Garage
Shop

Discontinued 4-Channel Amplifiers

Loading...
Filters

We are sorry, no available results!

Shop the Category

filter-icon Filters & Sort
You are currently viewing discontinued products.

Hifonics Brutus BRX616.4 Amplifier + (4) Boss Audio 6.5" Speakers + Speaker Wire

640 Hifonics 4-Channel Amplifier + (4) B653 Boss Audio Coaxial Speakers + Belva BBSW127

Go to item page Right Arrow Icon of Right Arrow

640 Hifonics 4-Channel Amplifier + (4) B653 Boss Audio Coaxial Speakers + Belva BBSW127

• RMS Power: 80W x 4 @ 4 ohm, 160W x 2 @ 2 ohm
• Total Peak Power: 640W
• Variable High and Low Pass Filters
• Dimensions: 9.8" W x 14.7" L x 2.4" H

• RMS Power: 80W x 4 @ 4 ohm, 160W x 2 @ 2 ohm
• Total Peak Power: 640W
• Variable High and Low Pass Filters
• Dimensions: 9.8" W x 14.7" L x 2.4" H

Lanzar VIBE422N

2000W 4-Channel Vibe Series Class AB Car Amplifier w/ Remote Bass Knob

Go to item page Right Arrow Icon of Right Arrow

2000W 4-Channel Vibe Series Class AB Car Amplifier w/ Remote Bass Knob

• 4 ohm: 250 watts x 4-Chan.
• 2 ohm: 400 watts x 4-Chan.
• Bridged, 4 ohm: 1000 x 2 chan.
• Pulse Width Modulated MOSFET Power Supply
• LED Power and Protect Indicators

• 4 ohm: 250 watts x 4-Chan.
• 2 ohm: 400 watts x 4-Chan.
• Bridged, 4 ohm: 1000 x 2 chan.
• Pulse Width Modulated MOSFET Power Supply
• LED Power and Protect Indicators

TIS Audio T510PK Open Box

Loaded 10" Subwoofer and Enclosure

Go to item page Right Arrow Icon of Right Arrow

Loaded 10" Subwoofer and Enclosure

10" Subwoofer loaded in a computer optimized enclosure• Peak: 500 watts

10" Subwoofer loaded in a computer optimized enclosure• Peak: 500 watts

Lanzar HTG447

2000W Class A/B 4-Channel Heritage Series Car Amplifier

Go to item page Right Arrow Icon of Right Arrow

2000W Class A/B 4-Channel Heritage Series Car Amplifier

• 250W RMS x 4-Channels @ 4 ohm
• 350W RMS x 4-Channels @ 2 ohm
• Electronic Crossover Network
• Power and Protect LED Indicators
• 3-Way Protection System Circuitry

• 250W RMS x 4-Channels @ 4 ohm
• 350W RMS x 4-Channels @ 2 ohm
• Electronic Crossover Network
• Power and Protect LED Indicators
• 3-Way Protection System Circuitry

Phoenix Gold R5.0:4

Octane-R 5.0:4 4-Channel Amplifier

Go to item page Right Arrow Icon of Right Arrow

Octane-R 5.0:4 4-Channel Amplifier

4 channel power amplifier • Variable high - and low-pass filters (40 - 400Hz @ 12 dB/octave) • Blue LED logo illumination and optional blue neon attachments • Preamp inputs • Requires 8-gauge power and ground leads — wiring and hardware not included with amplifier • Fuses: 25A x 2

4 channel power amplifier • Variable high - and low-pass filters (40 - 400Hz @ 12 dB/octave) • Blue LED logo illumination and optional blue neon attachments • Preamp inputs • Requires 8-gauge power and ground leads — wiring and hardware not included with amplifier • Fuses: 25A x 2

Go to item page Right Arrow Icon of Right Arrow

80 watts RMS x 2 bridged • selectable high-pass/low-pass crossovers

80 watts RMS x 2 bridged • selectable high-pass/low-pass crossovers

RE Audio DTS-500.4

400W, 4-Channel Class A/B DTS Series Car Amplifier

Go to item page Right Arrow Icon of Right Arrow

400W, 4-Channel Class A/B DTS Series Car Amplifier

DTS Series 4-Channel Class A/B Car Amplifier • 400W Dynamic • 2-Way System Protection • Brushed Aluminum Alloy Convection Cooled Heatsink • Variable High/Low-Pass Filter • Selectable Bass Boost

