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4-Channel Amplifiers

240W RMS Class A/B 4-Channel Gladiator Series Amplifier
Free Ground Shipping within the 48 states
Gladiator Series 4-Channel Class A/B Car Amplifier • 4 ohms: 60 watts x 4 chan. • 2 ohms: 120 watts x 4 chan. • Bridged, 4 ohms: 240 watts x 2 chan.
$99.99
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  • 4.0
  (4 reviews)
True 800W RMS, Full Range Class D 4-Channel Amplifier (JAD-800.4)
Free Ground Shipping within the 48 states
Class D 4-Channel Amplifier • 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
$239.99
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  • 4.8
  (11 reviews)
400W RMS eXcelon Series 4-Channel Reference XR Stereo Bridgeable Car Power Amplifier (XR4004)
Free Ground Shipping within the 48 states
XR Series 4-Channel Class D Amplifier • 75W x 4 Chan. @ 4 ohms • 100W x 4 Chan. @ 2 ohms • 200W x 2 Chan. @ 4 ohms • 3-Way System Protection • 4/3/2/1 Channel Operation • 4 Gauge Power and Ground Inputs • Extremely Thin Design
$199.99
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1000W Max, 4-Channel Class A/B Zeus Series Car Amplifier
Free Ground Shipping within the 48 states
4-Channel Class A/B Zeus Series Car Amplifier • 4 ohms: 125 watts x 4 chan. • 2 ohms: 250 watts x 4 chan. • Pulse Width Modulated MOSFET Power Supply • CEA-2006 Compliant Amplifier
$129.99
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  • 4.7
  (3 reviews)
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 RMS 4-Channel Class D Prime Series Amplifier
Free Ground Shipping within the 48 states
Prime Series Full Range Class D 2-Channel Car 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
$159.99
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  • 3.9
  (8 reviews)
800W 4-Channel Full Range Digital XTX Series Car Amplifier
Free Ground Shipping within the 48 states
XTX Series 4-Channel Full Range Digital Car Amplifier • 800W Dynamic • 2-Way System Protection • Brushed Aluminum Alloy Convection Cooled Heatsink • Variable High/Low-Pass Filter • Selectable Bass Boost
$129.99
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  • 3.7
  (3 reviews)
300W Prime Series 4-Channel Amplifier
Free Ground Shipping within the 48 states
Prime Series 4-Channel Class A/B Car Amplifier • 50 Watts x 4 Chan. @ 4 Ohms • 75 Watts x 4 Chan. @ 2 Ohms • Selectable Bass Boost • 2-Way System Protection Circuitry • Extruded Aluminum Alloy Convection Heat Sink
$129.99
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  • 4.8
  (25 reviews)
2000W Max 4-Channel Class A/B Zeus Series Car Amplifier
Free Ground Shipping within the 48 states
4-Channel Class A/B Zeus Series Car Amplifier • 4 ohms: 250 watts x 4 chan. • 500 watts x 4 chan. • Bridged, 4 ohm: 1000 watts x 2 chan. • Pulse Width Modulated MOSFET power supply
$199.99
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  • 4.8
  (4 reviews)
2000 Max Class A/B 4-Channel Heritage Series Car Amplifier
Free Ground Shipping within the 48 states
Heritage Series Class AB 4-Channel Car Amplifier • 250W RMS x 4 Channels @ 4 ohms • 350W RMS x 4 Channels @ 2 ohms • Electronic Crossover Network • Power and Protect LED Indicators • 3-Way Protection System Circuitry
$89.99
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  • 4.3
  (7 reviews)
Power Series Compact 4-Channel Amplifier
Free Ground Shipping within the 48 states
Power Series 4-Channel Class AB Car Amplifier • 60W x 4 chan. @ 4 ohms • 100W x 4 chan. @ 2 ohms • 200W x 2 chan. @ 4 ohm • 400W x 1 chan. Max • MOSFET Power Supply • High-pass and low-pass crossover • Audiophile grade speaker connections
