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.
Go to item page Right Arrow Icon of Right Arrow

4-Channel Amplifier • 960 watts and CEA-2006 Compliant • 2-Ohm Stereo Stable • Built-in Infrasonic Filter • 3 (2-speed) fans • MOSFET power supply • Large secondary capacitors

4-Channel Amplifier • 960 watts and CEA-2006 Compliant • 2-Ohm Stereo Stable • Built-in Infrasonic Filter • 3 (2-speed) fans • MOSFET power supply • Large secondary capacitors

Boss GT1280

2000W Max, RiOT GT Series 4-Channel Amplifier (GT-1280)

Go to item page Right Arrow Icon of Right Arrow

2000W Max, RiOT GT Series 4-Channel Amplifier (GT-1280)

4-Channel Bridgeable Amplifier • 500W x 4 @ 2 ohm peak power • 1000W x 2 @ 4 ohm bridged • trimode operation • MOSFET power supply • line outputs • level control • bass boost switch

4-Channel Bridgeable Amplifier • 500W x 4 @ 2 ohm peak power • 1000W x 2 @ 4 ohm bridged • trimode operation • MOSFET power supply • line outputs • level control • bass boost switch

Kole Audio TRAX4-1200 (TRAX 4-1200)

1200W Max, TRAX Series 4-Channel Amplifier

Go to item page Right Arrow Icon of Right Arrow

1200W Max, TRAX Series 4-Channel Amplifier

TRAX Series • 4-Channel Car Amplifier • 100 Watts x4 @ 4 Ohm • 125 Watts x4 @ 2 Ohm • 280 Watts x2 4 Ohm • 1200 Watts Max • Tri-Mode Capable • LED Indicators • Midnight Blue Anodized Finish • MOSFET Power Supply •

TRAX Series • 4-Channel Car Amplifier • 100 Watts x4 @ 4 Ohm • 125 Watts x4 @ 2 Ohm • 280 Watts x2 4 Ohm • 1200 Watts Max • Tri-Mode Capable • LED Indicators • Midnight Blue Anodized Finish • MOSFET Power Supply •

Hifonics Zeus ZXi150.4

1200W RMS, Zeus Series 4-Channel Amplifier (ZXi 150.4)

Go to item page Right Arrow Icon of Right Arrow

1200W RMS, Zeus Series 4-Channel Amplifier (ZXi 150.4)

Zeus Series 4 Channel Class A/B Car Amplifier • 300W x 4-Chan. @ 2 Ohm • 150W x 4-Chan. @ 4 Ohm • Wired HFR-3 Remote • 4-Way System Protection • MOSFET Power Supply • Silver-Plated RCA Inputs

Zeus Series 4 Channel Class A/B Car Amplifier • 300W x 4-Chan. @ 2 Ohm • 150W x 4-Chan. @ 4 Ohm • Wired HFR-3 Remote • 4-Way System Protection • MOSFET Power Supply • Silver-Plated RCA Inputs

Power Acoustik OVN4-1600

1600W Max, 4-Channel Gothic Series Amplifier

Go to item page Right Arrow Icon of Right Arrow

1600W Max, 4-Channel Gothic Series Amplifier

Gothic Series 4-Channel Car Amplifier • 150W x 4 Chan. @ 4 Ohm • 180W x 4 Chan. @ 2 Ohm • Bridged 360W x 2 Chan. @ 4 Ohm • Pulse Width Modulation Circuitry • Tri-Mode Capable • LED Power Indicators • Level Inputs

Gothic Series 4-Channel Car Amplifier • 150W x 4 Chan. @ 4 Ohm • 180W x 4 Chan. @ 2 Ohm • Bridged 360W x 2 Chan. @ 4 Ohm • Pulse Width Modulation Circuitry • Tri-Mode Capable • LED Power Indicators • Level Inputs

MB Quart REF4.50

400W RMS Reference Series 4-Channel Amplifier

Go to item page Right Arrow Icon of Right Arrow

400W RMS Reference Series 4-Channel Amplifier

Reference Series 4-Channel Class A/B Car Amplifier • 400W RMS • 100W x 4-Chan @ 2 Ohm • Variable Bass Boost • Soft Start Turn-on • 4-Way System Protection Circuitry • Preamp RCA Outputs • MOSFET Power Supply

