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

Discontinued 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.
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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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Rockford Fosgate Power T400-4 (Black Box) Open Box

(Open Box) Power Series Compact 4-Channel Amplifier

T400-4 big DISCONTINUED
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Rockford Fosgate Power T400-4 (Black Box) Open Box

(Open Box) Power Series Compact 4-Channel Amplifier

Power Series 4-Channel Class AB Car Amplifier • 60W x 4 chan. @ 4 ohm • 100W x 4 chan. @ 2 ohm • 200W x 2 chan. @ 4 ohm • 400W x 1 chan. Max • MOSFET Power Supply • High-pass and low-pass crossover • Audiophile grade speaker connections

Power Series 4-Channel Class AB Car Amplifier • 60W x 4 chan. @ 4 ohm • 100W x 4 chan. @ 2 ohm • 200W x 2 chan. @ 4 ohm • 400W x 1 chan. Max • MOSFET Power Supply • High-pass and low-pass crossover • Audiophile grade speaker connections

Kicker ZX650.4 Factory R/B

06ZX650.4 ZX Series 4-Channel Amplifier

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Kicker ZX650.4 Factory R/B

06ZX650.4 ZX Series 4-Channel Amplifier

4-Channel ZX-Series Power Amplifier • 170W RMS x 4 @ 2 • KickBass • 4-Way Protection • Aluminum EndKaps • Adjustable Input Gain • High and Low Level Inputs

4-Channel ZX-Series Power Amplifier • 170W RMS x 4 @ 2 • KickBass • 4-Way Protection • Aluminum EndKaps • Adjustable Input Gain • High and Low Level Inputs

Kicker 43DXA2504 Car Audio 4 Channel Amp DXA250.4 CK8 Amplifier Kit Accessories

Kicker 43DXA2504 Car Audio 4 Channel Amp DXA250.4 CK8 Amplifier Kit Accessories

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Kicker 43DXA2504 Car Audio 4 Channel Amp DXA250.4 CK8 Amplifier Kit Accessories

Kicker 43DXA2504 Car Audio 4 Channel Amp DXA250.4 CK8 Amplifier Kit Accessories

• RMS Power: 30W x 4 @ 4 ohm, 60W x 4 @ 2 ohm
• Signal to Noise Ratio: >95dB
• CEA-2006 Compliant
• >Dimensions: 12-7/16" W x 7-3/16" D x 2-3/8" H

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• RMS Power: 30W x 4 @ 4 ohm, 60W x 4 @ 2 ohm
• Signal to Noise Ratio: >95dB
• CEA-2006 Compliant
• >Dimensions: 12-7/16" W x 7-3/16" D x 2-3/8" H

Pioneer GM-D8704

1200W Peak (600W RMS) GM Series Class-FD 4-Channel Amplifier with Remote Bass Knob

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Pioneer GM-D8704

1200W Peak (600W RMS) GM Series Class-FD 4-Channel Amplifier with Remote Bass Knob

• 100 watts x 4 channel @ 4 ohm
• 150 watts x 4 channel @ 2 ohm
• Bridged: 300 watts x 2 channel @ 4 ohm
• Total RMS Power: 600 watts
• Class FD 1 ohm Stable 4-Channel Amplifier

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• 100 watts x 4 channel @ 4 ohm
• 150 watts x 4 channel @ 2 ohm
• Bridged: 300 watts x 2 channel @ 4 ohm
• Total RMS Power: 600 watts
• Class FD 1 ohm Stable 4-Channel Amplifier

Hertz SP 4.900 (Open Box, Great)

1000W RMS Class D SPL Show Series 4-channel Full Range Car Amplifier

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Hertz SP 4.900 (Open Box, Great)

1000W RMS Class D SPL Show Series 4-channel Full Range Car Amplifier

• 4 Channel: 160 watts x 4 channel @ 4 ohm
• 4 Channel: 250 watts x 4 channel @ 2 ohm
• 3 Channel: 160 watts x 2 channel @ 4 ohm + 500 watts x 1 channel @ 4 ohm
• 3 Channel: 250 watts x 2 channel @ 2 ohm + 500 watts x 1 channel @ 4 ohm
• 2 Channel: 500 watts x 2 channel @ 4-ohm
• Total RMS Power: 1000 watts
• CEA-2006 Compliant
• Class D 2 ohm Stable 4-Channel-Channel Amplifier

• 4 Channel: 160 watts x 4 channel @ 4 ohm
• 4 Channel: 250 watts x 4 channel @ 2 ohm
• 3 Channel: 160 watts x 2 channel @ 4 ohm + 500 watts x 1 channel @ 4 ohm
• 3 Channel: 250 watts x 2 channel @ 2 ohm + 500 watts x 1 channel @ 4 ohm
• 2 Channel: 500 watts x 2 channel @ 4-ohm
• Total RMS Power: 1000 watts
• CEA-2006 Compliant
• Class D 2 ohm Stable 4-Channel-Channel Amplifier

