The "most foolish" loudspeaker tweak/upgrade ... is


I suggest Von Schweikert Audio's "ULTRA Internal Wire Upgrade" at a 'mere' $39,700..

ptss
Wilson Audio's literature at some point mentioned the importance of the number of turns in the twist connecting drivers.  Take if for what it's worth. 
So, these cables are worth the $39k price tag...and can out perform cables below this price point...because of the number of twists??
Whoa! Hey, that guy’s voice is enough to creep any newbie half out of his wits. Part Vincent Price, part Bela Lugosi. And what’s up with all these low post trolls all of a sudden? Was there a cattle call?

@geoffkait They forget the password to the account with all their other posts. Besides, somebody has to provide relevant experience...besides "getting your numbers up". Plus its an easy, enjoyable way to pass time. All the subjectivity and blatant disregard for all things non-subjective adds perspective to the hobby. I welcome it!
I spoke to Richard Vandersteen about this very thing....it seems when developming a speaker, they listen to many wire types/brands before selecting the one they want.  Sometimes the less expensive wire wins ....sometimes different wire is selected for tweeter, mids, etc.