Doubt it. If it would, why wouldn't Martin Logan include the better cord? Seems like they would have the biggest interest of anyone in their speakers sounding the best possible, even a bigger interest than the individual consumer. Martin Logan's are not inexpensive speakers, the cost of a better power cord would not add that much to the cost of the speakers. Why not call Martin Logan and ask them their opinion since they manufactured the speakers ?
AC power cords and martin Logans
Will a AC power cord make a difference in performance over the stock cords that come with the speakers? Has anyone tried this and what were the results?