- What's in the Box
MB Quart NA3-560.4 Class SQ 4-Channel Marine Audio Amplifier 70 Watts RMS x 4- Silver
Equip your boat with this four-channel MB Quartz NA3-560.4 Nautic marine amplifier for enhanced sound quality. Sound control is retained using variable electronic crossovers, while ,FLUID-FETs produce powerful, high-quality sound. This MB Quartz Nautic marine amplifier boasts marine-grade protection from water and dust and a heavy-duty heat sink for effective cooling.