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  3. Discontinued Autotek Car Audio & Electronics
  4. Discontinued Autotek Car Amplifiers
  5. Discontinued Autotek 4-Channel Amplifiers

Discontinued Autotek 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.
Condition

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You are currently viewing discontinued products.

Autotek AXL4050.4

4000W 4-Channel AXL Series Class AB Car Amplifier

AXL4050.4 big DISCONTINUED
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Autotek AXL4050.4

4000W 4-Channel AXL Series Class AB Car Amplifier

• 500W x 4-Chan. @ 4 ohm
• 1000W x 4-Chan. @ 2 ohm
• 2000W x 2 Chan. @ 4 ohm
• 3-Way System Protection
• 4/3/2 Channel Operation
• 1/0 Gauge Power and Ground Inputs
• Illuminated Logo for Stylish and Unique Design

2

• 500W x 4-Chan. @ 4 ohm
• 1000W x 4-Chan. @ 2 ohm
• 2000W x 2 Chan. @ 4 ohm
• 3-Way System Protection
• 4/3/2 Channel Operation
• 1/0 Gauge Power and Ground Inputs
• Illuminated Logo for Stylish and Unique Design

Autotek MM100.4

500W RMS Mean Machine Series 4-Channel Amplifier

MM100.4 big DISCONTINUED
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Autotek MM100.4

500W RMS Mean Machine Series 4-Channel Amplifier

Mean Machine Series 4-Channel Car Amplifier • 100 Watts x 4 Chan @ 4 Ohm • 150 Watts x 4 Chan @ 2 Ohm • MOSFET Power Supply • LED Power Indicators • TCID (Twin Coil Isolation Design) • Aluminum Alloy Heatsink

Mean Machine Series 4-Channel Car Amplifier • 100 Watts x 4 Chan @ 4 Ohm • 150 Watts x 4 Chan @ 2 Ohm • MOSFET Power Supply • LED Power Indicators • TCID (Twin Coil Isolation Design) • Aluminum Alloy Heatsink

Autotek Mean Machine M2000.4

2000W Mean Machine Series 4-Channel Class AB Car Amplifier

M2000.4 big DISCONTINUED
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Autotek Mean Machine M2000.4

2000W Mean Machine Series 4-Channel Class AB Car Amplifier

• 2000 Watts Max
• 250 Watts x 4-Chan. @ 2 Ohm
• 4-Way System Protection
• Selectable Highpass/Lowpass Filters

19

• 2000 Watts Max
• 250 Watts x 4-Chan. @ 2 Ohm
• 4-Way System Protection
• Selectable Highpass/Lowpass Filters

Autotek Mean Machine M1000.4 (Factory Refurbished)

1000W Mean Machine Series 4-Channel Car Audio Amplifier

M1000.4 big DISCONTINUED
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Autotek Mean Machine M1000.4 (Factory Refurbished)

1000W Mean Machine Series 4-Channel Car Audio Amplifier

• 1000W Max
• 250 Watts x 4-Chan. @ 2 Ohm
• 4-Way System Protection
• Selectable Highpass/Lowpass Filters

• 1000W Max
• 250 Watts x 4-Chan. @ 2 Ohm
• 4-Way System Protection
• Selectable Highpass/Lowpass Filters

Autotek ATX1200.4 (Factory Refurbished)

1200W Max 4-Channel Class AB ATX Series Amplifier

ATX1200.4 big DISCONTINUED
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Autotek ATX1200.4 (Factory Refurbished)

1200W Max 4-Channel Class AB ATX Series Amplifier

ATX Series 4-Channel Class A/B Car Amplifier • 1200 Watts Max • 300 Watts x 4 Chan @ 2 Ohm • Military Grade PCB Design • 0 to +12 dB Bass Boost • Speaker-Level Inputs • Preamp RCA Outputs

ATX Series 4-Channel Class A/B Car Amplifier • 1200 Watts Max • 300 Watts x 4 Chan @ 2 Ohm • Military Grade PCB Design • 0 to +12 dB Bass Boost • Speaker-Level Inputs • Preamp RCA Outputs

