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  1. Home
  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.
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.
Zeus Series (11)
PowerZone Series (10)
GM Series (8)
SAE Series (8)
Power Pack Series (7)
Punch BR Series (7)
Reference Series (7)
HCP Series (6)
Mean Machine Series (6)
Punch Series (6)
V Series (6)
Anarchy Series (5)
Brutus Series (5)
CX Series (5)
Ground Pounder Series (5)
JAD Series (5)
JD Series (5)
SALT Series (5)
SFB Series (5)
V Power Series (5)
X Series (5)
AXL Series (4)
Brutus X 14 Series (4)
GM Digital Series (4)
Marine V Series (4)
Power Series (4)
RD Series (4)
SPL Show Series (4)
Venezia Series (4)
DPower Series (3)
Gothic Series (3)
Machete Series (3)
Mille Power Series (3)
N Series (3)
N-Series (3)
Prime Series (3)
S Series (3)
SPL (3)
Buran Series (2)
BX Series (2)
Consumer Line Series (2)
DS Series (2)
GS Series (2)
iON Series (2)
Kappa Series (2)
Mt. Olympus Series (2)
ONYX Series (2)
PDR Series (2)
Picasso Series (2)
Power One Series (2)
PXA Series (2)
R-Series (2)
Riot Series (2)
Status Series (2)
Street Edge Series (2)
WCC Series (2)
XQ Series (2)
ATX Series (1)
BAMF Series (1)
BB Series (1)
Black Ice Series (1)
Bomber Series (1)
Club Series (1)
COLOSSUS Series (1)
Discus Series (1)
DSP Series (1)
Edge Series (1)
Gen-X (1)
GTO Series (1)
HD Series (1)
HED Series (1)
HX Series (1)
Key Series (1)
KX Series (1)
MHD Series (1)
MOJO Pro Series (1)
MVi Series (1)
PDX Series (1)
Performance Series (1)
PH Series (1)
Phantom Series (1)
Picasso-Nano Series (1)
Prime R2 Series (1)
Primo Series (1)
Q Series (1)
Salt Water Series (1)
Slash v3 Series (1)
Stealth Bomber Series (1)
Stealth Series (1)
Stroker Pro Series (1)
SXE Series (1)
TS Series (1)
Tsunami Series (1)
VXi Series (1)
XD-v2 Series (1)
XDM Series (1)
ZTX Series (1)
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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Condition
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You are currently viewing discontinued products.

Soundstream P4.140 (Factory Refurbished)

140W 4-Channel Picasso Series Class A/B Amplifier

P4.140 big DISCONTINUED
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Soundstream P4.140 (Factory Refurbished)

140W 4-Channel Picasso Series Class A/B Amplifier

• RMS Power: 25W x 4 @ 4 ohm, 35W x 4 @ 2 ohm, 70W x 2 @ 4 ohm, Bridged
• Total Peak Power: 140W
• Dash Mount Remote Bass Level Control Included
• Dimensions: 8.25"W x 6.5"L x 2"H

• RMS Power: 25W x 4 @ 4 ohm, 35W x 4 @ 2 ohm, 70W x 2 @ 4 ohm, Bridged
• Total Peak Power: 140W
• Dash Mount Remote Bass Level Control Included
• Dimensions: 8.25"W x 6.5"L x 2"H

Crunch PD 2000.4 LIKE NEW DAMAGED PACKAGING

2000W Max Power Drive Series 2-Ohm Stable Bridgeable 4-Channel Amplifier

PD 2000.4 big DISCONTINUED
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Crunch PD 2000.4 LIKE NEW DAMAGED PACKAGING

2000W Max Power Drive Series 2-Ohm Stable Bridgeable 4-Channel Amplifier

Like new Damaged Package
• 250 Watts RMS x 4 @ 4 ohm
• 500 Watts RMS x 4 @ 2 ohm
• Bridged: 1000 Watts RMS x 2 @ 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 17.8"L x 3.8"H

