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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.

Hifonics Zeus ZXi80.4

640W RMS, Zeus Series 4-Channel Amplifier (ZXi 80.4)

ZXi80.4 big DISCONTINUED
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Hifonics Zeus ZXi80.4

640W RMS, Zeus Series 4-Channel Amplifier (ZXi 80.4)

Zeus Series 4 Channel Class A/B Car Amplifier • 160W x 4-Chan. @ 2 Ohm • 80W x 4-Chan. @ 4 Ohm • Wired HFR-3 Remote • 4-Way System Protection • MOSFET Power Supply • Silver-Plated RCA Inputs

32

Zeus Series 4 Channel Class A/B Car Amplifier • 160W x 4-Chan. @ 2 Ohm • 80W x 4-Chan. @ 4 Ohm • Wired HFR-3 Remote • 4-Way System Protection • MOSFET Power Supply • Silver-Plated RCA Inputs

Orion HCCA10004

1000W HCCA Competition Series 4-Channel Amplifier

HCCA10004 big DISCONTINUED
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Orion HCCA10004

1000W HCCA Competition Series 4-Channel Amplifier

• 250W x 4-Chan @ 2 Ohm
• 125W x 4-Chan @ 4 Ohm
• Intelli-Q Variable Bass Boost
• Preamp RCA Outputs
• 5-Way System Protection Circuitry

1

• 250W x 4-Chan @ 2 Ohm
• 125W x 4-Chan @ 4 Ohm
• Intelli-Q Variable Bass Boost
• Preamp RCA Outputs
• 5-Way System Protection Circuitry

NVX - Worth the Envy - Direct to Consumer Car Audio

Autotek AXL4050.4

4000W 4-Channel AXL Series Class AB Car Amplifier

AXL4050.4 big DISCONTINUED
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Autotek AXL4050.4

4000W 4-Channel AXL Series Class AB Car Amplifier

• 500W x 4-Chan. @ 4 ohm
• 1000W x 4-Chan. @ 2 ohm
• 2000W x 2 Chan. @ 4 ohm
• 3-Way System Protection
• 4/3/2 Channel Operation
• 1/0 Gauge Power and Ground Inputs
• Illuminated Logo for Stylish and Unique Design

2

• 500W x 4-Chan. @ 4 ohm
• 1000W x 4-Chan. @ 2 ohm
• 2000W x 2 Chan. @ 4 ohm
• 3-Way System Protection
• 4/3/2 Channel Operation
• 1/0 Gauge Power and Ground Inputs
• Illuminated Logo for Stylish and Unique Design

Rockford Fosgate P1000X4D

1000W RMS 4-Channel Class D Punch Series High Efficiency Amplifier

P1000X4D big DISCONTINUED
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Rockford Fosgate P1000X4D

1000W RMS 4-Channel Class D Punch Series High Efficiency Amplifier

Punch Series Class D Full Range 4-Channel Car Amplifier • 150W x 4 Chan. @ 4 ohm • 250W x 4 Chan. @ 2 ohm • 500W x 2 Chan. @ 4 ohm Bridged • Punch EQ 2 Variable Bass Boost • High/Low Pass Crossovers • CEA-2006 Compliant

Punch Series Class D Full Range 4-Channel Car Amplifier • 150W x 4 Chan. @ 4 ohm • 250W x 4 Chan. @ 2 ohm • 500W x 2 Chan. @ 4 ohm Bridged • Punch EQ 2 Variable Bass Boost • High/Low Pass Crossovers • CEA-2006 Compliant

Lanzar VIBE418 Viberant Series

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Lanzar VIBE418 Viberant Series

4-Channel Viberant Series Bridgeable Amplifier • 800W Max / 400W RMS @ 4 ohm • 700W RMS @ 2 Ohm Stable

4-Channel Viberant Series Bridgeable Amplifier • 800W Max / 400W RMS @ 4 ohm • 700W RMS @ 2 Ohm Stable

Bazooka MAA465

4-Channel Marine Amplifier

MAA465 big DISCONTINUED
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Bazooka MAA465

4-Channel Marine Amplifier

4-Channel Marine Amplifier • 64W x 4 chan. @ 4 Ohm • 90W x 4 chan. @ 2 Ohm • aluminum heat sink • illuminated logo • remote turn-on • short, thermal, and overload protection • adjustable input sensitivity

