Two, four and eight channel D class Fusion Apollo marine amplifiers. Designed specifically for use with Fusion Apollo stereos enabled with DSP (Digital Signal Processing) technology. Thanks to the Easy Tune2 function they can automatically adjust the sound settings to improve the sound quality. Equipped with LED indicators, full protection from electrical damage, vibration and saline environment, optimized for minimal energy consumption. Complete with brackets, screws, screw covers, power connector, connectors for speakers and manual with template.