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.

Autotek MM4020.4 (MM40204)

4000W Max Mean Machine Series 2 ohm Stable 4 Channel Class-A/B Amplifier

Go to item page Right Arrow Icon of Right Arrow

4000W Max Mean Machine Series 2 ohm Stable 4 Channel Class-A/B Amplifier

• 500 Watts Max x 4 @ 4 ohm
• 1000 Watts Max x 4 @ 2 ohm
• 2000 Watts Max x 2 @ 4 ohm
• Total Peak Power: 4000 Watts
• High and Low Pass Filters
• 0-9dB Bass Boost
• Aluminum Heatsink

• 500 Watts Max x 4 @ 4 ohm
• 1000 Watts Max x 4 @ 2 ohm
• 2000 Watts Max x 2 @ 4 ohm
• Total Peak Power: 4000 Watts
• High and Low Pass Filters
• 0-9dB Bass Boost
• Aluminum Heatsink

Rockford Fosgate Power T800-4AD

800W 4-Channel Class AD Power Series Car Amplifier

Go to item page Right Arrow Icon of Right Arrow

800W 4-Channel Class AD Power Series Car Amplifier

• 4 ohm: 150 watts x 4-Chan.
• 2 ohm: 150 watts x 4-Chan.
• 1 ohm: 200 watts x 4-Chan.
• Bridged, 4 ohm: 300 watts x 2 chan.
• Bridged, 2 ohm: 400 watts x 2 chan.

• 4 ohm: 150 watts x 4-Chan.
• 2 ohm: 150 watts x 4-Chan.
• 1 ohm: 200 watts x 4-Chan.
• Bridged, 4 ohm: 300 watts x 2 chan.
• Bridged, 2 ohm: 400 watts x 2 chan.

TOTAL Mobile Audio T320.4 Open Box

(Open Box) 320W Max, 4-Channel Full-Range Amplifier (MPN #99309)

Go to item page Right Arrow Icon of Right Arrow

(Open Box) 320W Max, 4-Channel Full-Range Amplifier (MPN #99309)

TMA 4-Channel Class a/B Car Amplifier • 320 Watts Max • 80 Watts X 4 Channels @ 2 Ohm • 60 Watts X 4 Channels @ 4 Ohm • Linear Complementary Bi-Polar Design • High Speaker-Level Inputs • System Protection Circuitry

TMA 4-Channel Class a/B Car Amplifier • 320 Watts Max • 80 Watts X 4 Channels @ 2 Ohm • 60 Watts X 4 Channels @ 4 Ohm • Linear Complementary Bi-Polar Design • High Speaker-Level Inputs • System Protection Circuitry

EXCLUSIVE

Sony 4-Channel Amplifier with Four FREE JBL 6-1/2" Speakers

Sony XM-GS400 700W Max Compact 4 Channel GS Series Amplifier + JBL GTO628 6-1/2" 2-Way Grand Touring (GTO) Series Coaxial Speakers

Go to item page Right Arrow Icon of Right Arrow

Sony XM-GS400 700W Max Compact 4 Channel GS Series Amplifier + JBL GTO628 6-1/2" 2-Way Grand Touring (GTO) Series Coaxial Speakers

• 80 Watts RMS x 4 @ 2 ohm
• FEATURE 2
• Mylar / Titanium Composite Dome Tweeter
• Mounting Depth: 2-1/16"
• Plus One Cone Material
• 2 Ohm Impedance
• CEA-2006 Compliant
• 4, 3 or 2 channel stereo operation
• Signal to Noise Ration: 93 dBA
• Speaker-level (high-level) inputs with Auto Turn-on

• 80 Watts RMS x 4 @ 2 ohm
• FEATURE 2
• Mylar / Titanium Composite Dome Tweeter
• Mounting Depth: 2-1/16"
• Plus One Cone Material
• 2 Ohm Impedance
• CEA-2006 Compliant
• 4, 3 or 2 channel stereo operation
• Signal to Noise Ration: 93 dBA
• Speaker-level (high-level) inputs with Auto Turn-on

JL Audio G4500

1000W Max, 4-Channel G-Series Amplifier

Go to item page Right Arrow Icon of Right Arrow

1000W Max, 4-Channel G-Series Amplifier

JL Audio G-Series 4-Channel Class A/B Car Amplifier • 80W x 4 Chan. @ 4 ohm • 125W x 4 Chan. @ 2 ohm • Bridged 250W x 2 Chan. @ 4 ohm • 400 watts x 2 Chan. Max • Selectable Bass Boost • Preamp RCA Outputs