Autotek MM100.4 R/B

600W RMS Mean Machine Series 4-Channel Amplifier

MM100.4 big DISCONTINUED
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Autotek MM100.4 R/B

600W RMS Mean Machine Series 4-Channel Amplifier

Mean Machine Series 4-Channel Car Amplifier • 100 watts x 4 chan @ 4 ohm • 150 watts x 4 chan @ 2 ohm • MOSFET Power Supply • LED Power Indicators • TCID (Twin Coil Isolation Design) • Aluminum Alloy Heatsink

Mean Machine Series 4-Channel Car Amplifier • 100 watts x 4 chan @ 4 ohm • 150 watts x 4 chan @ 2 ohm • MOSFET Power Supply • LED Power Indicators • TCID (Twin Coil Isolation Design) • Aluminum Alloy Heatsink

Autotek MM1550.4 OPEN BOX COMPLETE

1500W 4-Channel Mean Machine Series Class AB Amplifier

MM1550.4 big DISCONTINUED
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Autotek MM1550.4 OPEN BOX COMPLETE

1500W 4-Channel Mean Machine Series Class AB Amplifier

Item is used and has been previously installed
• Max Power: 200W x 4 @ 4 ohm, 375W x 4 @ 2 ohm
• Total Peak Power: 1500W
• Fully Adjustable Pro-Design Crossovers
• Dimensions: 9.05" W x 11.02" L x 2.29" H

Item is used and has been previously installed
• Max Power: 200W x 4 @ 4 ohm, 375W x 4 @ 2 ohm
• Total Peak Power: 1500W
• Fully Adjustable Pro-Design Crossovers
• Dimensions: 9.05" W x 11.02" L x 2.29" H

Autotek AXL2550.1 (Factory Refurbished)

2500W Max Monoblock AXL Series Class AB Car Amplifier

AXL2550.1 big DISCONTINUED
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Autotek AXL2550.1 (Factory Refurbished)

2500W Max Monoblock AXL Series Class AB Car Amplifier

• Peak: 625W x 1 @ 4 ohm, 1250W x 1 @ 2 ohm, 2500W x 1 @ 1 ohm
• Total Peak Power: 2500W
• 1 Pair of Preamp Outputs
• Bass Boost: 0-12 dB at 50 Hz
• Low Pass Filter: 40-150 Hz
• Dimensions: 9-1/16"W x 17-15/16"D x 2-5/16"H

• Peak: 625W x 1 @ 4 ohm, 1250W x 1 @ 2 ohm, 2500W x 1 @ 1 ohm
• Total Peak Power: 2500W
• 1 Pair of Preamp Outputs
• Bass Boost: 0-12 dB at 50 Hz
• Low Pass Filter: 40-150 Hz
• Dimensions: 9-1/16"W x 17-15/16"D x 2-5/16"H

Autotek ATX950.4 (Factory Refurbished)

950W Max 4-Channel Class AB ATX Series Amplifier

LS-ATX950.4-RB big DISCONTINUED
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Autotek ATX950.4 (Factory Refurbished)

950W Max 4-Channel Class AB ATX Series Amplifier

• ATX Series 4-Channel Class A/B Car Amplifier
• 950 Watts Max
• 240 Watts x 4 Chan @ 2 Ohm
• Military Grade PCB Design
• 0 to +12 dB Bass Boost
• Speaker-Level Inputs
• Preamp RCA Outputs

• ATX Series 4-Channel Class A/B Car Amplifier
• 950 Watts Max
• 240 Watts x 4 Chan @ 2 Ohm
• Military Grade PCB Design
• 0 to +12 dB Bass Boost
• Speaker-Level Inputs
• Preamp RCA Outputs

Autotek AXL1050.4 (Factory Refurbished)

1000W 4-Channel AXL Series Class AB Car Amplifier

AXL1050.4 big DISCONTINUED
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Autotek AXL1050.4 (Factory Refurbished)

