inputs.text: provides clean strong boost - getting boat factory head unit speakers opted sonys marine unit add capability boat using ipodssiriusmp3 discs etc went great could use many new modern devices sound terrible 2 little 25 watt rms speakers dropped new polk 100 watt rms speakers much better sound head unit couldnt push enough power speakers unit would start clip sound higher volumes struggled try keep cure opted amp consider great clean clear crisp sound loud levels without distortion not biggest audiophile first install head units speakers amps clear easy understand guess next move buy sub woofer run amp buy wakeboard tower install speakers buy another amp run buy remote commander stern etcbut seriously amp improved overall sound capabilities system something want use listen