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  1. Home
  2. Boss Store
  3. Discontinued Boss Car Audio & Electronics
  4. Discontinued Boss Car Amplifiers
  5. Discontinued Boss 4-Channel Amplifiers

Discontinued Boss 4-Channel Amplifiers

Boss is a premier manufacturer of 4-channel amplifiers.

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Product Type
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Number of Channels
Each channel on an amplifier will power one speaker using a positive and negative cable. There are various types of amplifiers, each designed to power a certain number of speakers. Monoblock amplifiers, also known as single channel, are designed to power one or more subwoofers. These amplifiers often have very high power ratings. On the other hand, multi-channel amplifiers power multiple speakers, usually at lower power ratings. 2-Channel and 4-Channel amplifiers can power car speakers or low powered subwoofers. Occasionally you might see a 5 or 6-channel amplifier that can power speakers and subwoofers at the same time. The most common setup is a monoblock amp to run subwoofers and a 4-channel amp to run door speakers. Check out our Knowledge Base for more information.
Amplifier Key Features
Amplifiers can offer a diverse array of features. If you select more than one feature, then you will view amplifiers that have ALL features selected. These include speaker-level inputs that facilitate seamless integration with factory audio systems, Bluetooth connectivity suitable for ATV/UTV or Classic vehicle setups, built-in DSPs that provide enhanced control over your audio signal, and a host of other functionalities to explore.
Amplifier Class

An amplifier increases the power of the signal being fed to it by taking energy from its power supply and matching the signal but increasing its amplitude. Amplifiers use many different methods for converting these electrical signals and have been categorized into classes.

Class A/B: Greater than 50% of the input signal is amplified while the other percentage is “off”. These amplifiers have a small amount of current flowing through the output transistors all the time which almost eliminates crossover distortion. Class A/B has great sound quality but is not as efficient as class D. These amps are most commonly used to drive speakers.

Class D: Also known as switching amplifiers, class D amps have output transistors that are completely turned “on” or “off”. This means that when the transistors are on, there is almost no voltage across them but when they are off there is significant voltage but no current flowing through it which makes these amplifiers very efficient at the cost of sound quality. These amps are most commonly used to drive subwoofers.

Other Classes: You may see classes such as GH, bD, X, FD, etc. by some manufactures. These amplifiers tend to be either class A/B, D or a hybrid of the two but with improvements to their designs that can make them more efficient or offer better sound quality.
Total RMS Power Output
Total RMS power is measured by multiplying RMS power per channel by the number of channels, and is calculated at the lowest level of operating impedance.

RMS power is the amount of continuous power, measured in watts, that an amplifier produces is called RMS power. The higher the RMS figure, the louder and cleaner your music sounds.

The RMS output figure is much more accurate than the peak rating when comparing products.
Total Peak Power Output
The total peak power output is measured as the wattage per channel multiplied by the number of channels, and is calculated at the lowest level of operating impedance.

It is measured during a brief musical burst, such as a sudden drum accent. Some manufacturers display peak power ratings on the face of their products to increase the appeal.

The RMS power rating is more accurate, and we recommend using it for product comparison.
Series
Many brands group their products into series or lines of products to help customers know the level of quality (good, better, best for example). You can filter by series and the brand using our guided browsing.
Minimum Impedance Unbridged
The lowest impedance the amplifier will handle when it is not bridged.
Minimum Impedance Bridged
The lowest impedance the amplifier will handle when it is bridged.
Remote bass/level controller
If the amp comes with a bass/gain remote you will be able to control the level of your bass from your dashboard. Typically bass remotes also include a 16-20 ft. wire for installation.
Sonic Certified Amplifier
Sonic Certified amplifiers have been tested by the experts at Sonic Electronix to meet or exceed the wattage ratings provided by the manufacturer. If this is marked as Yes, then you can trust the wattage ratings. If marked as No, then we have tested the amplifier and it did not meet the advertised wattage ratings. If marked as Not Tested, then the Sonic Electronix experts have not yet been able to test the amp.
Preamp Outputs
Many amplifiers are equipped with RCA preamp outputs which pass the original music signal from the source to additional amplifiers. This is known as daisy chaining because the source connects to the first amp, and the first amp connects to the second amp, etc. The advantage to daisy chaining is you only need one 2-channel RCA cable to transfer the signal from the head-unit to the amplifier, and then one additional cable for each amp being daisy chained.
Built-in Crossover

A crossover is a type of filtering system that permits only certain frequencies to play. A Low-Pass (LP) crossover allows only frequencies below its setting to get through which is good in the case of some subwoofers. A High-Pass(HP) filter allows frequencies above its setting to pass through, this is normally used on speakers.

