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  2. Discontinued Car Audio & Electronics
  3. Discontinued Car Amplifiers
  4. Discontinued 4-Channel Amplifiers

Discontinued 4-Channel Amplifiers

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Number of Channels
Each channel on an amplifier will power one speaker using a positive and negative cable. There are various types of amplifiers, each designed to power a certain number of speakers. Monoblock amplifiers, also known as single channel, are designed to power one or more subwoofers. These amplifiers often have very high power ratings. On the other hand, multi-channel amplifiers power multiple speakers, usually at lower power ratings. 2-Channel and 4-Channel amplifiers can power car speakers or low powered subwoofers. Occasionally you might see a 5 or 6-channel amplifier that can power speakers and subwoofers at the same time. The most common setup is a monoblock amp to run subwoofers and a 4-channel amp to run door speakers. Check out our Knowledge Base for more information.
Amplifier Key Features
Amplifiers can offer a diverse array of features. If you select more than one feature, then you will view amplifiers that have ALL features selected. These include speaker-level inputs that facilitate seamless integration with factory audio systems, Bluetooth connectivity suitable for ATV/UTV or Classic vehicle setups, built-in DSPs that provide enhanced control over your audio signal, and a host of other functionalities to explore.
Amplifier Class

An amplifier increases the power of the signal being fed to it by taking energy from its power supply and matching the signal but increasing its amplitude. Amplifiers use many different methods for converting these electrical signals and have been categorized into classes.

Class A/B: Greater than 50% of the input signal is amplified while the other percentage is “off”. These amplifiers have a small amount of current flowing through the output transistors all the time which almost eliminates crossover distortion. Class A/B has great sound quality but is not as efficient as class D. These amps are most commonly used to drive speakers.

Class D: Also known as switching amplifiers, class D amps have output transistors that are completely turned “on” or “off”. This means that when the transistors are on, there is almost no voltage across them but when they are off there is significant voltage but no current flowing through it which makes these amplifiers very efficient at the cost of sound quality. These amps are most commonly used to drive subwoofers.

Other Classes: You may see classes such as GH, bD, X, FD, etc. by some manufactures. These amplifiers tend to be either class A/B, D or a hybrid of the two but with improvements to their designs that can make them more efficient or offer better sound quality.
Total RMS Power Output
Total RMS power is measured by multiplying RMS power per channel by the number of channels, and is calculated at the lowest level of operating impedance.

RMS power is the amount of continuous power, measured in watts, that an amplifier produces is called RMS power. The higher the RMS figure, the louder and cleaner your music sounds.

The RMS output figure is much more accurate than the peak rating when comparing products.
Total Peak Power Output
The total peak power output is measured as the wattage per channel multiplied by the number of channels, and is calculated at the lowest level of operating impedance.

It is measured during a brief musical burst, such as a sudden drum accent. Some manufacturers display peak power ratings on the face of their products to increase the appeal.

The RMS power rating is more accurate, and we recommend using it for product comparison.
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Many brands group their products into series or lines of products to help customers know the level of quality (good, better, best for example). You can filter by series and the brand using our guided browsing.
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Minimum Impedance Unbridged
The lowest impedance the amplifier will handle when it is not bridged.
Minimum Impedance Bridged
The lowest impedance the amplifier will handle when it is bridged.
Remote bass/level controller
If the amp comes with a bass/gain remote you will be able to control the level of your bass from your dashboard. Typically bass remotes also include a 16-20 ft. wire for installation.
Sonic Certified Amplifier
Sonic Certified amplifiers have been tested by the experts at Sonic Electronix to meet or exceed the wattage ratings provided by the manufacturer. If this is marked as Yes, then you can trust the wattage ratings. If marked as No, then we have tested the amplifier and it did not meet the advertised wattage ratings. If marked as Not Tested, then the Sonic Electronix experts have not yet been able to test the amp.
Preamp Outputs
Many amplifiers are equipped with RCA preamp outputs which pass the original music signal from the source to additional amplifiers. This is known as daisy chaining because the source connects to the first amp, and the first amp connects to the second amp, etc. The advantage to daisy chaining is you only need one 2-channel RCA cable to transfer the signal from the head-unit to the amplifier, and then one additional cable for each amp being daisy chained.
Built-in Crossover

A crossover is a type of filtering system that permits only certain frequencies to play. A Low-Pass (LP) crossover allows only frequencies below its setting to get through which is good in the case of some subwoofers. A High-Pass(HP) filter allows frequencies above its setting to pass through, this is normally used on speakers.

