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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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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.
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.
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.
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.
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.

Speaker Level Inputs
Speaker level inputs are commonly referred to as high-level inputs and vice versa. This input type allows you to get your audio signal directly from the speaker wire in your vehicle, instead of using RCA cables. The advantage of this is factory integration, as most stock radios do not have RCA outputs to run amplifiers.
Maximum Input Gauge Size
This is the largest gauge wire that will fit into the power and ground terminals of this device. The lower the gauge number, the thicker the wire is. For example, a 4 gauge wire is thicker than an 8 gauge wire and thus has higher current carrying capacity. Always do your best to get this size wire to reduce the risk of damage to your components.
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You are currently viewing discontinued products.

Crunch PX1000.2 1000 Watts 2-Channel Class AB Car Amplifier w/ Free Amp Kit

Crunch PX1000.2 1000 Watts 2-Channel Class AB Car Amplifier w/ Free Amp Kit

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Crunch PX1000.2 1000 Watts 2-Channel Class AB Car Amplifier w/ Free Amp Kit

Crunch PX1000.2 1000 Watts 2-Channel Class AB Car Amplifier w/ Free Amp Kit

• 250 Watts Max x 2 @ 4 ohm
• 500 Watts Max x 2 @ 2 ohm
• 1000 Watts Max x 1 Bridged @ 4 ohm
• Total Peak Power: 1000 Watts
• Speaker-level (high-level) inputs
• Variable high-pass filter: 120 - 3000 Hz
• Variable low-pass filter: 50 - 250 Hz
• Variable Bass Boost: 0 to +12 dB bass boost

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• 250 Watts Max x 2 @ 4 ohm
• 500 Watts Max x 2 @ 2 ohm
• 1000 Watts Max x 1 Bridged @ 4 ohm
• Total Peak Power: 1000 Watts
• Speaker-level (high-level) inputs
• Variable high-pass filter: 120 - 3000 Hz
• Variable low-pass filter: 50 - 250 Hz
• Variable Bass Boost: 0 to +12 dB bass boost

MB Quart XA1-240.2_XKIT82

240W 2-Channel X-Line Series Class SQ A/B Amplifier + FREE 100% Copper, 2-Channel True Spec 8 Gauge Amplifier Installation Kit

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MB Quart XA1-240.2_XKIT82

240W 2-Channel X-Line Series Class SQ A/B Amplifier + FREE 100% Copper, 2-Channel True Spec 8 Gauge Amplifier Installation Kit

• RMS: 60W x 2 @ 4 ohm, 120W x 4 @ 2 ohm , Bridged: 240W x 1 @ 4 ohm
• Fluid-FETS hand selected insulated MOSFETS
• Q-Stasis preamp stage with wide input range
• Elaborate preamplifier with extended control
• Frequency Response: 10 - 45,000 Hz
• 8 Gauge 2-Channel Complete Amplifier Installation Kit

• RMS: 60W x 2 @ 4 ohm, 120W x 4 @ 2 ohm , Bridged: 240W x 1 @ 4 ohm
• Fluid-FETS hand selected insulated MOSFETS
• Q-Stasis preamp stage with wide input range
• Elaborate preamplifier with extended control
• Frequency Response: 10 - 45,000 Hz
• 8 Gauge 2-Channel Complete Amplifier Installation Kit

Autotek MMA2000.2 2 Channel Amplifier w/ Complete 4 AWG Amp Kit

2000W 2-Channel Mean Machine Series Car Amplifier + Amp Kit

MMA2000.2_BAK42 big DISCONTINUED
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Autotek MMA2000.2 2 Channel Amplifier w/ Complete 4 AWG Amp Kit

2000W 2-Channel Mean Machine Series Car Amplifier + Amp Kit

• RMS: 500W x 2 @ 4 ohm, 1000W x 2 @ 2 ohm, Bridged: 2000W x 1 @ 4 ohm
• Total Peak Power: 2000W
• Pro- Fi High Speed MOSFETs
• Auto-Step PWM MOSFET Power Supply
• Complete 4 Gauge 2-Channel Amplifier Installation Kit

• RMS: 500W x 2 @ 4 ohm, 1000W x 2 @ 2 ohm, Bridged: 2000W x 1 @ 4 ohm
• Total Peak Power: 2000W
• Pro- Fi High Speed MOSFETs
• Auto-Step PWM MOSFET Power Supply
• Complete 4 Gauge 2-Channel Amplifier Installation Kit

Rockford Fosgate Prime R150X2 R150 150 Watt RMS 2-Channel Amp+Premium Amp Kit

150W RMS 2-Channel Class AB Prime Series Full Range Amplifier Package

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Rockford Fosgate Prime R150X2 R150 150 Watt RMS 2-Channel Amp+Premium Amp Kit