4-Channel Marine Amplifier • 64W x 4 chan. @ 4 Ohm • 90W x 4 chan. @ 2 Ohm • aluminum heat sink • illuminated logo • remote turn-on • short, thermal, and overload protection • adjustable input sensitivity

Power Acoustik D4-1400B

1400W Max 4 Channel Class A/B Demon Series Car Amplifier

D4-1400B big DISCONTINUED
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Power Acoustik D4-1400B

1400W Max 4 Channel Class A/B Demon Series Car Amplifier

Demon Series 4-Channel Class AB Car Amplifier • 1400W Peak • Regulated PWM MOSFET Power Supply • Remote Subwoofer Level Control • LED Power and Protection Indicators • Bass Boost • 2-Way System Protection Circuitry

Demon Series 4-Channel Class AB Car Amplifier • 1400W Peak • Regulated PWM MOSFET Power Supply • Remote Subwoofer Level Control • LED Power and Protection Indicators • Bass Boost • 2-Way System Protection Circuitry

Orion ZO4000.4

4,000W Peak (2000W RMS) 4-Channel Amplifier

ZO4000.4 big DISCONTINUED
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Orion ZO4000.4

4,000W Peak (2000W RMS) 4-Channel Amplifier

• 175 Watts RMS x 4 @ 4 ohm
• 250 Watts RMS x 4 @ 2 ohm
• Total Peak Power: 4000 Watts
• Selectable Bass Boost: 0/+6/+12 dB
• Heavy duty aluminum alloy heat-sink for extreme heat dissipation
• 382mmW x 231.5mmL x 55.5mmH

• 175 Watts RMS x 4 @ 4 ohm
• 250 Watts RMS x 4 @ 2 ohm
• Total Peak Power: 4000 Watts
• Selectable Bass Boost: 0/+6/+12 dB
• Heavy duty aluminum alloy heat-sink for extreme heat dissipation
• 382mmW x 231.5mmL x 55.5mmH

Rockford Fosgate Punch P850.4

Punch Series 4-Channel Amplifier

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Rockford Fosgate Punch P850.4

Punch Series 4-Channel Amplifier

850 watt Punch Series 4-Channel Amplifier • 100 watts x 4 chan. @ 4 Ohm • 210 watts x 2 chan. @ 2 Ohm • preamp inputs and outputs • CEA-2006 compliant

850 watt Punch Series 4-Channel Amplifier • 100 watts x 4 chan. @ 4 Ohm • 210 watts x 2 chan. @ 2 Ohm • preamp inputs and outputs • CEA-2006 compliant

NVX VADM4 Amplifier + (4) Alpine 6x9" Speakers + Belva BBSW127

400W RMS NVX 4-Channel Car/Marine/Powersports Amplifier + (4) Alpine SXE6925S Coaxial Speakers + Belva Speaker Wire

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NVX VADM4 Amplifier + (4) Alpine 6x9" Speakers + Belva BBSW127

400W RMS NVX 4-Channel Car/Marine/Powersports Amplifier + (4) Alpine SXE6925S Coaxial Speakers + Belva Speaker Wire

• 400 Watt True RMS Output!
• Marine Certified 4-Channel Micro Class D Amplifier
• 75W x 4-Chan. @ 4 ohm
• 100W x 4-Chan. @ 2 ohm
• 3-Way System Protection
• 4/2 Channel Operation
• 8 Gauge Power and Ground Inputs
• Extremely Small Footprint!

90

• 400 Watt True RMS Output!
• Marine Certified 4-Channel Micro Class D Amplifier
• 75W x 4-Chan. @ 4 ohm
• 100W x 4-Chan. @ 2 ohm
• 3-Way System Protection
• 4/2 Channel Operation
• 8 Gauge Power and Ground Inputs
• Extremely Small Footprint!

