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

Discontinued 2-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.
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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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Kicker KX450.2

450 watts, 04KX450.2 KX-Series 2-Channel Amplifier

KX450.2 big DISCONTINUED
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Kicker KX450.2

450 watts, 04KX450.2 KX-Series 2-Channel Amplifier

225 watts RMS x 2 channels @ 2 ohm • 3-way protection circuitry • 4 ohm mono stable / 2 ohm stereo stable

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225 watts RMS x 2 channels @ 2 ohm • 3-way protection circuitry • 4 ohm mono stable / 2 ohm stereo stable

Planet Audio AC2000.2-OPEN BOX

2000W Max Anarchy Series 2-Channel MOSFET Power Amplifier with Remote Level Control

AC2000.2 big DISCONTINUED
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Planet Audio AC2000.2-OPEN BOX

2000W Max Anarchy Series 2-Channel MOSFET Power Amplifier with Remote Level Control

• Anarchy Series 2-Channel MOSFET Powered Car Amplifier
• 2000W Max.
• Switchable Phase Shift
• Input Sensitivity Selector
• Remote Subwoofer Control
• Heavy-Duty Screw Terminals
• Chrome-Plated Connections
• Illuminated Logo

• Anarchy Series 2-Channel MOSFET Powered Car Amplifier
• 2000W Max.
• Switchable Phase Shift
• Input Sensitivity Selector
• Remote Subwoofer Control
• Heavy-Duty Screw Terminals
• Chrome-Plated Connections
• Illuminated Logo

Panasonic CY-PA2003U R/B

1200W Max, 2-Channel Amplifier

CY-PA2003U big DISCONTINUED
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Panasonic CY-PA2003U R/B

1200W Max, 2-Channel Amplifier

2-Channel Class AB Car Amplifier • 200W x 2 chan. @ 4 ohm • 600W x 2 chan. • MOSFET Power Supply • LED power and protection indicators • 1/2 channel operation • Gold-plated RCA level inputs • Gold-plated screw terminals

2-Channel Class AB Car Amplifier • 200W x 2 chan. @ 4 ohm • 600W x 2 chan. • MOSFET Power Supply • LED power and protection indicators • 1/2 channel operation • Gold-plated RCA level inputs • Gold-plated screw terminals

Hifonics Zeus ZXi200.2 (Factory Refurbished)

800W RMS, Zeus Series 2-Channel Amplifier (ZXi 200.2)

ZXi200.2 big DISCONTINUED
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Hifonics Zeus ZXi200.2 (Factory Refurbished)

800W RMS, Zeus Series 2-Channel Amplifier (ZXi 200.2)

Zeus Series 1/2 Channel Class A/B Car Amplifier • 400W x 2-Chan. @ 2 Ohm • 200W x 2-Chan. @ 4 Ohm • Wired HFR-3 Remote • 4-Way System Protection • MOSFET Power Supply • Silver-Plated RCA Inputs

Zeus Series 1/2 Channel Class A/B Car Amplifier • 400W x 2-Chan. @ 2 Ohm • 200W x 2-Chan. @ 4 Ohm • Wired HFR-3 Remote • 4-Way System Protection • MOSFET Power Supply • Silver-Plated RCA Inputs

Absolute 2VI2000

2000W Max Vicious Series 2-Channel Digital Amplifier

2VI2000 big DISCONTINUED
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Absolute 2VI2000

2000W Max Vicious Series 2-Channel Digital Amplifier

Vicious Series 2-Channel Class A/B Car Amplifier • 2000W Max • 180W x 2 Chan @ 2 Ohm • Bass Level Control • Speaker-Level (High-Level) Inputs • Preamp RCA Outputs

Vicious Series 2-Channel Class A/B Car Amplifier • 2000W Max • 180W x 2 Chan @ 2 Ohm • Bass Level Control • Speaker-Level (High-Level) Inputs • Preamp RCA Outputs

MTX WET75.2 (Open Box)

200W Wet Series 2-Channel Class A/B Marine Amplifier

WET75-2 big DISCONTINUED
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MTX WET75.2 (Open Box)

200W Wet Series 2-Channel Class A/B Marine Amplifier

• RMS Power: 75W x 2 @ 4 ohm, 100W x 2 @ 2 ohm
• Total Peak Power: 200W
• Plastic Cover Over Control-Adjustments
• Dimensions: 7.90"W x 6.40"L x 2.25"H