DTS Series 4-Channel Class A/B Car Amplifier • 400W Dynamic • 2-Way System Protection • Brushed Aluminum Alloy Convection Cooled Heatsink • Variable High/Low-Pass Filter • Selectable Bass Boost

AudioFonics ADF-2841

600W Max, 4-Channel Amplifier

Go to item page Right Arrow Icon of Right Arrow

600W Max, 4-Channel Amplifier

ADF Series 4-Channel Class AB Car Amplifier • 40W x 4 chan. @ 4 ohm • 60W x 4 chan. @ 2 ohm • 120W x 2 chan. @ 4 ohm • 150W x 4 chan. Max • MOSFET power supply • Oversized capacitor tanks • Preamp RCA outputs

ADF Series 4-Channel Class AB Car Amplifier • 40W x 4 chan. @ 4 ohm • 60W x 4 chan. @ 2 ohm • 120W x 2 chan. @ 4 ohm • 150W x 4 chan. Max • MOSFET power supply • Oversized capacitor tanks • Preamp RCA outputs

Kicker ZX350.4 (11ZX350.4)

350W RMS 4-Channel ZX Series Amplifier (ZX3504)

Go to item page Right Arrow Icon of Right Arrow

350W RMS 4-Channel ZX Series Amplifier (ZX3504)

ZX Series 4-Channel Class AB Car Amplifier • 60W x 4 chan. @ 4 ohm • 90W x 4 chan. @ 2 ohm • 175W x 2 chan. @ 4 ohm • 350W x 2 chan. Max • Balanced differential inputs

ZX Series 4-Channel Class AB Car Amplifier • 60W x 4 chan. @ 4 ohm • 90W x 4 chan. @ 2 ohm • 175W x 2 chan. @ 4 ohm • 350W x 2 chan. Max • Balanced differential inputs

Soundstream XTA720.4

720 watts, 4-Channel Xstream Series Amplifier XTA 720.4

Go to item page Right Arrow Icon of Right Arrow

720 watts, 4-Channel Xstream Series Amplifier XTA 720.4

720W RMS 4 channel Xstream Series • 180W x 4 channel power output at 2 ohm • 90W x 4 channel at 4 ohm • Bass EQ Control • Drive Delay II • Selectable X-Over HPF / Full / LPF

720W RMS 4 channel Xstream Series • 180W x 4 channel power output at 2 ohm • 90W x 4 channel at 4 ohm • Bass EQ Control • Drive Delay II • Selectable X-Over HPF / Full / LPF

Soundstream PCA4.400

400W RMS, 4-Channel Picasso Series Amplifier

Go to item page Right Arrow Icon of Right Arrow

400W RMS, 4-Channel Picasso Series 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

Kicker 08ZX200.4

200W RMS, 4-Channel ZX Series Amplifier (ZX200.4, 08ZX2004, ZX2004)

Go to item page Right Arrow Icon of Right Arrow

200W RMS, 4-Channel ZX Series Amplifier (ZX200.4, 08ZX2004, ZX2004)

ZX Series 4-Channel Class AB Car Amplifier • 35W x 4 chan. @ 4 ohm • 50W x 4 chan. @ 2 ohm • 100W x 2 chan. @ 4 ohm • 200W x 4 chan. Max • Balanced differential inputs make KICKER ZX Amplifiers compatible with any factory radios

ZX Series 4-Channel Class AB Car Amplifier • 35W x 4 chan. @ 4 ohm • 50W x 4 chan. @ 2 ohm • 100W x 2 chan. @ 4 ohm • 200W x 4 chan. Max • Balanced differential inputs make KICKER ZX Amplifiers compatible with any factory radios

Hifonics Zeus ZRX616.4

600 Watt 4 Channel Zeus Series Class AB Amplifier

Go to item page Right Arrow Icon of Right Arrow

600 Watt 4 Channel Zeus Series Class AB Amplifier

• Max Power: 250W x 4 @ 4 ohm, 500W x 4 @ 2 ohm
• Total Peak Power: 2000W
• Variable Low and High Pass Filters
• Dimensions: 10" W x 12.6" L x 2.4" H

