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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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You are currently viewing discontinued products.

MB Quart NAU 660 Open Box

540W Max, Nautic Series 6-Channel Marine Amplifier (NAU660)

No picture DISCONTINUED
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MB Quart NAU 660 Open Box

540W Max, Nautic Series 6-Channel Marine Amplifier (NAU660)

Nautic Series 6-Channel Class A/B Marine Amplifier • UV And Salt Water Resistant • 60W x 6 Chan. @ 4 Ohm • 90W x 6 Chan. @ 2 Ohm • Full Range Line Outputs • 4-Way System Protection • Gold-Plated RCA Level Inputs

Nautic Series 6-Channel Class A/B Marine Amplifier • UV And Salt Water Resistant • 60W x 6 Chan. @ 4 Ohm • 90W x 6 Chan. @ 2 Ohm • Full Range Line Outputs • 4-Way System Protection • Gold-Plated RCA Level Inputs

RE Audio XTX-800.4 (XTX800.4) R/B

800W 4-Channel Full Range Digital XTX Series Car Amplifier

XTX-800.4 big DISCONTINUED
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RE Audio XTX-800.4 (XTX800.4) R/B

800W 4-Channel Full Range Digital XTX Series Car Amplifier

XTX Series 4-Channel Full Range Digital Car Amplifier • 800W Dynamic • 2-Way System Protection • Brushed Aluminum Alloy Convection Cooled Heatsink • Variable High/Low-Pass Filter • Selectable Bass Boost

XTX Series 4-Channel Full Range Digital Car Amplifier • 800W Dynamic • 2-Way System Protection • Brushed Aluminum Alloy Convection Cooled Heatsink • Variable High/Low-Pass Filter • Selectable Bass Boost

Alpine MRV-F345 Refurbished

4-Channel Class A/B Amplifier

MRV-F345 big DISCONTINUED
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Alpine MRV-F345 Refurbished

4-Channel Class A/B Amplifier

85 watts RMS x 4 at 2 ohm • BassEngine® with variable high-pass/low-pass crossovers and subsonic filter • Amp Link • preamp outputs

85 watts RMS x 4 at 2 ohm • BassEngine® with variable high-pass/low-pass crossovers and subsonic filter • Amp Link • preamp outputs

Boss CE1404

1400W Chaos Epic Series 4-Channel Power Amplifier with Line and Speaker Level Inputs

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Boss CE1404

1400W Chaos Epic Series 4-Channel Power Amplifier with Line and Speaker Level Inputs

Chaos Epic Series 4-Channel Power Amplifier • 680W RMS • 1400W Max • MOSFET Power Supply • LED Power and Protect Indicators • Variable Input Gain Control • 2-Way System Protection Circuitry • Heavy Duty Black Anodized Aluminum Heatsink

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Chaos Epic Series 4-Channel Power Amplifier • 680W RMS • 1400W Max • MOSFET Power Supply • LED Power and Protect Indicators • Variable Input Gain Control • 2-Way System Protection Circuitry • Heavy Duty Black Anodized Aluminum Heatsink

MB Quart NAU 460 Open Box

(Open Box) 360W Max, Nautic Series 4-Channel Marine Amplifier

NAU460 big DISCONTINUED
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MB Quart NAU 460 Open Box

(Open Box) 360W Max, Nautic Series 4-Channel Marine Amplifier

Nautic Series 4-Channel Class A/B Marine Amplifier • UV And Salt Water Resistant • 60W x 4 Chan. @ 4 Ohm • 90W x 4 Chan. @ 2 Ohm • Full Range Line Outputs • 4-Way System Protection • Gold-Plated RCA Level Inputs

Nautic Series 4-Channel Class A/B Marine Amplifier • UV And Salt Water Resistant • 60W x 4 Chan. @ 4 Ohm • 90W x 4 Chan. @ 2 Ohm • Full Range Line Outputs • 4-Way System Protection • Gold-Plated RCA Level Inputs