When a crossover is set to FULL it means no filtering is added and the full frequency spectrum is allowed through the amplifier. Filtering is important because feeding a speaker frequencies it cannot reproduce effectively creates distortion.

Amp Bluetooth Connectivity
This feature will tell you if the amplifier has the capability to connect to a Bluetooth device.
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You are currently viewing discontinued products.

Orion CO1000.4

1000W Cobalt Series 4-Channel Stereo Bridgeable Car Amplifier

CO1000.4 big DISCONTINUED
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Orion CO1000.4

1000W Cobalt Series 4-Channel Stereo Bridgeable Car Amplifier

• 80 Watts x 4-Chan. @ 4 Ohm
• 120 Watts x 4-Chan. @ 2 Ohm
• 1000 Watts Max
• Tri-Mode Capable
• High-Level Inputs
• Selectable Bass Boost
• LED Power/Protect Indicators

• 80 Watts x 4-Chan. @ 4 Ohm
• 120 Watts x 4-Chan. @ 2 Ohm
• 1000 Watts Max
• Tri-Mode Capable
• High-Level Inputs
• Selectable Bass Boost
• LED Power/Protect Indicators

Crunch V4300 V-Drive V-4300

V4300 big DISCONTINUED
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Crunch V4300 V-Drive V-4300

Orion ZO2000.4

2000W Peak (1000W RMS) 4-Channel Amplifier

ZO2000.4 big DISCONTINUED
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Orion ZO2000.4

2000W Peak (1000W RMS) 4-Channel Amplifier

• 90 Watts RMS x 4 @ 4 ohm
• 125 Watts RMS x 4 @ 2 ohm
• Total Peak Power: 2000 Watts
• Selectable Bass Boost: 0/+6/+12 dB
• Heavy duty aluminum alloy heat-sink for extreme heat dissipation
• 9-1/4"W x 14-1/4"L x 2-1/4"H

• 90 Watts RMS x 4 @ 4 ohm
• 125 Watts RMS x 4 @ 2 ohm
• Total Peak Power: 2000 Watts
• Selectable Bass Boost: 0/+6/+12 dB
• Heavy duty aluminum alloy heat-sink for extreme heat dissipation
• 9-1/4"W x 14-1/4"L x 2-1/4"H

Phoenix Gold Xenon X200.4

800 watts, 4-Channel Amplifier

X200.4 big DISCONTINUED
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Phoenix Gold Xenon X200.4

800 watts, 4-Channel Amplifier

800 watt amplifier • 600W x 1 (1-4 Ohm) • Xe.load, Xe.tune, Xe.flow • Built in High/Low Pass Crossovers • Bass Boost: 0-18dB • Variable input sensitivity

3

800 watt amplifier • 600W x 1 (1-4 Ohm) • Xe.load, Xe.tune, Xe.flow • Built in High/Low Pass Crossovers • Bass Boost: 0-18dB • Variable input sensitivity

Alpine BBX-F1200 4 Channel Amp + 4 Alpine Type E 80W 6.5" Coaxial Speakers

Complete Speaker and Amplifier Audio Upgrade Package

BBX-F1200, SXE-1725S big DISCONTINUED
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Alpine BBX-F1200 4 Channel Amp + 4 Alpine Type E 80W 6.5" Coaxial Speakers

Complete Speaker and Amplifier Audio Upgrade Package

• 50 Watts RMS x 4 @ 4 ohm
• 70 Watts RMS x 4 @ 2 ohm
• 130 Watts RMS x 2 @ 4 ohm
• Total Peak Power: 600 Watts
• High and Low Pass Filters
• 0-12dB Bass Boost
• Aluminum Heatsink
• Dimensions: 9.4" W x 12.9" L x 2" H