When a crossover is set to FULL it means no filtering is added and the full frequency spectrum is allowed through the amplifier. Filtering is important because feeding a speaker frequencies it cannot reproduce effectively creates distortion.

Amp Bluetooth Connectivity
This feature will tell you if the amplifier has the capability to connect to a Bluetooth device.
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You are currently viewing discontinued products.

Boss FNX2000

2000W 4-Channel Onyx Series Class AB Full Range Amplifier

FNX2000 big DISCONTINUED
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Boss FNX2000

2000W 4-Channel Onyx Series Class AB Full Range Amplifier

• RMS: 200W x 4 @ 4 ohm
• Total Peak Power: 2000W
• Nickel-plated RCA low level inputs/outputs
• 3-way protection circuitry (thermal, overload, and speaker short protection)
• Wired remote bass level control included
• 10.00" W x 15.63" L x 2.25" H

• RMS: 200W x 4 @ 4 ohm
• Total Peak Power: 2000W
• Nickel-plated RCA low level inputs/outputs
• 3-way protection circuitry (thermal, overload, and speaker short protection)
• Wired remote bass level control included
• 10.00" W x 15.63" L x 2.25" H

Boss CX800 R/B

1600W Max 4-Channel Chaos Exxtreme Series Amplifier

CX800 big DISCONTINUED
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Boss CX800 R/B

1600W Max 4-Channel Chaos Exxtreme Series Amplifier

Chaos Exxtreme 4-Channel Class AB Car Amplifier • 150W x 4 chan. @ 4 ohm • 400W x 4 chan Max • Speaker-level inputs with soft turn-on • Thermal and short circuit protection circuitry

Chaos Exxtreme 4-Channel Class AB Car Amplifier • 150W x 4 chan. @ 4 ohm • 400W x 4 chan Max • Speaker-level inputs with soft turn-on • Thermal and short circuit protection circuitry

Boss CE1404

1400W Chaos Epic Series 4-Channel Power Amplifier with Line and Speaker Level Inputs

CE1404 big DISCONTINUED
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Boss CE1404

1400W Chaos Epic Series 4-Channel Power Amplifier with Line and Speaker Level Inputs

Chaos Epic Series 4-Channel Power Amplifier • 680W RMS • 1400W Max • MOSFET Power Supply • LED Power and Protect Indicators • Variable Input Gain Control • 2-Way System Protection Circuitry • Heavy Duty Black Anodized Aluminum Heatsink

1

Chaos Epic Series 4-Channel Power Amplifier • 680W RMS • 1400W 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 CX1000 R/B

2000W Max 4-Channel Chaos Exxtreme Series Amplifier (CX-1000)

CX1000 big DISCONTINUED
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Boss CX1000 R/B

2000W Max 4-Channel Chaos Exxtreme Series Amplifier (CX-1000)

Chaos Exxtreme Series 4-Channel Class AB Car Amplifier • 200W x 4 chan. @ 4 ohm • 500W x 4 chan. Max • Pulse width modulated (PWM) MOSFET power supply • Speaker-level inputs • Soft power-on/off

Chaos Exxtreme Series 4-Channel Class AB Car Amplifier • 200W x 4 chan. @ 4 ohm • 500W x 4 chan. Max • Pulse width modulated (PWM) MOSFET power supply • Speaker-level inputs • Soft power-on/off

One Pair of Boss PG693 w/ BT Amplifier, Speaker Boxes and Power Supply

6x9" Phantom Ghost Series Speakers + 4-Channel Bluetooth Micro Amplifier with Controller + 6" x 9" Wedge Box + Regulated Power Supply

PG693_2-6X9_PANDA_BOX_MC900B_PS14KX big DISCONTINUED
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One Pair of Boss PG693 w/ BT Amplifier, Speaker Boxes and Power Supply

6x9" Phantom Ghost Series Speakers + 4-Channel Bluetooth Micro Amplifier with Controller + 6" x 9" Wedge Box + Regulated Power Supply

• Peak Power: 275 watts each
• RMS Power: 137.5 watts each
• 2" Mylar Dome Midrange
• 3/4" Piezo Dome Tweeter
• Mounting Depth: 3-1/10"
• Black Poly Injection Cone
• 4-Channel Bluetooth Micro Marine Amplifie
• 6 Button External Multifunction Controller
• Quick connect Molex power harnes
• 3-way protection circuitry (thermal, overload, and speaker short protection)

