Class D, 70W x 2 Zone AmplifierFUSION's Marine Zone Amplifier is designed to support the multi-zone technology. The Zone Amplifier is small, enabling discrete installation and when combined with the Marine Stereo Unit provides the platform for a True multi-zone audio system.Why Do I Need A Zone Amplifier?A Marine Zone Amplifier is needed if you are planning a multi-zoned system, comprising of three or four zones.FUSION's Marine Stereo Units have the capability to run up to four pairs of speakers. You will also need to install a Marine Zone Amplifier if your sound system has more than four pairs of speakers.Features:2 ChannelClass D70W x 22 Ohm StableWater resistant designConformal coated PCBAudio detect selectable function the amplifier turns on when audio is detected and goes to sleep / low power mode when audio is not presentSelectable high pass/ full range settingVariable high pass filterSmall and discrete size: 128 x 78 x 51mmHigh Pass Crossover: 60Hz-600HzOperating Range: 10-16V DCMax Power Rating (Watts): D-Class 70WRatings per channel: 20W RMS @ 4 ohms per channel: 33WRMS @ 2 ohms per channelWARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.