25

• 50 Watts RMS x 4 @ 4 ohm
• 70 Watts RMS x 4 @ 2 ohm
• 130 Watts RMS x 2 @ 4 ohm
• Total Peak Power: 600 Watts
• High and Low Pass Filters
• 0-12dB Bass Boost
• Aluminum Heatsink
• Dimensions: 9.4" W x 12.9" L x 2" H

Kicker SX700.4

4-Channel SX-Series Amplifier with Digital Sound Processing 04SX700.4

SX700.4 big DISCONTINUED
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Kicker SX700.4

4-Channel SX-Series Amplifier with Digital Sound Processing 04SX700.4

4-Channel Amplifier with Digital Signal Processing • 175W RMS x 4 @ 2 ohm • 350W RMS x 2 @ 4 Ohm • ISIS • BLAST Port • SAMS • UltraMatch Gain Structure • Kompressor • RCA Outputs

1

4-Channel Amplifier with Digital Signal Processing • 175W RMS x 4 @ 2 ohm • 350W RMS x 2 @ 4 Ohm • ISIS • BLAST Port • SAMS • UltraMatch Gain Structure • Kompressor • RCA Outputs

Pioneer GM-4300F

4-Channel Amplifier

GM-4300F big DISCONTINUED
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Pioneer GM-4300F

4-Channel Amplifier

4-Channel Power Amplifier • 40W x 4 chan. @ 4 Ohm • 50W x 4 chan. @ 2 Ohm • screw type speaker terminals • MOSFET power supply • speaker level inputs/preamp outputs • oversized power terminals • CEA-2006 compliant

4-Channel Power Amplifier • 40W x 4 chan. @ 4 Ohm • 50W x 4 chan. @ 2 Ohm • screw type speaker terminals • MOSFET power supply • speaker level inputs/preamp outputs • oversized power terminals • CEA-2006 compliant

Crunch GP880.4

880 Watt Ground Pounder 4-Channel Amplifier

GP880.4 big DISCONTINUED
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Crunch GP880.4

880 Watt Ground Pounder 4-Channel Amplifier

880 Watt Ground Pounder 4-Channel Amplifier • 100W x 4 chan. @ 4 Ohm • 200W x 4 chan. @ 2 Ohm • 3-channel mode • MOSFET outputs •MOSFET Power Supply • remote bass control

880 Watt Ground Pounder 4-Channel Amplifier • 100W x 4 chan. @ 4 Ohm • 200W x 4 chan. @ 2 Ohm • 3-channel mode • MOSFET outputs •MOSFET Power Supply • remote bass control

Boss RIP-795 Ripper Series

RIP-795 big DISCONTINUED
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Boss RIP-795 Ripper Series

THIS PRODUCT HAS BEEN DISCONTINUED... Click link above to view the replacement model(s)

THIS PRODUCT HAS BEEN DISCONTINUED... Click link above to view the replacement model(s)

PowerBass Xtreme XAX-4160FD

640W RMS XAX Series Full Range Class D 4-Channel Mini Amplifier

XAX-4160FD big DISCONTINUED
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PowerBass Xtreme XAX-4160FD

640W RMS XAX Series Full Range Class D 4-Channel Mini Amplifier

XAX Series 4-Channel Class D Mini Car Amplifier • 1280W MAX • High Efficiency SMD Circuit Technology • Damping Control Circuit • Blue LED Logo, Power And Speaker Terminal Lighting • Platinum-Plated Tiffany RCA Inputs

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XAX Series 4-Channel Class D Mini Car Amplifier • 1280W MAX • High Efficiency SMD Circuit Technology • Damping Control Circuit • Blue LED Logo, Power And Speaker Terminal Lighting • Platinum-Plated Tiffany RCA Inputs

Hifonics HS300.4

600W Peak (300W RMS) Samson Series 4-Channel 2-Ohm Stable Amplifier

HS300.4 big DISCONTINUED
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Hifonics HS300.4