150W RMS 2-Channel Class AB Prime Series Full Range Amplifier Package

• 50W x 2 Chan. @ 4 ohm
• 75W x 2 Chan. @ 2 ohm
• 150W x 1 Chan. @ 4 ohm Bridged
• Variable Bass Boost
• Variable High-Pass Crossover
• CEA-2006 Compliant
• Soft-Start Turn On

• 50W x 2 Chan. @ 4 ohm
• 75W x 2 Chan. @ 2 ohm
• 150W x 1 Chan. @ 4 ohm Bridged
• Variable Bass Boost
• Variable High-Pass Crossover
• CEA-2006 Compliant
• Soft-Start Turn On

New Rockford Fosgate R150X2 2 Channel Amp Car Amplifier + Amp Kit + Capacitor

New Rockford Fosgate R150X2 2 Channel Amp Car Amplifier + Amp Kit + Capacitor

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New Rockford Fosgate R150X2 2 Channel Amp Car Amplifier + Amp Kit + Capacitor

New Rockford Fosgate R150X2 2 Channel Amp Car Amplifier + Amp Kit + Capacitor

• 50W x 2 Chan. @ 4 ohm
• 75W x 2 Chan. @ 2 ohm
• 150W x 1 Chan. @ 4 ohm Bridged
• Variable Bass Boost
• Variable High-Pass Crossover
• CEA-2006 Compliant
• Soft-Start Turn On

• 50W x 2 Chan. @ 4 ohm
• 75W x 2 Chan. @ 2 ohm
• 150W x 1 Chan. @ 4 ohm Bridged
• Variable Bass Boost
• Variable High-Pass Crossover
• CEA-2006 Compliant
• Soft-Start Turn On

Image Dynamics I2300_XKIT82

250W RMS, 2-Channel Class AB i Series Car Amplifier + FREE 100% Copper, 2-Channel True Spec 8 Gauge Amplifier Installation Kit

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Image Dynamics I2300_XKIT82

250W RMS, 2-Channel Class AB i Series Car Amplifier + FREE 100% Copper, 2-Channel True Spec 8 Gauge Amplifier Installation Kit

• RMS: 75W x 2 @ 4 ohm, 125W x 2 @ 2 ohm
• 250W RMS x 1 Channel @ 4 Ohm Bridged
• Pulse Width Modulated MOSFET Power Supply
• LED Status Indicator
• Fully Adjustable Bass EQ
• 3-Way System Protection
• Low Level Line Inputs
• Aluminum Finned Heatsink
• 8 Gauge 2-Channel Complete Amplifier Installation Kit

• RMS: 75W x 2 @ 4 ohm, 125W x 2 @ 2 ohm
• 250W RMS x 1 Channel @ 4 Ohm Bridged
• Pulse Width Modulated MOSFET Power Supply
• LED Status Indicator
• Fully Adjustable Bass EQ
• 3-Way System Protection
• Low Level Line Inputs
• Aluminum Finned Heatsink
• 8 Gauge 2-Channel Complete Amplifier Installation Kit

Crunch PD800.2 800w 2-Channel Amplifier Car Audio Power Drive Class AB+Amp Kit

800W Max Power Drive Series 2-Ohm Stable Bridgeable 2-Channel Amplifier + Complete 8 Gauge Amplifier Wiring Kit Package

PD 800.2, BAK82 big DISCONTINUED
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Crunch PD800.2 800w 2-Channel Amplifier Car Audio Power Drive Class AB+Amp Kit

800W Max Power Drive Series 2-Ohm Stable Bridgeable 2-Channel Amplifier + Complete 8 Gauge Amplifier Wiring Kit Package

• 225 Watts RMS x 2 @ 4 ohm
• 550 Watts RMS x 2 @ 2 ohm
• Bridged: 1100 Watts RMS x 1 @ 4 ohm
• Total Peak Power: 2000 Watts
• Variable high-pass filter: 60 - 1200 Hz
• Variable low-pass filter: 30 - 250 Hz
• Variable Bass Boost: 0 to +9 dB bass boost at 50 Hz
• Dimensions: 11.4"W x 12"L x 3.8"H

100

• 225 Watts RMS x 2 @ 4 ohm
• 550 Watts RMS x 2 @ 2 ohm
• Bridged: 1100 Watts RMS x 1 @ 4 ohm
• Total Peak Power: 2000 Watts
• Variable high-pass filter: 60 - 1200 Hz
• Variable low-pass filter: 30 - 250 Hz
• Variable Bass Boost: 0 to +9 dB bass boost at 50 Hz
• Dimensions: 11.4"W x 12"L x 3.8"H