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)

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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

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• 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

** CLOSEOUT!! ** JL Audio A6450 R/B

660W RMS, 6-Channel Class A/B A Series Amplifier

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** CLOSEOUT!! ** JL Audio A6450 R/B

660W RMS, 6-Channel Class A/B A Series Amplifier

A Series 6-Channel Class AB Car Amplifier • 110W x 6 chan. @ 2 ohm • MOSFET power supply • Absolute Symmetry™ Class A/B Circuit • Preamp RCA inputs

A Series 6-Channel Class AB Car Amplifier • 110W x 6 chan. @ 2 ohm • MOSFET power supply • Absolute Symmetry™ Class A/B Circuit • Preamp RCA inputs

Cerwin Vega B54 (Open Box, Great)

1200W Peak (600W RMS) Class D Stealth Bomber Series 4 Channel Car Amplifier

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Cerwin Vega B54 (Open Box, Great)

1200W Peak (600W RMS) Class D Stealth Bomber Series 4 Channel Car Amplifier

• 80 watts x 4 channel @ 4 ohm
• 150 watts x 4 channel @ 2 ohm
• Bridged: 300 watts x 2 channel @ 4 ohm
• Total RMS Power: 600 watts
• Class D 2 ohm Stable 4-Channel Amplifier

• 80 watts x 4 channel @ 4 ohm
• 150 watts x 4 channel @ 2 ohm
• Bridged: 300 watts x 2 channel @ 4 ohm
• Total RMS Power: 600 watts
• Class D 2 ohm Stable 4-Channel Amplifier

Sony XM-S400D

400W Peak (180W RMS) Class D S Series 4 Channel Car Amplifier

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Sony XM-S400D

400W Peak (180W RMS) Class D S Series 4 Channel Car Amplifier

• 45 watts x 4 channel @ 4 ohm
• Total RMS Power: 180 watts
• Class D 4 ohm Stable 4-Channel Amplifier

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• 45 watts x 4 channel @ 4 ohm
• Total RMS Power: 180 watts
• Class D 4 ohm Stable 4-Channel Amplifier

Kicker ZX700.5 Factory R/B

06ZX700.5 ZX Series 5-Channel Amplifier with Class D Sub Channel & Bass Remote

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Kicker ZX700.5 Factory R/B

06ZX700.5 ZX Series 5-Channel Amplifier with Class D Sub Channel & Bass Remote

5-Channel amplifier with Class D fifth channel • 70W x 4 + 210W x 1 @ 4 ohm • 85W x 4 + 420W x 1 @ 2 ohm • Bass Boost Remote Control • CEA-2006 Compliant • High Pass, Low Pass, or Full-Pass selectable

1

5-Channel amplifier with Class D fifth channel • 70W x 4 + 210W x 1 @ 4 ohm • 85W x 4 + 420W x 1 @ 2 ohm • Bass Boost Remote Control • CEA-2006 Compliant • High Pass, Low Pass, or Full-Pass selectable

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)

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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

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• 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

Alpine R2-A60F (Like New (Open Box))

600W RMS Class D R-Series 4 Channel Car Amplifier

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Alpine R2-A60F (Like New (Open Box))

600W RMS Class D R-Series 4 Channel Car Amplifier

• 100 watts x 4 channel @ 4 ohm
• 150 watts x 4 channel @ 2 ohm
• Bridged: 300 watts x 2 channel @ 4 ohm
• Total RMS Power: 600 watts
• Class D 2 ohm Stable 4-Channel Amplifier

• 100 watts x 4 channel @ 4 ohm
• 150 watts x 4 channel @ 2 ohm
• Bridged: 300 watts x 2 channel @ 4 ohm
• Total RMS Power: 600 watts
• Class D 2 ohm Stable 4-Channel Amplifier

Hifonics BXX1200.4 Brutus 1200W RMS A/B 4 Channel Speaker Car Amplifier (2 Pack)

Hifonics BXX1200.4 Brutus 1200W RMS A/B 4 Channel Speaker Car Amplifier (2 Pack)

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Hifonics BXX1200.4 Brutus 1200W RMS A/B 4 Channel Speaker Car Amplifier (2 Pack)

Hifonics BXX1200.4 Brutus 1200W RMS A/B 4 Channel Speaker Car Amplifier (2 Pack)

• 150W Max x 4 @ 4 ohm
• 300W Max x 4 @ 2 ohm
• 600W Max x 2 @ 4 ohm, bridged
• Total Peak Power: 1200 Watts
• Low Pass and High Pass Filters
• 0-10 Bass Boost
• Aluminum Heatsink
• 9" W x 15.6" L x 2.5" H