Like new Damaged Package
• 250 Watts RMS x 4 @ 4 ohm
• 500 Watts RMS x 4 @ 2 ohm
• Bridged: 1000 Watts RMS x 2 @ 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 17.8"L x 3.8"H

Power Acoustik STAX 2300/4 (STAX2300/4) Factory Refurbished

2300W Max 4-Channel Class A/B STAX Series Amplifier

STAX2300/4 big DISCONTINUED
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Power Acoustik STAX 2300/4 (STAX2300/4) Factory Refurbished

2300W Max 4-Channel Class A/B STAX Series Amplifier

STAX 4-Channel Class A/B Car Amplifier • 200 Watts x 4 Chan. @ 4 Ohm • 250 Watts x 4 Chan. @ 2 Ohm • 2300 Watts Max • 3-Way System Protection Circuitry • MOSFET Power Supply • LED Power And Protect Indicators •

STAX 4-Channel Class A/B Car Amplifier • 200 Watts x 4 Chan. @ 4 Ohm • 250 Watts x 4 Chan. @ 2 Ohm • 2300 Watts Max • 3-Way System Protection Circuitry • MOSFET Power Supply • LED Power And Protect Indicators •

Power Acoustik STAX 1200/4 (STAX1200/4) Factory Refurbished

1200W Max, 4-Channel Class A/B STAX Series Amplifier

STAX1200/4 big DISCONTINUED
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Power Acoustik STAX 1200/4 (STAX1200/4) Factory Refurbished

1200W Max, 4-Channel Class A/B STAX Series Amplifier

STAX 4-Channel Class A/B Car Amplifier • 100 Watts x 4 Chan. @ 4 Ohm • 125 Watts x 4 Chan. @ 2 Ohm • 1200 Watts Max • 3-Way System Protection Circuitry • MOSFET Power Supply • LED Power And Protect Indicators •

STAX 4-Channel Class A/B Car Amplifier • 100 Watts x 4 Chan. @ 4 Ohm • 125 Watts x 4 Chan. @ 2 Ohm • 1200 Watts Max • 3-Way System Protection Circuitry • MOSFET Power Supply • LED Power And Protect Indicators •

Crunch PZ-4020.4-PRO

4000W Max Powerzone Series 2 ohm Stable 4-Channel Class-A/B Amplifier w/ Bass Knob Included

PZ-4020.4-PRO big DISCONTINUED
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Crunch PZ-4020.4-PRO

4000W Max Powerzone Series 2 ohm Stable 4-Channel Class-A/B Amplifier w/ Bass Knob Included

• 500 Watts Max x 4 @ 4 ohm
• 1000 Watts Max x 4 @ 2 ohm
• 1000 Watts Max x 2 @ 4 ohm
• Total Peak Power: 4000 Watts
• Preamp Outputs to Strap More Amps
&bull 0-9 Bass Boost
• Aluminum Heatsink

• 500 Watts Max x 4 @ 4 ohm
• 1000 Watts Max x 4 @ 2 ohm
• 1000 Watts Max x 2 @ 4 ohm
• Total Peak Power: 4000 Watts
• Preamp Outputs to Strap More Amps
&bull 0-9 Bass Boost
• Aluminum Heatsink

NVX VADM4-Open Box(Very Good, Used)

400W RMS Full Range Class D 4-Channel Car/Marine/Powersports Amplifier

VADM4v2 big DISCONTINUED
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NVX VADM4-Open Box(Very Good, Used)

400W RMS Full Range Class D 4-Channel Car/Marine/Powersports Amplifier

• 400 Watt True RMS Output!
• Marine Certified 4-Channel Micro Class D Amplifier
• 75W x 4-Chan. @ 4 ohm
• 100W x 4-Chan. @ 2 ohm
• 3-Way System Protection
• 4/2 Channel Operation
• 8 Gauge Power and Ground Inputs
• Extremely Small Footprint!

