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.

Orion HCCA10004

1000W HCCA Competition Series 4-Channel Amplifier

HCCA10004 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Orion HCCA10004

1000W HCCA Competition Series 4-Channel Amplifier

• 250W x 4-Chan @ 2 Ohm
• 125W x 4-Chan @ 4 Ohm
• Intelli-Q Variable Bass Boost
• Preamp RCA Outputs
• 5-Way System Protection Circuitry

1

• 250W x 4-Chan @ 2 Ohm
• 125W x 4-Chan @ 4 Ohm
• Intelli-Q Variable Bass Boost
• Preamp RCA Outputs
• 5-Way System Protection Circuitry

Autotek AXL4050.4

4000W 4-Channel AXL Series Class AB Car Amplifier

AXL4050.4 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Autotek AXL4050.4

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

2

• 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

Rockford Fosgate P1000X4D

1000W RMS 4-Channel Class D Punch Series High Efficiency Amplifier

P1000X4D big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Rockford Fosgate P1000X4D

1000W RMS 4-Channel Class D Punch Series High Efficiency Amplifier

Punch Series Class D Full Range 4-Channel Car Amplifier • 150W x 4 Chan. @ 4 ohm • 250W x 4 Chan. @ 2 ohm • 500W x 2 Chan. @ 4 ohm Bridged • Punch EQ 2 Variable Bass Boost • High/Low Pass Crossovers • CEA-2006 Compliant

Punch Series Class D Full Range 4-Channel Car Amplifier • 150W x 4 Chan. @ 4 ohm • 250W x 4 Chan. @ 2 ohm • 500W x 2 Chan. @ 4 ohm Bridged • Punch EQ 2 Variable Bass Boost • High/Low Pass Crossovers • CEA-2006 Compliant

Bazooka MAA465

4-Channel Marine Amplifier

MAA465 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Bazooka MAA465

4-Channel Marine Amplifier

4-Channel Marine Amplifier • 64W x 4 chan. @ 4 Ohm • 90W x 4 chan. @ 2 Ohm • aluminum heat sink • illuminated logo • remote turn-on • short, thermal, and overload protection • adjustable input sensitivity

4-Channel Marine Amplifier • 64W x 4 chan. @ 4 Ohm • 90W x 4 chan. @ 2 Ohm • aluminum heat sink • illuminated logo • remote turn-on • short, thermal, and overload protection • adjustable input sensitivity

Power Acoustik D4-1400B

1400W Max 4 Channel Class A/B Demon Series Car Amplifier

D4-1400B big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Power Acoustik D4-1400B

1400W Max 4 Channel Class A/B Demon Series Car Amplifier

Demon Series 4-Channel Class AB Car Amplifier • 1400W Peak • Regulated PWM MOSFET Power Supply • Remote Subwoofer Level Control • LED Power and Protection Indicators • Bass Boost • 2-Way System Protection Circuitry

Demon Series 4-Channel Class AB Car Amplifier • 1400W Peak • Regulated PWM MOSFET Power Supply • Remote Subwoofer Level Control • LED Power and Protection Indicators • Bass Boost • 2-Way System Protection Circuitry

Orion ZO4000.4

4,000W Peak (2000W RMS) 4-Channel Amplifier

ZO4000.4 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Orion ZO4000.4

4,000W Peak (2000W RMS) 4-Channel Amplifier

• 175 Watts RMS x 4 @ 4 ohm
• 250 Watts RMS x 4 @ 2 ohm
• Total Peak Power: 4000 Watts
• Selectable Bass Boost: 0/+6/+12 dB
• Heavy duty aluminum alloy heat-sink for extreme heat dissipation
• 382mmW x 231.5mmL x 55.5mmH

• 175 Watts RMS x 4 @ 4 ohm
• 250 Watts RMS x 4 @ 2 ohm
• Total Peak Power: 4000 Watts
• Selectable Bass Boost: 0/+6/+12 dB
• Heavy duty aluminum alloy heat-sink for extreme heat dissipation
• 382mmW x 231.5mmL x 55.5mmH

JBL Marine MA6004 Open Box

Open Box 320W RMS, 4-Channel Marine Amplifier

MA6004 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

JBL Marine MA6004 Open Box

Open Box 320W RMS, 4-Channel Marine Amplifier

Marine Series 4-Channel Class AB Car Amplifier • 60W x 4 chan. @ 4 ohm • 80W x 4 chan. @ 2 ohm • 160W x 2 chan. @ 4 ohm • 320W RMS • MOSFET power supply • Preamp RCA outputs • Thermal, voltage, and short protection circuitry

Marine Series 4-Channel Class AB Car Amplifier • 60W x 4 chan. @ 4 ohm • 80W x 4 chan. @ 2 ohm • 160W x 2 chan. @ 4 ohm • 320W RMS • MOSFET power supply • Preamp RCA outputs • Thermal, voltage, and short protection circuitry

Rockford Fosgate Power T600 (Open Box, Complete)