600W Peak (300W RMS) Samson Series 4-Channel 2-Ohm Stable Amplifier

• 40 Watts RMS x 4 @ 4 ohm
• 75 Watts RMS x 4 @ 2 ohm
• Total Peak Power: 600 Watts
• Variable low-pass filter: 30 - 250 Hz
• Variable high-pass filter: 60 - 1200Hz
• Variable Bass Boost: 0 to +12 dB bass boost at 45 Hz
• Dimensions: 9.96"W x 10.24"L x 2.28"H

• 40 Watts RMS x 4 @ 4 ohm
• 75 Watts RMS x 4 @ 2 ohm
• Total Peak Power: 600 Watts
• Variable low-pass filter: 30 - 250 Hz
• Variable high-pass filter: 60 - 1200Hz
• Variable Bass Boost: 0 to +12 dB bass boost at 45 Hz
• Dimensions: 9.96"W x 10.24"L x 2.28"H

EXCLUSIVE

JBL 6-1/2" & 6x9" Speakers + Precision Power 4-Channel Amplifier

List price $559.89: JBL GTO628/GTO938 6-1/2" / 6x9" Grand Touring Series Coaxial Speakers + PPI i320.4 4-Ch Class D Full-Range Digital Amplifier

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JBL 6-1/2" & 6x9" Speakers + Precision Power 4-Channel Amplifier

List price $559.89: JBL GTO628/GTO938 6-1/2" / 6x9" Grand Touring Series Coaxial Speakers + PPI i320.4 4-Ch Class D Full-Range Digital Amplifier

• 80W x 4-Chan. @ 2 ohm
• Mylar / Titanium Composite Dome Tweeter
• Mounting Depth: 2-1/16"
• Plus One Cone Material
• 2 Ohm Impedance
• 3-Way System Protection
• 4/3/2/1 Channel Operation
• 4 Gauge Power and Ground Inputs
• Surface Mount Technology (SMT)

163

• 80W x 4-Chan. @ 2 ohm
• Mylar / Titanium Composite Dome Tweeter
• Mounting Depth: 2-1/16"
• Plus One Cone Material
• 2 Ohm Impedance
• 3-Way System Protection
• 4/3/2/1 Channel Operation
• 4 Gauge Power and Ground Inputs
• Surface Mount Technology (SMT)

Performance Teknique ICBM-7995

800W Max, 4-Channel Amplifier with Wired Bass Remote

ICBM-7995 big DISCONTINUED
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Performance Teknique ICBM-7995

800W Max, 4-Channel Amplifier with Wired Bass Remote

ICBM 4-Channel Class A/B Car Amplifier • 75 Watts X 4 Chan. @ 4 Ohm • 100 Watts X 4 Chan. @ 2 Ohm • 800 Watts MAX • Tri-Mode Capability • Bypass Line Output • 3-Way System Protection • 4/3/2 Channel Operation •

ICBM 4-Channel Class A/B Car Amplifier • 75 Watts X 4 Chan. @ 4 Ohm • 100 Watts X 4 Chan. @ 2 Ohm • 800 Watts MAX • Tri-Mode Capability • Bypass Line Output • 3-Way System Protection • 4/3/2 Channel Operation •

RE Audio ZTX-800.4 (ZTX800.4)

420W RMS 4-Channel Class AB ZTX Series Car Amplifier

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RE Audio ZTX-800.4 (ZTX800.4)

420W RMS 4-Channel Class AB ZTX Series Car Amplifier

ZTX Series 4-Channel Class AB Amplifier • 85W x 4 Chan. @ 4 ohm • 110W x 4 Chan. @ 2 ohm • 210W x 2 Chan. @ 4 ohm • 3-Way System Protection • 4/3/2/1 Channel Operation • 4 Gauge Power and Ground Inputs • Variable Bass Boost 0-18 dB

2

ZTX Series 4-Channel Class AB Amplifier • 85W x 4 Chan. @ 4 ohm • 110W x 4 Chan. @ 2 ohm • 210W x 2 Chan. @ 4 ohm • 3-Way System Protection • 4/3/2/1 Channel Operation • 4 Gauge Power and Ground Inputs • Variable Bass Boost 0-18 dB

