Rockville RXM-S30 Micro Marine/ATV Amplifier 2400w Peak 4 Channel 4x150W+Amp Kit Rockville RXM-S30 2400 Watt 4 Channel Proton Micro Marine Car Amplifier. Marine amplifier with conformal coated PCB board. High-Speed MOSFET Power Supply. Studio-Grade Bipolar Output Stage Transistors. Double Sided Surface Mount (SMD) PCB Design. Current drawn @ MAX RMS output: 27A @ 4ohm, 40A @ 2ohm. Efficiency @ MAX RMS output: 65% @ 4ohm, 60% @ 2ohm. 2-Ohm Stable Stereo. 4-Ohm Mono Bridgeable. 3 Channel Mixed-Mono Capable. Input sensitivity: 20mV-6V. Mute and Delay Soft Start System. Full IC-Controlled Protection Circuitry. 2 CH / 4 CH Input Mode Switch. RCA Preamp Line Output. 8 Volt Preamp Circuitry. Status Mode LED Indicator. 4 Gauge Lucite Encapsulated Power/Ground Terminals. 12 Gauge Lucite Encapsulated Speaker Terminals. Frequency Response: 15Hz - 20KHz. Continuously Fully Adjustable 12dB / Octave Crossover with Differential Circuitry. Continuously Fully Adjustable High Pass Crossover: 50HZ  250HZ. Full Adjustable Crossover Controls: low pass, high pass, and full pass. Rockville RMWK4 4AWG Guage Waterbrroof Marine/Boat Ambrlifier Wire Installation Kit. 25 Translucent, Twisted Pair, High Quality, Tinned-CCA Flexible PVC RCA Cable. 20 4 Gauge High Current, Low Imbredance, Clear Flexible Power Cable with 3 Black Poly Woven Mesh to better resist chemicals in the battery combrartment. 4 4 Gauge High Current, Low Imbredance, Light Blue, Flexible Ground Cable. 25 16 Gauge 100% Tinned-OFC, White, Non-Transbrarent Resin PVC, Flat Sbreaker Cable. Rockville MRCA20 RCA Interconnect Cable. 20 Ultra-Flexible PVC Shield. Twisted Pair. Premium Audiophile Marine RCA Interconnect Cable. High Performance Water Proof RCA Plugs. Tinned Copper Strands for Sonic Purity. Outstanding Noise Rejection, Accuracy, and Frequency Response. (1) Rockville RXM-S30 Micro Marine/ATV Amplifier 2400w Peak 4 Channel 4x150/CEA Rated (1) Rockville RMWK4 4 AWG Waterproof Marine/Boat Amplifier Installation Wire Kit (1) Rockville MRCA20 20 Foot Twisted Pair Marine RCA Cable Rockville RXM-S30 2400 Watt 4 Channel Proton Micro Marine Car Amplifier 400 Watts (4 x 90 Watts) at 4 ohms and 1% THD+N 600 Watts (4 x 150 Watts) at 2 ohms &lt; 1% THD 600 Watts (2 x 300 Watts) bridged @ 4 Ohms &lt; 1% THD 800 Watts (4 x 200 Watts RMS) @ 4 ohms 1200 Watts (4 x 300 Watts RMS) @ 2 ohms 1200 Watts (2 x 600 Watts RMS) @ 4 ohm Bridged <span class="a-text-bold">Peak Power:</span> 2400 Watts (2 x 1200 @ 2 ohms or 1 x 2400 @ 4 Ohms) Marine amplifier with conformal coated PCB board High-Speed MOSFET Power Supply Studio-Grade Bipolar Output Stage Transistors Double Sided Surface Mount (SMD) PCB Design Selectable +6dB/+12dB Bass Equalizer @ 45hz <span class="a-text-bold">Channel Separation:</span> 50 dB <span class="a-text-bold">Current drawn @ MAX RMS output:</span> 27A @ 4ohm, 40A @ 2ohm <span class="a-text-bold">Efficiency @ MAX RMS output:</span> 65% @ 4ohm, 60% @ 2ohm 2-Ohm Stable Stereo 4-Ohm Mono Bridgeable 3 Channel Mixed-Mono Capable <span class="a-text-bold">Input sensitivity:</span> 20mV-6V Mute and Delay Soft Start System Full IC-Controlled Protection Circuitry 2 CH / 4 CH Input Mode Switch RCA Preamp Line Output 8 Volt Preamp Circuitry Status Mode LED Indicator 4 Gauge Lucite Encapsulated Power/Ground Terminals 12 Gauge Lucite Encapsulated Speaker Terminals <span class="a-text-bold">THD+A:</span> 0.01% <span class="a-text-bold">Frequency Response:</span> 15Hz - 20KHz Continuously Fully Adjustable 12dB / Octave Crossover with Differential Circuitry Continuously Fully Adjustable High Pass Crossover: 50HZ  250HZ CH1 &amp; CH2 High Pass 50Hz - 250Hz CH3 &amp; CH4 Low Pass 50Hz - 250Hz CH3 &amp; CH4 High Pass 50Hz - 250Hz Full Adjustable Crossover Controls: low pass, high pass, and full pass <span class="a-text-bold">Sensitivity: </span>100dB @ 1w / 1m <span class="a-text-bold">S/N Ratio:</span> &gt;90dB <span class="a-text-bold">Damping Factor:</span> &gt; 200 @ 100Hz 2 x 30A Fuses 7 LBS <span class="a-text-bold">Dimensions:</span> (W x H x L) 6.7? x 1.98? x 12.28? Rockville RMWK4 4AWG Guage Waterproof Marine/Boat Amplifier Wire Installation Kit 25 Translucent, Twisted Pair, High Quality, Tinned-CCA Flexible PVC RCA Cable 20 4 Gauge High Current, Low Impedance, Clear Flexible Power Cable with 3 Black Poly Woven Mesh to better resist chemicals in the battery compartment 4 4 Gauge High Current, Low Impedance, Light Blue, Flexible Ground Cable 25 16 Gauge 100% Tinned-OFC, White, Non-Transparent Resin PVC, Flat Speaker Cable 20 Blue Remote Wire 1PC Silver Mini-ANL Fuse Holder  Clear Shell and Clear Blue Bottom Bracket with Blue Waterproof Ring 1PC 60A Mini-ANL Fuse 2PCS Ring Terminals 2PCS Spade Terminals 5PCS Speaker Cable Terminals 1PC Washer 10PCS White Cable Ties Rockville MRCA20 RCA Interconnect Cable 20 Ultra-Flexible PVC Shield Twisted Pair Premium Audiophile Marine RCA Interconnect Cable High Performance Water Proof RCA Plugs Tinned Copper Strands for Sonic Purity Outstanding Noise Rejection, Accuracy, and Frequency Response