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4-Channel Amplifiers

900W RMS, Phantom Series Class D Full Range 4-Channel Amplifier (P 900.4)
Free Ground Shipping within the 48 states
Phantom Series Class D Full Range 4-Channel Car Amplifier • 450W RMS x 2 Channel @ 4 ohms Bridged • Tri-Mode Capable • 3-Way System Protection • Variable Low-Pass Crossover • Variable High-Pass Crossover • Band-Pass Crossovers • Input Source Selector
$189.99
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  • 5.0
  (10 reviews)
400W Max, 4-Channel Gothic Series Car Amplifier
Free Ground Shipping within the 48 states
4-Channel Gothic Series Car Amplifier • 4 ohms: 45 watts x 4 chan. • 2 ohms: 75 watts x 4 chan. • Max power output: 900 watts • MOSFET power supply • 4/3/2 Channel Operation
$59.99
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  • 4.7
  (3 reviews)
400W Max 4-Channel Chaos Exxtreme Series Amplifier (CX-350)
Free Ground Shipping within the 48 states
Chaos Exxtreme 4-Channel Class AB Car Amplifier • 50W x 4 chan. @ 4 ohms • 100W x 4 chan Max • Speaker-level inputs with soft turn-on • Thermal and short circuit protection circuitry
$49.99
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  • 4.4
  (16 reviews)
400W Max, 4-Channel Evolution Series Car Amplifier
Free Ground Shipping within the 48 states
Evolution Series 4-Channel Class AB Car Amplifier • 50W RMS x 4 Channels • MOSFET Power Supply • High/Low Level Inputs • Fixed High/Low Pass Filters • 3-Way System Protection Circuitry
$49.99
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  • 3.3
  (3 reviews)
400W Max, Pro Series 4-Channel Amplifier with Remote Level Control
Free Ground Shipping within the 48 states
Pro Series 4-Channel Car Amplifier • 400W Max • 100W x 4-Chan. @ 2 Ohms • 50W x 4-Chan. @ 4 Ohms • Soft Turn-On Circuit • Remote Turn-On/Off Circuit • Speaker-Level Inputs • LED Power And Protect Indicator
$49.99
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  • 4.4
  (14 reviews)
800W 4-Channel PowerOne Series Car Amplifier
Free Ground Shipping within the 48 states
Power One Series 2-Channel Class A/B Car Amplifier • 4 ohms: 200 watts x 4 chan. • 2 ohms: 400 watts x 4 chan.• Bridged, 4 ohms: 800 watts x 2 chan. • SEPP Class A/B Analog Amplifier
$94.99
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250W RMS 4-Channel Class AB Prime Series Amplifier
Free Ground Shipping within the 48 states
Prime Series Full Range Class AB 4-Channel Car Amplifier • 40W x 4 Chan. @ 4 ohms • 60W x 4 Chan. @ 2 ohms • 125W x 2 Chan. @ 4 ohms Bridged • Variable Bass Boost • Variable High-Pass Crossover • CEA-2006 Compliant • Soft Start Turn-On
$129.99
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360W RMS, 4-Channel Class A/B JX Series Full-Range Car Amplifier
Free Ground Shipping within the 48 states
JX Series 4-Channel Amplifier • Class AB • 70W x 4 Chan @ 4 ohm • 90W x 4 Chan @ 2 ohm • Preamp Outputs • High & Low Level Inputs • Adjustable Input Sensitivity • High & Low Pass Filter
$224.95
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  • 4.7
  (10 reviews)
320W RMS DTX Series Class AB 4-Channel Amplifier
Free Ground Shipping within the 48 states
DTX Series 4-Channel Class D Amplifier • 60W x 4 Chan. @ 4 ohms • 80W x 4 Chan. @ 2 ohms • 4-Way System Protection • 4/3/2/1 Channel Operation • 4 Gauge Power and Ground Inputs • Variable Bass Boost (0-12 dB)
$104.99
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640W 4-Channel Reference Series Bridgeable Power Amplifier (RA6404)
Free Ground Shipping within the 48 states
Reference Series 4-Channel Class SQ Amplifier • 80W x 4 Chan. @ 4 ohms • 160W x 4 Chan. @ 2 ohms • 320W x 2 Chan. @ 4 ohms • 3-Way System Protection • 4/3/2/1 Channel Operation • 4 Gauge Power and Ground Inputs • FLUID-FETS Circuit for Smooth Sound Quality
$149.99
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  • 5.0
  (1 review)
400W Max, 4-Channel Gorilla Series Car Amplifier
Free Ground Shipping within the 48 states
4-Channel Gorilla Series Car Amplifier • 4 ohms: 45 watts x 4 chan. • 2 ohms: 75 watts x 4 chan. • Bridged, 4 ohms: 150 watts x 2 chan. • Pulse Width Modulated MOSFET Power Supply
