I m a fans of MTX Audio & user of thunder 8000 series, if i m not mistaken, this is 2008-2009 model. first of all can u show the buyers the serail number on the rear round black magnet? can u take a closer pic on the woofer cone? The ori is slight dark silver chrome. The rear should b chrome around the black magnet, rear side ventilation is different & the MTX logo should b sharp. I might b wrong but I always travel to Singapore to research & buy ICE. I even have tons of Audio catalog. sorry if i misjudge. T.Q