Rockville RXD-F20 Micro Car/ATV Amplifier 1600w Peak 4 Channel 4x100W+Amp Kit 1600 Watt Peak / 800w RMS 4 Channel Car Stereo Amplifier. High-Speed MOSFET Power Supply. Studio-Grade Bipolar Output Stage Transistors. Fully Adjustable 12dB / Octave Crossover with Differential Circuitry. Fully Adjustable High Pass Crossover: 50Hz - 250Hz. Selectable +6dB/+12dB Bass Equalizer. Mute and Delay Soft Start System. High Level Input with Smart Auto Turn-On. Double Sided Surface Mount (SMD) PCB Design Full IC-Controlled Protection Circuitry. 2 CH / 4 CH Input Mode Switch. RCA Preamp Line Output. ELNA Brand Audiophile Capacitors. 8 Volt Preamp Circuitry. Status Mode LED Indicator. 4 Gauge Lucite Encapsulated Power/Ground Terminals. 12 Gauge Lucite Encapsulated Speaker Terminals . Sensitivity: 100dB @ 1w / 1m. Damping Factor: &gt; 200 @ 100Hz. Dual 25 Amp Maxi Fuse. Dimensions: (W x H x L) 6.7 x 1.98 x 10.7 Rockville RMWK8 8AWG Guage Waterproof Marine/Boat Amplifier Wire Installation Kit. 25 Translucent, Twisted Pair, High Quality, Tinned-CCA Flexible PVC RCA Cable. 20 8 Gauge High Current, Low Impedance, Clear Flexible Power Cable with 3 Black Poly Woven Mesh to better resist chemicals in the battery compartment. 4 8 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. 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 RXA-F1 1600W Peak/800W RMS 4 Channel Car Stereo Amplifier (1) Rockville RWK42 4 Gauge 4 Chan Car Wire Kit with (2) RCA Cables Rockville RXA-F1 1600 Watt Peak/800w RMS 4 Channel Amplifier Car Stereo Amp 260 Watts (4 x 65 Watts) at 4 ohms and 1% THD+N 380 Watts (4 x 95 Watts) at 2 ohms &lt; 1% THD 2 x 200 Watts bridged @ 4 Ohms &lt; 1% THD 800 Watts (4 x 200 Watts RMS) @ 2 ohms 800 Watts (2 x 400 Watts RMS) @ 4 ohm Bridged 500 Watts (4 x 125 Watts RMS) @ 4 ohms <span class="a-text-bold">Peak Power</span>: 1600 Watts (2 x 800 @ 2 ohms or 1 x 1600 @ 4 Ohms) High-Speed MOSFET Power Supply Studio-Grade Bipolar Output Stage Transistors Fully Adjustable 12dB Bass Equalizer 2-Ohm Stable Stereo 4-Ohm Mono Bridgeable 3 Channel Mixed-Mono Capable Mute and Delay Soft Start System Full IC-Controlled Protection Circuitry 2 CH / 4 CH Input Mode Switch RCA Preamp Line Output ELNA Brand Audiophile Capacitors 8 Volt Preamp Circuitry Status Mode LED Indicator Minimum THD: &lt; 0.05% Frequency Response: 10Hz - 40KHz Fully Adjustable 12dB / Octave Crossover with Differential Circuitry CH3 &amp; CH4 Low Pass 50Hz - 3KHz CH3 &amp; CH4 High Pass 15Hz - 1KHz CH1 &amp; CH2 High Pass 50Hz - 300Hz, 500Hz - 3Khz (x10) Sensitivity: 100dB @ 1w / 1m Damping Factor: &gt; 200 @ 100Hz 60 Amp Maxi Fuse Dimensions: (W x H x L) 8.5 x 1.8 x 13 Rockville RWK42 4 Gauge 4 Channel Car Amplifier Wiring Installation Kit (2) 17 High Grade Twisted Pair of 100% Copper RCA Cable 17 4 Gauge Translucent Blue SuperFlex Power Cables 17 18 Gauge Blue Remote Cable 17 16 Gauge Clear Speaker Wire 3 4 Gauge Clear SuperFlex Ground Wire Gold Plated AGU Heat Resistant Fuse Holder 60 Amp AGU Gold Plated Fuse 7 Split Tube Loom Accessories Included: Wire Ties, Ring Terminals, Butt Connectors, Spades, and Grommets Soft abrasion proof insulating jacket allows for 100% improved flexibility PVC outer jacket can with-stand an extreme temperature range of -40 to 220 degrees F