There you go guys hopefully you will be able to see what I have been saying all along.... adiós amigos , up in 5 hours .. catch you tomorrow.
First of all: Get well soon.
I didn‘t watch the dropbox file, I simply trust in your competence. Just thought this thing through.
Grado has not, by 99% certainty, manipulated the cable to complicate the balanced rewiring. So the 8 conductor is 2 white wires (connected (at/to the driver)) 2 blue wires (connected (at/to the driver)) - right side. 2 red wires (connected (at/to the driver)) 2 blue wires (connected (at/to the driver)) - left side.
(Maybe the unusual use/swap of red and white is a kind of trademark. I once peered in all of my Grado cups, it‘s with all of them.)
@grado labs: please use 2 blue and 2 black wires in the future. Your loyal customers and dealers will be thankful.
What we learned is, that 2 blue wires are always interconnected (at/to the driver) so the whites and 2 of the blues will always ‘beep‘ if you measure ‘pass‘. Or in the way I prefer it, will always show 28-40 ohms. Same with the reds and the 2 other blues. (Love blues!)
The, I guess, most effective rule of deduction is, the most simple cause/reason is the most likely, because it is the easiest way for things to occur (, thereby the most probably one).
At least 2 of the blues from different drivers are connected. The insulation damaged.
Above Y-splitter impossible, so:
- bad end control by manufacturer. Possible, but never heard of. (3. most probability)
- the cable was somehow extremely twisted/flexed (2. most probability)
- the outer insulation was cut slightly to deep while cutting the plug.
My suggestion:
Sacrifce another inch before resolder to 3.5mm plug.
You will automatically be even more careful then on first try. Just for the will to succeed.
If it works, don‘t get angry with this crap. Sometimes it seems as if all the several gods of destiny let us trip, not even if, but because we do what we can do best.
Seems to be their kind of humor.