JL Audio G-Series 4-Channel Class A/B Car Amplifier • 80W x 4 Chan. @ 4 ohm • 125W x 4 Chan. @ 2 ohm • Bridged 250W x 2 Chan. @ 4 ohm • 400 watts x 2 Chan. Max • Selectable Bass Boost • Preamp RCA Outputs

Go to item page Right Arrow Icon of Right Arrow

4-Channel Amplifier

300 Watt 4 Channel Amplifier • 75W RMS x 2 Chan. @ 2 Ohm • HPF(15Hz-1.5kHz)/LPF(50Hz-5kHz) • RCA Outputs • 4 Gauge Power Connectors • 10 Gauge Speaker Connectors

300 Watt 4 Channel Amplifier • 75W RMS x 2 Chan. @ 2 Ohm • HPF(15Hz-1.5kHz)/LPF(50Hz-5kHz) • RCA Outputs • 4 Gauge Power Connectors • 10 Gauge Speaker Connectors

Go to item page Right Arrow Icon of Right Arrow

5-Channel amplifier -- control your entire system • 2 ohm power output: 100 watts x 4 + 300 watts x 1 • 4 ohm power output: 50 watts x 4 + 150 watts x 1

5-Channel amplifier -- control your entire system • 2 ohm power output: 100 watts x 4 + 300 watts x 1 • 4 ohm power output: 50 watts x 4 + 150 watts x 1

Alphasonik PMZ12005A

5-Channel Class A/B Amplifier

Go to item page Right Arrow Icon of Right Arrow

5-Channel Class A/B Amplifier

5-Channel Class A/B Bipolar Power Amplifier • 75W x 4 chan. + 200W x 1 chan. @ 4 Ohm • 120W x 4 chan. + 320W x 1 chan. @ 2 Ohm • 150W x 2 chan. @ 4 Ohm • 320W x 1 chan. @ 4 Ohm

5-Channel Class A/B Bipolar Power Amplifier • 75W x 4 chan. + 200W x 1 chan. @ 4 Ohm • 120W x 4 chan. + 320W x 1 chan. @ 2 Ohm • 150W x 2 chan. @ 4 Ohm • 320W x 1 chan. @ 4 Ohm

Autotek MM75.4 R/B

500W RMS Mean Machine Series 4-Channel Amplifier

Go to item page Right Arrow Icon of Right Arrow

500W RMS Mean Machine Series 4-Channel Amplifier

Mean Machine Series Monoblock Car Amplifier • 75 Watts x 4 Chan @ 4 Ohm • 125 Watts x 4 Chan @ 2 Ohm • MOSFET Power Supply • LED Power Indicators • TCID (Twin Coil Isolation Design)

Mean Machine Series Monoblock Car Amplifier • 75 Watts x 4 Chan @ 4 Ohm • 125 Watts x 4 Chan @ 2 Ohm • MOSFET Power Supply • LED Power Indicators • TCID (Twin Coil Isolation Design)

Infinity Reference 7541a

4-Channel Amplifier

Go to item page Right Arrow Icon of Right Arrow

4-Channel Amplifier

656 watts max 4-channel amplifier • Optional bass remote • 4 ohm: 278 watts RMS x 2 chan.• RCA and speaker level inputs • Bass boost 0 - 12dB

656 watts max 4-channel amplifier • Optional bass remote • 4 ohm: 278 watts RMS x 2 chan.• RCA and speaker level inputs • Bass boost 0 - 12dB

RCA RC200.4A

800W Max, 4-Channel Amplifier

Go to item page Right Arrow Icon of Right Arrow

800W Max, 4-Channel Amplifier

800W Max 4-Channel Amplifier • 100W x 4 chan. @ 4 Ohm • tri-mode capable • RCA and speaker level inputs • MOSFET power supply • soft turn-on circuit

800W Max 4-Channel Amplifier • 100W x 4 chan. @ 4 Ohm • tri-mode capable • RCA and speaker level inputs • MOSFET power supply • soft turn-on circuit

(2) Alpine BBXF1200

600 Watt Max 4-Channel Class A/B Car Audio Amplifier

Go to item page Right Arrow Icon of Right Arrow

600 Watt Max 4-Channel Class A/B Car Audio Amplifier

• 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

• 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

Soundstream BXA4-1800

1800W Peak (800W RMS) Bass Xtreme Series 4-Channel Class A/B Amplifier

Go to item page Right Arrow Icon of Right Arrow

1800W Peak (800W RMS) Bass Xtreme Series 4-Channel Class A/B Amplifier

• 150 watts x 4 channel @ 4 ohm
• 200 watts x 4 channel @ 2 ohm
• Bridged: 400 watts x 2 channel @ 4 ohm
• Total RMS Power: 800 watts
• Class A/B 2 ohm Stable 4-Channel Amplifier

