Amplify the moment with an Apollo™ marine amplifier - designed specifically for use with your Fusion® DSP-enabled marine stereo and Fusion speakers. These powerful and efficient amplifiers are the difference between hearing the music and feeling it. With an impressive 150-watt RMS per channel (at 4 ohm), the amplifier can power just speakers or speakers and subwoofer. The Easy Tune feature automatically regulates audio settings for the best sound quality without manual adjustments (Requires setup using the Fusion-Link™ app on a compatible smartphone). 150-watt RMS per channel (at 4 ohm)Efficient Class-D Design uses less powerEasy Tune FeatureLED IndicatorIgnition ProtectedConformal Coated PCBsPowder Coated Aluminum Finish