Alpine S2-A55V Marine Audio It features differential inputs with

It features differential inputs with high-level auto turn-on

Hi-Res Frequency Response: The Alpine R-A90S offers a wide frequency range for compatibility with Hi-Resolution Audio

frequency response: 26-200 Hz

Includes left and right replacement grilles for select 1998 to 2013 or newer Harley-Davidson models

so you'll get punch with minimal distortion

Alpine S2-A55V Marine Audio It features differential inputs withHigh resolution power for your whole system Alpine's Next Generation S Series S2 A55V 5 channel amplifier will deliver 40 watts RMS of pristine high fidelity signal to each of your car's front and rear speakers while powering a subwoofer with up to 300 watts RMS at the same time. The amp's combination of extended high frequency response in its 4 channel section and extra bass power from the sub channel brings your music to life, with all the precise