GTspirit and JBL give away three JBL MS-BassPro SQ Powered Car Subwoofers. The JBL MS-BassPro SQ is the top of the line subwoofer from JBL that can be fitted in any car’s audio system! The JBL MS-BassPro SQ has a retail value of 499 Euro. All you have to do to win one of the three MS-BassPro SQ’s and to join this competition is like JBL and GTspirit on Facebook and fill out the form here!