Я так понимаю разница в спейсинге, ALX-F под флойд.
Цитата с сайта EMG:
"Now, in one package, a player can get all the reliability and innovation that EMG is renowned for, and all the aggressive guitar tone that Alexi is well known for. The set is available in a Floyd Rose version (F-ALX) and a standard Tuneamatic version (ALX)."
10 евро за разный спейсинг это конечно сильно