Rockville RXA-F1 1600 Watt Peak/800w RMS 4 Channel Car Stereo Amplifier+Amp Kit 1600 Watt Peak/800w RMS 4 Channel Amplifier Car Stereo Amp. Peak Power: 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:  200 @ 100Hz. 60 Amp Maxi Fuse 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 This unit also features a high speed MOSFET power supply, studio-grade bipolar output stage transistors and ELNA brand audiophile capacitors. It has a fully adjustable 12dB/Octave cross over with differential circuitry. High Level inputs, also referred to as Speaker Level inputs, allow you to install the amplifier into your vehicle even if you do not have any preamp outputs available. (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&#034; x 1.8&#034; x 13&#034; 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