Reference Series 4-Channel Class A/B Car Amplifier • 400W RMS • 100W x 4-Chan @ 2 Ohm • Variable Bass Boost • Soft Start Turn-on • 4-Way System Protection Circuitry • Preamp RCA Outputs • MOSFET Power Supply

Earthquake Sound PH2200W/4

2200W 4-Channel Class A/B Power House Series Car Amplifier

Go to item page Right Arrow Icon of Right Arrow

2200W 4-Channel Class A/B Power House Series Car Amplifier

• 125W x 4-Chan. @ 4 ohm
• 250W x 2 Chan. @ 4 ohm
• 500W x 2 Chan. @ 4 ohm Bridged
• Preamp RCA Outputs
• Low-Level RCA Inputs
• Variable Low-Pass Filter
• 2-Way System Protection

• 125W x 4-Chan. @ 4 ohm
• 250W x 2 Chan. @ 4 ohm
• 500W x 2 Chan. @ 4 ohm Bridged
• Preamp RCA Outputs
• Low-Level RCA Inputs
• Variable Low-Pass Filter
• 2-Way System Protection

Power Acoustik OVN4-1200

1200W Max, 4-Channel Gothic Series Amplifier

Go to item page Right Arrow Icon of Right Arrow

1200W Max, 4-Channel Gothic Series Amplifier

Gothic Series 4-Channel Car Amplifier • 100W x 4 Chan. @ 4 Ohm • 125W x 4 Chan. @ 2 Ohm • Bridged 250W x 2 Chan. @ 4 Ohm • Pulse Width Modulation Circuitry • Tri-Mode Capable • LED Power Indicators • Level Inputs

Gothic Series 4-Channel Car Amplifier • 100W x 4 Chan. @ 4 Ohm • 125W x 4 Chan. @ 2 Ohm • Bridged 250W x 2 Chan. @ 4 Ohm • Pulse Width Modulation Circuitry • Tri-Mode Capable • LED Power Indicators • Level Inputs

Lanzar MAXP4260

2000W Max, Max Pro Series 4-Channel Class AB High Power MOSFET Amplifier with Remote Bass Control

Go to item page Right Arrow Icon of Right Arrow

2000W Max, Max Pro Series 4-Channel Class AB High Power MOSFET Amplifier with Remote Bass Control

Pro Series 4-Channel Class A/B Car Amplifier • 2000W MAX • 500W x 4-Chan. @ 4 Ohm • Variable Bass Boost • Preamp RCA Outputs • 4-Way System Protection Circuitry • Soft Start Anti-Thump Turn-On • Blue Illuminated Logo

Pro Series 4-Channel Class A/B Car Amplifier • 2000W MAX • 500W x 4-Chan. @ 4 Ohm • Variable Bass Boost • Preamp RCA Outputs • 4-Way System Protection Circuitry • Soft Start Anti-Thump Turn-On • Blue Illuminated Logo

Massive Audio BX4

960W 4-Channel Class D BX Series High Performance Car Amplifier

Go to item page Right Arrow Icon of Right Arrow

960W 4-Channel Class D BX Series High Performance Car Amplifier

• 120W x 4-Chan. @ 4 ohm
• 240W x 4-Chan. @ 2 ohm
• 480W x 2 Chan. @ 4 ohm
• 3-Way System Protection
• 4/3/2 Channel Operation
• 8 Gauge Power and Ground Inputs
• Selectable LPF or HPF

• 120W x 4-Chan. @ 4 ohm
• 240W x 4-Chan. @ 2 ohm
• 480W x 2 Chan. @ 4 ohm
• 3-Way System Protection
• 4/3/2 Channel Operation
• 8 Gauge Power and Ground Inputs
• Selectable LPF or HPF

New Hifonics Zeus ZXX-2000.4 2000 Watt RMS 4-Channel Car Audio Amplifier+Amp Kit

2000W Peak Zeus Series Class-A/B 4-Channel 2-Ohm Stable Amplifier (ZXX-20004) Package

Go to item page Right Arrow Icon of Right Arrow

2000W Peak Zeus Series Class-A/B 4-Channel 2-Ohm Stable Amplifier (ZXX-20004) Package

