I would like to know how you came up with no more than an 8 foot pair of wires for the speaker to be optimal? My speakers are across the room from the audio rack and I have two 23 foot speaker cables going under the floor to the speakers. Works great and sounds fantastic. Just because you have your own opinion doesn’t mean it is right or wrong.
How do I know? Tried it both ways. Tried it many ways. Lotta other stuff too. More than you can even imagine. That's how I know.
"Works great and sounds fantastic." Compared to what? You tried it both ways? I don't think so. If you did, you would be the one guy on the planet preferred the sound of 23 feet of lamp cord to 6 feet of audiophile grade speaker cable. With that kind of experience, you should write it up. What the interweb is for. I know I would sure like to read about it.