I have two Rockford Fosgate Punch Z 10 inch subwoofers which are rated at 100watts rms and 200watts peak. I need a new amp and I hear that regular Sony amps ****, but the ES models are pretty good. I don't want anything close to a compitition system, but I want a system with very good bass. Since the Sony ES XM-1902GX is rated at 150 x 2 watts, would my Rockfords be able to handle that??? Does anyone know if those amps are any good? I've found them for $175 new. Thanks.