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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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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

IN STOCK

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

IN STOCK

900W 4-Channel PZX Powerzone Series Class AB Car Amplifier

• 115 Watts Max x 4 @ 4 ohms
• 225 Watts Max x 4 @ 2 ohms
• 450 Watts Max x 2 @ 4 ohms, Bridged
• Total Peak Power: 900 Watts
• Speaker-level (high-level) inputs
• Variable Bass Boost: 0 to +9 dB bass boost at 45 Hz
• 4, 3 or 2 channel operation
• Selectable crossover modes: FULL / LPF / HPF

$69.99

IN STOCK

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

IN STOCK

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

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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600W XED Series 4-Channel Class AB Amplifier

• RMS Power: 45W x 4 @ 4 ohms , 70W x 4 @ 2 ohms , Bridged 150W x 2 @ 4 ohms
• Total Peak Power: 600W
• Variable Low-Pass Filter
• Pulse Width Modulated MOSFET Power Supply
• Heavy-Grade Aluminum Alloy Extruded Heatsink

Save 25% on an 8 Gauge Amp Kit with Purchase!

$99.99

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800W 4 Channel Torque Series Class A/B Car Amplifier

• RMS Power: 75W x 4 @ 4 ohms, 200W x 4 @ 2 ohms, 400W x 2 @ 4 ohms Bridged
• Total Peak Power: 800W
• Variable Low-Pass Filter (50-250 Hz, 24 dB/octave)
• Dimensions: 9.5"W x 10.19"L x 2.125"H

Save 25% on an 8 Gauge Amp Kit with Purchase!

$64.99

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1000W Atom Series Class D 4-Channel Ultra-Compact Car Amplifier

• RMS: 90W x 4 @ 4 ohms, 125W x 4 @ 2 ohms, 250W x 2 Bridged @ 4 ohms
• Total Peak Power: 1000W
• CEA-2006 Compliant/Preamp Outputs/LPF
• Variable 12dB High Pass, Low Pass, & Subsonic Crossovers

$104.99

IN STOCK

800W 4-Channel Picasso Series Class A/B Amplifier

• RMS Power: 125W x 4 @ 4 ohms, 200W x 4 @ 2 ohms, 400W x 2 @ 4 ohm, Bridged
• Total Peak Power: 800W
• Dash Mount Remote Bass Level Control Included
• Dimensions: 8.25"W x 19"L x 2"H

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

$119.99

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Only 2 Left!

1000W 4-Channel Reaper Series Class AB Amplifier

• RMS: 85W x 4 @ 4 ohms, 110W x 4 @ 2 ohms, Bridged 220W x 2 @ 4 ohm
• Total Peak Power: 1000W
•Military Grade PCB w/ PWM MOSFET Power Supply
• 3-way protection circuitry (thermal, overload, and speaker short protection)

$66.99

IN STOCK

900W 4-Channel Gothic Series Class AB Car Amplifier

• 4 ohms: 75 watts x 4-Chan.
• 2 ohms: 95 watts x 4-Chan.
• Bridged, 4 ohms: 190 watts x 2 chan.
• Max power output: 900 watts

Save 25% on an 8 Gauge Amp Kit with Purchase!

$79.99

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Only 1 Left!

1000W 4-Channel Vibe Series Class AB Car Amplifier w/ Remote Bass Knob (Vibe 412N)

• 125 watts x 4-Chan. @ 4 ohms
• 200 watts x 4-Chan. @ 2 ohms
• 1000W Max
• MOSFET Power Supply
• Soft Start Turn-on

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

$94.99

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Only 1 Left!

900W HED Series 4-Channel Class AB Car Amplifier

• RMS Power: 65W x 4 @ 4 ohms , 90W x 4 @ 2 ohms
• Total Peak Power: 900W
• Variable Low-Pass Filter
• Pulse Width Modulated MOSFET Power Supply
• Heavy-Grade Aluminum Alloy Extruded Heatsink

25% Off of XKIT84 OFC Amplifier Install Kit with Purchase!

$139.99

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Only 2 Left!

1000W Max 4 channel Stealth Series Marine Grade Class D Amplifier

• 90 Watts x 4 @ 4 ohms
• 125 Watts x 4 @ 2 ohms 250 Watts x 2 @ 4 ohms, Bridged
• Total Peak Power: 1000 Watts
• MOSFET Power Supply w/ Audiophile Grade IRTM Transistors
• Military Grade SMT PCB Maintains Dynamic Performance
• Hybrid Aluminum Alloy Heatsink for Optimum Dissipation

Get 20% off an NVX Universal Remote Level Control!

$119.99

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Only 3 Left!

650W Class D Full Range 4ch Amplifier

• 140W x 4-Chan. @ 4 ohms
• 250W x 4-Chan. @ 2 ohms
• 500W x 2 Chan. @ 4 ohms
• 3-Way System Protection
• 4/3/2/1 Channel Operation
• 8 Gauge Power and Ground Inputs
• Surface Mount Technology (SMT)

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

$144.99

IN STOCK

400W Class AB 4-Channel Thunder Series Car Amplifier

• 75W x 4-Chan. @ 4 ohms
• 100W x 4-Chan. @ 2 ohms
• 400W x 2 Chan. MAX
• 3-Way System Protection
• 4/3/2/1 Channel Operation
• 8 Gauge Power and Ground Inputs
• Vibration and Extruded Aluminum Heat Sink for Effective Heat Dissipation

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10% Rewards, Extended Warranty and more!

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

$199.95

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Only 3 Left!

600W 4 Channel Digital Compact Series Class D Car Amplifier (Made in Korea)

• RMS: 100W x 4 @ 4 ohms, 150W x 4 @ 2 ohms, 300W x 2 @ 4 ohm, Bridged
• Total Peak Power: 600W + 800W
• Pulse Width Modulated MOSFET Power Supply
• Variable Bass Boost
• 4-Way Protection Circuitry
• Dimensions: 4.7"W x 9"L x 1.6"H

$114.99

IN STOCK

Only 1 Left!

List price $519.89: Power Acoustik R4-1000 1000W 4-Channel Class AB Amplifier + Infinity 6030cs & 6032cf Reference Series Speaker System

• RMS: 85W x 4 @ 4 ohms, 110W x 4 @ 2 ohms
• 1" Edge-Driven Textile Dome Tweeter
• Injection Molded Polypropylene Cone
•Nominal Impedance: 2 ohms
• Sensitivity: 93dB
•Military Grade PCB w/ PWM MOSFET Power Supply
• 3-way protection circuitry (thermal, overload, and speaker short protection)

$224.94

IN STOCK

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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.