• 150W Max x 4 @ 4 ohm
• 300W Max x 4 @ 2 ohm
• 600W Max x 2 @ 4 ohm, bridged
• Total Peak Power: 1200 Watts
• Low Pass and High Pass Filters
• 0-10 Bass Boost
• Aluminum Heatsink
• 9" W x 15.6" L x 2.5" H

Deaf Bonce MFA 4.220 (Open Box, Great)

1320W RMS Class D Machete Series 4 Channel Car Amplifier

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Deaf Bonce MFA 4.220 (Open Box, Great)

1320W RMS Class D Machete Series 4 Channel Car Amplifier

• 220 watts x 4 channel @ 4 ohm
• 330 watts x 4 channel @ 2 ohm
• Bridged: 660 watts x 2 channel @ 4 ohm
• Total RMS Power: 1320 watts
• Class D 2 ohm Stable 4-Channel Amplifier

• 220 watts x 4 channel @ 4 ohm
• 330 watts x 4 channel @ 2 ohm
• Bridged: 660 watts x 2 channel @ 4 ohm
• Total RMS Power: 1320 watts
• Class D 2 ohm Stable 4-Channel Amplifier

Rockford Fosgate Power T1000-4 (2009 Edition) Open Box

(Open Box) 1000W RMS, Power Series 4-Channel Amplifier (T10004)

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Rockford Fosgate Power T1000-4 (2009 Edition) Open Box

(Open Box) 1000W RMS, Power Series 4-Channel Amplifier (T10004)

Power Series Class DB Monoblock Car Amplifier • 150W x 4 Chan. @ 4 Ohm • 250W x 4 Chan. @ 2 Ohm • 500W x 2 Chan. @ 4 Ohm • Discrete Surface Mount Components • MEHSA MOSFET Power Supply • Utilizes TO-247 MOSFETs •

Power Series Class DB Monoblock Car Amplifier • 150W x 4 Chan. @ 4 Ohm • 250W x 4 Chan. @ 2 Ohm • 500W x 2 Chan. @ 4 Ohm • Discrete Surface Mount Components • MEHSA MOSFET Power Supply • Utilizes TO-247 MOSFETs •

JL Audio Slash 300/4v3

300W RMS 4-Channel Slash v3 Series Class A/B Full-Range Amplifier

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JL Audio Slash 300/4v3

300W RMS 4-Channel Slash v3 Series Class A/B Full-Range Amplifier

• RMS: 75W x 1 @ 4 ohm, 75W x 1 @ 2 ohm, 75W x 1 @ 1.5 ohm
• Total RMS Power: 300W
• R.I.P.S. (Regulated, Intelligent Power Supply)
• Dual N-Channel MOSFET power supply
• Absolute Symmetry™ Class A/B Circuit
• 13.4"L x 9.25"W x 2.36"H

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• RMS: 75W x 1 @ 4 ohm, 75W x 1 @ 2 ohm, 75W x 1 @ 1.5 ohm
• Total RMS Power: 300W
• R.I.P.S. (Regulated, Intelligent Power Supply)
• Dual N-Channel MOSFET power supply
• Absolute Symmetry™ Class A/B Circuit
• 13.4"L x 9.25"W x 2.36"H

Hifonics 1000 Watt 4 Channel Class A/B Bridgeable Car Amp Amplifier (2 Pack)

Hifonics 1000 Watt 4 Channel Class A/B Bridgeable Car Amp Amplifier (2 Pack)

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Hifonics 1000 Watt 4 Channel Class A/B Bridgeable Car Amp Amplifier (2 Pack)

Hifonics 1000 Watt 4 Channel Class A/B Bridgeable Car Amp Amplifier (2 Pack)

• 125 Watts Peak x 4 @ 4 ohm
• 250 Watts Peak x 4 @ 2 ohm
• Total Peak Power: 500 Watts
• Low-Pass Filter and High-Pass Filter
• Variable Bass Boost
• Aluminum Heatsink
• 15.7" W x 10" L x 2.4" H

1

• 125 Watts Peak x 4 @ 4 ohm
• 250 Watts Peak x 4 @ 2 ohm
• Total Peak Power: 500 Watts
• Low-Pass Filter and High-Pass Filter
• Variable Bass Boost
• Aluminum Heatsink
• 15.7" W x 10" L x 2.4" H

Hifonics Watt 4 Channel Class A/B Bridgeable Car Amp Amplifier (2 Pack)

Hifonics Watt 4 Channel Class A/B Bridgeable Car Amp Amplifier (2 Pack)

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Hifonics Watt 4 Channel Class A/B Bridgeable Car Amp Amplifier (2 Pack)

