Garage
Shop
Account Icon
Account
Box Icon
Track
order
Telephone Icon
Call
Help Icon
Help
Door with Arrow Icon
Sign In
  1. Home
  2. Discontinued Car Audio & Electronics
  3. Discontinued Car Amplifiers
  4. Discontinued 4-Channel Amplifiers

Discontinued 4-Channel Amplifiers

Filters
Amplifiers ✕
Clear Filters
Reset Done
Product Type
Amplifiers,
Price Range
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 (30)
Brutus Series (24)
Mean Machine Series (23)
PowerZone Series (19)
Reference Series (14)
GM Series (13)
Prime Series (11)
Anarchy Series (10)
Phantom Series (10)
HCP Series (9)
Power Pack Series (9)
X Series (9)
Black Ice Series (8)
CX Series (8)
Gothic Series (8)
Ground Pounder Series (8)
Marine V Series (8)
ONYX Series (8)
Picasso Series (8)
Picasso-Nano Series (8)
Punch BR Series (8)
Z-Line Series (8)
AXL Series (7)
Brutus X 14 Series (7)
JAD Series (7)
Riot Series (7)
SAE Series (7)
Tarantula Series (7)
Consumer Line Series (6)
DS Series (6)
GM Digital Series (6)
iON Series (6)
Punch Series (6)
Reaper Series (6)
S Series (6)
Salt Water Series (6)
Torque Series (6)
V Power Series (6)
BAMF Series (5)
Chaos EXXtreme Series (5)
Edge Series (5)
Evolution Series (5)
JD Series (5)
Kappa Series (5)
Machete Series (5)
Power One Series (5)
Power Series (5)
SALT Series (5)
SFB Series (5)
Stealth Series (5)
Apocalypse Series (4)
Buran Series (4)
Crypt Series (4)
Discus Series (4)
DPower Series (4)
GS Series (4)
Mille Power Series (4)
N Series (4)
Razor Series (4)
RD Series (4)
Slash v3 Series (4)
SPL Show Series (4)
V Series (4)
Venezia Series (4)
Armor Series (3)
ATA Series (3)
Chaos EXXtreme II Series (3)
Club Series (3)
EXL-P Series (3)
GTO Series (3)
HED Series (3)
HED3 Series (3)
KX Series (3)
MOJO Pro Series (3)
Mt. Olympus Series (3)
PDR Series (3)
Performance Series (3)
Power Class Series (3)
Primo Series (3)
Q Series (3)
SPL (3)
Street Edge Series (3)
WCC Series (3)
XED Series (3)
XQ Series (3)
ZRS Series (3)
APMI Series (2)
Atom Series (2)
BB Series (2)
Bomber Series (2)
BX Series (2)
Chaos Epic Series (2)
COLOSSUS Series (2)
Compact Series (2)
D Series (2)
DRVN Series (2)
HD Series (2)
HX Series (2)
JX Series (2)
Low Profile Series (2)
LP Series (2)
MHD Series (2)
MOFO Series (2)
Murdered Out Series (2)
N-Series (2)
Nano Edge Series (2)
Overdrive Series (2)
PDX Series (2)
PH Series (2)
PowerZone 2 Series (2)
Psyclone Series (2)
Pulse Series (2)
PXA Series (2)
R-Series (2)
Reserve Series (2)
Sedona Series (2)
SixFive Series (2)
SK Series (2)
SQ Series (2)
Status Series (2)
Stroker Pro Series (2)
SXE Series (2)
TS Series (2)
Tsunami Series (2)
United Series (2)
Vertigo Series (2)
VFL Series (2)
X-Line Series (2)
XD Series (2)
XD-v2 Series (2)
Xenith Series (2)
ZTX Series (2)
A3 Series (1)
ACM Series (1)
Alpha Series (1)
APK Series (1)
APSM Series (1)
Arachnid Series (1)
ATX Series (1)
AX2 Series (1)
BBX Series (1)
Big Bang Series (1)
BP Amplifier Series (1)
BPX Series (1)
CANDY-X Series (1)
Chaos Series (1)
Competition Series (1)
CTX Series (1)
Dealer Line Series (1)
DSP Series (1)
DX Series (1)
Elite Series (1)
EXL Series (1)
Force Series (1)
Formula Series (1)
Gen-X (1)
Hercules LTD Series (1)
JA Series (1)
JackHammer Series (1)
KAC Series (1)
Pioneer ME Series (1)
MINI BANG Series (1)
Mini Max Series (1)
Momentum CSA Series (1)
MSA Series (1)
MVi Series (1)
MXA Series (1)
Nano BiT Series (1)
Phanatik Series (1)
Power Reference (1)
Power X Series (1)
Prime R2 Series (1)
Primus Series (1)
PRX Series (1)
R Series (1)
Reference MYKRO Series (1)
Saber Series (1)
Sport Series (1)
Stadium Series (1)
Stage Series (1)
Stealth Bomber Series (1)
Stealth Shot Series (1)
Street Machine Series (1)
Street Reference Pro (1)
Stroker RPM Series (1)
Tarantula-NANO Series (1)
Terminator Series (1)
Thunder Series (1)
Trax Micro Series (1)
USX Series (1)
VEGA Series (1)
VFL Hybrid Series (1)
VXi Series (1)
X Power Series (1)
XDM Series (1)
XFL Series (1)
XThunder Series (1)
ZXI 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.
Deals
Promotions we have offer More Ways to Shop for items that are on clearance, last chance, special offer and sales, Made in America, and more!
Condition