56

• Peak Power: 275 watts each
• RMS Power: 137.5 watts each
• 2" Mylar Dome Midrange
• 3/4" Piezo Dome Tweeter
• Mounting Depth: 3-1/10"
• Black Poly Injection Cone
• 4-Channel Bluetooth Micro Marine Amplifie
• 6 Button External Multifunction Controller
• Quick connect Molex power harnes
• 3-way protection circuitry (thermal, overload, and speaker short protection)

Boss D550.4 R/B

2200W Max, 4-Channel Diablo Series Amplifier (D5504)

D550.4 big DISCONTINUED
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Boss D550.4 R/B

2200W Max, 4-Channel Diablo Series Amplifier (D5504)

Diablo Series 4-Channel Class AB Car Amplifier • 230W x 4 chan. @ 4 ohm • 550W x 2 chan. Max • MOSFET power supply • LED power and protection indicators • Variable high/low pass crossovers

Diablo Series 4-Channel Class AB Car Amplifier • 230W x 4 chan. @ 4 ohm • 550W x 2 chan. Max • MOSFET power supply • LED power and protection indicators • Variable high/low pass crossovers

Boss CX600 R/B

800W Max 4-Channel Chaos Exxtreme Series Amplifier (CX-600)

CX600 big DISCONTINUED
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Boss CX600 R/B

800W Max 4-Channel Chaos Exxtreme Series Amplifier (CX-600)

Chaos Exxtreme 4-Channel Class AB Car Amplifier • 75W x 4 chan. @ 4 ohm • 200W x 4 chan Max • Speaker-level inputs with soft turn-on • Thermal and short circuit protection circuitry

Chaos Exxtreme 4-Channel Class AB Car Amplifier • 75W x 4 chan. @ 4 ohm • 200W x 4 chan Max • Speaker-level inputs with soft turn-on • Thermal and short circuit protection circuitry

Boss R1004

400W Peak (75W RMS) Riot Series Class-AB 4-Channel Amplifier

R1004-2 big DISCONTINUED
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Boss R1004

400W Peak (75W RMS) Riot Series Class-AB 4-Channel Amplifier

• 38 watts x 4 channel @ 4 ohm
• 75 watts x 4 channel @ 2 ohm
• Total RMS Power: 75 watts
• Class A/B 2 ohm Stable 4-Channel Amplifier

15

• 38 watts x 4 channel @ 4 ohm
• 75 watts x 4 channel @ 2 ohm
• Total RMS Power: 75 watts
• Class A/B 2 ohm Stable 4-Channel Amplifier

Boss AR1600.4 4 Channel Amplifier w/ Complete 4 AWG Amp Kit

1600W 4-Channel ARMOR Series Class A/B Car Amplifier + Amp Kit

AR1600.4_BAK44 big DISCONTINUED
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Boss AR1600.4 4 Channel Amplifier w/ Complete 4 AWG Amp Kit

1600W 4-Channel ARMOR Series Class A/B Car Amplifier + Amp Kit

• 4 ohm: 160 watts x 4 chan.
• 2 ohm: 400 watts x 4 chan.
• Bridged, 4 ohm: 800 watts x 2 chan.
• Pulse Width Modulated MOSFET Power Supply
• Complete 4 Gauge 4-Channel Amplifier Installation Kit

• 4 ohm: 160 watts x 4 chan.
• 2 ohm: 400 watts x 4 chan.
• Bridged, 4 ohm: 800 watts x 2 chan.
• Pulse Width Modulated MOSFET Power Supply
• Complete 4 Gauge 4-Channel Amplifier Installation Kit

BOSS AUDIO AR1600.4 1600W 4 Channel Car Amplifier Amp+Remote+ 6.5"/6x9" Speakers

BOSS AUDIO AR1600.4 1600W 4 Channel Car Amplifier Amp+Remote+ 6.5"/6x9" Speakers

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BOSS AUDIO AR1600.4 1600W 4 Channel Car Amplifier Amp+Remote+ 6.5"/6x9" Speakers

BOSS AUDIO AR1600.4 1600W 4 Channel Car Amplifier Amp+Remote+ 6.5"/6x9" Speakers

• 4 ohm: 160 watts x 4 chan.
• 2 ohm: 400 watts x 4 chan.
• Bridged, 4 ohm: 800 watts x 2 chan.
• Pulse Width Modulated MOSFET Power Supply

84

• 4 ohm: 160 watts x 4 chan.
• 2 ohm: 400 watts x 4 chan.
• Bridged, 4 ohm: 800 watts x 2 chan.
• Pulse Width Modulated MOSFET Power Supply

Boss Audio 2600W 4 Channel Car Audio Amplifier Power LED Amp+Remote (2 Pack)

Boss Audio 2600W 4 Channel Car Audio Amplifier Power LED Amp+Remote (2 Pack)