1000W 4-Channel AXL Series Class AB Car Amplifier

• 125W x 4-Chan. @ 4 ohm, 250W x 4-Chan. @ 2 ohm
• 500W x 2 Chan. @ 4 ohm
• 3-Way System Protection
• 4/3/2 Channel Operation
• 4 Gauge Power and Ground Inputs
• Illuminated Logo for Stylish and Unique Design

1

• 125W x 4-Chan. @ 4 ohm, 250W x 4-Chan. @ 2 ohm
• 500W x 2 Chan. @ 4 ohm
• 3-Way System Protection
• 4/3/2 Channel Operation
• 4 Gauge Power and Ground Inputs
• Illuminated Logo for Stylish and Unique Design

Autotek MM2050.4 OPEN BOX COMPLETE

2000W 4-Channel Mean Machine Series Class AB Amplifier

MM2050.4 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Autotek MM2050.4 OPEN BOX COMPLETE

2000W 4-Channel Mean Machine Series Class AB Amplifier

  • Item Condition: Open box complete
    • • Max Power: 250W x 4 @ 4 ohm, 500W x 4 @ 2 ohm
    • Total Peak Power: 2000W
    • Fully Adjustable Pro-Design Crossovers
    • Dimensions: 9.05" W x 12.6" L x 2.29" H

  • Item Condition: Open box complete
    • • Max Power: 250W x 4 @ 4 ohm, 500W x 4 @ 2 ohm
    • Total Peak Power: 2000W
    • Fully Adjustable Pro-Design Crossovers
    • Dimensions: 9.05" W x 12.6" L x 2.29" H

    Autotek AXL4050.4 (Factory Refurbished)

    4000W 4-Channel AXL Series Class AB Car Amplifier

    AXL4050.4 big DISCONTINUED
    Go to item page Right Arrow Icon of Right Arrow

    Autotek AXL4050.4 (Factory Refurbished)

    4000W 4-Channel AXL Series Class AB Car Amplifier

    • 500W x 4-Chan. @ 4 ohm
    • 1000W x 4-Chan. @ 2 ohm
    • 2000W x 2 Chan. @ 4 ohm
    • 3-Way System Protection
    • 4/3/2 Channel Operation
    • 1/0 Gauge Power and Ground Inputs
    • Illuminated Logo for Stylish and Unique Design

    • 500W x 4-Chan. @ 4 ohm
    • 1000W x 4-Chan. @ 2 ohm
    • 2000W x 2 Chan. @ 4 ohm
    • 3-Way System Protection
    • 4/3/2 Channel Operation
    • 1/0 Gauge Power and Ground Inputs
    • Illuminated Logo for Stylish and Unique Design

    Autotek AXL1450.4 (Factory Refurbished)

    1400W 4-Channel AXL Series Class AB Car Amplifier

    AXL1450.4 big DISCONTINUED
    Go to item page Right Arrow Icon of Right Arrow

    Autotek AXL1450.4 (Factory Refurbished)

    1400W 4-Channel AXL Series Class AB Car Amplifier

    • 150W x 4-Chan. @ 4 ohm
    • 350W x 4-Chan. @ 2 ohm
    • 700W x 2 Chan. @ 4 ohm
    • 3-Way System Protection
    • 4/3/2 Channel Operation
    • 2 Gauge Power and Ground Inputs
    • Illuminated Logo for Stylish and Unique Design

    • 150W x 4-Chan. @ 4 ohm
    • 350W x 4-Chan. @ 2 ohm
    • 700W x 2 Chan. @ 4 ohm
    • 3-Way System Protection
    • 4/3/2 Channel Operation
    • 2 Gauge Power and Ground Inputs
    • Illuminated Logo for Stylish and Unique Design

    Autotek 4 Channel 1000 Watt Amp Car Audio Class A/B Power Amplifier | (2 Pack)

    Autotek 4 Channel 1000 Watt Amp Car Audio Class A/B Power Amplifier | (2 Pack)