• Max Power: 250W x 4 @ 4 ohm, 500W x 4 @ 2 ohm
• Total Peak Power: 2000W
• Variable Low and High Pass Filters
• Dimensions: 10" W x 12.6" L x 2.4" H

Phoenix Gold SX2 800.4 (SX2800.4)

SX Series 2 800W RMS Class D 4-Channel Amplifier

Go to item page Right Arrow Icon of Right Arrow

SX Series 2 800W RMS Class D 4-Channel Amplifier

• Class D SX Series 4 Channel Amplifier
• Total RMS Power : 800w
• Audio Precision Quality Control Verification
• Tri-light LED amplifier status indicators
• Onboard Thermal Management
• Power/Ground Wire Size: 4GA
• Bass Boost: @ 40Hz 0 to +6dB

• Class D SX Series 4 Channel Amplifier
• Total RMS Power : 800w
• Audio Precision Quality Control Verification
• Tri-light LED amplifier status indicators
• Onboard Thermal Management
• Power/Ground Wire Size: 4GA
• Bass Boost: @ 40Hz 0 to +6dB

Precision Power PPI A1000.4

1000W Atom Series Class D 4-Channel Ultra-Compact Car Amplifier

Go to item page Right Arrow Icon of Right Arrow

1000W Atom Series Class D 4-Channel Ultra-Compact Car Amplifier

• RMS: 90W x 4 @ 4 ohm, 125W x 4 @ 2 ohm, 250W x 2 Bridged @ 4 ohm
• Total Peak Power: 1000W
• CEA-2006 Compliant/Preamp Outputs/LPF
• Variable 12dB High Pass, Low Pass, & Subsonic Crossovers

Promo Savings Icon

• RMS: 90W x 4 @ 4 ohm, 125W x 4 @ 2 ohm, 250W x 2 Bridged @ 4 ohm
• Total Peak Power: 1000W
• CEA-2006 Compliant/Preamp Outputs/LPF
• Variable 12dB High Pass, Low Pass, & Subsonic Crossovers

Sound Storm SSL F4.400

400W RMS, Force Series 4-Channel Amplifier (SoundStorm F4400)

Go to item page Right Arrow Icon of Right Arrow

400W RMS, Force Series 4-Channel Amplifier (SoundStorm F4400)

• Force Series 4-Channel Amplifier
• 50 Watts x 4 Chan. @ 4 Ohm
• 400 Watts RMS
• Speaker level inputs
• LED Power Indicators
• Speaker-Level Inputs
• Chrome-Plated RCA Level Inputs And Screw Terminals

• Force Series 4-Channel Amplifier
• 50 Watts x 4 Chan. @ 4 Ohm
• 400 Watts RMS
• Speaker level inputs
• LED Power Indicators
• Speaker-Level Inputs
• Chrome-Plated RCA Level Inputs And Screw Terminals

Alpine KTP-445U Open Box Complete

Universal Class D 4-Channel Head Unit Power Pack for Use with all Aftermarket & Factory Receivers

Go to item page Right Arrow Icon of Right Arrow

Universal Class D 4-Channel Head Unit Power Pack for Use with all Aftermarket & Factory Receivers

• Item Condition: Open Box Complete
• RMS Power: 45W x 4-Chan. @ 4 Ohm
• Adjustable Gain Switch
• Plug-and-Play
• CEA-2006 Compliant

• Item Condition: Open Box Complete
• RMS Power: 45W x 4-Chan. @ 4 Ohm
• Adjustable Gain Switch
• Plug-and-Play
• CEA-2006 Compliant

Hifonics TX4405

Hifonics Titan Series 4-Channel Class A/B Car Amplifier

Go to item page Right Arrow Icon of Right Arrow

Hifonics Titan Series 4-Channel Class A/B Car Amplifier

Titan Series 4-Channel Class A/B Amplifier • 110 Watts x 4 Chan @ 2 Ohm • 55 Watts x 4 Chan @ 4 Ohm • High-Speed MOSFET Output Devices • 4-Way Protection • 18dB Bass Boost • Power and Protection LEDs

Titan Series 4-Channel Class A/B Amplifier • 110 Watts x 4 Chan @ 2 Ohm • 55 Watts x 4 Chan @ 4 Ohm • High-Speed MOSFET Output Devices • 4-Way Protection • 18dB Bass Boost • Power and Protection LEDs

