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Discontinued 4-Channel Amplifiers

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Dual 4-Channel Amplifier+ Rockford Fosgate 6.5/6x9 Speakers Set (2 Each)+Amp Kit

800W Dual XPE Series Amplifier + Rockford Fosgate 6.5" Speakers + Rockford Fosgate 6x9" Speakers + Belva Bak82bl (Blue)

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800W Dual XPE Series Amplifier + Rockford Fosgate 6.5" Speakers + Rockford Fosgate 6x9" Speakers + Belva Bak82bl (Blue)

XPE Series 4-Channel Class A/B Car Amplifier • 50 Watts x 4 Chan @ 4 Ohm • 75 Watts x 4 Chan @ 2 Ohm • Selectable Bass Boost • Speaker-Level Inputs • High/Low Pass Filters

XPE Series 4-Channel Class A/B Car Amplifier • 50 Watts x 4 Chan @ 4 Ohm • 75 Watts x 4 Chan @ 2 Ohm • Selectable Bass Boost • Speaker-Level Inputs • High/Low Pass Filters

JBL GTO504

560W Max, 4-Channel Grand Touring Series Class AB Amplifier

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560W Max, 4-Channel Grand Touring Series Class AB Amplifier

Grand Touring Series 4-Channel Class AB Car Amplifier • 55W x 4 chan. @ 4 ohm • 70W x 4 chan. @ 2 ohm • 140W x 4 chan. Max • Preamp RCA outputs • Cast-aluminum heatsink

Grand Touring Series 4-Channel Class AB Car Amplifier • 55W x 4 chan. @ 4 ohm • 70W x 4 chan. @ 2 ohm • 140W x 4 chan. Max • Preamp RCA outputs • Cast-aluminum heatsink

Power Acoustik RZ4-2000D Open Box Complete (Very Good, Used)

2000W 4-Channel RAZOR Series Full Range Class D Car Amplifier

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2000W 4-Channel RAZOR Series Full Range Class D Car Amplifier

• Item Condition: Open Box
• 4 ohm: 160 watts x 4-Chan.
• 2 ohm: 250 watts x 4-Chan.
• Bridged, 4 ohm: 500 x 2 chan.
• Max power output: 2000 watts
• 80Hz HP Crossover @ 12dB
• 80Hz LP Crossover @ 12dB

• Item Condition: Open Box
• 4 ohm: 160 watts x 4-Chan.
• 2 ohm: 250 watts x 4-Chan.
• Bridged, 4 ohm: 500 x 2 chan.
• Max power output: 2000 watts
• 80Hz HP Crossover @ 12dB
• 80Hz LP Crossover @ 12dB

Autotek SMA1100.4 4 Channel Amplifier w/ Complete 8 AWG Amp Kit

1100W 4-Channel Street Machine (SMA) Series Amplifier + Amp Kit

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1100W 4-Channel Street Machine (SMA) Series Amplifier + Amp Kit

• Max: 150W x 4 @ 4 ohm, 275W x 4 @ 2 ohm , Bridged 550W x 2 @ 4 ohm
• Total Peak Power: 1100W
• Pulse Width Modulated MOSFET power supply
• Preamp RCA outputs to daisy chain multiple amps
• High-density split-dome convection heat-sink for extreme heat dissipation
• Complete 8 Gauge 4-Channel Amplifier Installation Kit

• Max: 150W x 4 @ 4 ohm, 275W x 4 @ 2 ohm , Bridged 550W x 2 @ 4 ohm
• Total Peak Power: 1100W
• Pulse Width Modulated MOSFET power supply
• Preamp RCA outputs to daisy chain multiple amps
• High-density split-dome convection heat-sink for extreme heat dissipation
• Complete 8 Gauge 4-Channel Amplifier Installation Kit

Eclipse EA4100

400W Max, 4-Channel Amplifier

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400W Max, 4-Channel Amplifier

