I don't know, how many times are you going to keep repeating this incorrectly? I am interested to hear your technical explanation of how the voice coil will "break down over time and kill the sub." I bet you would also say to never run only one voice coil of a DVC sub, too, right? You say that the signal to the voice coils does not add together when wiring one channel to each voice coil, but what does bridging an amplifier do? Hint- It.............adds the left and right signals together!