pyiteac, enjoy your cables! You owe no excuse for what you hear or how to enjoy it to anyone.
We love a good cable thread, and the debate will rage on for a long, long time.
Do not take it personally in any way.
Great thread!
OK, here's one:
Make a 3-foot pair of interconnects with radically different metallurgical properties from the set which you have...say a pair made from iron(!), aluminum, or galvanized fence wire.
Be sure the inner conductor is insulated from the shield, perhaps with spaghetti or heat shrink.
I suggest that you steal a short length of shield braid from a piece of coax, like RG-58/U or RG-59/U to complete the wire.(push it together like a Chinese fingercuff and slide your center conductor through it)
Or if you really want to make a point, wrap the same material around the inner for the entire wire run.
The hardest part is the electrical contact of the center conductor of the RCA jack.
Be sure that it is a very clean and mechanically solid connection, as solder will likely not work.
It will not age gracefully, so use it for a short time and discard it or prepare to redo the connections often.
Now give THAT a listen and see if it makes a change.
I put forth the idea that if you cannot hear a difference, why would an elliptical wire be better than round, or oxygen-free copper be better than oxygenful(?) copper, or even pure silver?
BTW, I'm sure that long interconnects/mic cables will bring in the noise, just like any other "antenna" would.
The length will also add impedance, mostly in the form of resistance and capacitance and cut your high end a wee bit, if what I am told is correct.
Here's something to ponder, if you're so inclined: