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  1. Home
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  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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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 RGF1600

1600W Peak (1200W RMS) Rage Series Class-A/B 4-Channel 2-Ohm Stable Bridgeable Amplifier

RGF1600 big DISCONTINUED
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Boss RGF1600

1600W Peak (1200W RMS) Rage Series Class-A/B 4-Channel 2-Ohm Stable Bridgeable Amplifier

• 150 Watts RMS x 4 @ 4 ohm
• 300 Watts RMS x 4 @ 2 ohm
• 600 Watts RMS x 2 Bridged @ 4 ohm
• Total Peak Power: 1600 Watts
• Variable low-pass filter: 35 - 160 Hz
• Variable Bass Boost: 0 to +18 dB bass boost
• Wired remote bass level control included
• Dimensions: 10"W x 15.875"L x 2"H

• 150 Watts RMS x 4 @ 4 ohm
• 300 Watts RMS x 4 @ 2 ohm
• 600 Watts RMS x 2 Bridged @ 4 ohm
• Total Peak Power: 1600 Watts
• Variable low-pass filter: 35 - 160 Hz
• Variable Bass Boost: 0 to +18 dB bass boost
• Wired remote bass level control included
• Dimensions: 10"W x 15.875"L x 2"H

Boss CE1004

1000W Chaos Epic Series 4-Channel Power Amplifier with Line and Speaker Level Inputs

CE1004 big DISCONTINUED
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Boss CE1004

1000W Chaos Epic Series 4-Channel Power Amplifier with Line and Speaker Level Inputs

Chaos Epic Series 4-Channel Power Amplifier • 520W RMS • 1000W Max • MOSFET Power Supply • LED Power and Protect Indicators • Variable Input Gain Control • 2-Way System Protection Circuitry • Heavy Duty Black Anodized Aluminum Heatsink

3

Chaos Epic Series 4-Channel Power Amplifier • 520W RMS • 1000W 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 CER350.4

700W 4-Channel Class AB Chaos Epic Series Stereo Bridgeable Amp

CER350.4 big DISCONTINUED
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Boss CER350.4

700W 4-Channel Class AB Chaos Epic Series Stereo Bridgeable Amp

• 170W x 4-Chan. @ 4 ohm
• 350W 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

1

• 170W x 4-Chan. @ 4 ohm
• 350W 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 CH600

800W Max, Chaos Series 4-Channel Amplifier (CH-600)

CH600 big DISCONTINUED
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Boss CH600

800W Max, Chaos Series 4-Channel Amplifier (CH-600)

800 watts Max, Class A/B 4-Channel Amplifier • 75 watts RMS x 4 chan. @ 4 ohm • 4 ohm Bridged: 400 watts Max x 2 chan. • MOSFET Power Supply • Tri-Mode Capable • Heavy-duty Aluminum Alloy Heatsink • High Pass, Full, and Low Pass Crossover • Soft Turn-on Circuit • Thermal and Speaker Short Protection

800 watts Max, Class A/B 4-Channel Amplifier • 75 watts RMS x 4 chan. @ 4 ohm • 4 ohm Bridged: 400 watts Max x 2 chan. • MOSFET Power Supply • Tri-Mode Capable • Heavy-duty Aluminum Alloy Heatsink • High Pass, Full, and Low Pass Crossover • Soft Turn-on Circuit • Thermal and Speaker Short Protection

Boss CH800

1600W Max, Chaos Series 4-Channel Amplifier (CH-800)

CH800 big DISCONTINUED
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Boss CH800

1600W Max, Chaos Series 4-Channel Amplifier (CH-800)

1600 watts Max, Class A/B 4-Channel Amplifier • 150 watts RMS x 4 chan. @ 4 ohm • 4 ohm Bridged: 800 watts Max x 2 chan. • MOSFET Power Supply • Tri-Mode Capable • Heavy-duty Aluminum Alloy Heatsink • High Pass, Full, and Low Pass Crossover • Soft Turn-on Circuit • Thermal and Speaker Short Protection

1

1600 watts Max, Class A/B 4-Channel Amplifier • 150 watts RMS x 4 chan. @ 4 ohm • 4 ohm Bridged: 800 watts Max x 2 chan. • MOSFET Power Supply • Tri-Mode Capable • Heavy-duty Aluminum Alloy Heatsink • High Pass, Full, and Low Pass Crossover • Soft Turn-on Circuit • Thermal and Speaker Short Protection

