@synchro_01: In the pink noise test, I'm not sure whether the difference in sound quality is on tone or timbre. Basta iba yung tunog.
Anyway, as I have mentioned, I opted for the 12 gauge wires as replacement. Due to the thickness, id didn't fit in the speaker terminals. To make the ends fit, I had to trim about 1/4-1/3 of the copper at the ends to reduce the copper thickness.