Crunch PX-1000.4 1000 Watt 4 Ch. Powerful Car Audio Amplifier+Amp Wire Kit PX Crunch 1000 Watt 4-Channel Class A/B Car Amplifier. MAX Power Rating (14.4V): 4 ohms: 125 watts x 4 chan. 2 ohms: 250 watts x 4 chan. Bridged, 4 ohms: 500 watts x 2 chan. RMS Power Rating: 4 ohms: 75 watts x 4 chan. 2 ohms: 125 watts x 4 chan. Bridged, 4 ohms: 250 watts x 2 chan. SEPP (Single Ended Push-Pull) output technology. Pulse Width Modulated power supply. LED power (green) and protect (red) indicators. Slow un-mute soft start turn-on. 4, 3 or 2 channel operation. Speaker-level inputs. Preamp RCA outputs to daisy chain multiple amps. 3-Way System Protection circuitry (thermal, overload, and speaker short protection) Variable high-pass filter 120 - 3,000 Hz, 12 dB/octave. Variable low-pass filter 50 - 250 Hz, 12 dB/octave. Variable Bass Boost: 0 - +12 dB bass boost at 45 Hz. Damping factor: &gt;180. Signal-to-nose ratio: &gt;98dB. Frequency response: 20 - 20,000 Hz. Fuse rating: 30A x 2. Rockville RWK82 8 Gauge 4 Channel Car Amplifier Wiring Installation Kit. (2) 17 High Grade Twisted Pair of 100% Copper RCA Cable. 17 8 Gauge Translucent Blue SuperFlex Power Cables. 17 18 Gauge Blue Remote Cable. 17 16 Gauge Clear Speaker Wire. 3 8 Gauge 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.