Hifonics TPS-A600.5 600W 5-Channel Marine Audio Amplifier Amp RZR/ATV/UTV/Cart Hifonics TPS-A600.5 600W 5-Channel Marine Audio Amplifier Amp RZR/ATV/UTV/CartHifonics TPS-A350.4Class-D Full Range 2-Ohm Stable 5-Channel Powersports AmplifierPeak Power Rating:4 ohms: 40 watts x 4 chan. . 100 watts x subwoofer chan.2 ohms: 80 watts x 4 chan. . 200 watts x subwoover chan.Total power output: 600 wattsTested to withstand water . dust . mud and vibrationPulse Width Modulated MOSFET power supply5 channel operationLow-pass filter on subwoofer channel: 50 – 150 HZ3-way protection circuitry (thermal . overload . and speaker short protection)Heavy duty aluminum alloy heat-sinkFrequency Response: 20 – 20 .000 HzSignal to Noise Ration: andgt; 90 dBVariable Bass Boost: 0 to +12 dB bass boostWired bass remote includedFuse Rating: 40 A x 1Dimensions: 3.7″W x 8.46″L x 1.77″HAuthorized Internet Dealer1-year Manufacturers Warranty