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
Reset Done
Brands
You Recently Chose:
Lanzar (40)
MTX (42)
VIBE (13)
Hifonics (141)
Power Acoustik (103)
Boss (102)
Soundstream (98)
Alpine (97)
Crunch (97)
Kicker (77)
Rockford Fosgate (77)
MB Quart (72)
JL Audio (65)
Autotek (64)
JBL (53)
NVX (46)
Pioneer (44)
Precision Power (39)
Audiobahn (37)
Kenwood (37)
Orion (35)
Massive Audio (34)
Infinity (31)
Planet Audio (31)
Cerwin-Vega (30)
Sound Storm Labs (SSL) (29)
Hertz (28)
Memphis (28)
Sony (28)
Cadence (23)
Audiopipe (21)
Phoenix Gold (21)
RE Audio (19)
Sundown Audio (19)
Clarion (17)
Pyramid (16)
Pyle (15)
SPL (15)
DS18 (14)
Focal (14)
Deaf Bonce (13)
Kole Audio (13)
Diamond Audio (12)
JVC (12)
Dual (11)
Visonik (11)
Absolute (10)
American Bass (10)
Hitron (10)
Boston Acoustics (9)
Jensen (9)
Performance Teknique (9)
Polk Audio (9)
PowerBass (9)
Blaupunkt (8)
Clif Designs (8)
Eclipse (8)
Taramps (8)
Alphasonik (7)
Crossfire (6)
DLS (6)
FLI Audio (6)
Image Dynamics (6)
Lightning Audio (6)
MA Audio (6)
Renegade (6)
Bazooka (5)
Legacy (5)
ARC Audio (4)
Belva (4)
DHD (4)
EFX (4)
Panasonic (4)
Skarbage Audio (4)
TOTAL Mobile Audio (4)
U.S. acoustics (4)
American Pro (3)
Ample Audio (3)
AudioControl (3)
Directed (3)
Nitro (3)
West Coast Customs (3)
Audison (2)
Avatar (2)
Digital Audio (2)
Earthquake Sound (2)
RCA Mobile (2)
TIS Audio (2)
U.S. Amps (2)
Valor (2)
Volfenhag (2)
Wet Sounds (2)
Xtant (2)
Almani (1)
AudioFonics (1)
Beyma (1)
DC Audio (1)
DJ Marine Audio by Memphis (1)
Duval (1)
Fusion (1)
HD (1)
Metra (1)
Realm (1)
RetroSound (1)
Scosche (1)
Thump (1)
db Drive (1)

We are sorry, no available results!

Product Type
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 (34)
Brutus Series (25)
Mean Machine Series (23)
PowerZone Series (19)
Reference Series (15)
GM Series (13)
Prime Series (11)
Anarchy Series (10)
Phantom Series (10)
HCP 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)
Power Pack Series (8)
Punch BR Series (8)
Riot Series (8)
Z-Line Series (8)
AXL Series (7)
Brutus X 14 Series (7)
JAD Series (7)
S Series (7)
SAE Series (7)
Tarantula Series (7)
Consumer Line Series (6)
GM Digital Series (6)
iON Series (6)
Punch Series (6)
Reaper Series (6)
Salt Water Series (6)
Torque Series (6)
V Power Series (6)
V Series (6)
BAMF Series (5)
Chaos EXXtreme Series (5)
DS Series (5)
Edge Series (5)
Evolution Series (5)
GS Series (5)
JD Series (5)
Kappa Series (5)
Machete Series (5)
Power One Series (5)
Power Series (5)
SALT Series (5)
SFB Series (5)
Slash v3 Series (5)
Stealth Series (5)
Apocalypse Series (4)
Buran Series (4)
Crypt Series (4)
Discus Series (4)
DPower Series (4)
GTO Series (4)
Mille Power Series (4)
N Series (4)
Razor Series (4)
RD Series (4)
SPL Show Series (4)
Venezia Series (4)
Armor Series (3)
ATA Series (3)
Chaos EXXtreme II Series (3)
Club Series (3)
EXL-P Series (3)
HED Series (3)
HED3 Series (3)
KX Series (3)
MOJO Pro Series (3)
Mt. Olympus Series (3)
N-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)
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)
CompVR 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)
SEX v2 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.