Hifonics TX4405 R/B

220W RMS Titan Series 4-Channel Amplifier

TX4405 big DISCONTINUED
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Hifonics TX4405 R/B

220W RMS Titan Series 4-Channel Amplifier

4-Channel Class-A/B Amplifier • 110W RMS x 4 @ 2 • 220W RMS x 2 @ 4 • Accu-Cross • Line Output • 18dB Bass Boost • Variable Input Sensitivity

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4-Channel Class-A/B Amplifier • 110W RMS x 4 @ 2 • 220W RMS x 2 @ 4 • Accu-Cross • Line Output • 18dB Bass Boost • Variable Input Sensitivity

Audiobahn + Hifonics Amplifer and Speaker Bundle

6-1/2" AS65J Car Speakers + Hifonics HFi55.4 4 Channel Amplifier + Kit + Sound Dampening

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Audiobahn + Hifonics Amplifer and Speaker Bundle

6-1/2" AS65J Car Speakers + Hifonics HFi55.4 4 Channel Amplifier + Kit + Sound Dampening

6-1/2" 2-Way AS Series Full Range Speaker • 100W RMS • HFi Series 4-Channel Class A/B Car Amplifier • MOSFET Power Supply • 4-Way System Protection Circuitry • Amplifier Kit • Sound Dampening Material

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6-1/2" 2-Way AS Series Full Range Speaker • 100W RMS • HFi Series 4-Channel Class A/B Car Amplifier • MOSFET Power Supply • 4-Way System Protection Circuitry • Amplifier Kit • Sound Dampening Material

Hifonics X1200.4-RB (Factory Refurbished)

1200W BRUTUS X-14 Series 4-Channel Class AB Car Amplifier

X1200.4 big DISCONTINUED
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Hifonics X1200.4-RB (Factory Refurbished)

1200W BRUTUS X-14 Series 4-Channel Class AB Car Amplifier

• Item Condition: Factory Refurbished
• RMS Power: 150W x 4 @ 4 ohm, 300W x 4 @ 2 ohm, 600W x 2 @ 4 ohm Bridged
• Total Peak Power: 1200W
• CEA-2006 Compliant/Preamp Outputs/LPF
• 17.72"W x 2.5"H x 9.49"L

• Item Condition: Factory Refurbished
• RMS Power: 150W x 4 @ 4 ohm, 300W x 4 @ 2 ohm, 600W x 2 @ 4 ohm Bridged
• Total Peak Power: 1200W
• CEA-2006 Compliant/Preamp Outputs/LPF
• 17.72"W x 2.5"H x 9.49"L

EXCLUSIVE

JL Audio + Alpine Amplified 4-Ch. High Fidelity System w/ 6.5" & 6x9" Speakers

JL Audio C3-650 6.5" Convertible Speakers + JL Audio C2-690tx 6x9" Coaxial Speakers + Alpine PDR-F50 4-Ch Class D Digital Amplifier + NVX Amp Kit

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JL Audio + Alpine Amplified 4-Ch. High Fidelity System w/ 6.5" & 6x9" Speakers

JL Audio C3-650 6.5" Convertible Speakers + JL Audio C2-690tx 6x9" Coaxial Speakers + Alpine PDR-F50 4-Ch Class D Digital Amplifier + NVX Amp Kit

• Mineral-Filled Polypropylene Cone
• Silk Dome Tweeter
• DMA-Optimized Motor System
• Symmetrical Roll Spider
• RMS Power: 85W x 4 @ 4 ohm
• CEA-2006 Compliant Amplifier
• Rotatable Illuminated Alpine Badge
• Top-Side Control Panel w/ Removable Cover
• Voltage ON/OFF Sensing for OEM Upgrade
• 4 Gauge 4-Channel X-Series Complete Amplifier Installation Kit
• For Car Audio Systems Up To 1000 Watts RMS
• Silver-Tinned 100% Virgin Copper
• 4-channel RCA Interconnect Cable