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• RMS Power: 75W x 2 @ 4 ohm, 100W x 2 @ 2 ohm
• Total Peak Power: 200W
• Plastic Cover Over Control-Adjustments
• Dimensions: 7.90"W x 6.40"L x 2.25"H

Phoenix Gold RSd 250.2 R/B

(Factory Refurbished) Radial Sd Series 2-Channel Amplifier RSd250.2

RSd250.2 big DISCONTINUED
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Phoenix Gold RSd 250.2 R/B

(Factory Refurbished) Radial Sd Series 2-Channel Amplifier RSd250.2

250W RSd 2-Channel Amplifier • 76W x 2 chan. @ 4 Ohm • 113W x 2 chan. @ 2 Ohm • MOSFET power supply • protection circuitry • line level inputs • variable bass boost • S/N ratio: 85dB

250W RSd 2-Channel Amplifier • 76W x 2 chan. @ 4 Ohm • 113W x 2 chan. @ 2 Ohm • MOSFET power supply • protection circuitry • line level inputs • variable bass boost • S/N ratio: 85dB

Crunch DRA850.2 (Factory Refurbished)

800W Max V-Drive Series 2-Channel Car Audio Amplifier

DRA850.2-RB big DISCONTINUED
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Crunch DRA850.2 (Factory Refurbished)

800W Max V-Drive Series 2-Channel Car Audio Amplifier

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

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

Rockford Fosgate Punch P500-2 Open Box

(Open Box) 1000W Max, Punch Series Compact 2-Channel Amplifier

P500-2 big DISCONTINUED
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Rockford Fosgate Punch P500-2 Open Box

(Open Box) 1000W Max, Punch Series Compact 2-Channel Amplifier

Punch Series 2-Channel Class AB Car Amplifier • 125W x 2 chan. @ 4 ohm • 250W x 2 chan. @ 2 ohm • 500W x 2 chan. Max • MOSFET power supply • RCA Pass-thru outputs

Punch Series 2-Channel Class AB Car Amplifier • 125W x 2 chan. @ 4 ohm • 250W x 2 chan. @ 2 ohm • 500W x 2 chan. Max • MOSFET power supply • RCA Pass-thru outputs

Kole Audio QX2-1440 R/B

1440W Max 2-Channel Amplifier

QX2-1440 big DISCONTINUED
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Kole Audio QX2-1440 R/B

1440W Max 2-Channel Amplifier

QX-Series 2-Channel Class AB Car Amplifier • 300W x 2 chan. @ 4 ohm • 360W x 2 chan. @ 2 ohm • 720W x 1 chan. @ 4 ohm • 1440W x 1 chan. Max • Pulse width modulated MOSFET power supply • Wired remote bass level control included • Preamp RCA outputs

QX-Series 2-Channel Class AB Car Amplifier • 300W x 2 chan. @ 4 ohm • 360W x 2 chan. @ 2 ohm • 720W x 1 chan. @ 4 ohm • 1440W x 1 chan. Max • Pulse width modulated MOSFET power supply • Wired remote bass level control included • Preamp RCA outputs

Power Acoustik PS2-300 R/B

300W Max, Power Series 2-Channel Amplifier

PS2-300 big DISCONTINUED
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Power Acoustik PS2-300 R/B

300W Max, Power Series 2-Channel Amplifier

Power Series 2-Channel Class A/B Car Amplifier • 300W Max • 85W x 2 Chan. @ 2 Ohm • 70W x 2 Chan. @ 4 Ohm • Tri-Mode Speaker Capability • Fully Selectable Crossover • 3-Way System Protection Circuitry

Power Series 2-Channel Class A/B Car Amplifier • 300W Max • 85W x 2 Chan. @ 2 Ohm • 70W x 2 Chan. @ 4 Ohm • Tri-Mode Speaker Capability • Fully Selectable Crossover • 3-Way System Protection Circuitry

Pyle PLA2378- OPEN BOX

2000W Max Class A/B 2-Channel Power Series Car Amplifier

PLA2378 big DISCONTINUED
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Pyle PLA2378- OPEN BOX

2000W Max Class A/B 2-Channel Power Series Car Amplifier

• 1000W Max x 2 Chan. @ 4 ohm
• 2000W Max x 1 Chan. @ 4 ohm Bridged
• Preamp RCA Outputs
• Variable Crossover Network
• 3-Way Protection Circuitry