Shop the Category

filter-icon Filters & Sort
You are currently viewing discontinued products.

Kicker KXA400.4 (44KXA4004) Open Box (Complete)

400W RMS KXA Class-D 4-Channel 2-Ohm Stable Amplifier with Remote Level Control

44KXA4004 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Kicker KXA400.4 (44KXA4004) Open Box (Complete)

400W RMS KXA Class-D 4-Channel 2-Ohm Stable Amplifier with Remote Level Control

• 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

• 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

Kicker CXA360.4 (46CXA3604T) (Like New (Open Box))

360W RMS Class AB CX-Series 4 Channel Car Amplifier

CXA360.4 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Kicker CXA360.4 (46CXA3604T) (Like New (Open Box))

360W RMS Class AB CX-Series 4 Channel Car Amplifier

• 65 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 A/B 2 ohm Stable 4-Channel Amplifier

1

• 65 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 A/B 2 ohm Stable 4-Channel Amplifier

Planet Audio AC1600.4

1600W Anarchy Series 4-Channel Class AB MOSFET Power Amplifier with Remote Level Control

AC1600.4 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Planet Audio AC1600.4

1600W Anarchy Series 4-Channel Class AB MOSFET Power Amplifier with Remote Level Control

• RMS: 300W x 4 @ 2 ohm
• 1600W Max.
• Switchable Phase Shift
• Input Sensitivity Selector
• Remote Subwoofer Control
• Heavy-Duty Screw Terminals
• Chrome-Plated Connections
• Illuminated Logo

22

• RMS: 300W x 4 @ 2 ohm
• 1600W Max.
• Switchable Phase Shift
• Input Sensitivity Selector
• Remote Subwoofer Control
• Heavy-Duty Screw Terminals
• Chrome-Plated Connections
• Illuminated Logo

Phoenix Gold Xenon X200.4 R/B

FACTORY REFURBISHED

X200.4 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Phoenix Gold Xenon X200.4 R/B

FACTORY REFURBISHED

800 watt amplifier • 600W x 1 (1-4 Ohm) • Xe.load, Xe.tune, Xe.flow • Built in High/Low Pass Crossovers • Bass Boost: 0-18dB • Variable input sensitivity

800 watt amplifier • 600W x 1 (1-4 Ohm) • Xe.load, Xe.tune, Xe.flow • Built in High/Low Pass Crossovers • Bass Boost: 0-18dB • Variable input sensitivity