Boss CH1000

2000W Max, Chaos Series 4-Channel Amplifier (CH-1000)

CH1000 big DISCONTINUED
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Boss CH1000

2000W Max, Chaos Series 4-Channel Amplifier (CH-1000)

2000 watts Max, Class A/B 4-Channel Amplifier • 200 watts RMS x 4 chan. @ 4 ohm • 4 ohm Bridged: 1000 watts Max x 2 chan. • MOSFET Power Supply • Tri-Mode Capable • Heavy-duty Aluminum Alloy Heatsink • High Pass, Full, and Low Pass Crossover • Soft Turn-on Circuit • Thermal and Speaker Short Protection

2000 watts Max, Class A/B 4-Channel Amplifier • 200 watts RMS x 4 chan. @ 4 ohm • 4 ohm Bridged: 1000 watts Max x 2 chan. • MOSFET Power Supply • Tri-Mode Capable • Heavy-duty Aluminum Alloy Heatsink • High Pass, Full, and Low Pass Crossover • Soft Turn-on Circuit • Thermal and Speaker Short Protection

Boss K980 Klash Series

K980 big DISCONTINUED
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Boss K980 Klash Series

1600W Bridgeable 4-channel amplifier • Remote subwoofer control • 18dB Bass Boost • Variable high and low pass crossovers

1600W Bridgeable 4-channel amplifier • Remote subwoofer control • 18dB Bass Boost • Variable high and low pass crossovers

Boss RT945 RIOT Series

RT945 big DISCONTINUED
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Boss RT945 RIOT Series

1200 watts, 5-Channel RIOT Series amplifier • Bass Boost • Bridgeable • Remote sub level control • 4-channels for your mids/highs, 1-mono channel for your sub(s)

1200 watts, 5-Channel RIOT Series amplifier • Bass Boost • Bridgeable • Remote sub level control • 4-channels for your mids/highs, 1-mono channel for your sub(s)

Boss MR1000 R/B

Refurbished 1000W Max, 4-Channel Marine Power Amplifier (MR 1000)

MR1000 big DISCONTINUED
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Boss MR1000 R/B

Refurbished 1000W Max, 4-Channel Marine Power Amplifier (MR 1000)

1000W Max, 4-Channel Class A/B Marine Power Amplifier • 100 Watts RMS x 4 Chan. @ 4 Ohm • 250 Watts Max x 4 Chan. @ 2 Ohm • Protective Humidity Coating On PC Board • Tri-Mode Capable • Soft Turn-On Circuitry

1000W Max, 4-Channel Class A/B Marine Power Amplifier • 100 Watts RMS x 4 Chan. @ 4 Ohm • 250 Watts Max x 4 Chan. @ 2 Ohm • Protective Humidity Coating On PC Board • Tri-Mode Capable • Soft Turn-On Circuitry

Boss D250.4 R/B

1000W Max, 4-Channel Diablo Series Amplifier (D2504)

D250.4-RB big DISCONTINUED
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Boss D250.4 R/B

1000W Max, 4-Channel Diablo Series Amplifier (D2504)

Diablo Series 4-Channel Class AB Car Amplifier • 100W x 4 chan. @ 4 ohm • 250W x 4 chan. Max • MOSFET power supply • Remote subwoofer level control • LED power and protection indicators • Variable high/low pass crossovers

Diablo Series 4-Channel Class AB Car Amplifier • 100W x 4 chan. @ 4 ohm • 250W x 4 chan. Max • MOSFET power supply • Remote subwoofer level control • LED power and protection indicators • Variable high/low pass crossovers

Boss CX800

1600W Max, 4-Channel Chaos Exxtreme Series Amplifier (CX-800)

CX800 big DISCONTINUED
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Boss CX800

1600W Max, 4-Channel Chaos Exxtreme Series Amplifier (CX-800)

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

1

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 CE404 (Open Box)

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

CE404 big DISCONTINUED
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Boss CE404 (Open Box)

Open Box: 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 RT835 Riot Series

No picture DISCONTINUED
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Boss RT835 Riot Series

* Discontinued *

* Discontinued *

Boss RGF1200

1200W Peak (900W RMS) Rage Series Class-A/B 4-Channel 2-Ohm Stable Bridgeable Amplifier

RGF1200 big DISCONTINUED
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Boss RGF1200