• 150 watts x 4 channel @ 4 ohm
• 200 watts x 4 channel @ 2 ohm
• Bridged: 400 watts x 2 channel @ 4 ohm
• Total RMS Power: 800 watts
• Class A/B 2 ohm Stable 4-Channel Amplifier

Go to item page Right Arrow Icon of Right Arrow

400 Watt 4-channel A/B bipolar power amplifier • 100W x 4 @ 2 ohm RMS • 60W x 4 @4 ohm RMS • Bass boost • High/Low crossover

400 Watt 4-channel A/B bipolar power amplifier • 100W x 4 @ 2 ohm RMS • 60W x 4 @4 ohm RMS • Bass boost • High/Low crossover

MTX Thunder Elite 404 (TE404)

4-Channel Thunder Elite Amplifier

Go to item page Right Arrow Icon of Right Arrow

4-Channel Thunder Elite Amplifier

Thunder Elite Series 4-Channel Class AB Car Amplifier • 65W x 4 chan. @ 4 ohm • 100W x 4 chan. @ 2 ohm • 800W Max • Semi Unregulated MOSFET • 4/3/2/1 channel operation • Overload and thermal protection

Thunder Elite Series 4-Channel Class AB Car Amplifier • 65W x 4 chan. @ 4 ohm • 100W x 4 chan. @ 2 ohm • 800W Max • Semi Unregulated MOSFET • 4/3/2/1 channel operation • Overload and thermal protection

Image Dynamics SQ800.4 (Open Box Complete)

1600W Peak (800W RMS) SQ Series Full-Range Class-D 4-Channel Amplifier

Go to item page Right Arrow Icon of Right Arrow

1600W Peak (800W RMS) SQ Series Full-Range Class-D 4-Channel Amplifier

• 100 Watts RMS x 4 @ 4 ohm
• 200 Watts RMS x 4 @ 2 ohm
• Total Peak Power: 1600 Watts
• CEA-2006 Compliant/Preamp Outputs/LPF
• Variable Bass Boost: 0 to +18 dB bass boost at 40 Hz
• Heavy duty aluminum alloy heat-sink for extreme heat dissipation

• 100 Watts RMS x 4 @ 4 ohm
• 200 Watts RMS x 4 @ 2 ohm
• Total Peak Power: 1600 Watts
• CEA-2006 Compliant/Preamp Outputs/LPF
• Variable Bass Boost: 0 to +18 dB bass boost at 40 Hz
• Heavy duty aluminum alloy heat-sink for extreme heat dissipation

Crunch PZ1800.4

1800W PowerZone Series 4-Channel Car Audio Amplifier

Go to item page Right Arrow Icon of Right Arrow

1800W PowerZone Series 4-Channel Car Audio Amplifier

• 1800 Watts Max
• 400 Watts x 4-Chan. @ 2 Ohm
• 4-Way System Protection
• Selectable Highpass/Lowpass Filters

• 1800 Watts Max
• 400 Watts x 4-Chan. @ 2 Ohm
• 4-Way System Protection
• Selectable Highpass/Lowpass Filters

Sound Storm SSL F4.400 Open Box

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

Go to item page Right Arrow Icon of Right Arrow

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

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

Autotek MMA1500.4 Open Box Complete

1500W 4-Channel Mean Machine Series Car Amplifier

Go to item page Right Arrow Icon of Right Arrow

1500W 4-Channel Mean Machine Series Car Amplifier

• FEATURE 1
• FEATURE 2
• FEATURE 3
• FEATURE 4
• FEATURE 5
• FEATURE 6
• FEATURE 7

• FEATURE 1
• FEATURE 2
• FEATURE 3
• FEATURE 4
• FEATURE 5
• FEATURE 6
• FEATURE 7

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

    1993 Dodge Caravan

    2012 Acura RDX

    1981 GMC G2500

    2002 Pontiac Sunfire

    1981 Chrysler LeBaron

    2021 Ford Expedition Max

    2020 Mazda CX-9

    2022 Audi Q8

    2015 Ford Transit Cargo

    1968 Ford Bronco

    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.