Rockford Fosgate Power T4004 (Silver/ Red Box)

400 watts, 4-Channel Power Series Amplifier

T4004 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Rockford Fosgate Power T4004 (Silver/ Red Box)

400 watts, 4-Channel Power Series Amplifier

400 watt Power Series 4-Channel Amplifier • 25 watts x 4 chan. @ 4 Ohm • 50 watts x 4 chan. @ 2 Ohm • 100 watts x 4 chan. @ 1 Ohm • preamp inputs and outputs • CEA-2006 compliant

1

400 watt Power Series 4-Channel Amplifier • 25 watts x 4 chan. @ 4 Ohm • 50 watts x 4 chan. @ 2 Ohm • 100 watts x 4 chan. @ 1 Ohm • preamp inputs and outputs • CEA-2006 compliant

Kicker CXA360.4 (46CXA3604T) (Open Box, Great)

360W RMS Class AB CX-Series 4 Channel Car Amplifier

CXA360.4 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Kicker CXA360.4 (46CXA3604T) (Open Box, Great)

360W RMS Class AB CX-Series 4 Channel Car Amplifier

• 65 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 A/B 2 ohm Stable 4-Channel Amplifier

• 65 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 A/B 2 ohm Stable 4-Channel Amplifier

Cerwin-Vega HED31200.4

1200W 4-Channel HED3 Series Class AB Car Power Amplifier

HED31200.4 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Cerwin-Vega HED31200.4

1200W 4-Channel HED3 Series Class AB Car Power Amplifier

• 80W 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
• Illuminated Cerwin-Vega Badge

• 80W 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
• Illuminated Cerwin-Vega Badge

Sound Storm Evolution 400 W 4-Channel Full Range Class A/B Amplifier (4 Pack)

Sound Storm Evolution 400 W 4-Channel Full Range Class A/B Amplifier (4 Pack)

No picture DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Sound Storm Evolution 400 W 4-Channel Full Range Class A/B Amplifier (4 Pack)

Sound Storm Evolution 400 W 4-Channel Full Range Class A/B Amplifier (4 Pack)

• 50W RMS x 4-Channels
• MOSFET Power Supply
• High/Low Level Inputs
• Fixed High/Low Pass Filters
• 3-Way System Protection Circuitry

9

• 50W RMS x 4-Channels
• MOSFET Power Supply
• High/Low Level Inputs
• Fixed High/Low Pass Filters
• 3-Way System Protection Circuitry

Phoenix Gold RX2 400.4 (RX24004)

400W RMS Class A/B 4-Channel Amplifier

RX2400.4 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Phoenix Gold RX2 400.4 (RX24004)

400W RMS Class A/B 4-Channel Amplifier

• 400 Watt 4 Channel Class A/B Amplifier
• Small Footprint Chassis Design
• Robust Unregulated Power Supplies
• Rotatable Badging for installation flexibility
• High level Inputs for Easy OEM Integration
• Audio Precision® Quality Control Verification
• Class A/B Topology

• 400 Watt 4 Channel Class A/B Amplifier
• Small Footprint Chassis Design
• Robust Unregulated Power Supplies
• Rotatable Badging for installation flexibility
• High level Inputs for Easy OEM Integration
• Audio Precision® Quality Control Verification
• Class A/B Topology

Deaf Bonce AAP-400.4D

1666W RMS Atom Plus Series Full Range Class-D 4-Channel Amplifier

AAP-400.4D big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Deaf Bonce AAP-400.4D

1666W RMS Atom Plus Series Full Range Class-D 4-Channel Amplifier

• 140 watts x 4 channel @ 4 ohm
• 265 watts x 4 channel @ 2 ohm
• 430 watts x 4 channel @ 1 ohm
• Bridged: 516 watts x 2 channel @ 4 ohm
• Bridged: 833 watts x 2 channel @ 2 ohm
• Total RMS Power:
• Class D 1 Ohm Stable 4-Channel-Channel Amplifier

