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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
Price Range
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 SS1500.4

1500W Peak Super Sport Class-A/B 4-Channel 2-Ohm Stable Amplifier

SS1500.4 big DISCONTINUED
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Autotek SS1500.4

1500W Peak Super Sport Class-A/B 4-Channel 2-Ohm Stable Amplifier

• 175 Watts Max x 4 @ 4 ohm
• 375 Watts Max x 4 @ 2 ohm
• 750 Watts Max x 2 @ 4 ohm, bridged
• Total Peak Power: 1500 Watts
• Built-In High and Low Pass Filters
• 0, +6, +12 Bass Boost Switch
• Heavy-Duty Aluminum Heatsink
• Dimensions: 12.75" W x 10.25" L x 2" H

• 175 Watts Max x 4 @ 4 ohm
• 375 Watts Max x 4 @ 2 ohm
• 750 Watts Max x 2 @ 4 ohm, bridged
• Total Peak Power: 1500 Watts
• Built-In High and Low Pass Filters
• 0, +6, +12 Bass Boost Switch
• Heavy-Duty Aluminum Heatsink
• Dimensions: 12.75" W x 10.25" L x 2" H

Autotek AXL1050.4

1000W 4-Channel AXL Series Class AB Car Amplifier

AXL1050.4 big DISCONTINUED
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Autotek AXL1050.4

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

5

• 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 SS3500.4 3500 Watt Amplifier with Amp Kit

Autotek SS3500.4 Super Sport 3500 Watt 4-Channel Car Amplifier Class A/B+Amp Kit

SS3500.4, BAK42BL, BBIC3 big DISCONTINUED
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Autotek SS3500.4 3500 Watt Amplifier with Amp Kit

Autotek SS3500.4 Super Sport 3500 Watt 4-Channel Car Amplifier Class A/B+Amp Kit

• 425 Watts Peak x 4 @ 4 ohm
• 875 Watts Peak x 4 @ 2 ohm
• 1750 Watts Peak x 2 @ 4 ohm, Bridged
• Total Peak Power: 3500 Watts
• Built-In High and Low Pass Filters
• Heavy Duty Aluminum Heatsink
• Dimensions: 12" W x 10.25" L x 2" H

83

• 425 Watts Peak x 4 @ 4 ohm
• 875 Watts Peak x 4 @ 2 ohm
• 1750 Watts Peak x 2 @ 4 ohm, Bridged
• Total Peak Power: 3500 Watts
• Built-In High and Low Pass Filters
• Heavy Duty Aluminum Heatsink
• Dimensions: 12" W x 10.25" L x 2" H

Autotek SS2500.4

2500W Peak Super Sport Class-A/B 4-Channel 2-Ohm Stable Amplifier

SS2500.4 big DISCONTINUED
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Autotek SS2500.4

2500W Peak Super Sport Class-A/B 4-Channel 2-Ohm Stable Amplifier

• 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 SMA1100.4 4 Channel Amplifier w/ Complete 8 AWG Amp Kit

1100W 4-Channel Street Machine (SMA) Series Amplifier + Amp Kit

SMA1100.4_BAK84 big DISCONTINUED
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Autotek SMA1100.4 4 Channel Amplifier w/ Complete 8 AWG Amp Kit

1100W 4-Channel Street Machine (SMA) Series Amplifier + Amp Kit

• Max: 150W x 4 @ 4 ohm, 275W x 4 @ 2 ohm , Bridged 550W x 2 @ 4 ohm
• Total Peak Power: 1100W
• Pulse Width Modulated MOSFET power supply
• Preamp RCA outputs to daisy chain multiple amps
• High-density split-dome convection heat-sink for extreme heat dissipation
• Complete 8 Gauge 4-Channel Amplifier Installation Kit

41

• Max: 150W x 4 @ 4 ohm, 275W x 4 @ 2 ohm , Bridged 550W x 2 @ 4 ohm
• Total Peak Power: 1100W
• Pulse Width Modulated MOSFET power supply
• Preamp RCA outputs to daisy chain multiple amps
• High-density split-dome convection heat-sink for extreme heat dissipation
• Complete 8 Gauge 4-Channel Amplifier Installation Kit

Autotek TA1050.4

1000W Max TA Series 4 ohm Stable 4-Channel Class-A/B Amplifier

TA1050.4 big DISCONTINUED
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Autotek TA1050.4

1000W Max TA Series 4 ohm Stable 4-Channel Class-A/B Amplifier

• 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 ATX1200.4

1200W Max 4-Channel Class AB ATX Series Amplifier

ATX1200.4 big DISCONTINUED
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Autotek ATX1200.4

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

4

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 ATA1000.4

1000W Max 4-Channel ATA Series Class-AB Car Amplifier

ATA1000.4 big DISCONTINUED
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Autotek ATA1000.4

