To run the phones balanced, you'd have to take apart the phone cup with the cable,
and rewire it. The two "grounds" have to be electrically separate. Right now they are
connected together internally, and to the plug common.
Still, the two channels will have a common connection. That cable will certainly work
if you drive them with an unbalanced amplifier. Don't use a balanced amplifier, though.
Ok, so the 4 wires are at the headphone socket, and you just need to replace the 3 pin socket
with a 4 pin socket, and rewire it.
I think it, there is a better explanation, what I could be done ever:
Balanced Headphones Guide - headphone.com
My Balanced WHAMMYs something like that above.
Balanced Headphones Guide - headphone.com
My Balanced WHAMMYs something like that above.
I think this advice is wrong. The HD598 is natively balanced, the original cable has 4 contacts on in to connect to the headphone which itself has 4 contacts inside so is natively balanced. The cable has 4 wires inside 2 of which are connected to to ground at the source end to undo the balanced nature of the cable.
So with the original replacement cable, all you need to do is cut off and reterminate the source end of the cable. You do not need to modify the headphone itself.
I think the HD598SR would be the same for the non-phone cable (cable without the microphone).
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