• 400 Watt True RMS Output!
• Marine Certified 4-Channel Micro Class D Amplifier
• 75W x 4-Chan. @ 4 ohm
• 100W x 4-Chan. @ 2 ohm
• 3-Way System Protection
• 4/2 Channel Operation
• 8 Gauge Power and Ground Inputs
• Extremely Small Footprint!

Kicker CXA300.4 (43CXA3004) Open Box

600 Watt Peak (300W RMS) CX Series 4-Channel Bridgeable Class D Car Amplifier

43CXA3004 big DISCONTINUED
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Kicker CXA300.4 (43CXA3004) Open Box

600 Watt Peak (300W RMS) CX Series 4-Channel Bridgeable Class D Car Amplifier

• 75 Watts RMS x 4 @ 2 ohm
• Total Peak Power: 600 Watts
• Preamp RCA outputs to daisy chain multiple amps
• Variable Low/High-Pass Crossover: 50 - 200Hz 12dB/octave
• Variable Bass Boost: 0 to +12 dB bass boost at 40 Hz
• Dimensions: 7-3/16"W x 12-7/16"L x 2-3/8"H

• 75 Watts RMS x 4 @ 2 ohm
• Total Peak Power: 600 Watts
• Preamp RCA outputs to daisy chain multiple amps
• Variable Low/High-Pass Crossover: 50 - 200Hz 12dB/octave
• Variable Bass Boost: 0 to +12 dB bass boost at 40 Hz
• Dimensions: 7-3/16"W x 12-7/16"L x 2-3/8"H

Alpine PDX-F6 Open Box, Accepatble Condition (Used)

600W PDX Series 4-Channel Power Density Digital Class D Car Amplifier(Open Box Complete Used Functional)

PDX-F6 big DISCONTINUED
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Alpine PDX-F6 Open Box, Accepatble Condition (Used)

600W PDX Series 4-Channel Power Density Digital Class D Car Amplifier(Open Box Complete Used Functional)

• Item Condition: Open Box
• RMS Power: 150W x 4-Chan. @ 4 ohm
• 600 Watts RMS
• Class D
• Variable High-Pass and Low-Pass Filter
• Blue LED Power/Status Indicator
• Compact Size

• Item Condition: Open Box
• RMS Power: 150W x 4-Chan. @ 4 ohm
• 600 Watts RMS
• Class D
• Variable High-Pass and Low-Pass Filter
• Blue LED Power/Status Indicator
• Compact Size

Sony XMGS4 (Open Box, Complete)

700W Max Hi-Resolution Audio Compatible 4-Channel Amplifier

XM-GS4 big DISCONTINUED
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Sony XMGS4 (Open Box, Complete)

700W Max Hi-Resolution Audio Compatible 4-Channel Amplifier

• 150 watts x 4 chan. @ 4ohm
• 175 watts x 4 chan. @ 2 Ohm
• CEA-2006 Compliant Amplifier
• Ultra-wide frequency range that extends up to 100 kHz
• Engineered for minimal noise and maximum efficiency
• High-quality electrolytic capacitors assist in powering bright, versatile sound

5

• 150 watts x 4 chan. @ 4ohm
• 175 watts x 4 chan. @ 2 Ohm
• CEA-2006 Compliant Amplifier
• Ultra-wide frequency range that extends up to 100 kHz
• Engineered for minimal noise and maximum efficiency
• High-quality electrolytic capacitors assist in powering bright, versatile sound

Cerwin-Vega B4 Open Box Complete

600W Bomber Series 4-Channel Class D Digital Amplifier

B4 big DISCONTINUED
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Cerwin-Vega B4 Open Box Complete

600W Bomber Series 4-Channel Class D Digital Amplifier

• Item Condition: Open Box Complete
• RMS Power: 80W x 4 @ 4 ohm, 150W x 4 @ 2 ohm
• Dual Zone , operate two separate devices to two separate stages (front vs rear)
• Ultra Compact High Density Aluminium Alloy Chassis
• Direct FET Power Mosfet Output Stage
• Dimensions: 4.02"W x 8.7"L x 1.4"H

