Features:

Hifonics Zeus ZRX616.4 600 Watt RMS 4 Channel Class AB Car Amplifier
Power Output: 150 Watts x 4 Channels @ 2 ohms
Power Output: 75 Watts x 4 Channels @ 4 ohms
Power Output Bridged: 300 Watts x 2 Channels @ 4 ohms
Illuminated Hifonics badge
Old School Hifonics Heatsink for Superior Heat Dissipation
Military Grade PCB
SPC - Simpatico Coil Design
HSMD - Hifonics Surface Mount Design
PWM MOSFET Power Supply for Maximum Current Levels
Diagnostic Indicators
DC, Short Circuit, Thermal and Overload Protection
Low Level RCA Inputs and Outputs
Frequency Response: 10Hz-45KHz
Signal to Noise Ratio: >90dB
RCA Input
Fuse: 25A x 3
Bass Boost: 0-12 dB
Variable hi-pass filter (60-1.2 KHz)
Variable low-pass filter (30-250 Hz)
Dimensions: 12.6"L x 2.4"W x 10"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

• 600 Watt RMS 4 Channel Class AB Car Amplifier. Power Output: 150 Watts x 4 Channels @ 2 ohms. Power Output: 75 Watts x 4 Channels @ 4 ohms. Power Output Bridged: 300 Watts x 2 Channels @ 4 ohms . Illuminated Hifonics badge. Old School Hifonics Heatsink for Superior Heat Dissipation. Military Grade PCB. SPC - Simpatico Coil Design. HSMD - Hifonics Surface Mount Design.
• PWM MOSFET Power Supply for Maximum Current Levels. Diagnostic Indicators. DC, Short Circuit, Thermal and Overload Protection. Low Level RCA Inputs and Outputs. Frequency Response: 10Hz-45KHz. Signal to Noise Ratio: >90dB. RCA Input. Fuse: 25A x 3. Bass Boost: 0-12 dB. Variable hi-pass filter (60-1.2 KHz). Variable low-pass filter (30-250 Hz).
• Dimensions: 12.6"L x 2.4"W x 10"H.
• 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.

600 Watt RMS 4 Channel Class AB Car Amplifier. Power Output: 150 Watts x 4 Channels @ 2 ohms. Power Output: 75 Watts x 4 Channels @ 4 ohms. Power Output Bridged: 300 Watts x 2 Channels @ 4 ohms . Illuminated Hifonics badge. Old School Hifonics Heatsink for Superior Heat Dissipation. Military Grade PCB. SPC - Simpatico Coil Design. HSMD - Hifonics Surface Mount Design.Hifonics