EA Series 4-Channel Class AB Car Amplifier • 75W x 4 chan. @ 4 ohm • 150W x 2 chan. @ 4 ohm • 200W x 2 chan. Max • MOSFET power supply • 4/3/2 channel operation • Preamp RCA outputs

EA Series 4-Channel Class AB Car Amplifier • 75W x 4 chan. @ 4 ohm • 150W x 2 chan. @ 4 ohm • 200W x 2 chan. Max • MOSFET power supply • 4/3/2 channel operation • Preamp RCA outputs

Kenwood KAC-8452

4-Channel Amplifier

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4-Channel Amplifier

4-Channel Power Amplifier • Variable Crossover • High and Low Level Inputs • 70W RMS x 4 @ 4 • 100W RMS x 4 @ 2 • 1 Pair RCA Outputs • 0 -18/dB Bass Boost

4-Channel Power Amplifier • Variable Crossover • High and Low Level Inputs • 70W RMS x 4 @ 4 • 100W RMS x 4 @ 2 • 1 Pair RCA Outputs • 0 -18/dB Bass Boost

Crunch PDX-1000.4

1000W Max PDX Series Bridgeable 4-Channel Class A/B Car Amplifier

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1000W Max PDX Series Bridgeable 4-Channel Class A/B Car Amplifier

Power One Series 4-Channel Class A/B Car Amplifier • 1000W Max • 500W x 2-Chan @ 1 Ohm • SEPP Analog Amplifier • Variable Bass Boost • Speaker-Level Inputs • Preamp RCA Outputs • 3-Way System Protection Circuitry

Power One Series 4-Channel Class A/B Car Amplifier • 1000W Max • 500W x 2-Chan @ 1 Ohm • SEPP Analog Amplifier • Variable Bass Boost • Speaker-Level Inputs • Preamp RCA Outputs • 3-Way System Protection Circuitry

Soundstream AR4.1800

1800W Peak (260W RMS) Arachnid Series Class-A/B 4-Channel 2-Ohm Stable Amplifier

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1800W Peak (260W RMS) Arachnid Series Class-A/B 4-Channel 2-Ohm Stable Amplifier

• 80 Watts RMS x 4 @ 4 ohm
• 130 Watts RMS x 4 @ 2 ohm
• Total Peak Power: 1,200 Watts
• Bass Boost
• Aluminum Heatsink
• 8.5" W x 15.75" L x 2" H

• 80 Watts RMS x 4 @ 4 ohm
• 130 Watts RMS x 4 @ 2 ohm
• Total Peak Power: 1,200 Watts
• Bass Boost
• Aluminum Heatsink
• 8.5" W x 15.75" L x 2" H

JBL STAGEA6004 (Open Box, Complete)

560W Max (240W RMS) Stage Series 4 ohm Stable 4-Channel Class-D Amplifier w/ Remote Level Control

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560W Max (240W RMS) Stage Series 4 ohm Stable 4-Channel Class-D Amplifier w/ Remote Level Control

• 60 Watts RMS x 4 @ 4 ohm
• 70 Watts RMS x 4 @ 2 ohm

• Total Peak Power: 560 Watts
• CEA-2006 Compliant
• 12dB Bass Boost
• Alloy Heat Sink
• Frequency Response: 20 - 20000 Hz

• 60 Watts RMS x 4 @ 4 ohm
• 70 Watts RMS x 4 @ 2 ohm

• Total Peak Power: 560 Watts
• CEA-2006 Compliant
• 12dB Bass Boost
• Alloy Heat Sink
• Frequency Response: 20 - 20000 Hz

Autotek TA1050.4

1000W Max TA Series 4 ohm Stable 4-Channel Class-A/B Amplifier

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1000W Max TA Series 4 ohm Stable 4-Channel Class-A/B Amplifier

• 125 Watts x 1 @ 4 ohm
• 250 Watts x 4 @ 2 ohm
• Total Peak Power: 1000 Watts
• Heavy duty aluminum alloy heat-sink heat-sink for extreme heat dissipation
• Dimensions: 11.4"W x 13.9"L x 4"H