Power Series Compact 4-Channel Amplifier

T600-4 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Rockford Fosgate Power T600 (Open Box, Complete)

Power Series Compact 4-Channel Amplifier

Power Series 4-Channel Class AB Car Amplifier • 100W x 4 chan. @ 4 ohm • 150W x 4 chan. @ 2 ohm • 300W x 2 chan. @ 4 ohm • 600W x 4 chan. Max • NOMAD protection circuitry: thermal, overload or short protection • MOSFET power supply

27

Power Series 4-Channel Class AB Car Amplifier • 100W x 4 chan. @ 4 ohm • 150W x 4 chan. @ 2 ohm • 300W x 2 chan. @ 4 ohm • 600W x 4 chan. Max • NOMAD protection circuitry: thermal, overload or short protection • MOSFET power supply

Rockford Fosgate Punch P850.4

Punch Series 4-Channel Amplifier

P850.4 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Rockford Fosgate Punch P850.4

Punch Series 4-Channel Amplifier

850 watt Punch Series 4-Channel Amplifier • 100 watts x 4 chan. @ 4 Ohm • 210 watts x 2 chan. @ 2 Ohm • preamp inputs and outputs • CEA-2006 compliant

850 watt Punch Series 4-Channel Amplifier • 100 watts x 4 chan. @ 4 Ohm • 210 watts x 2 chan. @ 2 Ohm • preamp inputs and outputs • CEA-2006 compliant

NVX VADM4 Amplifier + (4) Alpine 6x9" Speakers + Belva BBSW127

400W RMS NVX 4-Channel Car/Marine/Powersports Amplifier + (4) Alpine SXE6925S Coaxial Speakers + Belva Speaker Wire

vadm4_sxe6925s_bbsw127 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

NVX VADM4 Amplifier + (4) Alpine 6x9" Speakers + Belva BBSW127

400W RMS NVX 4-Channel Car/Marine/Powersports Amplifier + (4) Alpine SXE6925S Coaxial Speakers + Belva Speaker Wire

• 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!

90

• 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!

NVX MVPA4 (Open Box)

Micro-V Series 800 Watt (400W RMS) 4-Channel Bridgeable Micro Class D Compact Car Amplifier (MVPA.4)

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

NVX MVPA4 (Open Box)

Micro-V Series 800 Watt (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!

American Bass HD1504

600W 4-Channel Class A/B HD Series Car Amplifier

HD1504 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

American Bass HD1504

600W 4-Channel Class A/B HD Series Car Amplifier

• 600 Watts Max
• 60 Amp External Fuse Required (Not Included)
• Variable Low Pass Filter
• Freq. Response: 15Hz-27,000Hz
• 4-Way Protection

1

• 600 Watts Max
• 60 Amp External Fuse Required (Not Included)
• Variable Low Pass Filter
• Freq. Response: 15Hz-27,000Hz
• 4-Way Protection

Audiobahn A4004T R/B

800W Max, 4-Channel Intake Series Amplifier (Factory Refurbished)

A4004T big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Audiobahn A4004T R/B

800W Max, 4-Channel Intake Series Amplifier (Factory Refurbished)

800W Max, Intake 4-Channel Amplifier • Optional bass remote and digital volt-meter display available and sold separately • Class A/B • 400W RMS @ 2 ohm • 200W RMS @ 4 ohm • Preamp outputs • Cobalt Blue Illumination • Intake cooling fan • 4-way protection circuitry

800W Max, Intake 4-Channel Amplifier • Optional bass remote and digital volt-meter display available and sold separately • Class A/B • 400W RMS @ 2 ohm • 200W RMS @ 4 ohm • Preamp outputs • Cobalt Blue Illumination • Intake cooling fan • 4-way protection circuitry

Pioneer GM-A6604-OPEN BOX

360W RMS 4-Channel GM Series Bridgeable Car Amplifier

GM-A6604-2 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Pioneer GM-A6604-OPEN BOX

360W RMS 4-Channel GM Series Bridgeable Car Amplifier

• RMS: 60W x 4 @ 4 ohm, 90W x 4 @ 2 ohm, 180W x 2 @ 4 ohm
• Total Peak Power: 760W
• CEA-2006 Compliant
• Dimensions: 13-3/4"W x 8-1/2"L x 2-1/2"H

• RMS: 60W x 4 @ 4 ohm, 90W x 4 @ 2 ohm, 180W x 2 @ 4 ohm
• Total Peak Power: 760W
• CEA-2006 Compliant
• Dimensions: 13-3/4"W x 8-1/2"L x 2-1/2"H

Hifonics KRYPTON A3500 R/B

280W RMS Andromeda Series 4-Channel Amplifier

KRYPTONA3500-RB big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Hifonics KRYPTON A3500 R/B

280W RMS Andromeda Series 4-Channel Amplifier

Mercury Series 4-Channel Car Amplifier • 35 watts x 4 chan @ 4 ohm • 70 watts x 4 chan @ 2 ohm • MOSFET Power Supply • Dash Mount Bass Remote Included • LED Power Indicators • Bass Boost/EQ

