Garage
Shop

Discontinued Boss 4-Channel Amplifiers

Boss is a premier manufacturer of 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

100W x 4 RMS • Tri Mode Operation • Remote Subwoofer Level Control • Bass Boost

100W x 4 RMS • Tri Mode Operation • Remote Subwoofer Level Control • Bass Boost

Boss PH4.700

2800W, 4 Channel Phantom Series Amplifier

Go to item page Right Arrow Icon of Right Arrow

2800W, 4 Channel Phantom Series Amplifier

Phantom Series 4-Channel Class A/B Car Amplifier • 280W x 4 chan. @ 4 ohm • 700W x 4 chan. Max • MOSFET PWM Power Supply • Includes Bass Remote • Trimode Operation • Thermal and Speaker Short Protection

Phantom Series 4-Channel Class A/B Car Amplifier • 280W x 4 chan. @ 4 ohm • 700W x 4 chan. Max • MOSFET PWM Power Supply • Includes Bass Remote • Trimode Operation • Thermal and Speaker Short Protection

Boss CER250.4

500W 4-Channel Class AB Chaos Epic Series Stereo Bridgeable Amp

Go to item page Right Arrow Icon of Right Arrow

500W 4-Channel Class AB Chaos Epic Series Stereo Bridgeable Amp

• 130W x 4-Chan. @ 4 ohm
• 250W x 2 Chan. @ 4 ohm
• 3-Way System Protection
• 4/3/2/1 Channel Operation
• 4 Gauge Power and Ground Inputs
• 2 Ohm Stable Stereo Operation with Power Output Increase

• 130W x 4-Chan. @ 4 ohm
• 250W x 2 Chan. @ 4 ohm
• 3-Way System Protection
• 4/3/2/1 Channel Operation
• 4 Gauge Power and Ground Inputs
• 2 Ohm Stable Stereo Operation with Power Output Increase

Boss CE2404

2400W Chaos Epic Series 4-Channel Power Amplifier w/ Line and Speaker Level Inputs

Go to item page Right Arrow Icon of Right Arrow

2400W Chaos Epic Series 4-Channel Power Amplifier w/ Line and Speaker Level Inputs

Chaos Epic Series 4-Channel Power Amplifier • 1200W RMS • 2400W Max • MOSFET Power Supply • LED Power and Protect Indicators • Variable Input Gain Control • 2-Way System Protection Circuitry • Heavy Duty Black Anodized Aluminum Heatsink

Chaos Epic Series 4-Channel Power Amplifier • 1200W RMS • 2400W Max • MOSFET Power Supply • LED Power and Protect Indicators • Variable Input Gain Control • 2-Way System Protection Circuitry • Heavy Duty Black Anodized Aluminum Heatsink

Boss PH4.500

2000W 4-Channel MOSFET Power Phantom Series Class AB Car Amplifier with Remote Subwoofer Level Control

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

Go to item page Right Arrow Icon of Right Arrow

2000W 4-Channel MOSFET Power Phantom Series Class AB Car Amplifier with Remote Subwoofer Level Control

• 2000W Max
• MOSFET Power Supply
• Remote Subwoofer Level Control Included
• Bass Boost
• Thermal and Speaker Short Protection
• Black Anodized Heatsink
• Input Gain Control

Promo Savings Icon

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

• 2000W Max
• MOSFET Power Supply
• Remote Subwoofer Level Control Included
• Bass Boost
• Thermal and Speaker Short Protection
• Black Anodized Heatsink
• Input Gain Control

Boss CXX2404

1200W Class AB 4-Channel Chaos EXXtreme Series Amplifier

Go to item page Right Arrow Icon of Right Arrow

1200W Class AB 4-Channel Chaos EXXtreme Series Amplifier

• 300W x 4-Chan. @ 4 ohm
• 600W x 2 Chan. @ 4 ohm
• 3-Way System Protection
• 4/3/2/1 Channel Operation
• 4 Gauge Power and Ground Inputs
• 2 Ohm Stable Stereo Operation with Power Output Increase