Hifonics Watt 4 Channel Class A/B Bridgeable Car Amp Amplifier (2 Pack)

• 250 Watts Peak x 4 @ 4 ohm
• 500 Watts Peak x 4 @ 2 ohm
• Total Peak Power: 2,000 Watts
• High- and Low-Pass Filterse
• Variable Bass Boost
• Aluminum Heatsink
• 22" W x 10" L x 6" H

4

• 250 Watts Peak x 4 @ 4 ohm
• 500 Watts Peak x 4 @ 2 ohm
• Total Peak Power: 2,000 Watts
• High- and Low-Pass Filterse
• Variable Bass Boost
• Aluminum Heatsink
• 22" W x 10" L x 6" H

Crunch Power Drive 1000W Max 4-Channel Class A/B Bridgeable Amplifier (4 Pack)

Crunch Power Drive 1000W Max 4-Channel Class A/B Bridgeable Amplifier (4 Pack)

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Crunch Power Drive 1000W Max 4-Channel Class A/B Bridgeable Amplifier (4 Pack)

Crunch Power Drive 1000W Max 4-Channel Class A/B Bridgeable Amplifier (4 Pack)

• 125 Watts Max x 4 @ 4 ohm
• 250 Watts Max x 4 @ 2 ohm
• Bridged: 500 Watts Max x 2 @ 4 ohm
• Total Peak Power: 1000 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 14.2"L x 3.8"H

• 125 Watts Max x 4 @ 4 ohm
• 250 Watts Max x 4 @ 2 ohm
• Bridged: 500 Watts Max x 2 @ 4 ohm
• Total Peak Power: 1000 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 14.2"L x 3.8"H

Soundstream Rubicon Nano RN4.1400D

1400 Watt Peak (700W RMS) Rubicon Nano Series 4-Channel Full-Range Amplifier

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Soundstream Rubicon Nano RN4.1400D

1400 Watt Peak (700W RMS) Rubicon Nano Series 4-Channel Full-Range Amplifier

• 125 Watts RMS x 4 @ 4 ohm
• 175 Watts RMS x 4 @ 2 ohm
• Total Peak Power: 1400 Watts
• 3-way protection circuitry (thermal, overload, and speaker short protection)
• Heavy duty hybrid aluminum alloy heat-sink for extreme heat dissipation
• Dimensions: 6.5"W x 9"L x 1.5"H

7

• 125 Watts RMS x 4 @ 4 ohm
• 175 Watts RMS x 4 @ 2 ohm
• Total Peak Power: 1400 Watts
• 3-way protection circuitry (thermal, overload, and speaker short protection)
• Heavy duty hybrid aluminum alloy heat-sink for extreme heat dissipation
• Dimensions: 6.5"W x 9"L x 1.5"H

Deaf Bonce MFA 4.80 (Open Box, Good)

480W RMS Class D Machete Series 4 Channel Car Amplifier

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Deaf Bonce MFA 4.80 (Open Box, Good)

480W RMS Class D Machete Series 4 Channel Car Amplifier

• 80 watts x 4 channel @ 4 ohm
• 120 watts x 4 channel @ 2 ohm
• Bridged: 240 watts x 2 channel @ 4 ohm
• Total RMS Power: 480 watts
• Class D 2 ohm Stable 4-Channel Amplifier

• 80 watts x 4 channel @ 4 ohm
• 120 watts x 4 channel @ 2 ohm
• Bridged: 240 watts x 2 channel @ 4 ohm
• Total RMS Power: 480 watts
• Class D 2 ohm Stable 4-Channel Amplifier

Kenwood eXcelon XR400-4

400W eXcelon Series 4-Channel Reference XR Stereo Bridgeable Class D Car Power Amplifier (XR4004)

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Kenwood eXcelon XR400-4

400W eXcelon Series 4-Channel Reference XR Stereo Bridgeable Class D Car Power Amplifier (XR4004)

• 75W x 4-Chan. @ 4 ohm
• 100W x 4-Chan. @ 2 ohm
• 200W x 2 Chan. @ 4 ohm
• 3-Way System Protection
• 4/3/2/1 Channel Operation
• 4 Gauge Power and Ground Inputs
• Extremely Thin Design

3

• 75W x 4-Chan. @ 4 ohm
• 100W x 4-Chan. @ 2 ohm
• 200W x 2 Chan. @ 4 ohm
• 3-Way System Protection
• 4/3/2/1 Channel Operation
• 4 Gauge Power and Ground Inputs
• Extremely Thin Design

Rockford Fosgate M400-4D 400W 4-Channel Full-Range Class-D Amplifier + Amp Kit

Rockford Fosgate M400-4D 400W 4-Channel Full-Range Class-D Amplifier + Amp Kit

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Rockford Fosgate M400-4D 400W 4-Channel Full-Range Class-D Amplifier + Amp Kit

