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Find powerful 4 channel amps for name brand manufacturers such as Kicker, JVC, Pioneer and more. Four channel amplifiers allow you to have more installation options.
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4-Channel Amplifiers

800W RMS PA D Series Class-D 4-Channel Car Amplifier

• 125 Watts RMS x 4 @ 4 ohms
• 200 Watts RMS x 4 @ 2 ohms
• 400 Watts RMS x 2 @ 4 ohms, Bridged
• 4, 3 and 2 Channel Operation
• CEA-2006 Compliant
• Frequency Response: 20 - 20,000 Hz
• Selectable crossover modes: LPF / FULL / HPF , with 10x Multiplier
• Dimensions: 6-3/4" W x 10-15/16" L x 1-13/16" H

Save 25% on a 4 Gauge Amp Kit with Purchase!

$229.99

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1000W Max 4-Channel Class A/B PDX Series Car Amplifier

Power One Series 4-Channel Class A/B Car Amplifier • 1000W Max • 500W x 2-Chan @ 1 Ohm • SEPP Analog Amplifier • Variable Bass Boost • Speaker-Level Inputs • Preamp RCA Outputs • 3-Way System Protection Circuitry

50% Off of XKIT84 OFC Amplifier Install Kit with Purchase!

$59.99

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1200W 4 Channel Hercules Series Amplifier

• 75 Watts RMS x 4 @ 4 ohms
• 150 Watts RMS x 4 @ 2 ohms
• 600 Watts RMS x 2 @ Bridged
• Twin Turbo Coil PS Pulse Width Modulated MOSFET power supply
• Ultra-Fi output devices

Save 50% on an OFC Amplifier Installation Kit with Purchase!

$169.99

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800W RMS 4-Channel Onyx Series Class SQ Full-Range Bridgeable Power Amplifier

• 100 Watts RMS x 4 @ 4 ohms
• 200 Watts RMS x 4 @ 2 ohms
• 400 Watts RMS x 2 @ 4 ohm, Bridged
• Total Peak Power: 1600 Watts
• 2-Ohm Stable operation, bridgeable to 4-ohms
• Variable Bass Boost (Bass EQ, Ch 3 & 4 only): 0 - +9 dB at 45Hz
• 16 AWG speaker output connections
• Dimensions: 14.17" L x 9.45" W x 2.23" H

40% Off on 4-Channel RCA Cables w/ purchase!

$89.99

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True 800W RMS, Full Range Class D 4-Channel Amplifier (JAD-800.4)

• 4 ohms: 125 watts x 4-Chan.
• 2 ohms: 200 watts x 4-Chan.
• Bridged, 4 ohms: 400 x 2 chan.
• Pulse Width Modulated MOSFET Power Supply
• 4/3/2 Channel Operation

FREE Sound Dampening Kit with Your NVX Amplifier Purchase!

$199.99

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1500W Max (600W RMS) Full Range Class-AB 4-Channel Amplifier

• 1 Pair of Preamp Outputs
• Variable low-pass filter (50-250 Hz, 12 dB/octave)
• Variable high-pass filter (50-250 Hz, 12 dB/octave)
• Dimensions: 311.15mmW x 203.20mmD x 57.15mmH

$149.99

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300 Watts Punch Series Boosted Rail Compact 4-Channel Amplifier

• RMS 75 x 1 @ 4 ohms
• Features Rockford Fosgate's Class-BR Topology
• CEA-2006 Compliant
• Ultra Compact Chassis
• Boosted Rail Design
• Dimensions: 6.75"L x 4.25"W x 1.53"H

Save 20% on an RF Amp Kit and get an Extended Warranty!

$149.99

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1000W Max 4-Channel ATA Series Class-AB Car Amplifier

• Max Power: 125W x 4 @ 4 ohms, 250W x 4 @ 2 ohms
• Total Peak Power: 1000W
• Pulse Width Modulated MOSFET power supply
• LED power (green) and protect (red) indicators
• 4/3/2 channel operation
• Preamp RCA outputs to daisy chain multiple amps

Save 25% on an 4 Gauge Amp Kit with Purchase!