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Boss Audio 2600W 4 Channel Car Audio Amplifier Power LED Amp+Remote (2 Pack)

Boss Audio 2600W 4 Channel Car Audio Amplifier Power LED Amp+Remote (2 Pack)

• RMS: 325W x 4 @ 4 ohm
• Total Peak Power: 2600W
• Gold-plated RCA low level and high level inputs
• 3-way protection circuitry (thermal, overload, and speaker short protection)
• Wired remote bass level control included
• 10.31" W x 17.00" L x 2.25" H

5

• RMS: 325W x 4 @ 4 ohm
• Total Peak Power: 2600W
• Gold-plated RCA low level and high level inputs
• 3-way protection circuitry (thermal, overload, and speaker short protection)
• Wired remote bass level control included
• 10.31" W x 17.00" L x 2.25" H

Boss PF2200

2200W 4-Channel Phantom Series Full Range Class AB Amplifier

PF2200 big DISCONTINUED
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Boss PF2200

2200W 4-Channel Phantom Series Full Range Class AB Amplifier

• RMS: 275W x 4 @ 4 ohm
• Total Peak Power: 2200W
• Gold-plated RCA low level and high level inputs
• 3-way protection circuitry (thermal, overload, and speaker short protection)
• Wired remote bass level control included
• 10.31" W x 15.50" L x 2.25" H

1

• RMS: 275W x 4 @ 4 ohm
• Total Peak Power: 2200W
• Gold-plated RCA low level and high level inputs
• 3-way protection circuitry (thermal, overload, and speaker short protection)
• Wired remote bass level control included
• 10.31" W x 15.50" L x 2.25" H

Boss PF2600

2600W 4-Channel Phantom Series Full Range Class AB Amplifier

PF2600 big DISCONTINUED
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Boss PF2600

2600W 4-Channel Phantom Series Full Range Class AB Amplifier

• RMS: 325W x 4 @ 4 ohm
• Total Peak Power: 2600W
• Gold-plated RCA low level and high level inputs
• 3-way protection circuitry (thermal, overload, and speaker short protection)
• Wired remote bass level control included
• 10.31" W x 17.00" L x 2.25" H

5

• RMS: 325W x 4 @ 4 ohm
• Total Peak Power: 2600W
• Gold-plated RCA low level and high level inputs
• 3-way protection circuitry (thermal, overload, and speaker short protection)
• Wired remote bass level control included
• 10.31" W x 17.00" L x 2.25" H

Boss AR1600.4

1600W Peak (1200W RMS) ARMOR Series Class-AB 4-Channel Amplifier with Bass Remote

AR1600.4 big DISCONTINUED
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Boss AR1600.4

1600W Peak (1200W RMS) ARMOR Series Class-AB 4-Channel Amplifier with Bass Remote

• 150 watts x 4 channel @ 4 ohm
• 300 watts x 4 channel @ 2 ohm
• Bridged: 600 watts x 2 channel @ 4 ohm
• Total RMS Power: 600 watts
• Class A/B 2 ohm Stable 4-Channel Amplifier

6

• 150 watts x 4 channel @ 4 ohm
• 300 watts x 4 channel @ 2 ohm
• Bridged: 600 watts x 2 channel @ 4 ohm
• Total RMS Power: 600 watts
• Class A/B 2 ohm Stable 4-Channel Amplifier

Boss PF1800

1800W 4 Channel Phantom Series Full Range Class AB Amplifier

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Boss PF1800

1800W 4 Channel Phantom Series Full Range Class AB Amplifier

• RMS: 225W x 4 @ 4 ohm
• Total Peak Power: 1800W
• Gold-plated RCA low level and high level inputs
• 3-way protection circuitry (thermal, overload, and speaker short protection)
• Wired remote bass level control included
• 10.31" W x 13.50" L x 2.25" H

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VIP Product Get $16.00 in rewards to spend later

1

• RMS: 225W x 4 @ 4 ohm
• Total Peak Power: 1800W
• Gold-plated RCA low level and high level inputs
• 3-way protection circuitry (thermal, overload, and speaker short protection)
• Wired remote bass level control included
• 10.31" W x 13.50" L x 2.25" H

BOSS AUDIO Riot R1004 400W 4 Channel Car Power Amplifier Amp Mosfet (12 Pack)

BOSS AUDIO Riot R1004 400W 4 Channel Car Power Amplifier Amp Mosfet (12 Pack)

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BOSS AUDIO Riot R1004 400W 4 Channel Car Power Amplifier Amp Mosfet (12 Pack)

