KICKER Amplifier and Amp Kit Package of 2 Items - LX Series 850W RMS Class D Monoblock Amplifier and 4AWG Complete Wiring Kit Bundle of 2 Items: Kicker 51LX850.1 LX Series Class D Mono Amplifier Kicker 46CK4 C Series 4AWG Complete Amplifier Kit LX Series Class D Mono Premium Car Amplifier RMS Power Rating: 4 ohms: 300 watts x 1 chan 2 ohms: 500 watts x 1 chan 1 ohms: 850 watts x 1 chan Max power output: 1100 watts Sensitivity: 95dB Frequency response: 10-160 Hz Efficient Class-D amplifier Gain-match LEDs show you perfect gain setting Customize Appearance with Reversible Center Panel and 11 RGB LED Accent Colors FIT+™ Technology accepts up to 40V of input, with full differential inputs to eliminate noise Multiple turn-on modes plus robust protections for thermal, circuit, and voltage Smart Bass Remote Included KickEQ™+™ Parametric Bass Boost (0-6 dB bass boost, variable center 20-80Hz, variable bandwidth 1-5) Variable Low-pass filter (40-160 Hz, 24 dB/octave) Subsonic Filter (10-80Hz, 24 dB/octave) Dimensions: 8-7/16" W x 9-7/16" D x 2-3/8" H 4AWG C-Series Complete Amplifier Kit Top-quality, Hyper-Flex power, ground and turn-on High-performance K-Series speaker wire and interconnects in ultra-compact, easy-to-use design