Boss RIP-896 Ripper Series

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Boss RIP-896 Ripper Series

2000 watts 4-channel bridgeable amplifier • cooling fan • 2 ohm stereo stable • VU meters • gold-plated RCA inputs

4

2000 watts 4-channel bridgeable amplifier • cooling fan • 2 ohm stereo stable • VU meters • gold-plated RCA inputs

Soundstream PCA4.260

4-Channel Amplifier

PCA4.260 big DISCONTINUED
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Soundstream PCA4.260

4-Channel Amplifier

4-Channel Picasso Series Amplifier • 40W RMS x 4 @ 4 • 130W RMS x 2 Bridged • High & Low Inputs • Line Out • PWM MOSFET Circutry • Tri-Guard • Tri-Mode Operation • Phase Inversion Switch

4-Channel Picasso Series Amplifier • 40W RMS x 4 @ 4 • 130W RMS x 2 Bridged • High & Low Inputs • Line Out • PWM MOSFET Circutry • Tri-Guard • Tri-Mode Operation • Phase Inversion Switch

Cerwin-Vega H41200.4

1200W HED Series 4-Channel Class AB Amplifier

H41200.4 big DISCONTINUED
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Cerwin-Vega H41200.4

1200W HED Series 4-Channel Class AB Amplifier

• RMS Power: 80W x 4 @ 4 ohm , 110 watts x 4 @ 2 ohm
• Total Peak Power: 1200W
• Variable Low-Pass Filter
• Pulse Width Modulated MOSFET Power Supply
• Heavy-Grade Aluminum Alloy Extruded Heatsink

1

• RMS Power: 80W x 4 @ 4 ohm , 110 watts x 4 @ 2 ohm
• Total Peak Power: 1200W
• Variable Low-Pass Filter
• Pulse Width Modulated MOSFET Power Supply
• Heavy-Grade Aluminum Alloy Extruded Heatsink

Boss MR404

400W Max, 4-Channel MR Series Marine Amplifier

6-Year Manufacturer's Extended Warranty When Bought Here!

MR404 big DISCONTINUED
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Boss MR404

400W Max, 4-Channel MR Series Marine Amplifier

• 4 ohm: 50 watts x 4 chan.
• 2 ohm: 100 watts x 4 chan.
• Pulse Width Modulated MOSFET Power Supply
• LED power (green) and Protect (red) Indicators
• Variable Bass Boost (0 to +12 dB bass boost at 50 Hz)

Promo Savings Icon

6-Year Manufacturer's Extended Warranty When Bought Here!

• 4 ohm: 50 watts x 4 chan.
• 2 ohm: 100 watts x 4 chan.
• Pulse Width Modulated MOSFET Power Supply
• LED power (green) and Protect (red) Indicators
• Variable Bass Boost (0 to +12 dB bass boost at 50 Hz)

Hifonics HFi55.4

440W RMS, 4-Channel HFi Series Amplifier (HFi 55.4)

HFi55.4 big DISCONTINUED
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Hifonics HFi55.4

440W RMS, 4-Channel HFi Series Amplifier (HFi 55.4)

HFi Series 4-Channel Class A/B Car Amplifier • 110W x 4-Chan. @ 2 Ohm • 55W x 4-Chan. @ 4 Ohm • Tri-Mode Speaker Operation • 4-Way System Protection Circuitry • Preamp RCA Outputs • Blue Illuminated Hifonics Badge

15

HFi Series 4-Channel Class A/B Car Amplifier • 110W x 4-Chan. @ 2 Ohm • 55W x 4-Chan. @ 4 Ohm • Tri-Mode Speaker Operation • 4-Way System Protection Circuitry • Preamp RCA Outputs • Blue Illuminated Hifonics Badge

MB Quart ONX4.60 (Factory Refurbished)

480W RMS, ONYX Series 4-Channel Amplifier (ONX-4.60)

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MB Quart ONX4.60 (Factory Refurbished)