118

• Mineral-Filled Polypropylene Cone
• Silk Dome Tweeter
• DMA-Optimized Motor System
• Symmetrical Roll Spider
• RMS Power: 85W x 4 @ 4 ohm
• CEA-2006 Compliant Amplifier
• Rotatable Illuminated Alpine Badge
• Top-Side Control Panel w/ Removable Cover
• Voltage ON/OFF Sensing for OEM Upgrade
• 4 Gauge 4-Channel X-Series Complete Amplifier Installation Kit
• For Car Audio Systems Up To 1000 Watts RMS
• Silver-Tinned 100% Virgin Copper
• 4-channel RCA Interconnect Cable

NVX JAD800.4

True 1600 Watt Peak 800W RMS, Full Range Class D 4-Channel Amplifier (JAD-800.4)

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NVX JAD800.4

True 1600 Watt Peak 800W RMS, Full Range Class D 4-Channel Amplifier (JAD-800.4)

• 4 ohm: 125 watts x 4-Chan. RMS
• 2 ohm: 200 watts x 4-Chan. RMS
• Bridged, 4 ohm: 400 x 2 chan. RMS
• Pulse Width Modulated MOSFET Power Supply
• 4/3/2 Channel Operation

92

• 4 ohm: 125 watts x 4-Chan. RMS
• 2 ohm: 200 watts x 4-Chan. RMS
• Bridged, 4 ohm: 400 x 2 chan. RMS
• Pulse Width Modulated MOSFET Power Supply
• 4/3/2 Channel Operation

Power Acoustik Class AB 4-Ch Amplifier + 2 Pair of Massive Audio 5-1/4" Speakers

Power Acoustik GT4-400 400W 4-Channel Gothic Series Class AB Car Amplifier + Massive Audio DX 5 5-1/4" 2-Way DX Series Coaxial Car Speakers

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Power Acoustik Class AB 4-Ch Amplifier + 2 Pair of Massive Audio 5-1/4" Speakers

Power Acoustik GT4-400 400W 4-Channel Gothic Series Class AB Car Amplifier + Massive Audio DX 5 5-1/4" 2-Way DX Series Coaxial Car Speakers

• 30 Watts RMS x 4 @ 4 ohm
• 40 Watts RMS x 4 @ 2 ohm
• 90 Watts RMS x 2 @ 4 ohm, Bridged
• Total Peak Power: 400 Watts
• 4, 3 or 2 channel operation
• 3-way protection circuitry (thermal, overload, and speaker short protection)
• Frequency Response: 15 - 20,000 Hz
• Signal to Noise Ration: 100dB

10

• 30 Watts RMS x 4 @ 4 ohm
• 40 Watts RMS x 4 @ 2 ohm
• 90 Watts RMS x 2 @ 4 ohm, Bridged
• Total Peak Power: 400 Watts
• 4, 3 or 2 channel operation
• 3-way protection circuitry (thermal, overload, and speaker short protection)
• Frequency Response: 15 - 20,000 Hz
• Signal to Noise Ration: 100dB

EXCLUSIVE

Two Pair of JL Audio C3-600 + Polk Audio PA D4000.4

6.0" 2-Way Evolution C3 Series Convertible Component/Coaxial Car Speaker System + 800W RMS PA D Series Class-D 4-Channel Amplifier

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Two Pair of JL Audio C3-600 + Polk Audio PA D4000.4

6.0" 2-Way Evolution C3 Series Convertible Component/Coaxial Car Speaker System + 800W RMS PA D Series Class-D 4-Channel Amplifier

• 125 Watts RMS x 4 @ 4 ohm
• 2-Way Convertible Component/Coaxial Speakers System
• Mineral-Filled Polypropylene Cone
• 1" Silk Dome Tweeter
• DMA-Optimized Motor System
• Symmetrical Roll Spider
• CEA-2006 Compliant
• Frequency Response: 20 - 20,000 Hz
• Selectable crossover modes: LPF / FULL / HPF , with 10x Multiplier
• Dimensions: 6-3/4" W x 10-15/16" L x 1-13/16" H