• 125 Watts x 1 @ 4 ohm
• 250 Watts x 4 @ 2 ohm
• Total Peak Power: 1000 Watts
• Heavy duty aluminum alloy heat-sink heat-sink for extreme heat dissipation
• Dimensions: 11.4"W x 13.9"L x 4"H

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4 Channel Amplifier • 110W RMS X 4 @ 2 • RCA Outputs • Built-In Crossover • Bass Remote Included • Hifonics Generation Heatsink Design

4 Channel Amplifier • 110W RMS X 4 @ 2 • RCA Outputs • Built-In Crossover • Bass Remote Included • Hifonics Generation Heatsink Design

MB Quart ZA2-1000.4 w/ Complete 4 -Channel Amp Kit

1000W RMS Z-Line Class-A/B 4-Channel 2-Ohm Stable Amplifier w/ Complete 4 Channel 4 AWG Gauge Amplifier Wiring Kit

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1000W RMS Z-Line Class-A/B 4-Channel 2-Ohm Stable Amplifier w/ Complete 4 Channel 4 AWG Gauge Amplifier Wiring Kit

• 125 Watts RMS x 4 @ 4 ohm
• 250 Watts RMS x 4 @ 2 ohm
• 500 Watts RMS x 2 @ 4 ohm, bridged
• Total RMS Power: 1,000 Watts
• Built-in High and Low Pass Filters
• Heavy Duty Aluminum Alloy Heatsink
• Belva BAK44 4 Gauge Amplifier Wiring Kit w/ 4-Channel RCA Cable

• 125 Watts RMS x 4 @ 4 ohm
• 250 Watts RMS x 4 @ 2 ohm
• 500 Watts RMS x 2 @ 4 ohm, bridged
• Total RMS Power: 1,000 Watts
• Built-in High and Low Pass Filters
• Heavy Duty Aluminum Alloy Heatsink
• Belva BAK44 4 Gauge Amplifier Wiring Kit w/ 4-Channel RCA Cable

JBL PX300.4

770W Max, Power Series 4-Channel Amplifier

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770W Max, Power Series 4-Channel Amplifier

300W Power Series 4-Channel Amplifier • 123.5W x 4 chan. @ 4 Ohm • 169W x 4 chan. @ 2 Ohm • MOSFET power supply • die-cast aluminum chassis • DBO filter • preamp outputs • CEA-2006 compliant

300W Power Series 4-Channel Amplifier • 123.5W x 4 chan. @ 4 Ohm • 169W x 4 chan. @ 2 Ohm • MOSFET power supply • die-cast aluminum chassis • DBO filter • preamp outputs • CEA-2006 compliant

Kenwood KAC-6407 - Open Box, Very Good Condition Used

550W Max (130W RMS) Class-AB 4-Channel 2-Ohm Stable Amplifier

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550W Max (130W RMS) Class-AB 4-Channel 2-Ohm Stable Amplifier

• 40 Watts RMS x 4 @ 4 ohm
• 60 Watts RMS x 2 @ 2 ohm
• 130 Watts RMS x 2 @ 4 ohmS
• Total Max Power: 550 Watts
• CTA-2006 Compliant/
• Aluminum Heatsink
• 13-3/16"W x 8-1/16"L x 2-3/16"H

• 40 Watts RMS x 4 @ 4 ohm
• 60 Watts RMS x 2 @ 2 ohm
• 130 Watts RMS x 2 @ 4 ohmS
• Total Max Power: 550 Watts
• CTA-2006 Compliant/
• Aluminum Heatsink
• 13-3/16"W x 8-1/16"L x 2-3/16"H

Autotek ATX1200.4

1200W Max 4-Channel Class AB ATX Series Amplifier

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1200W Max 4-Channel Class AB ATX Series Amplifier