Rockford Fosgate M400-4D 400W 4-Channel Full-Range Class-D Amplifier + Amp Kit

• 4 ohm: 75 watts x 4 chan.
• 2 ohm: 100 watts x 4 chan.
• Bridged, 4 ohm: 200 watts x 2 chan.
• CEA-2006 compliant amplifier
• CE Compliant
• UV resistant and Salt-fog marine protection
• Cast aluminum heatsink
• Tri-stage protection covers thermal, over-current and short circuits
• Marine grade two part epoxy coating on circuit boards
• Marine grade stainless steel hardware
• Preamp RCA outputs to daisy chain multiple amps

69

• 4 ohm: 75 watts x 4 chan.
• 2 ohm: 100 watts x 4 chan.
• Bridged, 4 ohm: 200 watts x 2 chan.
• CEA-2006 compliant amplifier
• CE Compliant
• UV resistant and Salt-fog marine protection
• Cast aluminum heatsink
• Tri-stage protection covers thermal, over-current and short circuits
• Marine grade two part epoxy coating on circuit boards
• Marine grade stainless steel hardware
• Preamp RCA outputs to daisy chain multiple amps

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)

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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

Planet Audio PL1600.4

1600W Peak 4-Channel Pulse Series Bridgeable Class A/B Car Amplifier

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Planet Audio PL1600.4

1600W Peak 4-Channel Pulse Series Bridgeable Class A/B Car Amplifier

• 150 Watts RMS x 4 @ 4 ohm
• 300 Watts RMS x 4 @ 2 ohm
• 400 Watts RMS x 2 @ Bridged
• Total Peak Power: 1600 Watts
• Speaker-level (high-level) inputs
• Frequency Response: 9Hz - 50kHz
• Fixed high-pass filter: 200Hz
• Variable low-pass filter: 35 Hz to 160 Hz

3

• 150 Watts RMS x 4 @ 4 ohm
• 300 Watts RMS x 4 @ 2 ohm
• 400 Watts RMS x 2 @ Bridged
• Total Peak Power: 1600 Watts
• Speaker-level (high-level) inputs
• Frequency Response: 9Hz - 50kHz
• Fixed high-pass filter: 200Hz
• Variable low-pass filter: 35 Hz to 160 Hz

Lowest price in 30 days

Kicker 43DXA2504 4-Channel 60Wx4 Car Audio Amplifier+(4) 6x8" Speakers+Amp Kit

500W Max (250W RMS) DX-Series Full Range 4 Channel Amplifier Package

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Kicker 43DXA2504 4-Channel 60Wx4 Car Audio Amplifier+(4) 6x8" Speakers+Amp Kit

500W Max (250W RMS) DX-Series Full Range 4 Channel Amplifier Package

• RMS Power: 30W x 4 @ 4 ohm, 60W x 4 @ 2 ohm
• Signal to Noise Ratio: >95dB
• CEA-2006 Compliant
• >Dimensions: 12-7/16" W x 7-3/16" D x 2-3/8" H

110

• RMS Power: 30W x 4 @ 4 ohm, 60W x 4 @ 2 ohm
• Signal to Noise Ratio: >95dB
• CEA-2006 Compliant
• >Dimensions: 12-7/16" W x 7-3/16" D x 2-3/8" H

Lowest price in 30 days

Kicker 43DXA2504 4-Channel 60Wx4 Car Audio Amplifier+(4) 6x8" Speakers+Amp Kit

500W Max (250W RMS) DX-Series Full Range 4 Channel Amplifier Package

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Kicker 43DXA2504 4-Channel 60Wx4 Car Audio Amplifier+(4) 6x8" Speakers+Amp Kit

500W Max (250W RMS) DX-Series Full Range 4 Channel Amplifier Package

• RMS Power: 30W x 4 @ 4 ohm, 60W x 4 @ 2 ohm
• Signal to Noise Ratio: >95dB
• CEA-2006 Compliant
• >Dimensions: 12-7/16" W x 7-3/16" D x 2-3/8" H

130

• RMS Power: 30W x 4 @ 4 ohm, 60W x 4 @ 2 ohm
• Signal to Noise Ratio: >95dB
• CEA-2006 Compliant
• >Dimensions: 12-7/16" W x 7-3/16" D x 2-3/8" H

Taramps DS 1200X4 (Open Box, Good)

1200W RMS Class D DS Series 4 Channel Car Amplifier

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Taramps DS 1200X4 (Open Box, Good)

1200W RMS Class D DS Series 4 Channel Car Amplifier

• 192 watts x 4 channel @ 4 ohm
• 300 watts x 4 channel @ 2 ohm
• Bridged: 600 watts x 2 channel @ 4 ohm
• Total RMS Power: 1200 watts
• Class D 2 ohm Stable 4-Channel Amplifier