Hifonics BG-1000.4

1000W BRUTUS Gamma Series 4-Channel Car Audio Amplifier

BG-1000.4 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Hifonics BG-1000.4

1000W BRUTUS Gamma Series 4-Channel Car Audio Amplifier

• 1000 Watt Amplifier
• 4-Channel Class D
• CEA-2006 Compliant
• Ultra-Fi™ MOSFET Technology

• 1000 Watt Amplifier
• 4-Channel Class D
• CEA-2006 Compliant
• Ultra-Fi™ MOSFET Technology

Planet Audio BB4.1200

1200W Max (450W RMS) 2-ohm Stable 4-Channel Class-D Amplifier w/ Remote Level Control

BB4.1200 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Planet Audio BB4.1200

1200W Max (450W RMS) 2-ohm Stable 4-Channel Class-D Amplifier w/ Remote Level Control

• 113 Watts RMS x 4 @ 4 ohm
• 225 Watts RMS x 4 @ 2 ohm
• Total Peak Power: 1200 Watts
• CEA-2006 Compliant
• 0 to 18dB Bass Boost
• Black Anodized Heat Sink

1

• 113 Watts RMS x 4 @ 4 ohm
• 225 Watts RMS x 4 @ 2 ohm
• Total Peak Power: 1200 Watts
• CEA-2006 Compliant
• 0 to 18dB Bass Boost
• Black Anodized Heat Sink

Sound Storm Labs (SSL) CG1604

Charge 1600W 4 Channel Full Range Class A/B Subwoofer Audio Amplifier

CG1604 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Sound Storm Labs (SSL) CG1604

Charge 1600W 4 Channel Full Range Class A/B Subwoofer Audio Amplifier

• 150 Watts RMS x 4 @ 4 ohm
• 300 Watts RMS x 4 @ 2 ohm
• Total Peak Power: 1600 Watts
• CEA-2006 Compliant
• MOSFET Power Supply
• Dimensions: 6.5"W x 13.7"L x 2.5"H

1

• 150 Watts RMS x 4 @ 4 ohm
• 300 Watts RMS x 4 @ 2 ohm
• Total Peak Power: 1600 Watts
• CEA-2006 Compliant
• MOSFET Power Supply
• Dimensions: 6.5"W x 13.7"L x 2.5"H

Boss PF1800

1800W 4 Channel Phantom Series Full Range Class AB Amplifier

PF1800 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Boss PF1800

1800W 4 Channel Phantom Series Full Range Class AB Amplifier

• RMS: 225W x 4 @ 4 ohm
• Total Peak Power: 1800W
• Gold-plated RCA low level and high level inputs
• 3-way protection circuitry (thermal, overload, and speaker short protection)
• Wired remote bass level control included
• 10.31" W x 13.50" L x 2.25" H

VIP Star Icon

VIP Product Get $16.00 in rewards to spend later

1

• RMS: 225W x 4 @ 4 ohm
• Total Peak Power: 1800W
• Gold-plated RCA low level and high level inputs
• 3-way protection circuitry (thermal, overload, and speaker short protection)
• Wired remote bass level control included
• 10.31" W x 13.50" L x 2.25" H

BOSS AUDIO Riot R1004 400W 4 Channel Car Power Amplifier Amp Mosfet (12 Pack)

BOSS AUDIO Riot R1004 400W 4 Channel Car Power Amplifier Amp Mosfet (12 Pack)

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

BOSS AUDIO Riot R1004 400W 4 Channel Car Power Amplifier Amp Mosfet (12 Pack)

BOSS AUDIO Riot R1004 400W 4 Channel Car Power Amplifier Amp Mosfet (12 Pack)