1000W Max 4-Channel ATA Series Class-AB Car Amplifier

• Max Power: 125W x 4 @ 4 ohm, 250W x 4 @ 2 ohm
• Total Peak Power: 1000W
• Pulse Width Modulated MOSFET power supply
• LED power (green) and protect (red) indicators
• 4/3/2 channel operation
• Preamp RCA outputs to daisy chain multiple amps

5

• Max Power: 125W x 4 @ 4 ohm, 250W x 4 @ 2 ohm
• Total Peak Power: 1000W
• Pulse Width Modulated MOSFET power supply
• LED power (green) and protect (red) indicators
• 4/3/2 channel operation
• Preamp RCA outputs to daisy chain multiple amps

Autotek AT1200 (AT-1200)

1200W, 4-Channel Super Sport AT Series Car Amplifier

AT1200 big DISCONTINUED
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Autotek AT1200 (AT-1200)

1200W, 4-Channel Super Sport AT Series Car Amplifier

Super Sport AT 4-Channel Class A/B Car Amplifier • 150 Watts x 4 Chan. @ 4 Ohm • 300 Watts x 4 Chan. @ 2 Ohm • Twin Coil MOSFET Auto Step Power Supply • Pro-Fi Outputs • Soft Start Turn-On • 4-Way System Protection •

Super Sport AT 4-Channel Class A/B Car Amplifier • 150 Watts x 4 Chan. @ 4 Ohm • 300 Watts x 4 Chan. @ 2 Ohm • Twin Coil MOSFET Auto Step Power Supply • Pro-Fi Outputs • Soft Start Turn-On • 4-Way System Protection •

Autotek SS3500.4

3500W Peak Super Sport Class-A/B 4-Channel 2-Ohm Stable Amplifier

SS3500.4 big DISCONTINUED
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Autotek SS3500.4

3500W Peak Super Sport Class-A/B 4-Channel 2-Ohm Stable Amplifier

• 425 Watts Peak x 4 @ 4 ohm
• 875 Watts Peak x 4 @ 2 ohm
• 1750 Watts Peak x 2 @ 4 ohm, Bridged
• Total Peak Power: 3500 Watts
• Built-In High and Low Pass Filters
• Heavy Duty Aluminum Heatsink
• Dimensions: 12" W x 10.25" L x 2" H

• 425 Watts Peak x 4 @ 4 ohm
• 875 Watts Peak x 4 @ 2 ohm
• 1750 Watts Peak x 2 @ 4 ohm, Bridged
• Total Peak Power: 3500 Watts
• Built-In High and Low Pass Filters
• Heavy Duty Aluminum Heatsink
• Dimensions: 12" W x 10.25" L x 2" H

Autotek MMA1500.4 Open Box Complete

1500W 4-Channel Mean Machine Series Car Amplifier

MMA1500.4 big DISCONTINUED
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Autotek MMA1500.4 Open Box Complete

1500W 4-Channel Mean Machine Series Car Amplifier

• Item Condition: Open Box Compete
• RMS: 200W x 4 @ 4 ohm, 375W x 4 @ 2 ohm, Bridged: 750W x 2 @ 4 ohm
• Total Peak Power: 1500W
• Pro- Fi™ High Speed MOSFET’s
• Auto-Step PWM MOSFET Power Supply
• ROAD WORTHYTM TCID
• 4/2 channel operation

• Item Condition: Open Box Compete
• RMS: 200W x 4 @ 4 ohm, 375W x 4 @ 2 ohm, Bridged: 750W x 2 @ 4 ohm
• Total Peak Power: 1500W
• Pro- Fi™ High Speed MOSFET’s
• Auto-Step PWM MOSFET Power Supply
• ROAD WORTHYTM TCID
• 4/2 channel operation

Autotek ATX950.4

950W Max 4-Channel Class AB ATX Series Amplifier

ATX950.4 big DISCONTINUED
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Autotek ATX950.4

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

5

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 Mean Machine M1400.4 (Factory Refurbished)

1400W Mean Machine Series 4-Channel Car Audio Amplifier

M1400.4-2 big DISCONTINUED
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Autotek Mean Machine M1400.4 (Factory Refurbished)

1400W Mean Machine Series 4-Channel Car Audio Amplifier

• 1400W
• 250 Watts x 4-Chan. @ 2 Ohm
• 4-Way System Protection
• Selectable Highpass/Lowpass Filters

• 1400W
• 250 Watts x 4-Chan. @ 2 Ohm
• 4-Way System Protection
• Selectable Highpass/Lowpass Filters

Autotek Mean Machine M2000.4 (Factory Refurbished)

2000W Mean Machine Series 4-Channel Car Audio Amplifier

M2000.4-2 big DISCONTINUED
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Autotek Mean Machine M2000.4 (Factory Refurbished)

2000W Mean Machine Series 4-Channel Car Audio Amplifier

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

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

Autotek ATA1400.4

1400W Max 4-Channel ATA Series Class AB Car Amplifier

ATA1400.4 big DISCONTINUED
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Autotek ATA1400.4