• 250 Watts Peak x 4 @ 4 ohm
• 500 Watts Peak x 4 @ 2 ohm
• Total Peak Power: 2,000 Watts
• High- and Low-Pass Filterse
• Variable Bass Boost
• Aluminum Heatsink
• 22" W x 10" L x 6" H

• 250 Watts Peak x 4 @ 4 ohm
• 500 Watts Peak x 4 @ 2 ohm
• Total Peak Power: 2,000 Watts
• High- and Low-Pass Filterse
• Variable Bass Boost
• Aluminum Heatsink
• 22" W x 10" L x 6" H

Soundstream PCX4.540 R/B

540W RMS, 4-Channel Picasso Series Amplifier

Go to item page Right Arrow Icon of Right Arrow

540W RMS, 4-Channel Picasso Series Amplifier

Picasso Series 4-Channel Class AB Car Amplifier • 80W x 4 Chan. @ 4 ohm • 135W x 4 chan. @ 2 ohm • 540 Watts Total • Bi-linear Selectable • Tuned Bass EQ • Platinum-Plated Contacts • End Caps Included

Picasso Series 4-Channel Class AB Car Amplifier • 80W x 4 Chan. @ 4 ohm • 135W x 4 chan. @ 2 ohm • 540 Watts Total • Bi-linear Selectable • Tuned Bass EQ • Platinum-Plated Contacts • End Caps Included

SPL AX4-720

720W Max, E-FLUX Plasma Series 4-Channel Amplifier

Go to item page Right Arrow Icon of Right Arrow

720W Max, E-FLUX Plasma Series 4-Channel Amplifier

SPL AX4-720 720W Max, E-FLUX Plasma Series 4-Channel Amplifier • Full Mosfet Power Supply • 4 ohm: 85 watts x 4 chan. • 2 ohm: 100 watts x 4 chan. • Bridged, @ 2 ohm: 200 watts x 2 chan.

SPL AX4-720 720W Max, E-FLUX Plasma Series 4-Channel Amplifier • Full Mosfet Power Supply • 4 ohm: 85 watts x 4 chan. • 2 ohm: 100 watts x 4 chan. • Bridged, @ 2 ohm: 200 watts x 2 chan.

Planet Audio TRQ4.800

800W 4 Channel Torque Series Class A/B Car Amplifier

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

Go to item page Right Arrow Icon of Right Arrow

800W 4 Channel Torque Series Class A/B Car Amplifier

• RMS Power: 75W x 4 @ 4 ohm, 200W x 4 @ 2 ohm, 400W x 2 @ 4 ohm Bridged
• Total Peak Power: 800W
• Variable Low-Pass Filter (50-250 Hz, 24 dB/octave)
• Dimensions: 9.5"W x 10.19"L x 2.125"H

Promo Savings Icon

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

• RMS Power: 75W x 4 @ 4 ohm, 200W x 4 @ 2 ohm, 400W x 2 @ 4 ohm Bridged
• Total Peak Power: 800W
• Variable Low-Pass Filter (50-250 Hz, 24 dB/octave)
• Dimensions: 9.5"W x 10.19"L x 2.125"H

Boston Acoustics GT-42

4-Channel High Current Amplifier

Go to item page Right Arrow Icon of Right Arrow

4-Channel High Current Amplifier

4-Channel High Current Amplifier • 150W RMS x 4 @ 2 • 450W RMS x 2 @ 2 • Adjustable Mounting Feet • Screw-Down Security Cover • 2 Ohm Mono Stable • Continuously Variable Crossover and Q

4-Channel High Current Amplifier • 150W RMS x 4 @ 2 • 450W RMS x 2 @ 2 • Adjustable Mounting Feet • Screw-Down Security Cover • 2 Ohm Mono Stable • Continuously Variable Crossover and Q

Lanzar VBP411

1200W Max, Vibe Pro Series 4-Channel High Power MOSFET Amplifier

Go to item page Right Arrow Icon of Right Arrow

1200W Max, Vibe Pro Series 4-Channel High Power MOSFET Amplifier

Vibe Pro Series 4-Channel Car Amplifier • 150W x 4-Chan. @ 4 Ohm • 270W x 4-Chan. @ 2 Ohm • Preamp RCA Outputs To Daisy Chain Multiple Amps • 2-Way System Protection Circuitry • DC To DC Switching Power Supply