• 192 watts x 4 channel @ 4 ohm
• 300 watts x 4 channel @ 2 ohm
• Bridged: 600 watts x 2 channel @ 4 ohm
• Total RMS Power: 1200 watts
• Class D 2 ohm Stable 4-Channel Amplifier

Sundown Audio SALT-200.4 (Open Box, Good)

1400W RMS Class D SALT Series 4-Channel Full Range Car Amplifier

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Sundown Audio SALT-200.4 (Open Box, Good)

1400W RMS Class D SALT Series 4-Channel Full Range Car Amplifier

• 200 watts x 4 channel @ 4 ohm
• 325 watts x 4 channel @ 2 ohm
• Bridged: 700 watts x 2 channel @ 4 ohm
• Total RMS Power: 1400 watts
• Class D 2 ohm Stable 4-Channel Amplifier

• 200 watts x 4 channel @ 4 ohm
• 325 watts x 4 channel @ 2 ohm
• Bridged: 700 watts x 2 channel @ 4 ohm
• Total RMS Power: 1400 watts
• Class D 2 ohm Stable 4-Channel Amplifier

Hertz SP 4.500 (Open Box, Good)

600W RMS Class D SPL Show Series 4-Channel Compact Full Range Car Amplifier

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Hertz SP 4.500 (Open Box, Good)

600W RMS Class D SPL Show Series 4-Channel Compact Full Range Car Amplifier

• 4 Channel: 90 watts x 4 channel @ 4 ohm
• 4 Channel: 150 watts x 4 channel @ 2 ohm
• 3 Channel: 80 watts x 2 channel @ 4 ohm + 330 watts x 1 channel @ 4 ohm
• 3 Channel: 145 watts x 2 channel @ 2 ohm + 300 watts x 1 channel @ 4 ohm
• 2 Channel: 300 watts x 2 channel @ 4-ohm
• Total RMS Power: 600 watts
• Class D 2 ohm Stable 4-Channel Marine Amplifier

• 4 Channel: 90 watts x 4 channel @ 4 ohm
• 4 Channel: 150 watts x 4 channel @ 2 ohm
• 3 Channel: 80 watts x 2 channel @ 4 ohm + 330 watts x 1 channel @ 4 ohm
• 3 Channel: 145 watts x 2 channel @ 2 ohm + 300 watts x 1 channel @ 4 ohm
• 2 Channel: 300 watts x 2 channel @ 4-ohm
• Total RMS Power: 600 watts
• Class D 2 ohm Stable 4-Channel Marine Amplifier

NVX XAD41 (Like New (Open Box))

1200W RMS X-Series Full-Bridge Class D 1-Ohm Stable 4-Channel Amplifier

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NVX XAD41 (Like New (Open Box))

1200W RMS X-Series Full-Bridge Class D 1-Ohm Stable 4-Channel Amplifier

• 100 watts x 4 channel @ 4 ohm
• 150 watts x 4 channel @ 2 ohm
• 300 watts x 4 channel @ 1 ohm
• Total RMS Power: 1200 watts
• CEA-2006 Compliant

• 100 watts x 4 channel @ 4 ohm
• 150 watts x 4 channel @ 2 ohm
• 300 watts x 4 channel @ 1 ohm
• Total RMS Power: 1200 watts
• CEA-2006 Compliant

Alpine X Series 700W 4 Channel Class D Power Density Car Amplifier (2 Pack)

Alpine X Series 700W 4 Channel Class D Power Density Car Amplifier (2 Pack)

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Alpine X Series 700W 4 Channel Class D Power Density Car Amplifier (2 Pack)

Alpine X Series 700W 4 Channel Class D Power Density Car Amplifier (2 Pack)

• 120 Watts RMS x 4 @ 4 ohm
• 715 Watts RMS x 4 @ 2 ohm
• 350 Watts RMS x 2 @ 4 ohm, Bridged
• CEA-2006 Compliant
• Low Pass and High Pass Filters
• 0 - 12dB Bass Boost
• Aluminum Heatsink
• Dimensions: 11-3/4" W x 7-5/8" L x 2" H

2

• 120 Watts RMS x 4 @ 4 ohm
• 715 Watts RMS x 4 @ 2 ohm
• 350 Watts RMS x 2 @ 4 ohm, Bridged
• CEA-2006 Compliant
• Low Pass and High Pass Filters
• 0 - 12dB Bass Boost
• Aluminum Heatsink
• Dimensions: 11-3/4" W x 7-5/8" L x 2" H

Alpine S2-A36F (Open Box, Good)

360W RMS Class D S-Series 4 Channel Car Amplifier

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Alpine S2-A36F (Open Box, Good)