• 1000W Max x 2 Chan. @ 4 ohm
• 2000W Max x 1 Chan. @ 4 ohm Bridged
• Preamp RCA Outputs
• Variable Crossover Network
• 3-Way Protection Circuitry

Kole Audio KX2-1440 R/B

1440W Max 2-Channel Amplifier

KX2-1440 big DISCONTINUED
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Kole Audio KX2-1440 R/B

1440W Max 2-Channel Amplifier

1440W Max, 2-Channel Amplifier • 300W x 2 chan. @ 4 Ohm • 360W x 2 chan. @ 2 Ohm • MOSFET power supply • top vent accelerated cooling • 3-way protection circuitry • platinum plated RCA connectors • remote bass control

1440W Max, 2-Channel Amplifier • 300W x 2 chan. @ 4 Ohm • 360W x 2 chan. @ 2 Ohm • MOSFET power supply • top vent accelerated cooling • 3-way protection circuitry • platinum plated RCA connectors • remote bass control

Valor VPA402

500W Max, 2-Channel Amplifier (VPA-402)

VPA402 big DISCONTINUED
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Valor VPA402

500W Max, 2-Channel Amplifier (VPA-402)

VPA Series 2-Channel Class AB Car Amplifier • 100W x 2 chan. @ 4 ohm • 150W x 2 chan. @ 2 ohm • 500W x 1 chan. Max • Speaker-level inputs • Adjustable gain control

VPA Series 2-Channel Class AB Car Amplifier • 100W x 2 chan. @ 4 ohm • 150W x 2 chan. @ 2 ohm • 500W x 1 chan. Max • Speaker-level inputs • Adjustable gain control

Soundstream TRX2.440 R/B

440W RMS, Tarantula Series 2-Channel Amplifier

TRX2.440 big DISCONTINUED
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Soundstream TRX2.440 R/B

440W RMS, Tarantula Series 2-Channel Amplifier

Tarantula Series 2-Channel Car Amplifier • 440W RMS • 220W x 2-Chan @ 2 Ohm • 130W x 2-Chan @ 4 Ohm • IDI (Intelligent Distress Indicator) • Tri-Guard System Protection Circuitry • OEM Floating Ground Input

Tarantula Series 2-Channel Car Amplifier • 440W RMS • 220W x 2-Chan @ 2 Ohm • 130W x 2-Chan @ 4 Ohm • IDI (Intelligent Distress Indicator) • Tri-Guard System Protection Circuitry • OEM Floating Ground Input

Audiobahn A275HCT R/B

1200W Max, High Current 2-Channel Amplifier (Factory Refurbished)

A275HCT big DISCONTINUED
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Audiobahn A275HCT R/B

1200W Max, High Current 2-Channel Amplifier (Factory Refurbished)

1200W Max, High Current Series 2-Channel Amplifier • 600W RMS @ 1 ohm • 300W RMS @ 2 ohm • 150W RMS @ 4 ohm • Blue Illuminated VU Meter • Beautiful Chrome Design Heatsink • S/N Ratio: 100dB • Bass Boost: 0-18dB

1200W Max, High Current Series 2-Channel Amplifier • 600W RMS @ 1 ohm • 300W RMS @ 2 ohm • 150W RMS @ 4 ohm • Blue Illuminated VU Meter • Beautiful Chrome Design Heatsink • S/N Ratio: 100dB • Bass Boost: 0-18dB

Autotek ATX1000.2-OPEN BOX

1000W Max 2-Channel Class AB ATX Series Amplifier

ATX1000.2 big DISCONTINUED
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Autotek ATX1000.2-OPEN BOX

1000W Max 2-Channel Class AB ATX Series Amplifier

• Max Power: 4 ohm: 250 watts x 2 chan., 2 ohm: 500 watts x 2 chan.
• PWM MOSFET Power Supply
• Bass Boost
• Soft Start Turn-On
• High Level Inputs
• Preamp RCA Outputs
• 4-Way System Protection Circuitry
• Flat Panel Heatsink Design
• Subsonic Filter

• Max Power: 4 ohm: 250 watts x 2 chan., 2 ohm: 500 watts x 2 chan.
• PWM MOSFET Power Supply
• Bass Boost
• Soft Start Turn-On
• High Level Inputs
• Preamp RCA Outputs
• 4-Way System Protection Circuitry
• Flat Panel Heatsink Design
• Subsonic Filter