• 300W x 4-Chan. @ 4 ohm
• 600W x 2 Chan. @ 4 ohm
• 3-Way System Protection
• 4/3/2/1 Channel Operation
• 4 Gauge Power and Ground Inputs
• 2 Ohm Stable Stereo Operation with Power Output Increase

Go to item page Right Arrow Icon of Right Arrow

1000 watts, 4-Channel RIOT Series amplifier • Bass Boost • Bridgeable • Remote sub level control

1000 watts, 4-Channel RIOT Series amplifier • Bass Boost • Bridgeable • Remote sub level control

Boss CH4300

1200W 4-Channel Chaos Series Class AB Full Range Amplifier

Go to item page Right Arrow Icon of Right Arrow

1200W 4-Channel Chaos Series Class AB Full Range Amplifier

• RMS: 150W x 4 @ 4 ohm
• Total Peak Power: 1200W
• Nickel-plated RCA low level inputs
• 3-way protection circuitry (thermal, overload, and speaker short protection)
• Wired remote bass level control included
• 11.00" W x 11.98" L x 2.87" H

• RMS: 150W x 4 @ 4 ohm
• Total Peak Power: 1200W
• Nickel-plated RCA low level inputs
• 3-way protection circuitry (thermal, overload, and speaker short protection)
• Wired remote bass level control included
• 11.00" W x 11.98" L x 2.87" H

Boss CH350

400W Max, Chaos Series 4-Channel Amplifier (CH-350)

Go to item page Right Arrow Icon of Right Arrow

400W Max, Chaos Series 4-Channel Amplifier (CH-350)

4-Channel Amplifier • 40W x 4 chan. RMS • line and speaker level inputs • variable gain control • MOSFET power supply • aluminum heatsink • power and protection LEDs

4-Channel Amplifier • 40W x 4 chan. RMS • line and speaker level inputs • variable gain control • MOSFET power supply • aluminum heatsink • power and protection LEDs

Go to item page Right Arrow Icon of Right Arrow

1200W Bridgeable 4-channel amplifier • Remote subwoofer control • 18dB Bass Boost • Variable high and low pass crossovers

1200W Bridgeable 4-channel amplifier • Remote subwoofer control • 18dB Bass Boost • Variable high and low pass crossovers

Go to item page Right Arrow Icon of Right Arrow

Discontinued Model - Try Ripper or RIOT Series

Discontinued Model - Try Ripper or RIOT Series

Boss Car Speaker Chaos Sound Package

400W 4-Channel Boss CE404 Class AB Amplifier + 6.5" & 6x9" Chaos Series Coaxial Speakers

Go to item page Right Arrow Icon of Right Arrow

400W 4-Channel Boss CE404 Class AB Amplifier + 6.5" & 6x9" Chaos Series Coaxial Speakers

• 4-Channel 400W Max Chaos Epic Series Amplifier
• Chaos Series 6" x 9" and 6.5" Speakers
• Red Metallic Poly Injection Cones and Rubber Surrounds
• Polymide Dome Tweeters
• Speaker Grills Included

• 4-Channel 400W Max Chaos Epic Series Amplifier
• Chaos Series 6" x 9" and 6.5" Speakers
• Red Metallic Poly Injection Cones and Rubber Surrounds
• Polymide Dome Tweeters
• Speaker Grills Included

Boss CX650

1000W Max 4-Channel Chaos Exxtreme Series Amplifier

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

Go to item page Right Arrow Icon of Right Arrow

1000W Max 4-Channel Chaos Exxtreme Series Amplifier

Chaos Exxtreme Series 4-Channel Class AB Car Amplifier • 100W x 4 chan. @ 4 ohm • 250W x 4 chan. Max • Pulse width modulated (PWM) MOSFET power supply • Bridgeable operation • Speaker-level inputs

Promo Savings Icon

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

Chaos Exxtreme Series 4-Channel Class AB Car Amplifier • 100W x 4 chan. @ 4 ohm • 250W x 4 chan. Max • Pulse width modulated (PWM) MOSFET power supply • Bridgeable operation • Speaker-level inputs

Boss R1004 (OPEN BOX INCOMPLETE)