MTX Audio TC6004 + Amplifier Kit

1800W Max 4-Channel Amplifier w/ 4 Gauge Amplifier Kit and 4 Channel RCA Interconnects

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MTX Audio TC6004 + Amplifier Kit

1800W Max 4-Channel Amplifier w/ 4 Gauge Amplifier Kit and 4 Channel RCA Interconnects

Thunder Series 4-Channel Class A/B Car Amplifier • 1800W Max • 150 Watts x 4 Chan. @ 2 Ohm • Speaker Level Inputs • Preamp Summed RCA Output • Wired Remote Bass Level Control • Includes Amp Kit & RCA Interconnects

30

Thunder Series 4-Channel Class A/B Car Amplifier • 1800W Max • 150 Watts x 4 Chan. @ 2 Ohm • Speaker Level Inputs • Preamp Summed RCA Output • Wired Remote Bass Level Control • Includes Amp Kit & RCA Interconnects

American Bass HD1504

600W 4-Channel Class A/B HD Series Car Amplifier

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American Bass HD1504

600W 4-Channel Class A/B HD Series Car Amplifier

• 600 Watts Max
• 60 Amp External Fuse Required (Not Included)
• Variable Low Pass Filter
• Freq. Response: 15Hz-27,000Hz
• 4-Way Protection

1

• 600 Watts Max
• 60 Amp External Fuse Required (Not Included)
• Variable Low Pass Filter
• Freq. Response: 15Hz-27,000Hz
• 4-Way Protection

EXCLUSIVE

Alpine Type-S Ultra-Compact 4-Channel Amplified System with 6.5" & 6x9" Speakers

Alpine SPS-610C 6.5" 2-Way Type-S Components + SPS-619 6x9" Coaxial + NVX MVPA4 Micro-V Series 4-Channel Class D Amplifier w/ Amp Wiring Kit

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Alpine Type-S Ultra-Compact 4-Channel Amplified System with 6.5" & 6x9" Speakers

Alpine SPS-610C 6.5" 2-Way Type-S Components + SPS-619 6x9" Coaxial + NVX MVPA4 Micro-V Series 4-Channel Class D Amplifier w/ Amp Wiring Kit

• 50W x 4-Chan. @ 4 ohm
• 1" Silk Dome Tweeter
• Tuned Poly-Mica Cone
• 4 Ohm Impedance
• 3-Way System Protection
• Extremely Small Footprint!
• Silver-Tinned 100% Virgin Copper
• 4-channel RCA Interconnect Cable

• 50W x 4-Chan. @ 4 ohm
• 1" Silk Dome Tweeter
• Tuned Poly-Mica Cone
• 4 Ohm Impedance
• 3-Way System Protection
• Extremely Small Footprint!
• Silver-Tinned 100% Virgin Copper
• 4-channel RCA Interconnect Cable

EXCLUSIVE

JBL 4-Channel Amplified Setup with 6-1/2", 6x9" Speakers and Wiring Kit

JBL P963 6-1/2" 2-way Power Series Speakers + JBL P963 6x9" 3-way Power Series Speakers + JBL GX-A604 4-Ch Amplifier + NVX Wiring Kit

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JBL 4-Channel Amplified Setup with 6-1/2", 6x9" Speakers and Wiring Kit

JBL P963 6-1/2" 2-way Power Series Speakers + JBL P963 6x9" 3-way Power Series Speakers + JBL GX-A604 4-Ch Amplifier + NVX Wiring Kit

• 85W x 4 @ 2 ohm
• Plus One HCL Woofer cone
• Textile dome tweeters
• voice-matched passive crossover
• 2 ohm impedance
• Oversized voice coils and integrated tinsel leads
• 8 Gauge 2-Channel Complete Amplifier Installation Kit
• For Car Audio Systems Up To 600 Watts RMS
• Silver-Tinned 100% Virgin Copper
• 2-channel RCA Interconnect Cable

• 85W x 4 @ 2 ohm
• Plus One HCL Woofer cone
• Textile dome tweeters
• voice-matched passive crossover
• 2 ohm impedance
• Oversized voice coils and integrated tinsel leads
• 8 Gauge 2-Channel Complete Amplifier Installation Kit
• For Car Audio Systems Up To 600 Watts RMS
• Silver-Tinned 100% Virgin Copper
• 2-channel RCA Interconnect Cable

Lanzar VIBE235 Viberant Series

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Lanzar VIBE235 Viberant Series

400W Peak / 200W RMS x 4 Channel Viberant Series Amplifier • Electronic Crossover Network • gold RCA inputs • bass boost circuit • 2 ohm stable • Tri-Mode Capable • Dual VU Meter

