New Hifonics Brutus BRX616.4 600W RMS 4-Channel Car Amplifier+Amp Kit+Capacitor Hifonics Brutus BRX616.4 600 Watt RMS 4 Channel Car Amplifier. Power Output: 160 Watts x 4 Channels @ 2 ohms. Power Output: 80 Watts x 4 Channels @ 4 ohms. Bridged Power Output: 320 Watts x 2 Channels @ 4 ohms. Ultra-Fi MOSFETS Circuit maximizing power efficiency while improving sound quality. LED power (green) and protect (red) indicators. Built-in system diagnostics. Preamp RCA outputs to daisy chain multiple amps. Heavy duty aluminum alloy heat-sink with illuminated Hifonics logo. Lighted connectors and blue wash of light from the underside of the heatsink. DC, Short Circuit, Thermal and Overload Protection. Frequency Response: 10Hz-60KHz. Signal to Noise Ratio: &gt;90dB. Bass Boost 0-10dB. RCA Input. Fuse: External 30A x 2. THD: &lt;0.05%. Variable high-pass filter: 60Hz - 1.3KHz. Variable low-pass filter: 30-250 Hz. Dimensions: 14.7"L x 2.4"W x 9.8"H. 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. Rockville RXC2D 2 Farad Stiffening Power Capacitor . 2 Farad/12 Volt Stiffening Capacitor with 24 Volt Surge Capacity . Lucite Encapsulated Display and Logic Circuitry. Red LED Digital Voltage Display. Blue Led Flashing Charge and Discharge Metering. IC Controlled circuitry with negative polarity built-in protection. Dimensions: 13" long x 3.75" wide x 7" high . Includes Clear Lucite Unbreakable Mounting Brackets, hardware and charging resistor with instructions.