    No picture DISCONTINUED
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    Autotek 4 Channel 1000 Watt Amp Car Audio Class A/B Power Amplifier | (2 Pack)

    Autotek 4 Channel 1000 Watt Amp Car Audio Class A/B Power Amplifier | (2 Pack)

    • 125 Watts x 1 @ 4 ohm
    • 250 Watts x 4 @ 2 ohm
    • Total Peak Power: 1000 Watts
    • Heavy duty aluminum alloy heat-sink heat-sink for extreme heat dissipation
    • Dimensions: 11.4"W x 13.9"L x 4"H

    14

    • 125 Watts x 1 @ 4 ohm
    • 250 Watts x 4 @ 2 ohm
    • Total Peak Power: 1000 Watts
    • Heavy duty aluminum alloy heat-sink heat-sink for extreme heat dissipation
    • Dimensions: 11.4"W x 13.9"L x 4"H

    Autotek Super Sport 2500W Class A/B 4 Channel Car Audio Amp Amplifier (2 Pack)

    Autotek Super Sport 2500W Class A/B 4 Channel Car Audio Amp Amplifier (2 Pack)

    No picture DISCONTINUED
    Go to item page Right Arrow Icon of Right Arrow

    Autotek Super Sport 2500W Class A/B 4 Channel Car Audio Amp Amplifier (2 Pack)

    Autotek Super Sport 2500W Class A/B 4 Channel Car Audio Amp Amplifier (2 Pack)

    • 325 Watts Peak x 4 @ 4 ohm
    • 625 Watts Peak x 4 @ 2 ohm
    • 1250 Watts Peak x 2 @ 4 ohm, Bridged
    • Total Peak Power: 2500 Watts
    • Built-In High and Low Pass Filters
    • Heavy Duty Aluminum Heatsink
    • Dimensions: 11" W x 10.25" L x 2" H

    3

    • 325 Watts Peak x 4 @ 4 ohm
    • 625 Watts Peak x 4 @ 2 ohm
    • 1250 Watts Peak x 2 @ 4 ohm, Bridged
    • Total Peak Power: 2500 Watts
    • Built-In High and Low Pass Filters
    • Heavy Duty Aluminum Heatsink
    • Dimensions: 11" W x 10.25" L x 2" H

    Autotek Mean Machine 2000W 4 Channel Bridgeable Amplifier Car Audio Amp (2 Pack)

    Autotek Mean Machine 2000W 4 Channel Bridgeable Amplifier Car Audio Amp (2 Pack)

    MM2020.4 2 Pack big DISCONTINUED
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    Autotek Mean Machine 2000W 4 Channel Bridgeable Amplifier Car Audio Amp (2 Pack)

    Autotek Mean Machine 2000W 4 Channel Bridgeable Amplifier Car Audio Amp (2 Pack)

    • 225 Watts Peak x 4 @ 4 ohm
    • 500 Watts Peak x 4 @ 2 ohm
    • 1000 Watts Peak x 2 @ 4 ohm, Bridged
    • Total Peak Power: 2000 Watts
    • Built In Low and High Pass Filters
    • 0-9 dB Bass Boost
    • Aluminum Heatsink

    • 225 Watts Peak x 4 @ 4 ohm
    • 500 Watts Peak x 4 @ 2 ohm
    • 1000 Watts Peak x 2 @ 4 ohm, Bridged
    • Total Peak Power: 2000 Watts
    • Built In Low and High Pass Filters
    • 0-9 dB Bass Boost
    • Aluminum Heatsink

    Autotek MM4020.4 Mean Machine 4000W 4 Channel Bridgeable Amplifier Amp (2 Pack)

    Autotek MM4020.4 Mean Machine 4000W 4 Channel Bridgeable Amplifier Amp (2 Pack)

    MM4020.4 2 Pack big DISCONTINUED
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    Autotek MM4020.4 Mean Machine 4000W 4 Channel Bridgeable Amplifier Amp (2 Pack)

    Autotek MM4020.4 Mean Machine 4000W 4 Channel Bridgeable Amplifier Amp (2 Pack)

