Rockville RXA-F2 2400 Watt Peak/1200w RMS 4 Channel Car Stereo Amplifier+Amp Kit 2400 Watt Peak / 1200w RMS 4 Channel Car Stereo Amplifier. CEA Compliant Power Ratings: 400 Watts (4 x 100 Watts) at 4 ohms and 1% THD+N, 600 Watts (4 x 150 Watts) at 2 ohms &lt; 1% THD. 600 Watts (2 x 300 Watts) bridged @ 4 Ohms &lt; 1% THD, RMS Power Ratings 1200 Watts (4 x 300 Watts RMS) @ 2 ohms. 1200 Watts (2 x 600 Watts RMS) @ 4 ohm Bridged, 800 Watts (4 x 200 Watts RMS) @ 4 ohms. Peak Power: 2400 Watts (2 x 1200 @ 2 ohms or 1 x 2400 @ 4 Ohms), High-Speed MOSFET Power Supply. Studio-Grade Bipolar Output Stage Transistors Crossover Band-Pass Control. Fully Adjustable 12dB Bass Equalizer, 2-Ohm Stable Stereo. 4-Ohm Mono Bridgeable, 3 Channel Mixed-Mono Capable. Studio-Grade Bipolar Output Stage Transistors, 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. High Level Input with Smart Auto Turn-On Frequency Response: 10Hz - 40KHz, Fully Adjustable 12dB / Octave Crossover with Differential Circuitry. CH3 & CH4 Low Pass 50Hz - 3KHz, CH3 & CH4 High Pass 15Hz - 1KHz CH1 & CH2 High Pass 50Hz - 300Hz, 500Hz - 3Khz (x10). Sensitivity: 100dB @ 1w / 1m, Damping Factor: &gt; 200 @ 100Hz. Dual 40 Amp Maxi Fuse, Dimensions: (W x H x L) 8.5 x 1.8 x 16.1 and 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 (1) Rockville RXA-F2 2400W Peak/1200W RMS 4 Channel Car Stereo Amplifier (1) Rockville RWK42 4 Gauge 4 Chan Car Wire Kit with (2) RCA Cables Rockville RXA-F2 2400 Watt Peak / 1200w RMS 4 Channel Car Stereo Amplifier 400 Watts (4 x 100 Watts) at 4 ohms and 1% THD+N 600 Watts (4 x 150 Watts) at 2 ohms &lt; 1% THD 600 Watts (2 x 300 Watts) bridged @ 4 Ohms &lt; 1% THD 1200 Watts (4 x 300 Watts RMS) @ 2 ohms 1200 Watts (2 x 600 Watts RMS) @ 4 ohm Bridged 800 Watts (4 x 200 Watts RMS) @ 4 ohms <span class="a-text-bold">Peak Power</span>: 2400 Watts (2 x 1200 @ 2 ohms or 1 x 2400 @ 4 Ohms) High-Speed MOSFET Power Supply Studio-Grade Bipolar Output Stage Transistors Crossover Band-Pass Control Fully Adjustable 12dB Bass Equalizer 2-Ohm Stable Stereo 4-Ohm Mono Bridgeable 3 Channel Mixed-Mono Capable Studio-Grade Bipolar Output Stage Transistors 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 High Level Input with Smart Auto Turn-On 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 Dual 40 Amp Maxi Fuse Dimensions: (W x H x L) 8.5 x 1.8 x 16.1 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