Autotek SS1500.2 Super Sport 1500w 2-Channel Car Amplifier Class A/B + Amp Kit

1500W Peak Super Sport Class-A/B 2-Channel 2-Ohm Stable Amplifier + Complete 8 Gauge Amplifier Wiring Kit Package

SS1500.2, BAK82 big DISCONTINUED
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Autotek SS1500.2 Super Sport 1500w 2-Channel Car Amplifier Class A/B + Amp Kit

1500W Peak Super Sport Class-A/B 2-Channel 2-Ohm Stable Amplifier + Complete 8 Gauge Amplifier Wiring Kit Package

• 325 Watts Peak x 2 @ 4 ohm
• 750 Watts Peak x 2 @ 2 ohm
• 1500 Watts Peak x 1 @ 4 ohm, Bridged
• Total Peak Power: 1500 Watts
• Built-In High and Low Pass Filters
• Heavy Duty Aluminum Heatsink
• Dimensions: 12.3" W x 10.25" L x 2" H

97

• 325 Watts Peak x 2 @ 4 ohm
• 750 Watts Peak x 2 @ 2 ohm
• 1500 Watts Peak x 1 @ 4 ohm, Bridged
• Total Peak Power: 1500 Watts
• Built-In High and Low Pass Filters
• Heavy Duty Aluminum Heatsink
• Dimensions: 12.3" W x 10.25" L x 2" H

Autotek SS1000.2 Super Sport 1000w 2-Channel Car Amplifier Class A/B + Amp Kit

1000W Max Super Sport Series Class-A/B 2-Channel 2 Ohm Stable Amplifier + 8 Gauge Wiring Kit Package

SS1000.2, BAK82 big DISCONTINUED
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Autotek SS1000.2 Super Sport 1000w 2-Channel Car Amplifier Class A/B + Amp Kit

1000W Max Super Sport Series Class-A/B 2-Channel 2 Ohm Stable Amplifier + 8 Gauge Wiring Kit Package

• 250 Watts Peak x 2 @ 4 ohm
• 500 Watts Peak x 2 @ 2 ohm
• 1000 Watts Peak x 1 @ 4 ohm, Bridged
• Total Peak Power: 1000 Watts
• High and Low Pass Filters
• 0/6/12 dB Bass Boost
• Heavy Duty Aluminum Heatsink
• 10.38" W x 10.25" L x 2" H

97

• 250 Watts Peak x 2 @ 4 ohm
• 500 Watts Peak x 2 @ 2 ohm
• 1000 Watts Peak x 1 @ 4 ohm, Bridged
• Total Peak Power: 1000 Watts
• High and Low Pass Filters
• 0/6/12 dB Bass Boost
• Heavy Duty Aluminum Heatsink
• 10.38" W x 10.25" L x 2" H

EXCLUSIVE

JBL GX-A602 280W 2-Channel GX Series Amplifier + 8 Gauge Amp Kit

2-Channel GX Series Amplifier (Includes Amplifier Installation Kit)

GX-A602 BAK82 big DISCONTINUED
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JBL GX-A602 280W 2-Channel GX Series Amplifier + 8 Gauge Amp Kit

2-Channel GX Series Amplifier (Includes Amplifier Installation Kit)

• RMS Power: 60W x 2 @ 4 ohm, 85W x 2 @ 2 ohm
• Total Peak Power: 280W
• High and Low Pass Filters
• Dimensions: 7-13/16" W x 8-1/8" L x 2-1/16" H

108

• RMS Power: 60W x 2 @ 4 ohm, 85W x 2 @ 2 ohm
• Total Peak Power: 280W
• High and Low Pass Filters
• Dimensions: 7-13/16" W x 8-1/8" L x 2-1/16" H

EXCLUSIVE

JBL GTR-102 with FREE 100% Copper True Spec Installation Kit

100W RMS 2-Channel Stadium Series Bluetooth Car Amplifier with Clari-Fi Technology and Party Mode + 100% Copper, True Spec 8 Gauge Amplifier Installation Kit

GTR-102 XKIT42 big DISCONTINUED
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JBL GTR-102 with FREE 100% Copper True Spec Installation Kit

100W RMS 2-Channel Stadium Series Bluetooth Car Amplifier with Clari-Fi Technology and Party Mode + 100% Copper, True Spec 8 Gauge Amplifier Installation Kit

• 100 Watts RMS x 2 @ 4 ohm
• 120 Watts RMS x 2 @ 2 ohm
• Total Peak Power: 700 Watts
• Clari-fi™ Technology
• Bluetooth Streaming
• ADAS Input
• Cabin mounted control panel

124

• 100 Watts RMS x 2 @ 4 ohm
• 120 Watts RMS x 2 @ 2 ohm
• Total Peak Power: 700 Watts
• Clari-fi™ Technology
• Bluetooth Streaming
• ADAS Input
• Cabin mounted control panel

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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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