ltua
New Head-Fier
- Joined
- Jan 7, 2003
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I had two pairs of these headphones stop working because the cord got snagged, stretched and tore the wiring inside. This problem frustrated me until I figured a solution to it so I figure I post my process in case someone else ever comes across this. If this has been already said before me, my apologies.
(Mind you that this will entail opening the headphone cans to get at the wire inside and there is some soldering involved. This will most certainly void your warranty. I tried it because the set was already 'broken')
This is my first time posting and my experience with this sort of thing is very limited so I ask you to bear with me.
It seems that the factory installed cord in the 7506, also known as the V6, I believe, is rather flimsy. It's made out of vinyl and it becomes very easy for it to get stretched which causes the delicate wiring inside to tear as it is composed of a type of 'spun fabric' wire, for lack of a better term. Once this happens it's next to impossible to splice the cord back together since this spun wire seems to actually have a kind of nylon wrapped around each thread which is apparently non-conductive and repels the solder.
After having had my third pair of these headphones break, it dawned on me that I had been using an extension cord made out of tough rubber. I do not know if an extension cord can make an audible difference in sound quality but I have always been satisfied with the way my set played while attached to this cord. i realized that this meant the cord obviously had corresponding wiring within that matched that of the factory cord! As you can see, this was quite a revelation for a simpleton like myself.
After that, it was a matter of stripping the extension cord, cracking the left can open and soldering away. I was lucky enough to get left/right properly on my first try since there is no clear indication of which is which by looking at the wires out of the extension cord. This is something I might have to play with on my next try. Then again, red and white probably do mean something and I just don't know it.
The factory cord is looped around a retainer inside the can. I disregarded the loop and made a knot on the replacement cord instead. I can probably hang from this thing now before it ever pulls.
I don't know if this is something particular to the 7506's but there seems to be a 'grounding' wire inside the cord. A third wire colored amber. I noticed that, inside the can, this wire was attached to what seemed like the same connector as the wire that is outbound to the right channel speaker. The extension cord I used had an inner 'wrap' of tough aluminum wire. Untreading this wire I soldered it to the same connector as this 'grounding' wire. This was after my first test when I noticed that the sound seemed rather distorted, didn't have that deep bass these 'phones usually have. Soldering this wrap seemed to fix the problem.
My set sounds awesome. I did notice a slight, almost imperceptible difference in the lows afterwards. This however was while trying the fixed set next to a new, untouched one. I theorize that I might have let a little too much cord inside the can and that this might make a slight change in pressure inside the enclosure [??]. Wildly speculating here, of course. I don't know if such a thing even happens. Might be the cord I used after all.
Again, I don't know if all extension cords are created equal but this was one I picked up at a local music equipment store. Didn't seem to have anything special to it. Regular rubber 25 foot with mini plug.
Hope this is of use to someone someday.
Regards
LT
(Mind you that this will entail opening the headphone cans to get at the wire inside and there is some soldering involved. This will most certainly void your warranty. I tried it because the set was already 'broken')
This is my first time posting and my experience with this sort of thing is very limited so I ask you to bear with me.
It seems that the factory installed cord in the 7506, also known as the V6, I believe, is rather flimsy. It's made out of vinyl and it becomes very easy for it to get stretched which causes the delicate wiring inside to tear as it is composed of a type of 'spun fabric' wire, for lack of a better term. Once this happens it's next to impossible to splice the cord back together since this spun wire seems to actually have a kind of nylon wrapped around each thread which is apparently non-conductive and repels the solder.
After having had my third pair of these headphones break, it dawned on me that I had been using an extension cord made out of tough rubber. I do not know if an extension cord can make an audible difference in sound quality but I have always been satisfied with the way my set played while attached to this cord. i realized that this meant the cord obviously had corresponding wiring within that matched that of the factory cord! As you can see, this was quite a revelation for a simpleton like myself.
After that, it was a matter of stripping the extension cord, cracking the left can open and soldering away. I was lucky enough to get left/right properly on my first try since there is no clear indication of which is which by looking at the wires out of the extension cord. This is something I might have to play with on my next try. Then again, red and white probably do mean something and I just don't know it.
The factory cord is looped around a retainer inside the can. I disregarded the loop and made a knot on the replacement cord instead. I can probably hang from this thing now before it ever pulls.
I don't know if this is something particular to the 7506's but there seems to be a 'grounding' wire inside the cord. A third wire colored amber. I noticed that, inside the can, this wire was attached to what seemed like the same connector as the wire that is outbound to the right channel speaker. The extension cord I used had an inner 'wrap' of tough aluminum wire. Untreading this wire I soldered it to the same connector as this 'grounding' wire. This was after my first test when I noticed that the sound seemed rather distorted, didn't have that deep bass these 'phones usually have. Soldering this wrap seemed to fix the problem.
My set sounds awesome. I did notice a slight, almost imperceptible difference in the lows afterwards. This however was while trying the fixed set next to a new, untouched one. I theorize that I might have let a little too much cord inside the can and that this might make a slight change in pressure inside the enclosure [??]. Wildly speculating here, of course. I don't know if such a thing even happens. Might be the cord I used after all.
Again, I don't know if all extension cords are created equal but this was one I picked up at a local music equipment store. Didn't seem to have anything special to it. Regular rubber 25 foot with mini plug.
Hope this is of use to someone someday.
Regards
LT