19

• 125 Watts RMS x 4 @ 4 ohm
• 2-Way Convertible Component/Coaxial Speakers System
• Mineral-Filled Polypropylene Cone
• 1" Silk Dome Tweeter
• DMA-Optimized Motor System
• Symmetrical Roll Spider
• CEA-2006 Compliant
• Frequency Response: 20 - 20,000 Hz
• Selectable crossover modes: LPF / FULL / HPF , with 10x Multiplier
• Dimensions: 6-3/4" W x 10-15/16" L x 1-13/16" H

EXCLUSIVE

JL Audio + Alpine 4-Ch. High Fidelity System w/ Convertible 5x7"/6x8" Speakers

JL Audio C3-570 5x7"/6x8" Evolution C3 Convertible Speaker System + Alpine PDR-F50 PDR Series 4-Channel Class D Digital Amplifier + NVX Amp Kit

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JL Audio + Alpine 4-Ch. High Fidelity System w/ Convertible 5x7"/6x8" Speakers

JL Audio C3-570 5x7"/6x8" Evolution C3 Convertible Speaker System + Alpine PDR-F50 PDR Series 4-Channel Class D Digital Amplifier + NVX Amp Kit

• 2-Way Convertible Component/Coaxial Speakers System
• Mineral-Filled Polypropylene Cone
• 1" Silk Dome Tweeter
• DMA-Optimized Motor System
• Symmetrical Roll Spider
• RMS Power: 85W x 4 @ 4 ohm
• CEA-2006 Compliant Amplifier
• Rotatable Illuminated Alpine Badge
• Top-Side Control Panel w/ Removable Cover
• Voltage ON/OFF Sensing for OEM Upgrade
• 4 Gauge 4-Channel X-Series Complete Amplifier Installation Kit
• For Car Audio Systems Up To 1000 Watts RMS
• Silver-Tinned 100% Virgin Copper
• 4-channel RCA Interconnect Cable

89

• 2-Way Convertible Component/Coaxial Speakers System
• Mineral-Filled Polypropylene Cone
• 1" Silk Dome Tweeter
• DMA-Optimized Motor System
• Symmetrical Roll Spider
• RMS Power: 85W x 4 @ 4 ohm
• CEA-2006 Compliant Amplifier
• Rotatable Illuminated Alpine Badge
• Top-Side Control Panel w/ Removable Cover
• Voltage ON/OFF Sensing for OEM Upgrade
• 4 Gauge 4-Channel X-Series Complete Amplifier Installation Kit
• For Car Audio Systems Up To 1000 Watts RMS
• Silver-Tinned 100% Virgin Copper
• 4-channel RCA Interconnect Cable

Autotek AXL4050.4 (Factory Refurbished)

4000W 4-Channel AXL Series Class AB Car Amplifier

AXL4050.4 big DISCONTINUED
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Autotek AXL4050.4 (Factory Refurbished)

4000W 4-Channel AXL Series Class AB Car Amplifier

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

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

MB Quart OA800.4- OPEN BOX INCOMPLETE

800W 4-Channel Onyx Series Full Range Bridgeable Power Amplifier

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MB Quart OA800.4- OPEN BOX INCOMPLETE

800W 4-Channel Onyx Series Full Range Bridgeable Power Amplifier

• 100W x 4-Chan. @ 4 ohm
• 200W x 4-Chan. @ 2 ohm
• 400W x 2 Chan. @ 4 ohm
• 3-Way System Protection
• 4/3/2/1 Channel Operation
• 4 Gauge Power and Ground Inputs
• FLUID-FETS Circuit for Smooth Sound Quality

1

• 100W x 4-Chan. @ 4 ohm
• 200W x 4-Chan. @ 2 ohm
• 400W x 2 Chan. @ 4 ohm
• 3-Way System Protection
• 4/3/2/1 Channel Operation
• 4 Gauge Power and Ground Inputs
• FLUID-FETS Circuit for Smooth Sound Quality