360W RMS Class D S-Series 4 Channel Car Amplifier

• 60 watts x 4 channel @ 4 ohm
• 90 watts x 4 channel @ 2 ohm
• Bridged: 180 watts x 2 channel @ 4 ohm
• Total RMS Power: 360 watts
• Class D 2 ohm Stable 4-Channel Amplifier

• 60 watts x 4 channel @ 4 ohm
• 90 watts x 4 channel @ 2 ohm
• Bridged: 180 watts x 2 channel @ 4 ohm
• Total RMS Power: 360 watts
• Class D 2 ohm Stable 4-Channel Amplifier

NVX XAD42 (Open Box, Great)

3200W RMS X-Series Full-Bridge Class D 1-Ohm Stable 4-Channel Amplifier

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NVX XAD42 (Open Box, Great)

3200W RMS X-Series Full-Bridge Class D 1-Ohm Stable 4-Channel Amplifier

• 350 watts x 4 channel Watts RMS x 1 @ 4 ohm
• 400 watts x 4 channel Watts RMS x 1 @ 2 ohm
• 800 watts x 4 channel Watts RMS x 1 @ 1 ohm
• Total RMS Power: 3200 watts
• CEA-2006 Compliant

• 350 watts x 4 channel Watts RMS x 1 @ 4 ohm
• 400 watts x 4 channel Watts RMS x 1 @ 2 ohm
• 800 watts x 4 channel Watts RMS x 1 @ 1 ohm
• Total RMS Power: 3200 watts
• CEA-2006 Compliant

Avatar ATU-1000.4 (Open Box, Great)

1000W RMS Class AB Tsunami Series 4 Channel Car Amplifier

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Avatar ATU-1000.4 (Open Box, Great)

1000W RMS Class AB Tsunami Series 4 Channel Car Amplifier

• 150 watts x 4 channel @ 4 ohm
• 250 watts x 4 channel @ 2 ohm
• Bridged: 500 watts x 2 channel @ 4 ohm
• Total RMS Power: 1000 watts
• Class A/B 2 ohm Stable 4-Channel Amplifier

• 150 watts x 4 channel @ 4 ohm
• 250 watts x 4 channel @ 2 ohm
• Bridged: 500 watts x 2 channel @ 4 ohm
• Total RMS Power: 1000 watts
• Class A/B 2 ohm Stable 4-Channel Amplifier

NVX XQA10004 (Open Box, Great)

1000W RMS XQ-Series SQ Hi-Res Class D 4-Channel Amplifier with X-Boost

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NVX XQA10004 (Open Box, Great)

1000W RMS XQ-Series SQ Hi-Res Class D 4-Channel Amplifier with X-Boost

• 150 watts x 4 channel @ 4 ohm
• 250 watts x 4 channel @ 2 ohm
• Bridged: 500 watts x 2 channel @ 4 ohm
• Total RMS Power: 1000 watts
• Class D 2 ohm Stable 4-Channel-Channel Amplifier

• 150 watts x 4 channel @ 4 ohm
• 250 watts x 4 channel @ 2 ohm
• Bridged: 500 watts x 2 channel @ 4 ohm
• Total RMS Power: 1000 watts
• Class D 2 ohm Stable 4-Channel-Channel Amplifier

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)

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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

Soundstream Picasso Nano 1000W 4 Channel Class D Car Audio Amplifier (2 Pack)

Soundstream Picasso Nano 1000W 4 Channel Class D Car Audio Amplifier (2 Pack)

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Soundstream Picasso Nano 1000W 4 Channel Class D Car Audio Amplifier (2 Pack)

Soundstream Picasso Nano 1000W 4 Channel Class D Car Audio Amplifier (2 Pack)

• RMS: 140W x 4 @ 4 ohm, 250W x 4 @ 2 ohm, Bridged 250W x 2 @ 4 ohm
• Total Power: 1000W
• Pulse Width Modulated MOSFET power supply
• 4.75 W x 10.25 L x 1.50 H

5

• RMS: 140W x 4 @ 4 ohm, 250W x 4 @ 2 ohm, Bridged 250W x 2 @ 4 ohm
• Total Power: 1000W
• Pulse Width Modulated MOSFET power supply
• 4.75 W x 10.25 L x 1.50 H

Kicker 44KXA400.4 Car Audio 4 Channel Amp + NVX Premium Amp Kit

Kicker 44KXA4004 4 Channel Amp + NVX XKIT44 Amp Kit

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Kicker 44KXA400.4 Car Audio 4 Channel Amp + NVX Premium Amp Kit

Kicker 44KXA4004 4 Channel Amp + NVX XKIT44 Amp Kit

• 50 Watts RMS x 4 @ 4 ohm
•100 Watts RMS x 4 @ 2 ohm
• 800 Watts RMS x 2 @ 4 Ohm, Bridged
• CEA-2006 Compliant
• Aluminum Heatsink
• Dimensions: 8-5/16" W x 11-3/16" L x 2-1/8" H