$63.99
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320W Max, Sedona Series 4-Channel Amplifier
Free Ground Shipping within the 48 states
Sedona Series 4-Channel Car Amp • 55W x 4-Chan. @ 4 Ohm • 80W x 4-Chan. @ 2 Ohm • MOSFET Power Supply • Variable Bass Boost • Brushed Aluminum Finish • Platinum 4 AWG Power Block
$99.99
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  • 5.0
  (1 review)
580W Max, Sedona Series 4-Channel Amplifier
Free Ground Shipping within the 48 states
Sedona Series 4-Channel Car Amp • 100W x 4-Chan. @ 4 Ohm • 145W x 4-Chan. @ 2 Ohm • MOSFET Power Supply • Variable Bass Boost • Brushed Aluminum Finish • Platinum 4 AWG Power Block • Tri Mode Capable
$109.99
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  • 3.7
  (3 reviews)
760W Max Sedona Series 4-Channel Amplifier
Free Ground Shipping within the 48 states
Sedona Series 4-Channel Class A/B Amplifier • 760W Max • 190W x 4-Chan @ 2 Ohms • 120W x 4-Chan @ 4 Ohms • IDI Intelligent Distress Indicator • Tri-Mode Capable • Soft Start Turn-On • Platinum-Plated Terminals
$149.99
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300W RMS 4-Channel Class AB Prime Series Amplifier
Free Ground Shipping within the 48 states
Prime Series Full Range Class AB 4-Channel Car Amplifier • 50W x 4 Chan. @ 4 ohms • 75W x 4 Chan. @ 2 ohms • 150W x 2 Chan. @ 4 ohms Bridged • Variable Bass Boost • Variable High-Pass Crossover • CEA-2006 Compliant • Soft Start Turn-On
$139.00
Shipping: FREE
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440W 4-Channel Reference MYKRO Series Hybrid Class D Full-Range Car Power Amplifier (RM4404)
Free Ground Shipping within the 48 states
Reference MYKRO Series 4-Channel Hybrid Class D Full-Range Car Amplifier • 75W x 4 Chan. @ 4 ohms • 110W x 4 Chan. @ 2 ohms • 220W x 2 Chan. @ 4 ohms • 4-Way System Protection • 4/3/2/1 Channel Operation • 4 Gauge Power and Ground Inputs • FLUID-FETS Circuit for Smooth Sound Quality
$184.99
Shipping: FREE
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400W, 4-Channel Class D XD Series Full-Range Car Amplifier
Free Ground Shipping within the 48 states
XD Series 4-Channel Class D Car Amplifier • 100W x 4-Chan @ 2 Ohms • NexD Ultra-High Speed Topology • Preamp RCA Outputs • Variable High/Low-Pass Filter • 3-Way System Protection Circuitry • Remote Bass Input
$359.95
Shipping: FREE
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  • 4.9
  (10 reviews)
640W RMS, Power Class Series 4-Channel Amplifier (PC 6404)
Free Ground Shipping within the 48 states
Power Class Series 4-Channel Class A/B Car Amplifier • 640W RMS • Large TO218 MOSFET Transistors • Triple Darlington Audio Output Stages • Close Tolerance Signal Path Components • Extra Low Current Drive Stage
$219.00
Shipping: FREE
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  • 4.0
  (3 reviews)
480W 4-Channel Reference Series Bridgeable Power Amplifier (RA4804)
Free Ground Shipping within the 48 states
Reference Series 4-Channel Class SQ Amplifier • 60W x 4 Chan. @ 4 ohms • 120W x 4 Chan. @ 2 ohms • 240W x 2 Chan. @ 4 ohms • 3-Way System Protection • 4/3/2/1 Channel Operation • 8 Gauge Power and Ground Inputs • FLUID-FETS Circuit for Smooth Sound Quality
$129.00
Shipping: FREE
To the US 48 • other rates
460W RMS, 4-Channel Class AB i Series Car Amplifier
Free Ground Shipping within the 48 states
4-Channel Class AB i Series Car Amplifier • 460W RMS • Pulse Width Modulated MOSFET Power Supply • LED Status Indicator • Fully Adjustable Bass EQ • 3-Way System Protection • Low Level Line Inputs • Aluminum Finned Heatsink
$269.99
Shipping: FREE
To the US 48 • other rates
Items per page: 20 50 100
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Related Categories

Amplifier Wiring Kits
Get all the cables, wires, and hardware you need to install your new car 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! Make sure to get the kit that is best designed for your car audio system.
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.

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.