• RMS: 38W x 4 @ 4 ohm
• Peak: 100W x 4 @ 2 ohm
• Total Peak Power: 400W
• Frequency response: 12 - 22,000 Hz
• Dimensions: 9"W x 7-3/4"L x 2"H

15

• RMS: 38W x 4 @ 4 ohm
• Peak: 100W x 4 @ 2 ohm
• Total Peak Power: 400W
• Frequency response: 12 - 22,000 Hz
• Dimensions: 9"W x 7-3/4"L x 2"H

Massive Audio PX4S

960W RMS Class D Primo Series 4 Channel Car Amplifier

PX4S big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Massive Audio PX4S

960W RMS Class D Primo Series 4 Channel Car Amplifier

• 150 watts x 4 channel @ 4 ohm
• 240 watts x 4 channel @ 2 ohm
• Bridged: 480 watts x 2 channel @ 4 ohm
• Total RMS Power: 960 watts
• Class D 2 ohm Stable 4-Channel Amplifier

VIP Star Icon

VIP Product Get $46.00 in rewards to spend later

• 150 watts x 4 channel @ 4 ohm
• 240 watts x 4 channel @ 2 ohm
• Bridged: 480 watts x 2 channel @ 4 ohm
• Total RMS Power: 960 watts
• Class D 2 ohm Stable 4-Channel Amplifier

Power Acoustik MOFO4-3KD

3000W Peak (1000W RMS) MOFO Series Class D 4-Channel Car Amplifier

MOFO4-3KD big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Power Acoustik MOFO4-3KD

3000W Peak (1000W RMS) MOFO Series Class D 4-Channel Car Amplifier

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

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

Memphis PRX500.4V2

500W RMS Class D Power Reference Series 4 Channel Car Amplifier

PRX500.4V2 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Memphis PRX500.4V2

500W RMS Class D Power Reference Series 4 Channel Car Amplifier

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

VIP Star Icon

VIP Product Get $30.00 in rewards to spend later

1

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

Alpine SPS-610 6.5" + SPS-619 6x9" + Kicker CXA3004 Amplified Speaker Package

1000 Watt (6.5") (6 x 9") 2-Way Type-S Coaxial Speakers w/ Silk Tweeters + 600 Watt Kicker Amp

SPS-610_SPS-619_43CXA3004 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Alpine SPS-610 6.5" + SPS-619 6x9" + Kicker CXA3004 Amplified Speaker Package

1000 Watt (6.5") (6 x 9") 2-Way Type-S Coaxial Speakers w/ Silk Tweeters + 600 Watt Kicker Amp

• Peak Power: 480W
• RMS Power: 160W
• 1" Wide-Range Silk Soft Dome Tweeter
• Mounting Depth: 2-1/4"
• Tuned Poly-Mica Woofer Cone
• 4 Ohm Impedance
• Sensitivity: 88dB

• Peak Power: 480W
• RMS Power: 160W
• 1" Wide-Range Silk Soft Dome Tweeter
• Mounting Depth: 2-1/4"
• Tuned Poly-Mica Woofer Cone
• 4 Ohm Impedance
• Sensitivity: 88dB

Realm A600.4

600W 4-Channel Class A/B Car Amplifier

A600.4-2 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Realm A600.4

600W 4-Channel Class A/B Car Amplifier

• Multi-Color LED Protection
• High-Level Speaker Inputs
• Preamp RCA Outputs
• Variable Low/High-Pass Crossovers
• Discrete Plug Style Terminals
• CEA-2006 Compliant

• Multi-Color LED Protection
• High-Level Speaker Inputs
• Preamp RCA Outputs
• Variable Low/High-Pass Crossovers
• Discrete Plug Style Terminals
• CEA-2006 Compliant

Soundstream PN4.3500DX

3500W Peak (1200W RMS) Class D Picasso Nano Series 4-Channel Car Amplifier

PN4.3500DX big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Soundstream PN4.3500DX