80

• 50 Watts RMS x 4 @ 4 ohm
•100 Watts RMS x 4 @ 2 ohm
• 800 Watts RMS x 2 @ 4 Ohm, Bridged
• CEA-2006 Compliant
• Aluminum Heatsink
• Dimensions: 8-5/16" W x 11-3/16" L x 2-1/8" H

Massive Audio BP1000.4 v2 (Like New (Open Box))

1000W Peak (640W RMS) Class AB BLADE BP Series 4 Channel Car Amplifier

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Massive Audio BP1000.4 v2 (Like New (Open Box))

1000W Peak (640W RMS) Class AB BLADE BP Series 4 Channel Car Amplifier

• 80 watts x 4 channel @ 4 ohm
• 160 watts x 4 channel @ 2 ohm
• Bridged: 320 watts x 2 channel @ 4 ohm
• Total RMS Power: 640 watts
• Class A/B 2 ohm Stable 4-Channel Amplifier

• 80 watts x 4 channel @ 4 ohm
• 160 watts x 4 channel @ 2 ohm
• Bridged: 320 watts x 2 channel @ 4 ohm
• Total RMS Power: 640 watts
• Class A/B 2 ohm Stable 4-Channel Amplifier

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    FAQ Frequently asked questions in Discontinued 4-Channel Amplifiers

    4 Channel Amplifiers Frequently Asked Questions (FAQ)
    A 4-channel amplifier is a type of car audio amplifier that features four separate channels, each capable of powering a speaker or a pair of speakers. By distributing power across four channels, you can connect your front and rear speakers to the amplifier, significantly enhancing the overall sound quality and clarity in your car audio system. With a 4-channel amplifier, you can achieve a balanced soundstage, where the music seems to come from different directions, providing an immersive listening experience. Additionally, these amplifiers often come with adjustable crossovers and gain controls, allowing you to fine-tune the audio output for each set of speakers, optimizing the sound reproduction according to your preferences.
    Yes, many 4-channel amplifiers are bridgeable, allowing you to combine two channels to power a single speaker or subwoofer with higher output power. This bridging capability is useful if you have a pair of high-powered front speakers or a powerful subwoofer that requires more power than a single channel can provide. However, it's essential to check the amplifier's specifications and instructions to confirm its bridgeability and the recommended bridging configurations. Not all 4-channel amplifiers support bridging, and improper bridging can damage the amplifier or connected speakers. If you are unsure about bridging your 4-channel amplifier, consult the amplifier's manual or reach out to Sonic Electronix customer support for expert assistance.
    To select the right 4-channel amplifier for your speakers, consider their power handling capabilities and impedance. First, identify the RMS power rating of your front and rear speakers. The amplifier's RMS power output per channel should match or slightly exceed the RMS power rating of your speakers to ensure optimal performance without distortion. Next, check the impedance (measured in ohms) of your speakers, as well as the amplifier's minimum and maximum impedance ratings. Match the speaker impedance with the appropriate amplifier channels to prevent compatibility issues. For example, if your speakers have an impedance of 4 ohms, make sure the amplifier channels for those speakers can handle a 4-ohm load. Paying attention to these specifications ensures a seamless integration of your speakers with the 4-channel amplifier.
    Yes, a 4-channel amplifier can be used to power additional speakers, such as tweeters or coaxial speakers, in your car audio system. Beyond the front and rear speakers, a 4-channel amplifier has the flexibility to accommodate additional speaker types, provided that the total load impedance and power requirements of the amplifier's channels are within its specifications. For example, if your 4-channel amplifier has two unused channels, you can use them to power additional speakers for improved sound coverage and audio performance. Be cautious not to overload the amplifier, and ensure that the speakers' impedance and power handling align with the available channels to avoid damaging the amplifier or speakers. If you have questions about expanding your audio system with a 4-channel amplifier, seek expert advice from Sonic Electronix.
    A proper and safe installation of a 4-channel amplifier is essential for optimal performance and to prevent any electrical or mechanical issues. To ensure a successful installation, start by reading the amplifier's user manual thoroughly, as it contains specific instructions and guidelines for installation. Follow all safety precautions and use the appropriate wiring and connectors rated for the amplifier's power output. Securely mount the amplifier in a well-ventilated area, away from heat sources, and avoid placing it on carpeted surfaces. Route and secure all cables carefully to avoid interference and potential hazards. Double-check all connections to ensure they are tight and secure. If you are not confident in installing the amplifier yourself, consider seeking professional installation services to ensure a safe and expertly done installation that optimizes the performance of your 4-channel amplifier and car audio system.
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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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