BOSS AUDIO Riot R1004 400W 4 Channel Car Power Amplifier Amp Mosfet (12 Pack)

• RMS: 38W x 4 @ 4 ohm
• Peak: 100W x 4 @ 2 ohm
• Total Peak Power: 400W
• Frequency response: 12 - 22,000 Hz
• Dimensions: 9"W x 7-3/4"L x 2"H

15

• RMS: 38W x 4 @ 4 ohm
• Peak: 100W x 4 @ 2 ohm
• Total Peak Power: 400W
• Frequency response: 12 - 22,000 Hz
• Dimensions: 9"W x 7-3/4"L x 2"H

Boss Elite BE1600.4

1600W Peak (750W RMS) Elite Series Class-AB 4-Channel Amplifier with Remote Bass Knob

Includes an Exclusive 5-Year Warranty!
BE1600.4 big DISCONTINUED
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Boss Elite BE1600.4

1600W Peak (750W RMS) Elite Series Class-AB 4-Channel Amplifier with Remote Bass Knob

• 150 Watts RMS x 4 @ 4 ohm
• 300 Watts RMS x 4 @ 2 ohm
• Total Peak Power: 1600 Watts
• Variable Bass Boost: 0 to +18 dB bass boost
• Heavy duty aluminum alloy split-dome convection heat-sink for extreme heat dissipation
• 3-way protection circuitry (thermal, overload, and speaker short protection)

Promo Savings Icon
Includes an Exclusive 5-Year Warranty!
VIP Star Icon

VIP Product Get $13.00 in rewards to spend later

1

• 150 Watts RMS x 4 @ 4 ohm
• 300 Watts RMS x 4 @ 2 ohm
• Total Peak Power: 1600 Watts
• Variable Bass Boost: 0 to +18 dB bass boost
• Heavy duty aluminum alloy split-dome convection heat-sink for extreme heat dissipation
• 3-way protection circuitry (thermal, overload, and speaker short protection)

Boss BPS4B

500W Peak Full Range 4-Channel Class A/B High Output Amplifier

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Boss BPS4B

500W Peak Full Range 4-Channel Class A/B High Output Amplifier

• 94 watts x 4 channel @ 4 ohm
• Total RMS Power: 376 watts
• Class A/B 4 ohm Stable 4-Channel Amplifier
• Wireless Audio streaming [A2DP] Bluetooth technology

1

• 94 watts x 4 channel @ 4 ohm
• Total RMS Power: 376 watts
• Class A/B 4 ohm Stable 4-Channel Amplifier
• Wireless Audio streaming [A2DP] Bluetooth technology

Boss R3004

1200W Max (450W RMS) Riot Series 2 ohm Stable 4-Channel Class-A/B Amplifier w/ Remote Level Control

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Boss R3004

1200W Max (450W RMS) Riot Series 2 ohm Stable 4-Channel Class-A/B Amplifier w/ Remote Level Control

• 113 Watts RMS x 1 @ 4 ohm
• 225 Watts RMS x 1 @ 2 ohm
• 450 Watts RMS x 1 @ Bridged
• Total Peak Power: 1200 Watts
• CEA-2006 Compliant
• 18 dB Bass Boost
• Black Anodized Heatsink

• 113 Watts RMS x 1 @ 4 ohm
• 225 Watts RMS x 1 @ 2 ohm
• 450 Watts RMS x 1 @ Bridged
• Total Peak Power: 1200 Watts
• CEA-2006 Compliant
• 18 dB Bass Boost
• Black Anodized Heatsink

Boss R2504

1000W Max (750W RMS) Riot Series Class A/B 2-Ohm Stable 4-Channel Full Range Amplifier w/ Remote Level Control

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Boss R2504

1000W Max (750W RMS) Riot Series Class A/B 2-Ohm Stable 4-Channel Full Range Amplifier w/ Remote Level Control

• 94 Watts RMS x 4 @ 4 ohm
• 188 Watts RMS x 4 @ 2 ohm
• 375 Watts RMS x 2 @ 4 ohm, Bridged
• Total Peak Power: 1000 Watts
• Variable Low Pass Filter
• 0 - 18dB Bass Boost
• Aluminum Heatsink
• Dimensions: 11.57" W x 10.43" L x 2.25" H

• 94 Watts RMS x 4 @ 4 ohm
• 188 Watts RMS x 4 @ 2 ohm
• 375 Watts RMS x 2 @ 4 ohm, Bridged
• Total Peak Power: 1000 Watts
• Variable Low Pass Filter
• 0 - 18dB Bass Boost
• Aluminum Heatsink
• Dimensions: 11.57" W x 10.43" L x 2.25" H

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    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.
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