    • 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

    1

    • 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

    Autotek 4 Channel 1000 Watt Amp Car Audio Class A/B Power Amplifier (4 Pack)

    Autotek 4 Channel 1000 Watt Amp Car Audio Class A/B Power Amplifier (4 Pack)

    No picture DISCONTINUED
    Go to item page Right Arrow Icon of Right Arrow

    Autotek 4 Channel 1000 Watt Amp Car Audio Class A/B Power Amplifier (4 Pack)

    Autotek 4 Channel 1000 Watt Amp Car Audio Class A/B Power Amplifier (4 Pack)

    • 125 Watts x 1 @ 4 ohm
    • 250 Watts x 4 @ 2 ohm
    • Total Peak Power: 1000 Watts
    • Heavy duty aluminum alloy heat-sink heat-sink for extreme heat dissipation
    • Dimensions: 11.4"W x 13.9"L x 4"H

    14

    • 125 Watts x 1 @ 4 ohm
    • 250 Watts x 4 @ 2 ohm
    • Total Peak Power: 1000 Watts
    • Heavy duty aluminum alloy heat-sink heat-sink for extreme heat dissipation
    • Dimensions: 11.4"W x 13.9"L x 4"H

    Autotek Super Sport 2500W Class A/B 4 Channel Car Audio Amp Amplifier (4 Pack)

    Autotek Super Sport 2500W Class A/B 4 Channel Car Audio Amp Amplifier (4 Pack)

    No picture DISCONTINUED
    Go to item page Right Arrow Icon of Right Arrow

    Autotek Super Sport 2500W Class A/B 4 Channel Car Audio Amp Amplifier (4 Pack)

    Autotek Super Sport 2500W Class A/B 4 Channel Car Audio Amp Amplifier (4 Pack)

    • 325 Watts Peak x 4 @ 4 ohm
    • 625 Watts Peak x 4 @ 2 ohm
    • 1250 Watts Peak x 2 @ 4 ohm, Bridged
    • Total Peak Power: 2500 Watts
    • Built-In High and Low Pass Filters
    • Heavy Duty Aluminum Heatsink
    • Dimensions: 11" W x 10.25" L x 2" H

    3

    • 325 Watts Peak x 4 @ 4 ohm
    • 625 Watts Peak x 4 @ 2 ohm
    • 1250 Watts Peak x 2 @ 4 ohm, Bridged
    • Total Peak Power: 2500 Watts
    • Built-In High and Low Pass Filters
    • Heavy Duty Aluminum Heatsink
    • Dimensions: 11" W x 10.25" L x 2" H

    Autotek Mean Machine 2000W 4 Channel Bridgeable Amplifier Car Audio Amp (4 Pack)

    Autotek Mean Machine 2000W 4 Channel Bridgeable Amplifier Car Audio Amp (4 Pack)

    MM2020.4 4 Pack big DISCONTINUED
    Go to item page Right Arrow Icon of Right Arrow

    Autotek Mean Machine 2000W 4 Channel Bridgeable Amplifier Car Audio Amp (4 Pack)

    Autotek Mean Machine 2000W 4 Channel Bridgeable Amplifier Car Audio Amp (4 Pack)

    • 225 Watts Peak x 4 @ 4 ohm
    • 500 Watts Peak x 4 @ 2 ohm
    • 1000 Watts Peak x 2 @ 4 ohm, Bridged
    • Total Peak Power: 2000 Watts
    • Built In Low and High Pass Filters
    • 0-9 dB Bass Boost
    • Aluminum Heatsink

    • 225 Watts Peak x 4 @ 4 ohm
    • 500 Watts Peak x 4 @ 2 ohm
    • 1000 Watts Peak x 2 @ 4 ohm, Bridged
    • Total Peak Power: 2000 Watts
    • Built In Low and High Pass Filters
    • 0-9 dB Bass Boost
    • Aluminum Heatsink

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      • Vehicle produced before 2005: Rear passenger doorjamb, glove box, center console, or engine compartment
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      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.

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