1200W Peak (900W RMS) Rage Series Class-A/B 4-Channel 2-Ohm Stable Bridgeable Amplifier

• 113 Watts RMS x 4 @ 4 ohm
• 225 Watts RMS x 4 @ 2 ohm
• 450 Watts RMS x 2 Bridged @ 4 ohm
• Total Peak Power: 1200 Watts
• Variable low-pass filter: 35 - 160 Hz
• Variable Bass Boost: 0 to +18 dB bass boost
• Wired remote bass level control included
• Dimensions: 10"W x 12.7"L x 2"H

• 113 Watts RMS x 4 @ 4 ohm
• 225 Watts RMS x 4 @ 2 ohm
• 450 Watts RMS x 2 Bridged @ 4 ohm
• Total Peak Power: 1200 Watts
• Variable low-pass filter: 35 - 160 Hz
• Variable Bass Boost: 0 to +18 dB bass boost
• Wired remote bass level control included
• Dimensions: 10"W x 12.7"L x 2"H

Boss RT845 RIOT Series

RT845 big DISCONTINUED
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Boss RT845 RIOT Series

1600 watts, 4-Channel RIOT Series amplifier • Bass Boost • Bridgeable • Remote sub level control

1600 watts, 4-Channel RIOT Series amplifier • Bass Boost • Bridgeable • Remote sub level control

Boss R1004- OPEN BOX

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

R1004-2 big DISCONTINUED
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Boss R1004- OPEN BOX

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 CX650 R/B

1000W Max 4-Channel Chaos Exxtreme Series Amplifier

CX650 big DISCONTINUED
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Boss CX650 R/B

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

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 CE2004

2000W Chaos Epic Series 4-Channel Power Amplifier with Line and Speaker Level Inputs

CE2004 big DISCONTINUED
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Boss CE2004

2000W Chaos Epic Series 4-Channel Power Amplifier with Line and Speaker Level Inputs

Chaos Epic Series 4-Channel Power Amplifier • 960W RMS • 2000W Max • MOSFET Power Supply • LED Power and Protect Indicators • Variable Input Gain Control • 2-Way System Protection Circuitry • Heavy Duty Black Anodized Aluminum Heatsink

2

Chaos Epic Series 4-Channel Power Amplifier • 960W RMS • 2000W 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 MR1200PA R/B

Refurbished 1200W Max, 4-Channel Marine Audio Amplifier with PA System Microphone for Wakeboard and Other Uses (MR-1200PA)

MR1200PA big DISCONTINUED
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Boss MR1200PA R/B

Refurbished 1200W Max, 4-Channel Marine Audio Amplifier with PA System Microphone for Wakeboard and Other Uses (MR-1200PA)

4-Channel Class AB Marine Amplifier with PA System Microphone • 150W x 4 chan. @ 4 Ohm • 300W x 4 chan. @ 2 Ohm • 600W x 2 chan. @ 4 Ohm • MOSFET PWM (Pulse Width Modulated) power supply • Wired remote bass level control included

4-Channel Class AB Marine Amplifier with PA System Microphone • 150W x 4 chan. @ 4 Ohm • 300W x 4 chan. @ 2 Ohm • 600W x 2 chan. @ 4 Ohm • MOSFET PWM (Pulse Width Modulated) power supply • Wired remote bass level control included

Two Pair of Boss PG653 with BT Amplifier, Power Supply & Fog Machine

(2) 6.5" Phantom Ghost Series Speakers + 4-Ch Bluetooth Micro Amplifier + Regulated Power Supply + 600W Professional Fog Machine

2-PG653_MC900B_PS14KX_Magnum 650 big DISCONTINUED
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Two Pair of Boss PG653 with BT Amplifier, Power Supply & Fog Machine

(2) 6.5" Phantom Ghost Series Speakers + 4-Ch Bluetooth Micro Amplifier + Regulated Power Supply + 600W Professional Fog Machine

• RMS power output: 150W
•Max power output: 500W
• 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)
• 1" Mylar Dome Midrange
• 1/2" Peizo Dome Tweeter
• Mounting Depth: 2-1/4"
• Black Poly Injection Cone

18

• RMS power output: 150W
•Max power output: 500W
• 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)
• 1" Mylar Dome Midrange
• 1/2" Peizo Dome Tweeter
• Mounting Depth: 2-1/4"
• Black Poly Injection Cone

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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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