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Items per page: 20 50 100

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
Shipping: FREE
To the US 48 • other rates
  • 4.0
  (4 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
Shipping: FREE
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720W Max 4-Channel Performance Series Amplifier
Free Ground Shipping within the 48 states
4-Channel Class AB Car Amplifier • 60W x 4 chan. @ 4 ohms • 90W x 4 chan. @ 2 ohms • 180W x 2 chan. @ 4 ohms • 720W Max • Built-in cooling fan • Short circuit, DC offset, overload, and thermal protection circuitry
$119.99
Shipping: FREE
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  • 4.5
  (36 reviews)
300W RMS 4-Channel Class D Punch Boosted Rail Amplifier
Free Ground Shipping within the 48 states
Punch Series BR Full Range 4-Channel Car Amplifier • 75W x 4 chan. @ 4 ohms • Ultra Compact Chassis Design • Variable DC Offset Sensitivity • NOMAD Circuitry Protection Technology • CEA-2006 Compliant
$149.95
Shipping: FREE
To the US 48 • other rates
  • 3.9
  (12 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
Shipping: FREE
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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
Shipping: FREE
To the US 48 • other rates
  • 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
Shipping: FREE
To the US 48 • other rates
  • 4.8
  (25 reviews)
500W 4-Channel Stereo Bridgeable Power Amplifier w/ LPF and HPF
Free Ground Shipping within the 48 states
4-Channel Sport Series Car Amplifier • Class AB • 40W x 4 Chan. @ 4 ohm • 60W x 4 Chan. @ 2 ohm • High-Level Speaker Input • Heavy Duty Aluminum Heatsink • Low-Pass and High-Pass • CEA-2006 Compliant
$104.99
Shipping: FREE
To the US 48 • other rates
  • 5.0
  (2 reviews)
500W RMS VEGA Series 4-Channel Class AB Car Amplifier
Free Ground Shipping within the 48 states
VEGA Series 4-Channel Class AB Car Amplifier • 75W x 4 Chan. @ 4 ohms • 125W x 4 Chan. @ 2 ohms • 250W x 2 Chan. @ 4 ohms Bridged • Vega Bass Boost • Hi/Low Level Inputs • Variable Hi/Low-Pass Filters • Differential Balanced Inputs
$109.99
Shipping: FREE
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  • 5.0
  (1 review)
760W Max 4-Channel GM Series Car Amplifier w/ High-Level Speaker Inputs
Free Ground Shipping within the 48 states
GM Series • Bridgeable 4-Channel • Class AB Amplifier • 60 Watts RMS x4 Channel @ 4 ohms • 85 Watts RMS x 4 Channel @ 2 ohms • Speaker Level Inputs • LPF/HPF Crossovers • Gain Caution Feature • H Shaped Chassis • CEA-2006 Compliant Amplifier
$129.95
Shipping: FREE
To the US 48 • other rates
  • 4.8
  (4 reviews)
1000W Max 4-Channel Class A/B Power One Series Car Amplifier
Free Ground Shipping within the 48 states
Power One Series 4-Channel Class A/B Car Amplifier • 1000W Max • 125W x 4-Chan @ 2 Ohm • SEPP Analog Amplifier • Variable Bass Boost • Speaker-Level Inputs • Preamp RCA Outputs • 3-Way System Protection Circuitry
$84.99
Shipping: FREE
To the US 48 • other rates
600W Max 4-Channel Class A/B Power One Series Car Amplifier
Free Ground Shipping within the 48 states
Power One Series 4-Channel Class A/B Car Amplifier • 600W Max • 75W x 4-Chan @ 2 Ohm • SEPP Analog Amplifier • Variable Bass Boost • Speaker-Level Inputs • Preamp RCA Outputs • 3-Way System Protection Circuitry
$74.99
Shipping: FREE
To the US 48 • other rates
  • 5.0
  (1 review)
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
Shipping: FREE
To the US 48 • other rates
  • 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
Shipping: FREE
To the US 48 • other rates
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
To the US 48 • other rates
  • 5.0
  (2 reviews)
440W RMS Class AB 4-Channel/Stereo Bridgeable Car Power Amplifier
Free Ground Shipping within the 48 states
REP Series 4-Channel Class AB Amplifier • 85W x 4 Chan. @ 4 ohms • 110W x 4 Chan. @ 2 ohms • 220W x 2 Chan. @ 4 ohms • 3-Way System Protection • 2/1 Channel Operation • 8 Gauge Power and Ground Inputs • Speaker Level Inputs
$79.99
Shipping: FREE
To the US 48 • other rates
1200W Max 4-Channel Gothic Series Car Amplifier
Free Ground Shipping within the 48 states
4-Channel Gothic Series Car Amplifier • 4 ohms: 100 watts x 4 chan. • 2 ohms: 125 watts x 4 chan. • Bridged, 4 ohms: 250 watts x 2 chan. • Max power output: 1200 watts
$99.99
Shipping: FREE
To the US 48 • other rates
320W RMS 4-Channel Brutus Series Class AB Bridgeable Power Amplifier (BRX3204)
Free Ground Shipping within the 48 states
Brutus Series 4-Channel Super AB Class Car Amplifier • 40W x 4 Chan. @ 4 ohms • 80W x 4 Chan. @ 2 ohms • 160W x 2 Chan. @ 4 ohms • 3-Way System Protection • 4/3/2/1 Channel Operation • 8 Gauge Power and Ground Inputs • Ultra-Fi MOSFETS Circuit for Smooth Sound Quality
$129.99
Shipping: FREE
To the US 48 • other rates
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
To the US 48 • other rates
  • 4.5
  (19 reviews)
1200W Max CRYPT Series 4-Channel Amplifier
Free Ground Shipping within the 48 states
CRYPT Series 4-Channel Car Amplifier • 100W x 4 chan @ 4 ohm • 125W x 4 chan @ 2 ohm • MOSFET PSU Transistors • LED Indicators • Selectable Bass Boost • Aluminum Alloy Heatsink • 3-Way System Protection Circuitry
$89.95
Shipping: FREE
To the US 48 • other rates
  • 4.8
  (5 reviews)
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.