inputs.text: wow difference - firstly skeptical purchasing ampifier class amplifier several mehembers car audio forums saying ab amp better class except sweet apline baby install amp rockford pbr300x4 75 rms fried two days constantly running hot read many reviews bad boy sold went today local car audio shop installed ampline amp wow difference sound quality 5 steps beyond previous rockford importantly birth certificate saying 126 rmsi set gains settings hear clear crystal music important speakers german maestro status line front back 60 watt rms amplifier drives thehem easily without getting hot believe price fair kind overall quality get glad switched rockford amp sweet baby alpine