Package: MB Quart XA1-800.4 800 Watt RMS X-Line Series 4 Channel Car Stereo Amplifier With Power/Protect Indicators + Rockville RWK42 4 Gauge 4 Channel Complete Wire Kit With RCA Cables MB Quart XA1-800.4 800 Watt RMS X-Line Series 4 Channel Car Stereo Amplifier. Power @ 4-OHMS: 4 channels x 100 Watts. Power @ 2-OHMS: 4 channels x 200 Watts. Bridged Power @ 4-OHMs: 2 channels x 400 Watts. Elaborate preamplifier with extended control Q-Stasis preamp stage with wide input range. Class SQ A/B topology designed by Lukas Lowe. Class Q1 proprietary class D topology 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 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