Package: (2) Pairs of Kicker 40CSS68 6"x8" 2-Way 4-Ohm Car Audio Component Speakers Totaling 900 Watt + Rockville RXA-F1 1600 Watt Peak / 800 Watt RMS 4 Channel Car Amplifier + Rockville RWK42 4 Gauge 4 Chan Car Amp Wire Kit with RCA Cables 6x8 225 Watt 4-Ohm Car Audio Component Speakers. 450 Watts Peak Power TotalPer Pair / 150 Watts RMS Total Power Per Pair. Reliable, remarkable-sounding coaxial for easy drop-in, factory upgrades. Reduced-depth baskets allow fitment into virtually any vehicle application. Zero tweeter protrusion for no interference with factorygrilles. EVC (Extended Voice Coils) and a heavy-duty motor structure provide the foundation for signature sound. 1600 Watt Peak/800w RMS 4 Channel Amplifier Car Stereo Amp. 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. Dimensions: (W x H x L) 8.5 x 1.8 x 13 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