MTX Audio JackHammer JH404

800W Max, 4-Channel Jack Hammer Series Amplifier

Go to item page Right Arrow Icon of Right Arrow

800W Max, 4-Channel Jack Hammer Series Amplifier

JackHammer Series 4-Channel Class AB Car Amplifier • 50W x 4 chan. @ 4 ohm • 100W x 4 chan. @ 2 ohm • 200W x 2 chan. @ 4 ohm • 200W x 4 chan. Max • Patented Pure N-Channel technology • Smart Engage circuitry • Stackable configuration • Built-in active fan cooling

JackHammer Series 4-Channel Class AB Car Amplifier • 50W x 4 chan. @ 4 ohm • 100W x 4 chan. @ 2 ohm • 200W x 2 chan. @ 4 ohm • 200W x 4 chan. Max • Patented Pure N-Channel technology • Smart Engage circuitry • Stackable configuration • Built-in active fan cooling

Kenwood KAC-6406

500W Peak (260W RMS) CEA-2006 Compliant Class-AB Bridgeable 4-Channel 2-Ohm Stable Amplifier

Go to item page Right Arrow Icon of Right Arrow

500W Peak (260W RMS) CEA-2006 Compliant Class-AB Bridgeable 4-Channel 2-Ohm Stable Amplifier

• RMS Power: 40W x 4 @ 4 ohm, 60W x 4 @ 2 ohm
• Total Peak Power: 250W
• CEA-2006 Compliant
• 7-7/8"W x 12-3/8"L x 2-3/16"H

• RMS Power: 40W x 4 @ 4 ohm, 60W x 4 @ 2 ohm
• Total Peak Power: 250W
• CEA-2006 Compliant
• 7-7/8"W x 12-3/8"L x 2-3/16"H

Items per page: 20 40 60

    Clear all

    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.
    why-shoping-with-sonic

    We love people and we're ready to help you! See what separates us from our competition.

    Take advantage of our VIP rewards like 10% back on your purchases, free 2-day shipping, extended warranties, and free returns! Gain access to all of these rewards without any membership fees.
    Get great discounted (and possibly FREE) installation accessories with most car stereo purchases. This includes dash kits, wiring harnesses and antenna adapters that you will need to properly install your new car stereo.
    We are an Authorized Dealer for all the brands we sell, including the most premium brands in car and marine audio such as Hertz, JL Audio, NVX, Rockford Fosgate, Kicker, Alpine, Kenwood and many more.
    Shop Deals and get up to 30% off premium brands! Shop Now! We are always looking out for the best products and deals to offer our customers. Don’t pay too much by shopping elsewhere!
    We have information on brands, gear, and more for you to explore! Check out our YouTube Channel for helpful how-to videos, product reviews, and Q&As. For a more detailed look, also visit our Learning Center!
    Our trained experts are here to assist you! They are just a phone call or click away to help you get the right gear for you and your vehicle!
    Why Shop With Us?
    Save up to 10 different vehicles in your garage
    Vehicle
    Store
    Delete

    2015 Dodge Viper

    2018 Dodge Durango

    2005 Chrysler PT Cruiser

    2023 Ford Edge

    1979 MG Midget

    1995 Mazda Millenia

    2022 MINI Cooper

    1999 Subaru Impreza

    2008 Nissan Altima

    1987 Ford Taurus

    Vehicle
    Store
    Delete

    2018 Can-Am Defender HD8

    Add vehicle Clear all vehicles
    Where to find vehicle info
    Are you sure you want to clear your garage?
    This action cannot be undone. Confirm
    This category was not designed for products.
    If you continue, you will be redirected to a category customized for your vehicle. Continue
    Loading...
    Identify your vehicle and submodel details
    • Owner's manual
    • Vehicle's insurance card
    • Vehicle registration
    • Vehicle produced after 2005: Inside driver's side door
    • Vehicle produced before 2005: Rear passenger doorjamb, glove box, center console, or engine compartment
    Car Info Side Door Icon
    Vehicle Registration Icon
    Vehicle Insurance Icon

    Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

    • You see only parts engineered for your exact vehicle
    • You avoid incompatible radios, speakers, or wiring
    • Installation is smoother, faster, and frustration-free
    • You get the correct accessories the first time

    Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.