1

• 140 watts x 4 channel @ 4 ohm
• 265 watts x 4 channel @ 2 ohm
• 430 watts x 4 channel @ 1 ohm
• Bridged: 516 watts x 2 channel @ 4 ohm
• Bridged: 833 watts x 2 channel @ 2 ohm
• Total RMS Power:
• Class D 1 Ohm Stable 4-Channel-Channel Amplifier

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

(Open Box) Power Series Compact 4-Channel Amplifier

T400-4 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

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

ZX650.4 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

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

Pioneer GM-D8704

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

GM-D8704 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

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

7

• 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

SP 4.900 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

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)

MM4020.4 2 Pack big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

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

1

• 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

A6450 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

** 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

B54 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

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

XM-S400D big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

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

2

• 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

ZX700.5 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

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)

No picture DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

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

14

• 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

Prev 74 75 76 77 78 Next

Items per page: 20 40 60

    Clear all

    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.
    why-shoping-with-sonic

    We love people and we're ready to help you! See what separates us from our competition.

    Take advantage of our VIP rewards like 10% back on your purchases, free 2-day shipping, extended warranties, and free returns! Gain access to all of these rewards without any membership fees.
    Get great discounted (and possibly FREE) installation accessories with most car stereo purchases. This includes dash kits, wiring harnesses and antenna adapters that you will need to properly install your new car stereo.
    We are an Authorized Dealer for all the brands we sell, including the most premium brands in car and marine audio such as Hertz, JL Audio, NVX, Rockford Fosgate, Kicker, Alpine, Kenwood and many more.
    Shop Deals and get up to 30% off premium brands! Shop Now! We are always looking out for the best products and deals to offer our customers. Don’t pay too much by shopping elsewhere!
    We have information on brands, gear, and more for you to explore! Check out our YouTube Channel for helpful how-to videos, product reviews, and Q&As. For a more detailed look, also visit our Learning Center!
    Our trained experts are here to assist you! They are just a phone call or click away to help you get the right gear for you and your vehicle!
    Why Shop With Us?
    Save up to 10 different vehicles in your garage
    Vehicle
    Store     Delete

    1978 Oldsmobile Starfire

    2001 Oldsmobile Intrigue

    1976 Jaguar XJS

    2000 Cadillac Eldorado

    2022 Subaru Legacy

    1987 GMC Safari

    1994 Jeep Cherokee

    1997 Dodge Viper

    2000 Chevrolet Camaro

    Vehicle
    Store     Delete

    2015 Can-Am Commander Max 1000 XT

    Add vehicle Clear all vehicles
    Where to find vehicle info
    Are you sure you want to clear your garage?
    This action cannot be undone. Confirm

    Cancel

    This category was not designed for products.
    If you continue, you will be redirected to a category customized for your vehicle. Continue

    Cancel

    Shop your 1978 Starfire
    Why Use a Vehicle Fit Guide?
    Change vehicle | Shop without vehicle
    Whoa! Slow down. Add your details below!
    additional information required
    Add vehicle details to confirm fitment
    Ignore fitment details
    Find stereos and more that work -- fast.
    Remove

    Can't find your vehicle? Click here and we'll help.

    Where to find vehicle info

    Go to Fitment

    Didn't find your car?

    Submit your details and we'll help!
    Please enter the letters as they are shown in the image above. Letters are not case-sensitive.
    Identify your vehicle and submodel details
    • Owner's manual
    • Vehicle's insurance card
    • Vehicle registration
    • Vehicle produced after 2005: Inside driver's side door
    • Vehicle produced before 2005: Rear passenger doorjamb, glove box, center console, or engine compartment
    Car Info Side Door Icon
    Vehicle Registration Icon
    Vehicle Insurance Icon
    Back

    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.

    Back
    Track your order
    Call our experts
    Support Center
    Return & Exchanges
    Follow on Instagram Instagram logo
    Subscribe on YouTube YouTube logo