Thx James! That clears the air......for a moment..But FYI I just bought mine sep '2013 from MP4 which is like hardly little over 100 days old...so maybe i got mine from old stock aluminium shell with 10db hi gain printed. Still scratching my head, as the 10db aluminium shells were initially manufactured for a limited quantity of just 200(if im not wrong) and so i received a shell which is like a year and half old approximately? Hmm
So james, finally you confirm that .........
1) E12 never had 10db hi-gain but ONLY 16db for end-users.
2) E12 underwent only bass boost mods in the circuit,as told by ClieOS.
3) though older aluminium shells has the 10db marking but actually is 16db functionwise.