Apparently Mfsl put a few SUPER VINYL in some of the KOB .Everything in the box is the same except the vinyl is super vinyl you can see through the light . I’ve only played this once . I have anther one . I compared it to the 45RPM CLASSIC RECORDS .AND IT WAS MUCH BETTER . Compared to the Mfsl KOB WITH THE SUPER VINYL , THERE IS A BIG DIFFERENCE . It’s MUCH QUIETER , HAS MUCH MORE DETAIL . ALSO BETTER SOUNDSTAGE AND I FIND IT MORE EMOTIONALLY ENGAGING !If you like KOB .. ...r>