I have the subwoofer now since 4 months and above the bass fascinated just still like the first day I got him in a Fiesta '04 with a Crunch MXB-1100 MkII Blackmaxx monoblock 1x550 watts RMS installed and the bass is just so hard that it does almost painful. However, one should also interpret the rest of his system, it is strong otherwise the Sub drowned out everything else. I would buy him definitely be back