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Shorten Headphone Cable

post #1 of 17
Thread Starter 
I have no problems making interconnects (mini to mini) with ease but I am still apprehensive when it comes to shortening my headphone cable. What I would like to do is shorten the cable and replace the mini connector. I have a multimeter but an not sure how to find out what wires are to what signal.

Any instructions or photos would be appreciated.

Cletus
post #2 of 17
what headphones do you have?

thats an important start.
post #3 of 17
Thread Starter 
Quote:
Originally Posted by nikongod
what headphones do you have?

thats an important start.
audio technica a900's
post #4 of 17
I'm looking for that same sort of directions for Super.Fi 5 Pro's if anyone can help

-SHatz
post #5 of 17
Here is the way to wire the plug from the excellent Van Den Hul FAQ's:

http://www.vandenhul.com/artpap/wiring.htm

Assuming the cable has colour-coded wiring, you can cut it then confirm which cable is left/right by testing the cut off plug.

I have done this by using a battery to put provide a voltage differential and testing with a multimeter. This allows me to determine which coloured wire is left and which is right. I then wire up the new plug. I am sure there must be an easier way, but I only ever figured out how to use a voltmeter

I have a test CD that has left and right channel tests to confirm once everything is wired up.

Search around for the post were the guy recabled his DT880's. There are plenty of good pictures there.
post #6 of 17
Thread Starter 
Quote:
Originally Posted by riffer
Here is the way to wire the plug from the excellent Van Den Hul FAQ's:

http://www.vandenhul.com/artpap/wiring.htm

Assuming the cable has colour-coded wiring, you can cut it then confirm which cable is left/right by testing the cut off plug.

I have done this by using a battery to put provide a voltage differential and testing with a multimeter. This allows me to determine which coloured wire is left and which is right. I then wire up the new plug. I am sure there must be an easier way, but I only ever figured out how to use a voltmeter

I have a test CD that has left and right channel tests to confirm once everything is wired up.

Search around for the post were the guy recabled his DT880's. There are plenty of good pictures there.
Right, I can just use my multimeter to figure out the configuration off the cut mini plug. Duh, why did'nt I think of that in the first place. So when I cut the cable, there will be 3 wires, a left right and ground. I can figure the tip is going to be the Left, the ring is RT and the sleeve is going to be the ground and if they are colored it should be easy. If they are not I am hosed.
post #7 of 17
Quote:
Originally Posted by Cletus Bocephust
Right, I can just use my multimeter to figure out the configuration off the cut mini plug. Duh, why did'nt I think of that in the first place. So when I cut the cable, there will be 3 wires, a left right and ground. I can figure the tip is going to be the Left, the ring is RT and the sleeve is going to be the ground and if they are colored it should be easy. If they are not I am hosed.
Maybe strip off the cable cover and insulation first then test the wires and mark them before cutting.
post #8 of 17
Any updates here? It's exactly what I plan to do if I can muster the courage to pull the trigger on the a900s.

That 3m cable is just too long for my needs, and I'm going to make a ~1.5m cable and a ~1.5m extension out of it.

Incidentally, I was going to use the Neutrik NYS231BG connector - will it fit around the cable? I don't know what diameter the cable is, and I don't know what diameter the connector accepts. :noob:

Also, while I'm at resurrecting an old thread, what sort of female connector should I use to make the extension cable?
post #9 of 17
Quote:
Originally Posted by bindibadgi View Post
Incidentally, I was going to use the Neutrik NYS231BG connector - will it fit around the cable? I don't know what diameter the cable is, and I don't know what diameter the connector accepts. :noob:
The diameter of the opening is 4mm, but it can easily be increased with a dremel. Neutrik makes an inline jack: NYS-240BG.
post #10 of 17
Put whatever color coded tape you want on the cables and then snip them. Then, test for continuity between the plug and the wires of the newly cut cable to figure out which color is left and which is right. Mark it down on a piece of paper. Then you will know what is right and which is left.
post #11 of 17
Thanks threEchelon.

Any word on the diameter of the a900 cable, and whether the wires are colour coded?
post #12 of 17
ATH typically uses black for ground, red for right signal and clear for left signal.

Worse comes to worse open them up and have at it with the multimeter... but that said snipping the plug and using the meter to find the wires in the plug works just as easy.
post #13 of 17
Thanks guys.

mminutel for some reason I didn't see your post before I submitted mine - You must have submitted while I was reading or something.

Anyone with a900s and some calipers (or a ruler)? I'd like to order the phones and the parts at roughly the same time, so I can get to work with the mod before I've had to lug the 3m cable around for too long.
post #14 of 17
Oh, another thought: if I somehow snip the whole thing or lose track of my markings and in the worst case the wires aren't colour coded (which is unlikely I know), could I put a small voltage (like from a nearly dead AA battery or something) across wires and listen to the cans to see which wire is which? If I knew that the voltage would not harm the phones, then I could easily figure out R, L and ground from such a test.

Is that a stupid idea? You can tell me if it is.
post #15 of 17
Never run DC voltage through headphones. You will destroy the drivers.
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