$64.99

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400W 4-Channel Class D Prime Series Full Range Amplifier

• 75W x 4-Chan. @ 4 ohms
• 100W x 4-Chan. @ 2 ohms
• 200W x 2 Chan. @ 4 ohms Bridged
• Variable Bass Boost
• Variable High-Pass Crossover
• CEA-2006 Compliant

40% Off on 4-Channel RCA Cables w/ purchase!

$164.99

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OA800.4 800W RMS 4-Channel Full-Range Power Amplifier + ZK1-169 6 x 9" Z-Line Series 2-Way Coaxial Car Speakers

• 4 ohms: 100 watts x 4 chan.
• 1" (30mm) ceramic Coated Titanium Dome Tweeter
• Mica-filled PP Cone Mated to UV Butyl Surround
• 12bd/Octave Crossovers
• 4 Ohms Impedance
• Sensitivity: 89dB
• Variable Bass Boost (Bass EQ, Ch 3 & 4 only): 0 - +9 dB at 45Hz
• 16 AWG speaker output connections
• Dimensions: 14.17" L x 9.45" W x 2.23" H

$371.97

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Only 2 Left!

600W Peak (300W RMS) CX Series 4-Channel Bridgeable Class D Car Amplifier

• 75 Watts RMS x 4 @ 2 ohms
• Total Peak Power: 600 Watts
• Preamp RCA outputs to daisy chain multiple amps
• Variable Low/High-Pass Crossover: 50 - 200Hz 12dB/octave
• Variable Bass Boost: 0 to +12 dB bass boost at 40 Hz
• Dimensions: 7-3/16"W x 12-7/16"L x 2-3/8"H

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10% Rewards, Extended Warranty and more!

$199.95

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1000W 4-Channel Power One Series Class AB Car Amplifier

• 1000W Max
• 250W x 4-Chan @ 2 Ohm, 125W x 4-Chan @ 4 Ohm
• SEPP Analog Amplifier
• Variable Bass Boost
• Speaker-Level Inputs
• Preamp RCA Outputs
• 3-Way System Protection Circuitry

Save 25% on a 4 Gauge Amp Kit with Purchase!

$71.97

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840W Max, FX Series 4-Channel Amplifier

• 840W Max, FX Series 4-Channel Amplifier • 4 ohms: 80 watts x 4 chan • 2 ohms: 95 watts x 4 chan • Bridged, @ 4 ohms: 190 watts x 2 chan • S/N Ratio: 98dB • THD: 0.02%

Save 35% on a 4 Gauge Amp Kit with Purchase!

$63.99

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List price $709.89: Hifonics BRX316.4 4 Channel Brutus Series Class AB Amplifier + 6x9" 3-Way Grand Touring GTO Series Coaxial Speakers

• 80W x 4 @ 2 ohms
• Mylar / Titanium Hybrid Dome Tweeter
• Mounting Depth: 3" • Plus One Woofer Cone
• 2 Ohms Impedance
• Sensitivity: 94dB
• Total Peak Power: 320W
• Variable High and Low Pass Filters
• Dimensions: 9.8" W x 11" L x 2.4" H

$259.95

IN STOCK

2600W 4-Channel Phantom Series Full Range Class AB Amplifier

• RMS: 325W x 4 @ 4 ohms
• Total Peak Power: 2600W
• Gold-plated RCA low level and high level inputs
• 3-way protection circuitry (thermal, overload, and speaker short protection)
• Wired remote bass level control included
• 10.31" W x 17.00" L x 2.25" H

Save 25% on a 4 Gauge Amp Kit with Purchase!

$117.97

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1200W 4-Channel Powerzone Series Class A/B Car Amplifier

• 150 Watts x 4 @ 4 ohms
• 300 Watts x 4 @ 2 ohms
• 6000 Watts x 2 @ 4 ohms, Bridged
• Speaker-level (high-level) inputs
• 4, 3 or 2 channel operation
• Signal to Noise Ration: >90 dB
• Variable Bass Boost: 0 to +9 dB bass boost at 45 Hz
• Dimensions: 9.29" L x 11.02" W x 2.17" H

50% off an 8 Gauge Amp Kit with Select Amplifiers Purchase!