• Item Condition: Open Box Complete
• RMS Power: 80W x 4 @ 4 ohm, 150W x 4 @ 2 ohm
• Dual Zone , operate two separate devices to two separate stages (front vs rear)
• Ultra Compact High Density Aluminium Alloy Chassis
• Direct FET Power Mosfet Output Stage
• Dimensions: 4.02"W x 8.7"L x 1.4"H

West Coast Customs WCC1600.4 Open Box Complete

1600W WCC Series Full Range Bridgeable 4-Channel Amplifier (Same as MB Quart OA800.4)

WCC1600.4 big DISCONTINUED
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West Coast Customs WCC1600.4 Open Box Complete

1600W WCC Series Full Range Bridgeable 4-Channel Amplifier (Same as MB Quart OA800.4)

• Open Box Complete
• 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

• Open Box Complete
• 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

Power Acoustik RZ4-2000D Open Box Complete (Very Good, Used)

2000W 4-Channel RAZOR Series Full Range Class D Car Amplifier

RZ4-2000D big DISCONTINUED
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Power Acoustik RZ4-2000D Open Box Complete (Very Good, Used)

2000W 4-Channel RAZOR Series Full Range Class D Car Amplifier

• Item Condition: Open Box
• 4 ohm: 160 watts x 4-Chan.
• 2 ohm: 250 watts x 4-Chan.
• Bridged, 4 ohm: 500 x 2 chan.
• Max power output: 2000 watts
• 80Hz HP Crossover @ 12dB
• 80Hz LP Crossover @ 12dB

• Item Condition: Open Box
• 4 ohm: 160 watts x 4-Chan.
• 2 ohm: 250 watts x 4-Chan.
• Bridged, 4 ohm: 500 x 2 chan.
• Max power output: 2000 watts
• 80Hz HP Crossover @ 12dB
• 80Hz LP Crossover @ 12dB

JBL STAGEA6004 (Open Box, Complete)

560W Max (240W RMS) Stage Series 4 ohm Stable 4-Channel Class-D Amplifier w/ Remote Level Control

STAGEA6004 big DISCONTINUED
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JBL STAGEA6004 (Open Box, Complete)

560W Max (240W RMS) Stage Series 4 ohm Stable 4-Channel Class-D Amplifier w/ Remote Level Control

• 60 Watts RMS x 4 @ 4 ohm
• 70 Watts RMS x 4 @ 2 ohm
•
• Total Peak Power: 560 Watts
• CEA-2006 Compliant
• 12dB Bass Boost
• Alloy Heat Sink
• Frequency Response: 20 - 20000 Hz

• 60 Watts RMS x 4 @ 4 ohm
• 70 Watts RMS x 4 @ 2 ohm
•
• Total Peak Power: 560 Watts
• CEA-2006 Compliant
• 12dB Bass Boost
• Alloy Heat Sink
• Frequency Response: 20 - 20000 Hz

Kenwood KAC-6407 - Open Box, Very Good Condition Used

550W Max (130W RMS) Class-AB 4-Channel 2-Ohm Stable Amplifier

KAC-6407 big DISCONTINUED
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Kenwood KAC-6407 - Open Box, Very Good Condition Used

550W Max (130W RMS) Class-AB 4-Channel 2-Ohm Stable Amplifier

• 40 Watts RMS x 4 @ 4 ohm
• 60 Watts RMS x 2 @ 2 ohm
• 130 Watts RMS x 2 @ 4 ohmS
• Total Max Power: 550 Watts
• CTA-2006 Compliant/
• Aluminum Heatsink
• 13-3/16"W x 8-1/16"L x 2-3/16"H