400W Peak / 200W RMS x 4 Channel Viberant Series Amplifier • Electronic Crossover Network • gold RCA inputs • bass boost circuit • 2 ohm stable • Tri-Mode Capable • Dual VU Meter

Boss NX3000.4

3000W Max, Onyx Series 4-Channel Power Amplifier

NX3000.4 big DISCONTINUED
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Boss NX3000.4

3000W Max, Onyx Series 4-Channel Power Amplifier

Onyx Series 4-Channel Car Amplifier • 300W x 4 chan @ 4 Ohm • 700W x 4 chan @ 2 Ohm • MOSFET PWM Power Supply • Trimode Operation • Remote Subwoofer Level Control Included • LED Power/Protection Indicators

4

Onyx Series 4-Channel Car Amplifier • 300W x 4 chan @ 4 Ohm • 700W x 4 chan @ 2 Ohm • MOSFET PWM Power Supply • Trimode Operation • Remote Subwoofer Level Control Included • LED Power/Protection Indicators

MB Quart DSC 480 + Amplifier Kit

640W RMS, Class A/B 4-Channel Discus Series Amplifier (DSC480d) w/ 4 Gauge Amp Kit

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MB Quart DSC 480 + Amplifier Kit

640W RMS, Class A/B 4-Channel Discus Series Amplifier (DSC480d) w/ 4 Gauge Amp Kit

Discus Series 4-Channel Class AB Car Amplifier • 80W x 4 Chan. @ 4 Ohm • 160W x 4 Chan. @ 2 Ohm • 320W x 2 Chan. @ 4 Ohm • Preamp RCA Outputs • Includes a 4 Gauge Amplifier Kit

44

Discus Series 4-Channel Class AB Car Amplifier • 80W x 4 Chan. @ 4 Ohm • 160W x 4 Chan. @ 2 Ohm • 320W x 2 Chan. @ 4 Ohm • Preamp RCA Outputs • Includes a 4 Gauge Amplifier Kit

EXCLUSIVE

Kenwood KAC-8405 + Amplifier Kit

720W Max, 4-Channel Performance Series Amplifier with 4 Gauge Amplifier Kit

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Kenwood KAC-8405 + Amplifier Kit

720W Max, 4-Channel Performance Series Amplifier with 4 Gauge Amplifier Kit

4-Channel Class AB Car Amplifier • 60W x 4 chan. @ 4 ohm • 90W x 4 chan. @ 2 ohm • 180W x 2 chan. @ 4 ohm • 720W Max • Built-in cooling fan • Included 4 Gauge Amplifier Kit

4-Channel Class AB Car Amplifier • 60W x 4 chan. @ 4 ohm • 90W x 4 chan. @ 2 ohm • 180W x 2 chan. @ 4 ohm • 720W Max • Built-in cooling fan • Included 4 Gauge Amplifier Kit

Autotek MM100.4

500W RMS Mean Machine Series 4-Channel Amplifier

MM100.4 big DISCONTINUED
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Autotek MM100.4

500W RMS Mean Machine Series 4-Channel Amplifier

Mean Machine Series 4-Channel Car Amplifier • 100 Watts x 4 Chan @ 4 Ohm • 150 Watts x 4 Chan @ 2 Ohm • MOSFET Power Supply • LED Power Indicators • TCID (Twin Coil Isolation Design) • Aluminum Alloy Heatsink

Mean Machine Series 4-Channel Car Amplifier • 100 Watts x 4 Chan @ 4 Ohm • 150 Watts x 4 Chan @ 2 Ohm • MOSFET Power Supply • LED Power Indicators • TCID (Twin Coil Isolation Design) • Aluminum Alloy Heatsink

Kenwood KAC-6402

4-Channel Amplifier

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Kenwood KAC-6402

4-Channel Amplifier

4-Channel Power Amplifier • 40W RMS x 4 @ 4 • 100W RMS x 2 @ 4 Bridged • Cast Aluminum Heat Sink • Variable Crossovers High & Low Level Inputs • Tri-Mode Capable • Red Power Indicator Jewel

4-Channel Power Amplifier • 40W RMS x 4 @ 4 • 100W RMS x 2 @ 4 Bridged • Cast Aluminum Heat Sink • Variable Crossovers High & Low Level Inputs • Tri-Mode Capable • Red Power Indicator Jewel

NVX - Worth the Envy - Direct to Consumer Car Audio
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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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