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

Go to item page Right Arrow Icon of Right Arrow

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

• RMS: 50W x 4 @ 4 ohm, 100W x 2 @ 2 ohm
• Total Peak Power: 400W
• Variable high-pass Filter
• Dimensions: 9"W x 7-3/4"L x 2"H

• RMS: 50W x 4 @ 4 ohm, 100W x 2 @ 2 ohm
• Total Peak Power: 400W
• Variable high-pass Filter
• Dimensions: 9"W x 7-3/4"L x 2"H

Boss PH2KD.4

2000W Max 4-Channel Phantom Series Car Amplifier

Go to item page Right Arrow Icon of Right Arrow

2000W Max 4-Channel Phantom Series Car Amplifier

4-Channel Phantom Series Car Amplifier • • 4 ohm: 200 watts x 4 chan. • 500 watts x 4 chan. • Bridged,4 ohm: 1000 watts x 2 chan. • Pulse Width Modulated MOSFET power supply

4-Channel Phantom Series Car Amplifier • • 4 ohm: 200 watts x 4 chan. • 500 watts x 4 chan. • Bridged,4 ohm: 1000 watts x 2 chan. • Pulse Width Modulated MOSFET power supply

Boss IMP1000.4

1000W Max 4-Channel Impact Series Car Amplifier

Go to item page Right Arrow Icon of Right Arrow

1000W Max 4-Channel Impact Series Car Amplifier

4-Channel Impact Series Car Amplifier • 4 ohm: 100 watts x 1 chan. • 2 ohm: 250 watts x 4 chan. • Bridged, 4 ohm: 500 watts x 2 chan. • Pulse Width Modulated MOSFET Power Supply • 2 or Mono Channel Operation

4-Channel Impact Series Car Amplifier • 4 ohm: 100 watts x 1 chan. • 2 ohm: 250 watts x 4 chan. • Bridged, 4 ohm: 500 watts x 2 chan. • Pulse Width Modulated MOSFET Power Supply • 2 or Mono Channel Operation

Boss CER450.4

1000W 4-Channel Class AB Chaos Epic Series Stereo Bridgeable Amp

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

Go to item page Right Arrow Icon of Right Arrow

1000W 4-Channel Class AB Chaos Epic Series Stereo Bridgeable Amp

• 240W x 4-Chan. @ 4 ohm
• 500W x 2 Chan. @ 4 ohm
• 3-Way System Protection
• 4/3/2/1 Channel Operation
• 4 Gauge Power and Ground Inputs
• 2 Ohm Stable Stereo Operation with Power Output Increase

Promo Savings Icon

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

• 240W x 4-Chan. @ 4 ohm
• 500W x 2 Chan. @ 4 ohm
• 3-Way System Protection
• 4/3/2/1 Channel Operation
• 4 Gauge Power and Ground Inputs
• 2 Ohm Stable Stereo Operation with Power Output Increase

Boss CE404- OPEN BOX 1

400W Chaos Epic Series 4-Channel Power Amplifier with Line and Speaker Level Inputs

Go to item page Right Arrow Icon of Right Arrow

400W Chaos Epic Series 4-Channel Power Amplifier with Line and Speaker Level Inputs

Chaos Epic Series 4-Channel Power Amplifier • 200W RMS • 400W Max • MOSFET Power Supply • LED Power and Protect Indicators • Variable Input Gain Control • 2-Way System Protection Circuitry • Heavy Duty Black Anodized Aluminum Heatsink

Chaos Epic Series 4-Channel Power Amplifier • 200W RMS • 400W Max • MOSFET Power Supply • LED Power and Protect Indicators • Variable Input Gain Control • 2-Way System Protection Circuitry • Heavy Duty Black Anodized Aluminum Heatsink

Boss NX3000.4

3000W Max, Onyx Series 4-Channel Power Amplifier

Go to item page Right Arrow Icon of Right Arrow

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

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

Items per page: 20 40 60

    Clear all

    Boss 4-Channel Amplifiers Information

    A 4 channel car amplifier from Boss will provide your vehicle with the power it requires. These amps can operate four channels and Boss is a leader in amplification solutions. Power your speakers with a Boss 4-channel amplifier for a great all-around sound.
    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

    2012 Dodge Challenger

    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.