Alpine's X-Power amplifiers use the latest amp technology to play your music loud and clean without taking up much space. And these super-compact amps employ some of the same circuitry developed for Alpine's top-of-the-line PDX digital amps so they'll bring exceptional sound to almost any ride. The MRX-F30 4-channel amp puts out 50 watts RMS per channel, so you'll have plenty of volume to fill your listening space with music. You can even use it in 2-channel mode to drive a pair of components or subs with 150 watts each. Onboard frequency filters let you tailor the output to fit your setup, and a bass boost on the rear channels helps to fatten up the sound. A power management system optimizes the amp's performance and keeps the music playing, even when you're pushing it hot and hard for a long time. Speaker-level inputs with an automatic turn-on feature simplify system hook-up.