$80.97

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320 Watt 4 Channel Brutus Series Class AB Amplifier

• RMS Power: 40W x 4 @ 4 ohms, 80W x 4 @ 2 ohms
• Total Peak Power: 320W
• Variable High and Low Pass Filters
• Dimensions: 9.8" W x 11" L x 2.4" H

Save 25% on a 4 Gauge Amp Kit with Purchase!

$119.97

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1800W 4 Channel Phantom Series Full Range Class AB Amplifier

• RMS: 225W x 4 @ 4 ohms
• Total Peak Power: 1800W
• Gold-plated RCA low level and high level inputs
• 3-way protection circuitry (thermal, overload, and speaker short protection)
• Wired remote bass level control included
• 10.31" W x 13.50" L x 2.25" H

Save 25% on a 4 Gauge Amp Kit with Purchase!

$97.97

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1500W 4-Channel Street Machine (SMA) Series Class AB Amplifier

• Max: 185W x 4 @ 4 ohms, 375W x 4 @ 2 ohms , Bridged 750W x 2 @ 4 ohms
• Total Peak Power: 1500W
• Pulse Width Modulated MOSFET power supply
• Preamp RCA outputs to daisy chain multiple amps
• High-density split-dome convection heat-sink for extreme heat dissipation

Save 50% on a 4 Gauge Amp Kit with Purchase!

$72.95

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Only 3 Left!

520W 4-Channel iON Series Class D Full-Range Digital Stereo Bridgeable Amplifier

• 100W x 4-Chan. @ 4 ohms
• 130W x 4-Chan. @ 2 ohms
• 260W x 2 Chan. @ 4 ohms
• 3-Way System Protection
• 4/3/2/1 Channel Operation
• 4 Gauge Power and Ground Inputs
• Surface Mount Technology (SMT)

Save 25% on a 4 Gauge Amp Kit with Purchase!

$109.99

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Related Categories

Amplifier Wiring Kits
Get all the cables, wires, and hardware you need to install your new car audio amplifier with one of these power amp kits. Amplifier wiring kits come with your basic power and ground cables, as well as other necessary wires. Select complete amplifier kits will include speaker wire, RCA interconnect cables, and more! To make sure you get the kit that is best designed for your car audio system, scroll down to the bottom of this page for the buying guide.
Capacitors
Car audio capacitors are a great addition to any aftermarket audio system that is in need of a little extra power. Capacitors store a temporary electrical charge that can be released during periods of extra power strain. If a vehicle has dimming headlights when music is played, a capacitor could solve that problem.
Sound Processors
For those who want the most out their car audio system, a quality sound processor is a must. After some slight adjustments, your systems will sound like it has been professionally tuned and optimized. Tune your system to perfection with these crossovers, equalizers, and bass drivers. Click here to learn more about digital sound processors and to find out which type would be best for your car audio system.

4-Channel Amplifiers Information

A 4-channel amplifier is the best way to power a complete set of new car speakers. These amplifiers are designed to power four door speakers, although the right & left channels can usually be bridged to offer a wide range of wiring options. Commonly, the rear channels will be bridged to power a small subwoofer while the front channels are used for the front speakers. Some audiophile installations use these amplifiers to bi-amp a pair of component speakers – in these setups, each tweeter and midwoofer is powered from their own channel. Four channel amplifiers mostly utilize class A/B circuitry for the best possible sound quality, but the last few years have seen a huge rise in the popularity of full-range class D amps. These amplifiers are prized for their compact chassis, and advances in technology have made them sound almost indistinguishable from their A/B counterparts. 4-Channel amplifiers also frequently feature preamp outputs or signal pass-thru, allowing you to provide signal to a subwoofer amp without running another RCA cable to your head unit.