Infinity Reference 5350a R/B

5-Channel Reference Series Amplifier (REF5350A)

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Infinity Reference 5350a R/B

5-Channel Reference Series Amplifier (REF5350A)

Reference Series Class AB 5-Channel Amplifier • 50W x 4 chan. + 150 watts x 1 chan. @ 4 ohm • 60W x 4 chan. + 300 watts x 1 chan. @ 2 ohm • 89W x 4 chan. Max • MOSFET power supply • Gold-plated preamp RCA outputs

Reference Series Class AB 5-Channel Amplifier • 50W x 4 chan. + 150 watts x 1 chan. @ 4 ohm • 60W x 4 chan. + 300 watts x 1 chan. @ 2 ohm • 89W x 4 chan. Max • MOSFET power supply • Gold-plated preamp RCA outputs

JL Audio Slash v2 300/4v2 R/B

(Factory Refurbished) 300W RMS, Slash Version 2 Series 4-Channel Amplifier

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JL Audio Slash v2 300/4v2 R/B

(Factory Refurbished) 300W RMS, Slash Version 2 Series 4-Channel Amplifier

Slash v2 Series 4-Channel Class AB Car Amplifier • 75W x 4 chan. @ 4 ohm • MOSFET power supply • Differential-balanced with RCA jack inputs • Preamp RCA outputs

Slash v2 Series 4-Channel Class AB Car Amplifier • 75W x 4 chan. @ 4 ohm • MOSFET power supply • Differential-balanced with RCA jack inputs • Preamp RCA outputs

VIBE Audio DEATHBOXS4-V1 Open Box

700W RMS (1400W Max) Death Box Series 4-Channel Car Amplifier

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VIBE Audio DEATHBOXS4-V1 Open Box

700W RMS (1400W Max) Death Box Series 4-Channel Car Amplifier

Death Box Series 4-Channel Class A/B Car Amplifier • 1400W Max • 175W x 4-Chan. @ 2 Ohm • Speaker-Level Inputs • 0 To +24 dB Bass Boost • Piano Black Finish • Gold Plated Speaker Terminals

Death Box Series 4-Channel Class A/B Car Amplifier • 1400W Max • 175W x 4-Chan. @ 2 Ohm • Speaker-Level Inputs • 0 To +24 dB Bass Boost • Piano Black Finish • Gold Plated Speaker Terminals

JL Audio G4500 R/B

(Refurbished)1000W Max, 4-Channel G-Series Amplifier

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JL Audio G4500 R/B

(Refurbished)1000W Max, 4-Channel G-Series Amplifier

JL Audio G-Series 4-Channel Class A/B Car Amplifier • 80W x 4 Chan. @ 4 ohm • 125W x 4 Chan. @ 2 ohm • Bridged 250W x 2 Chan. @ 4 ohm • 400 watts x 2 Chan. Max • Selectable Bass Boost • Preamp RCA Outputs

JL Audio G-Series 4-Channel Class A/B Car Amplifier • 80W x 4 Chan. @ 4 ohm • 125W x 4 Chan. @ 2 ohm • Bridged 250W x 2 Chan. @ 4 ohm • 400 watts x 2 Chan. Max • Selectable Bass Boost • Preamp RCA Outputs

Hifonics XX-JUPITER R/B

650W RMS 4-Channel Amplifier

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Hifonics XX-JUPITER R/B

650W RMS 4-Channel Amplifier

4-Channel A/B Amplifier • 75W RMS x 4 @ 4 Ohm • 110W RMS x 4 @ 2 Ohm • 20th Anniversary Heatsink Design • 1 Ohm Stable • Gold Plated RCA Connectors

4-Channel A/B Amplifier • 75W RMS x 4 @ 4 Ohm • 110W RMS x 4 @ 2 Ohm • 20th Anniversary Heatsink Design • 1 Ohm Stable • Gold Plated RCA Connectors

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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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