Rockford Fosgate's Prime Series R2-200X2 amplifier can power two speakers with 50 watts RMS each, so you'll hear your music clearly over the noises of the wind and road. You could also use this amp in bridged, 1-channel mode to power a subwoofer with up to 200 watts RMS. High- and low-pass filters help you get maximum performance from the speakers in your vehicle.