Digital Audio DAB6002

600W, 2-Channel Class A/B MOSFET Amplifier

DAB6002 big DISCONTINUED
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Digital Audio DAB6002

600W, 2-Channel Class A/B MOSFET Amplifier

DAB Series 2-Channel Class A/B Car Amplifier • Total RMS Power: 400 Watts • Pulse Width Modulated MOSFET Power Supply • Preamp RCA Outputs • 4-Way System Protection • Frequency Response: 10-38,000 Hz

DAB Series 2-Channel Class A/B Car Amplifier • Total RMS Power: 400 Watts • Pulse Width Modulated MOSFET Power Supply • Preamp RCA Outputs • 4-Way System Protection • Frequency Response: 10-38,000 Hz

Blaupunkt GTA280

210W Max, GTA Series Class AB 2-Channel Amplifier

GTA280 big DISCONTINUED
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Blaupunkt GTA280

210W Max, GTA Series Class AB 2-Channel Amplifier

GTA Series 2-Channel Class AB Car Amplifier • 75W x 2 chan. @ 4 ohm • 105W x 2 chan. @ 2 ohm • 210W x 2 chan. Max • Direct AUX input • Speaker-level inputs • Preamp RCA outputs

GTA Series 2-Channel Class AB Car Amplifier • 75W x 2 chan. @ 4 ohm • 105W x 2 chan. @ 2 ohm • 210W x 2 chan. Max • Direct AUX input • Speaker-level inputs • Preamp RCA outputs

Xtant Xtant2.2

2-Channel Amplifier XTANT22

XTANT2.2 big DISCONTINUED
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Xtant Xtant2.2

2-Channel Amplifier XTANT22

2-Channel Amplifier • 200W RMS power output • Fully Regulated PWM Power Supply • N-Channel MOSFET Design

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2-Channel Amplifier • 200W RMS power output • Fully Regulated PWM Power Supply • N-Channel MOSFET Design

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    FAQ Frequently asked questions in Discontinued 2-Channel Amplifiers

    2 Channel Amplifiers Frequently Asked Questions (FAQ)
    Yes, many 2-channel amplifiers can be used in bridge mode to combine the power of both channels, making them suitable for powering a subwoofer and speakers at the same time. However, it's essential to check the amplifier's specifications and power ratings to ensure they match the impedance and power requirements of your subwoofer and speakers. Additionally, using a 2-channel amplifier for this purpose can result in power distribution challenges, as both the subwoofer and speakers may not receive optimal power for their specific frequency ranges.
    A 2-channel amplifier, also known as a stereo amplifier, is designed to power two speakers, typically a pair of front speakers or a pair of rear speakers. On the other hand, a mono amplifier, also known as a single-channel amplifier, is dedicated to powering a single speaker, usually a subwoofer. The primary difference lies in their application and configuration. While a 2-channel amplifier is suitable for powering multiple speakers, a mono amplifier is more focused on delivering high power output to a single speaker for deep bass reproduction.
    Yes, upgrading your factory car audio system with a 2-channel amplifier can significantly enhance the overall sound quality and volume. Factory audio systems often lack the power needed to drive aftermarket speakers properly. Adding a 2-channel amplifier allows you to provide more power to your front or rear speakers, resulting in improved clarity, detail, and dynamics. It's an excellent way to breathe new life into your car's audio system without the need for extensive modifications. Be sure to select an amplifier with an appropriate power rating and ensure compatibility with your existing audio setup.
    To ensure compatibility, consider factors like power output, impedance, and form factor. Check the power ratings of your speakers and subwoofers, and choose an amplifier that can deliver the required power at the appropriate impedance. Additionally, verify that the amplifier's dimensions fit within the available space in your vehicle. Some 2-channel amplifiers come with adjustable crossovers and gain controls, allowing you to fine-tune the audio output to match your specific setup. If you have any uncertainties, consult with an audio specialist or contact Sonic Electronix customer support for expert assistance.
    While 2-channel amplifiers can provide power to two speakers, they are typically not designed for bi-amping applications. Bi-amping involves using separate amplifiers for the tweeters and woofers of a speaker system to improve audio performance. To bi-amp speakers, you would require an additional set of channels dedicated to each driver. In this case, a multi-channel amplifier or a combination of mono and stereo amplifiers is more suitable. If bi-amping is a priority, consider looking into multi-channel amplifiers that offer specific configurations for bi-amping setups. Always check the specifications and features of the amplifier to ensure it can support bi-amping before making a purchase.
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