$249.99
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  • 4.8
  (23 reviews)
400W RMS KX Series 4-Channel Class D-IC Stereo Bridgeable Car Power Amplifier (KX4004)
Free Ground Shipping within the 48 states
KX Series 4-Channel Class D-IC Car Amplifier • 50W x 4 Chan. @ 4 ohms • 100W x 4 Chan. @ 2 ohms • Bridged: 200W x 2 Chan. @ 4 ohms • 3-Way System Protection • Single Channel Operation • 4 Gauge Power and Ground Inputs • Stylish Magnetic Panel Covers Tuning Options for Clean Install
$279.95
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1400W Max Mean Machine Series 4-Channel Car Audio Amplifier
Free Ground Shipping within the 48 states
Mean Machine Series 4-Channel Class A/B Car Amplifier • 1400 Watts Max • 250 Watts x 4 Chan. @ 2 Ohms • 4-Way System Protection • Selectable Highpass/Lowpass Filters
$94.95
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  • 5.0
  (5 reviews)
1600W Max Nano Block Series 4-Channel Amplifier
Free Ground Shipping within the 48 states
Massive Audio NX4 Nano Block Series 4-Channel Car Amplifier • 1600W Max • MOSFET Power Supply • LED Power/Protect Indicators • Ultimate Mounting Flexibility • Mill Spec Double Sided PCB with SMD Parts
$165.00
Shipping: FREE
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  • 4.5
  (10 reviews)
1000W Max Mean Machine Series 4-Channel Car Audio Amplifier
Free Ground Shipping within the 48 states
Mean Machine Series 4-Channel Class A/B Car Amplifier • 1000 Watts Max • 250 Watts x 4 Chan. @ 2 Ohms • 4-Way System Protection • Selectable Highpass/Lowpass Filters
$92.87
Shipping: FREE
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  • 5.0
  (2 reviews)
Power Series Compact 4-Channel Amplifier
Free Ground Shipping within the 48 states
Power Series 4-Channel Class AB Car Amplifier • 100W x 4 chan. @ 4 ohms • 150W x 4 chan. @ 2 ohms • 300W x 2 chan. @ 4 ohms • 600W x 4 chan. Max • NOMAD protection circuitry: thermal, overload or short protection • MOSFET power supply
$379.00
Shipping: FREE
To the US 48 • other rates
  • 5.0
  (14 reviews)
1600W Max, 4-Channel Class A/B BAMF Series Amplifier
Free Ground Shipping within the 48 states
1600W Max 4-Channel BAMF Series Class AB Amplifier • 150W x 4 Chan. @ 4Ohms • 180W x 4 Chan. @ 2Ohms • 1600W Max • MOSFET power supply • Full Selectable Crossover • Tri-mode capable • Heavy duty aluminum alloy heatsink
$125.85
Shipping: FREE
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  • 3.6
  (17 reviews)
1000W RMS, 4-Channel Class AD Power Series Constant Power Amplifier
Free Ground Shipping within the 48 states
Power Series 4-Channel Class A/D Car Amplifier • 1000W RMS • 250W x 1-Chan @ 1 Ohm • NOMAD Real Time Computer Protection • 50-500 Hz LP/AP/HP Crossovers • Constant Power
$599.95
Shipping: FREE
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  • 5.0
  (5 reviews)
468W Max, Reference Series Class AB 4-Channel Amplifier (REF475A)
Free Ground Shipping within the 48 states
Reference Series Class AB 4-Channel Amplifier • 75W x 4 chan. @ 4 ohms • 90W x 4 chan. @ 2 ohms • 117W x 4 chan. Max • MOSFET power supply • Gold-plated preamp RCA outputs
$183.53
Shipping: FREE
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  • 4.5
  (19 reviews)
600W Max 4-Channel Marine XC Series Power Amplifier
Free Ground Shipping within the 48 states
2-Channel Marine XC Series Power Amplifier • 4 ohms: 85 watts x 4 chan. • 2 ohms: 125 watts x 4 chan. • Bridged, 4 ohms: 250 watts x 4 chan. • Conformally Coated PC Board • Marine Certified
$249.95
Shipping: FREE
To the US 48 • other rates
  • 5.0
  (1 review)
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.