it is vital to have the splitter going straight down from your head, rather than lob-sided to the left or right, because you cut and/or knotted it in the wrong place.

A major thing that wasn’t also apparent to us was which side was left, and which side was right – last thing you’de want is putting the wires in place, and then finding out the right side is playing on your left ear!

There was a little guess work involved here, which as you can see isn’t professional at all on our part (and another reason why we didn’t solder the cable), but in the end we attached the RED cable end of the new D7K wire, with the ORANGE side of the RIGHT driver, and the black and black wires together.

After doing so, I did tell my dad, “let me test at least, before we attached the other wire”. At the end of the day, it didn’t really matter for us if we got it wrong, as we could EASILY reverse the wires, whereas, again if we had soldered them together, it would be taking on another risk, of damaging the headphone’s drivers.

I should also mention, in case you weren’t sure, that the RIGHT driver goes on the part of the frame, where there is the sticker (just in case I overlooked that aspect, I thought to take a picture of it, just in case I forgot which side went where during the process)

Here is the sticker I’m talking about, and just to be on the safe side, I put a black line across the sticker (which I think is the serial number) of the headphones. Not like it matters really, but rather be safe than sorry.

So, we very simply hooked up the D7k wire (remember only one side was actually put together with the D2K driver/wire), and on poweramp, a music player on android, I switched the R/L knob to RIGHT – meaning I should hear the music louder on the right side, than what would be playing on the left side. When playing with this knob, it was evident that we had guessed correctly, and the right driver was assigned with the red cable, and NOT the white cable, that was used for the left side.
After testing, we went ahead and did the same thing with the LEFT driver, attaching the D7K’s WHITE cable with the D2K’s YELLOW cable, and again putting black on black cables together.

After attaching them together, we put the electrical tape carefully remembering that the two sides shouldn’t touch, and again before just before assembling the headphones, testing to see if either driver was not picking up the signal and if we had got the left and right side correct. All checked out, and I reassembled the headphones.

I could tell straight away that the new cable was shorter and MUCH more convenient to use. It was remarkable what we had achieved at 2am in the morning with my dad. I must say the whole process, from start to finish took around 1hour, as we took our time, and were in no rush (even though I had to wake up around 6hrs later to catch a train)

In the end I’m thoroughly enjoying my recabled Denon’s and definitely couldn’t have done it without people’s advice, but more so, couldn’t have done it without my dad!
The cable is much better, doesn’t tangle, can be twisted and turned as many times as I want, and more so goes into my pocket, and doesn’t feel like I’m carrying a SLR camera in my pocket…!

Why did Denon make such a long cable, and more so such an annoying (D2K) cable, is beyond me. This was one of my major complaints in my review of the Denon AH-D2000, especially seeing as this headphone is supposed to compete, in HMV, with the Beats Pro’s, and before you think of mentioning it, the Denon’s absolutely destroy the Beats pros in every single aspect. I’m just saying Denon advertises them to the general public (almost) and yet fails to understand that this cable might be a major deterrent to people buying it – there will always be people that want the longer cable, for watching TV at a distance and what not, but I have never had a cable that extends from my PC to the other side of my room…Bear in mind I was and am using the Denon’s SOLELY at home, at my desk, and I still found the cable too long for my liking. These poor sods haven’t seen the outside world yet, although now I will be more tempted to take them out with their shortened cable!

I really hope this helped you!
Please feel free to drop me a comment below. I know it’s a very daunting task, especially for someone in the same position/lack experience as myself, so don’t be shy!

Just an update on the Denon’s they are going strong and still working perfectly.
For those that want that permanent solution, by soldering and recabling the Denon’s, Vegar (who posted on here too) made a nice and comprehensible recabling guide. It can be found on his blog! Please do remember the dangers of soldering though.

–TotallydubbedHD