1400W Max 4-Channel ATA Series Class AB Car Amplifier

• Max Power: 175W x 4 @ 4 ohm, 350W x 4 @ 2 ohm
• Total Peak Power: 1400W
• Adjustable 12dB Crossovers
• Dimensions: 11.02" L x 9.05" W x 2.29" H

7

• Max Power: 175W x 4 @ 4 ohm, 350W x 4 @ 2 ohm
• Total Peak Power: 1400W
• Adjustable 12dB Crossovers
• Dimensions: 11.02" L x 9.05" W x 2.29" H

Autotek SM4-1000

1000W Max, 4-Channel Street Machines Series Car Amplifier

SM4-1000 big DISCONTINUED
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Autotek SM4-1000

1000W Max, 4-Channel Street Machines Series Car Amplifier

Street Machine AT 4-Channel Class A/B Car Amplifier • 1000 Watts Max • 500 Watts RMS • Twin Coil MOSFET Auto Step Power Supply • Pro-Fi Outputs • Soft Start Turn-On • 4-Way System Protection Circuitry • Bass Boost

1

Street Machine AT 4-Channel Class A/B Car Amplifier • 1000 Watts Max • 500 Watts RMS • Twin Coil MOSFET Auto Step Power Supply • Pro-Fi Outputs • Soft Start Turn-On • 4-Way System Protection Circuitry • Bass Boost

Autotek MM1150.4

1100W 4-Channel Mean Machine Series Class AB Amplifier

MM1150.4 big DISCONTINUED
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Autotek MM1150.4

1100W 4-Channel Mean Machine Series Class AB Amplifier

• Max Power: 150W x 4 @ 4 ohm, 275W x 4 @ 2 ohm
• Total Peak Power: 1100W
• Fully Adjustable Pro-Design Crossovers
• Dimensions: 9.05" W x 10.24" L x 2.29" H

7

• Max Power: 150W x 4 @ 4 ohm, 275W x 4 @ 2 ohm
• Total Peak Power: 1100W
• Fully Adjustable Pro-Design Crossovers
• Dimensions: 9.05" W x 10.24" L x 2.29" H

Autotek AT950

950W Max, 4-Channel Amplifier

AT950 big DISCONTINUED
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Autotek AT950

950W Max, 4-Channel Amplifier

Super Sport AT 4-Channel Class A/B Car Amplifier • 120 Watts x 4 Chan. @ 4 Ohm • 240 Watts x 4 Chan. @ 2 Ohm • Twin Coil MOSFET Auto Step Power Supply • Pro-Fi Outputs • Soft Start Turn-On • 4-Way System Protection •

6

Super Sport AT 4-Channel Class A/B Car Amplifier • 120 Watts x 4 Chan. @ 4 Ohm • 240 Watts x 4 Chan. @ 2 Ohm • Twin Coil MOSFET Auto Step Power Supply • Pro-Fi Outputs • Soft Start Turn-On • 4-Way System Protection •

Autotek MM1620.4

1600W Max (800W RMS) 4-Channel Class-A/B Amplifier

MM1620.4 big DISCONTINUED
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Autotek MM1620.4

1600W Max (800W RMS) 4-Channel Class-A/B Amplifier

• 200 Watts RMS x 4 @ 4 ohm
• 400 Watts RMS x 4 @ 2 ohm
• 800 Watts RMS x 1 @ 4 ohm Mono Bridged
• Low Pass, High Pass and Full Filters
• 0 to 9dB Bass Boost
• Heavy duty aluminum alloy heat-sink
• 4/3/2 channel operation

3

• 200 Watts RMS x 4 @ 4 ohm
• 400 Watts RMS x 4 @ 2 ohm
• 800 Watts RMS x 1 @ 4 ohm Mono Bridged
• Low Pass, High Pass and Full Filters
• 0 to 9dB Bass Boost
• Heavy duty aluminum alloy heat-sink
• 4/3/2 channel operation

Autotek MM1020.4

1000W Max (500W RMS) 4-Channel Class A/B Amplifier w/ Remote Level Control

MM1020.4 big DISCONTINUED
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Autotek MM1020.4

1000W Max (500W RMS) 4-Channel Class A/B Amplifier w/ Remote Level Control

• 125 Watts RMS x 4 @ 4 ohm
• 250 Watts RMS x 4 @ 2 ohm
• Total Peak Power: 1000 Watts
• CEA-2006 Compliant/Preamp Outputs/LPF
• 0, +6, +12 dB Bass Boost
• Aluminum Heat Sink

1

• 125 Watts RMS x 4 @ 4 ohm
• 250 Watts RMS x 4 @ 2 ohm
• Total Peak Power: 1000 Watts
• CEA-2006 Compliant/Preamp Outputs/LPF
• 0, +6, +12 dB Bass Boost
• Aluminum Heat Sink

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