Mercury Series 4-Channel Car Amplifier • 35 watts x 4 chan @ 4 ohm • 70 watts x 4 chan @ 2 ohm • MOSFET Power Supply • Dash Mount Bass Remote Included • LED Power Indicators • Bass Boost/EQ

Boss NX3000.4

3000W Max, Onyx Series 4-Channel Power Amplifier

NX3000.4 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Boss NX3000.4

3000W Max, Onyx Series 4-Channel Power Amplifier

Onyx Series 4-Channel Car Amplifier • 300W x 4 chan @ 4 Ohm • 700W x 4 chan @ 2 Ohm • MOSFET PWM Power Supply • Trimode Operation • Remote Subwoofer Level Control Included • LED Power/Protection Indicators

4

Onyx Series 4-Channel Car Amplifier • 300W x 4 chan @ 4 Ohm • 700W x 4 chan @ 2 Ohm • MOSFET PWM Power Supply • Trimode Operation • Remote Subwoofer Level Control Included • LED Power/Protection Indicators

Autotek MM100.4

500W RMS Mean Machine Series 4-Channel Amplifier

MM100.4 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Autotek MM100.4

500W RMS Mean Machine Series 4-Channel Amplifier

Mean Machine Series 4-Channel Car Amplifier • 100 Watts x 4 Chan @ 4 Ohm • 150 Watts x 4 Chan @ 2 Ohm • MOSFET Power Supply • LED Power Indicators • TCID (Twin Coil Isolation Design) • Aluminum Alloy Heatsink

Mean Machine Series 4-Channel Car Amplifier • 100 Watts x 4 Chan @ 4 Ohm • 150 Watts x 4 Chan @ 2 Ohm • MOSFET Power Supply • LED Power Indicators • TCID (Twin Coil Isolation Design) • Aluminum Alloy Heatsink

Kenwood KAC-6402

4-Channel Amplifier

KAC-6402 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Kenwood KAC-6402

4-Channel Amplifier

4-Channel Power Amplifier • 40W RMS x 4 @ 4 • 100W RMS x 2 @ 4 Bridged • Cast Aluminum Heat Sink • Variable Crossovers High & Low Level Inputs • Tri-Mode Capable • Red Power Indicator Jewel

4-Channel Power Amplifier • 40W RMS x 4 @ 4 • 100W RMS x 2 @ 4 Bridged • Cast Aluminum Heat Sink • Variable Crossovers High & Low Level Inputs • Tri-Mode Capable • Red Power Indicator Jewel

Bazooka MA475D

340W 4-Channel Class D Compact Marine Amplifier

MA475D big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Bazooka MA475D

340W 4-Channel Class D Compact Marine Amplifier

• 80W x 4-Chan. @ 4 ohm
• 100W x 4-Chan. @ 2 ohm
• 170W x 2 Chan. @ 4 ohm
• 3-Way System Protection
• 4/3/2/1 Channel Operation
• 8 Gauge Power and Ground Inputs
• Remote Bass Knob Included!

1

• 80W x 4-Chan. @ 4 ohm
• 100W x 4-Chan. @ 2 ohm
• 170W x 2 Chan. @ 4 ohm
• 3-Way System Protection
• 4/3/2/1 Channel Operation
• 8 Gauge Power and Ground Inputs
• Remote Bass Knob Included!

Sony XM-ZR604 Open Box

(Open Box)600W Max, 4-Channel Xplod Series Car Amplifier

XM-ZR604 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Sony XM-ZR604 Open Box

(Open Box)600W Max, 4-Channel Xplod Series Car Amplifier

Sony Xplod Series 4-Channel Car Amplifier • Class AB • 60W x 4 Chan. @ 4 ohm • 65W x 4 Chan. @ 2 ohm • 4/3 Channel Operation • Speaker-Level Inputs • Gold-Plated Terminals • High-Pass Filter • Low-Pass Filter

Sony Xplod Series 4-Channel Car Amplifier • Class AB • 60W x 4 Chan. @ 4 ohm • 65W x 4 Chan. @ 2 ohm • 4/3 Channel Operation • Speaker-Level Inputs • Gold-Plated Terminals • High-Pass Filter • Low-Pass Filter

Prev 48 49 50 51 52 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

    1995 Ford Aspire

    1980 Lincoln Continental

    1976 Ford Custom 500

    1983 Cadillac Eldorado

    1995 Suzuki Swift

    2020 Chrysler 300

    1985 Toyota Van

    1983 Ford Granada

    1983 Chevrolet Impala

    2006 Buick Rainier

    Vehicle
    Store     Delete

    2013 Harley Davidson FLD Switchback

    2008 Harley Davidson FXSTC Softail Custom

    2000 Harley Davidson FLHTC Electra Glide Classic

    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 1995 Aspire
    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.

    Additional information:

    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