ATX Series 4-Channel Class A/B Car Amplifier • 1200 Watts Max • 300 Watts x 4 Chan @ 2 Ohm • Military Grade PCB Design • 0 to +12 dB Bass Boost • Speaker-Level Inputs • Preamp RCA Outputs

ATX Series 4-Channel Class A/B Car Amplifier • 1200 Watts Max • 300 Watts x 4 Chan @ 2 Ohm • Military Grade PCB Design • 0 to +12 dB Bass Boost • Speaker-Level Inputs • Preamp RCA Outputs

Soundstream T4.1500L

1,500W Tarantula Series 4-Channel Class A/B Car Amplifier

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1,500W Tarantula Series 4-Channel Class A/B Car Amplifier

• RMS: 120 watts x 4 channels @ 4 ohm, 180 watts x 4 channels @ 2 ohm, Bridged, 4 ohm: 360W x 2 channels
• Total Peak Power: 1500W
• 4 or 2 Channel Operation
• Fuse Rating: 40A x 2
• Signal to Noise Ration: >104 dB
• Total Harmonic Distortion (THD): <0.05%

• RMS: 120 watts x 4 channels @ 4 ohm, 180 watts x 4 channels @ 2 ohm, Bridged, 4 ohm: 360W x 2 channels
• Total Peak Power: 1500W
• 4 or 2 Channel Operation
• Fuse Rating: 40A x 2
• Signal to Noise Ration: >104 dB
• Total Harmonic Distortion (THD): <0.05%

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640 watt Total Power MOSFET Power Amplifier • Cast Aluminum Heat Sink w/Sandblast Finish • Blue Logo Triangle Power Indicator

640 watt Total Power MOSFET Power Amplifier • Cast Aluminum Heat Sink w/Sandblast Finish • Blue Logo Triangle Power Indicator

SPL FX4-840

840W Max, FX Series 4-Channel Amplifier

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840W Max, FX Series 4-Channel Amplifier

• 840W Max, FX Series 4-Channel Amplifier • 4 ohm: 80 watts x 4 chan • 2 ohm: 95 watts x 4 chan • Bridged, @ 4 ohm: 190 watts x 2 chan • S/N Ratio: 98dB • THD: 0.02%

• 840W Max, FX Series 4-Channel Amplifier • 4 ohm: 80 watts x 4 chan • 2 ohm: 95 watts x 4 chan • Bridged, @ 4 ohm: 190 watts x 2 chan • S/N Ratio: 98dB • THD: 0.02%

Crunch PZi 175.4

1000W Max, PowerZone 4-Channel Amplifier (PZi175.4)

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1000W Max, PowerZone 4-Channel Amplifier (PZi175.4)

PowerZone Series-Channel Class AB Car Amplifier • 175W x 4 chan. @ 4 ohm • 250W x 4 chan. @ 2 ohm • 500W x 2 chan. Max • PZi. MOSFET Pulse Wave Modulated Power Supply For Instant Maxx Current Output • Silver Preamp RCA outputs

PowerZone Series-Channel Class AB Car Amplifier • 175W x 4 chan. @ 4 ohm • 250W x 4 chan. @ 2 ohm • 500W x 2 chan. Max • PZi. MOSFET Pulse Wave Modulated Power Supply For Instant Maxx Current Output • Silver Preamp RCA outputs

Jensen JPA460

720W Max, 4-Channel Amplifier (JPA-460)

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720W Max, 4-Channel Amplifier (JPA-460)

720W 4-Channel Amplifier • 60W x 4 chan. @ 4 Ohm • 90W x 4 chan. @ 2 Ohm • MOSFET power supply • die cast heatsink • narrow Q design • protection circuitry • pass thru RCA outputs • side mounted preamp controls

720W 4-Channel Amplifier • 60W x 4 chan. @ 4 Ohm • 90W x 4 chan. @ 2 Ohm • MOSFET power supply • die cast heatsink • narrow Q design • protection circuitry • pass thru RCA outputs • side mounted preamp controls

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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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