480W RMS, ONYX Series 4-Channel Amplifier (ONX-4.60)

• ONYX Series 4-Channel Class A/B Car Amplifier
• 120W x 4 Chan @ 2 Ohm
• 60W x 4 Chan @ 4 Ohm
• Unbalanced RCA Input Jack
• Preamp RCA Outputs
• 4-Way System Protection Circuitry
• Piano Black Gloss Finish

• ONYX Series 4-Channel Class A/B Car Amplifier
• 120W x 4 Chan @ 2 Ohm
• 60W x 4 Chan @ 4 Ohm
• Unbalanced RCA Input Jack
• Preamp RCA Outputs
• 4-Way System Protection Circuitry
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    FAQ Frequently asked questions in Discontinued 4-Channel Amplifiers

    4 Channel Amplifiers Frequently Asked Questions (FAQ)
    A 4-channel amplifier is a type of car audio amplifier that features four separate channels, each capable of powering a speaker or a pair of speakers. By distributing power across four channels, you can connect your front and rear speakers to the amplifier, significantly enhancing the overall sound quality and clarity in your car audio system. With a 4-channel amplifier, you can achieve a balanced soundstage, where the music seems to come from different directions, providing an immersive listening experience. Additionally, these amplifiers often come with adjustable crossovers and gain controls, allowing you to fine-tune the audio output for each set of speakers, optimizing the sound reproduction according to your preferences.
    Yes, many 4-channel amplifiers are bridgeable, allowing you to combine two channels to power a single speaker or subwoofer with higher output power. This bridging capability is useful if you have a pair of high-powered front speakers or a powerful subwoofer that requires more power than a single channel can provide. However, it's essential to check the amplifier's specifications and instructions to confirm its bridgeability and the recommended bridging configurations. Not all 4-channel amplifiers support bridging, and improper bridging can damage the amplifier or connected speakers. If you are unsure about bridging your 4-channel amplifier, consult the amplifier's manual or reach out to Sonic Electronix customer support for expert assistance.
    To select the right 4-channel amplifier for your speakers, consider their power handling capabilities and impedance. First, identify the RMS power rating of your front and rear speakers. The amplifier's RMS power output per channel should match or slightly exceed the RMS power rating of your speakers to ensure optimal performance without distortion. Next, check the impedance (measured in ohms) of your speakers, as well as the amplifier's minimum and maximum impedance ratings. Match the speaker impedance with the appropriate amplifier channels to prevent compatibility issues. For example, if your speakers have an impedance of 4 ohms, make sure the amplifier channels for those speakers can handle a 4-ohm load. Paying attention to these specifications ensures a seamless integration of your speakers with the 4-channel amplifier.
    Yes, a 4-channel amplifier can be used to power additional speakers, such as tweeters or coaxial speakers, in your car audio system. Beyond the front and rear speakers, a 4-channel amplifier has the flexibility to accommodate additional speaker types, provided that the total load impedance and power requirements of the amplifier's channels are within its specifications. For example, if your 4-channel amplifier has two unused channels, you can use them to power additional speakers for improved sound coverage and audio performance. Be cautious not to overload the amplifier, and ensure that the speakers' impedance and power handling align with the available channels to avoid damaging the amplifier or speakers. If you have questions about expanding your audio system with a 4-channel amplifier, seek expert advice from Sonic Electronix.
    A proper and safe installation of a 4-channel amplifier is essential for optimal performance and to prevent any electrical or mechanical issues. To ensure a successful installation, start by reading the amplifier's user manual thoroughly, as it contains specific instructions and guidelines for installation. Follow all safety precautions and use the appropriate wiring and connectors rated for the amplifier's power output. Securely mount the amplifier in a well-ventilated area, away from heat sources, and avoid placing it on carpeted surfaces. Route and secure all cables carefully to avoid interference and potential hazards. Double-check all connections to ensure they are tight and secure. If you are not confident in installing the amplifier yourself, consider seeking professional installation services to ensure a safe and expertly done installation that optimizes the performance of your 4-channel amplifier and car audio system.
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