Vibe Pro Series 4-Channel Car Amplifier • 150W x 4-Chan. @ 4 Ohm • 270W x 4-Chan. @ 2 Ohm • Preamp RCA Outputs To Daisy Chain Multiple Amps • 2-Way System Protection Circuitry • DC To DC Switching Power Supply

Sony XM-GS400

700W Max Compact 4 Channel GS Series Amplifier with High Level Inputs, Crossover Filters and a 3-year warranty!

Go to item page Right Arrow Icon of Right Arrow

700W Max Compact 4 Channel GS Series Amplifier with High Level Inputs, Crossover Filters and a 3-year warranty!

• 70 Watts RMS x 4 @ 4 ohm
• 80 Watts RMS x 4 @ 2 ohm
• 160 Watts RMS x 2 @ 4 ohm, Bridged
• Total Peak Power: 700 Watts
• 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

• 70 Watts RMS x 4 @ 4 ohm
• 80 Watts RMS x 4 @ 2 ohm
• 160 Watts RMS x 2 @ 4 ohm, Bridged
• Total Peak Power: 700 Watts
• 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

Audiobahn A4601T

840W Max, 4-Channel Class A/B Amplifier

Go to item page Right Arrow Icon of Right Arrow

840W Max, 4-Channel Class A/B Amplifier

4-Channel Class A/B Amplifier with Cobalt Blue Illumination and chrome finish • 840W Max Power Output • 420W RMS @ 2 ohm • 300W RMS @ 4 ohm • Digital LCD Voltmeter Display • Cooling Fan • Preamp Outputs

4-Channel Class A/B Amplifier with Cobalt Blue Illumination and chrome finish • 840W Max Power Output • 420W RMS @ 2 ohm • 300W RMS @ 4 ohm • Digital LCD Voltmeter Display • Cooling Fan • Preamp Outputs

Cadence QR80.4

510 W RMS QR Series 2 ohm Stable 4-Channel Class-D Amplifier

Go to item page Right Arrow Icon of Right Arrow

510 W RMS QR Series 2 ohm Stable 4-Channel Class-D Amplifier

• 80 Watts RMS x 4 @ 4 ohm
• 130 Watts RMS x 4 @ 2 ohm
•255 Watts RMS x 2 @ 4 ohm, Bridged
• Total Peak Power: 510 Watts
• High and Low Pass Filters
• Aluminum Heatsink
• Dimensions: 6.3" W x 9.21" L x 2.05" H

• 80 Watts RMS x 4 @ 4 ohm
• 130 Watts RMS x 4 @ 2 ohm
•255 Watts RMS x 2 @ 4 ohm, Bridged
• Total Peak Power: 510 Watts
• High and Low Pass Filters
• Aluminum Heatsink
• Dimensions: 6.3" W x 9.21" L x 2.05" H

Soundstream P4.260

260W 4-Channel Picasso Series Class A/B Amplifier

Go to item page Right Arrow Icon of Right Arrow

260W 4-Channel Picasso Series Class A/B Amplifier

• RMS Power: 45W x 4 @ 4 ohm, 65W x 4 @ 2 ohm, 130W x 2 @ 4 ohm, Bridged
• Total Peak Power: 260W
• Dash Mount Remote Bass Level Control Included
• Dimensions: 8.25"W x 11"L x 2"H

• RMS Power: 45W x 4 @ 4 ohm, 65W x 4 @ 2 ohm, 130W x 2 @ 4 ohm, Bridged
• Total Peak Power: 260W
• Dash Mount Remote Bass Level Control Included
• Dimensions: 8.25"W x 11"L x 2"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

    2003 Maserati Spyder

    2014 Audi A5

    2003 Volkswagen Jetta

    1997 Subaru Outback

    2003 Chevrolet Astro

    1993 Dodge Caravan

    2003 MINI Cooper

    2020 Mazda CX-9

    2008 Mazda 5

    2004 Honda Element

    Vehicle
    Store
    Delete

    2004 Harley Davidson FXSTD/I Softail Deuce

    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.