• 40 Watts RMS x 4 @ 4 ohm
• 60 Watts RMS x 2 @ 2 ohm
• 130 Watts RMS x 2 @ 4 ohmS
• Total Max Power: 550 Watts
• CTA-2006 Compliant/
• Aluminum Heatsink
• 13-3/16"W x 8-1/16"L x 2-3/16"H

NVX MVPA4 (Factory Refurbished)

Micro-V Series 400W RMS 4-Channel Bridgeable Micro Class D Compact Car Amplifier (MVPA.4)

No picture DISCONTINUED
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NVX MVPA4 (Factory Refurbished)

Micro-V Series 400W RMS 4-Channel Bridgeable Micro Class D Compact Car Amplifier (MVPA.4)

• The size of a postcard with 400 Watts True RMS Output!
• • MVP Series 4-Channel Micro Class D Amplifier
• 50W x 4-Chan. @ 4 ohm
• 100W x 4-Chan. @ 2 ohm
• 3-Way System Protection
• 4/3/2/1 Channel Operation
• 8 Gauge Power and Ground Inputs
• Extremely Small Footprint!

• The size of a postcard with 400 Watts True RMS Output!
• • MVP Series 4-Channel Micro Class D Amplifier
• 50W x 4-Chan. @ 4 ohm
• 100W x 4-Chan. @ 2 ohm
• 3-Way System Protection
• 4/3/2/1 Channel Operation
• 8 Gauge Power and Ground Inputs
• Extremely Small Footprint!

Cadence Q4000 Open Box Complete

1600W 4-Channel Q Series Full Range Class A/B Car Amplifier

Q4000 big DISCONTINUED
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Cadence Q4000 Open Box Complete

1600W 4-Channel Q Series Full Range Class A/B Car Amplifier

• Item Condition: Open Box Complete
• RMS: 125W x 4 @ 4 ohm, 190W x 4 @ 2 ohm, 380W x 2 @ 4 ohm Bridged
• Total Peak Power: 1600W
• High Speed MosFET Power Supply
• 16V Capable Power Supplies
• Full Range Class A/B
• BiPolar Professional Audio Grade Output Transistors
• 16.9" L x 7.9" W x 2.4 H

• Item Condition: Open Box Complete
• RMS: 125W x 4 @ 4 ohm, 190W x 4 @ 2 ohm, 380W x 2 @ 4 ohm Bridged
• Total Peak Power: 1600W
• High Speed MosFET Power Supply
• 16V Capable Power Supplies
• Full Range Class A/B
• BiPolar Professional Audio Grade Output Transistors
• 16.9" L x 7.9" W x 2.4 H

NVX JAD800.4 (OPEN BOX, LIKE NEW)

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

JAD800.4 big DISCONTINUED
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NVX JAD800.4 (OPEN BOX, LIKE NEW)

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

• 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

Cadence Z4000HC (Factory Refurbished)

200 Watts Max (100W RMS) 4 Channel Z Ultradrive Series Amplifier

LS-Z4000HC-RB big DISCONTINUED
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Cadence Z4000HC (Factory Refurbished)

200 Watts Max (100W RMS) 4 Channel Z Ultradrive Series Amplifier

• 25 Watts RMS x 4 @ 4 ohm • Total Peak Power: 200 Watts
• Total RMS power output: 100 watts
• Heavy duty aluminum alloy heat-sink for extreme heat dissipation
• 3-way protection circuitry (thermal, overload, and speaker short protection)

• 25 Watts RMS x 4 @ 4 ohm • Total Peak Power: 200 Watts
• Total RMS power output: 100 watts
• Heavy duty aluminum alloy heat-sink for extreme heat dissipation
• 3-way protection circuitry (thermal, overload, and speaker short protection)

Clarion APA450 Refurbished

(Factory Refurbished) 400W Max, 4-Channel Power Amplifier

APA450-RB big DISCONTINUED
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Clarion APA450 Refurbished

(Factory Refurbished) 400W Max, 4-Channel Power Amplifier

Power Series 4-Channel Class AB Car Amplifier • 50 Watts x 4 Chan. @ 4 Ohm • 100 Watts x 4 Chan. @ 2 Ohm • 400 Watts Max • Signal Sensing Speaker-Level Inputs • Fan Cooled • Heavy Duty Aluminum Alloy Heatsink

Power Series 4-Channel Class AB Car Amplifier • 50 Watts x 4 Chan. @ 4 Ohm • 100 Watts x 4 Chan. @ 2 Ohm • 400 Watts Max • Signal Sensing Speaker-Level Inputs • Fan Cooled • Heavy Duty Aluminum Alloy Heatsink

Autotek MMA1500.4 Open Box Complete

1500W 4-Channel Mean Machine Series Car Amplifier

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

1500W 4-Channel Mean Machine Series Car Amplifier

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

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

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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.

    All About Discontinued 4-Channel Amplifiers

    Car Audio 4-Channel Amplifier

    At the heart of the best-sounding audio system you've ever heard in a vehicle is a powerful amplifier that surely packs a punch. A 4-channel amplifier is the centerpiece that gives life to speakers, subwoofers, or even both for a surround sound experience that's always meant to be a memorable ride. When it comes to power, a 4-channel amplifier beats the amp inside a dash-mounted receiver any day.

    Showcasing multi-channels, this amplifier is originally designed to amp up a 4-speaker system, such as a couple of pairs of full-range speakers. Bridging 2 channels of this amplifier allows you to power a subwoofer, while the other channels remain connected to the speakers, turning your vehicle into one mighty boombox: wielding crystal highs, stunning lows, and carrying an ambiance that fully immerses you. A 4-channel amplifier is a priority upgrade for your system if you want to combat the loud revving noises of your vehicle's powerful engine or cancel out the audio distortion from your music. Amplifiers like these are guaranteed to provide you with true high fidelity, bass boost, and a new love for your audio system.

    Our massive catalog of premium 4-channel amplifiers with classifications including Class AB which features higher efficiency, less distortions, and is the most commonly used type of audio power amplifier design; and Class-D amplifiers which are known to be highly efficient with power and delivering sound signals. Sonic Electronix certainly contains the ideal amp for you - from Pioneer, JVC, NVX, Belva, Kicker, Rockford Fosgate, Cerwin-Vega, and more.

    Sonic Electronix Learning Center: Amplifier Classes

    If you're on the hunt for the best quality 4-channel amplifiers, you've come to the right place. Our extensive selection guarantees that you'll find only the finest products to elevate your car audio experience. Whether you're a music enthusiast or a casual listener, our range of high-performance 4-channel amplifiers will exceed your expectations.

    4-channel amplifiers are a versatile and essential component in upgrading your car audio system. As the name implies, a 4-channel amplifier has four output channels, which allows you to power your front and rear speakers separately. This configuration is perfect for car owners who seek a balanced and immersive audio experience, with crystal-clear sound for both the front and rear passengers.

    One of the primary advantages of a 4-channel amplifier is its ability to distribute power efficiently to all four speakers, ensuring that each speaker receives optimal power for enhanced sound clarity and precision. This results in a well-balanced audio experience, where every note and beat comes to life, providing an immersive and enjoyable driving journey.

    Additionally, 4-channel amplifiers often feature various configurations, including bridgeable options that allow you to combine two channels to power a more potent subwoofer or component speakers. This flexibility offers you the freedom to customize your car audio system according to your preferences, achieving the perfect balance between your front and rear speakers or adding a dedicated subwoofer for deep bass.

    At Sonic Electronix, we are committed to helping you find the best 4-channel amplifiers that cater to your specific needs. Our team of car audio experts is ready to provide exceptional service and assistance throughout your shopping experience. If you have any questions or need personalized advice on selecting the ideal amplifier for your car audio system, don't hesitate to reach out to us at 1-502-200-8010. Our friendly staff will be delighted to address your inquiries and ensure you find the perfect 4-channel amplifier to elevate your car audio experience.

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