3500W Peak (1200W RMS) Class D Picasso Nano Series 4-Channel Car Amplifier

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

VIP Star Icon

VIP Product Get $21.50 in rewards to spend later

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

Boss Elite BE1600.4

1600W Peak (750W RMS) Elite Series Class-AB 4-Channel Amplifier with Remote Bass Knob

Includes an Exclusive 5-Year Warranty!
BE1600.4 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Boss Elite BE1600.4

1600W Peak (750W RMS) Elite Series Class-AB 4-Channel Amplifier with Remote Bass Knob

• 150 Watts RMS x 4 @ 4 ohm
• 300 Watts RMS x 4 @ 2 ohm
• Total Peak Power: 1600 Watts
• Variable Bass Boost: 0 to +18 dB bass boost
• Heavy duty aluminum alloy split-dome convection heat-sink for extreme heat dissipation
• 3-way protection circuitry (thermal, overload, and speaker short protection)

Promo Savings Icon
Includes an Exclusive 5-Year Warranty!
VIP Star Icon

VIP Product Get $13.00 in rewards to spend later

1

• 150 Watts RMS x 4 @ 4 ohm
• 300 Watts RMS x 4 @ 2 ohm
• Total Peak Power: 1600 Watts
• Variable Bass Boost: 0 to +18 dB bass boost
• Heavy duty aluminum alloy split-dome convection heat-sink for extreme heat dissipation
• 3-way protection circuitry (thermal, overload, and speaker short protection)

American Bass XFL-DC4090

1000W Peak (600W RMS) Class D XFL Series 4 Channel Car Amplifier

XFL-DC4090 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

American Bass XFL-DC4090

1000W Peak (600W RMS) Class D XFL 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

VIP Star Icon

VIP Product Get $25.71 in rewards to spend later

• 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

Precision Power (PPI) A700.4D

700W RMS Class D ATOM Series 4-Channel Full Range Car Amplifier

A700.4D big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Precision Power (PPI) A700.4D

700W RMS Class D ATOM Series 4-Channel Full Range Car Amplifier

• 100 watts x 4 channel @ 4 ohm
• 175 watts x 4 channel @ 2 ohm
• Bridged: 350 watts x 2 channel @ 4 ohm
• Total RMS Power: 700 watts
• Class D 2 ohm Stable 4-Channel-Channel Amplifier

VIP Star Icon

VIP Product Get $18.00 in rewards to spend later

1

• 100 watts x 4 channel @ 4 ohm
• 175 watts x 4 channel @ 2 ohm
• Bridged: 350 watts x 2 channel @ 4 ohm
• Total RMS Power: 700 watts
• Class D 2 ohm Stable 4-Channel-Channel Amplifier

MTX JH3004

720W Peak (360W RMS) Jackhammer Series 4-Channel Class AB Amplifier

JH3004 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

MTX JH3004

720W Peak (360W RMS) Jackhammer Series 4-Channel Class AB Amplifier

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

VIP Star Icon

VIP Product Get $33.00 in rewards to spend later

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

Focal FDPSport

Motorcycle & All-Terrain 4-Channel Amplifier (4 x 250W @ 2 Ohm)

FDP Sport big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Focal FDPSport

Motorcycle & All-Terrain 4-Channel Amplifier (4 x 250W @ 2 Ohm)

• Motorcycle & All-Terrain 4-Channel Class D Amplifier
• 175W RMS x 4 at 4 ohm
• 250 W RMS x 4 at 2 ohm
• Bridged mode (4 Ohm): 500W RMS x 2
• Very small size for power output
• Highest level of crossover flexibility

VIP Star Icon

VIP Product Get $90.00 in rewards to spend later

• Motorcycle & All-Terrain 4-Channel Class D Amplifier
• 175W RMS x 4 at 4 ohm
• 250 W RMS x 4 at 2 ohm
• Bridged mode (4 Ohm): 500W RMS x 2
• Very small size for power output
• Highest level of crossover flexibility

DS18 EXL-P800X4

800W RMS EXL Power Series 4-Channel Class A/B Amplifier

EXL-P800X4 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

DS18 EXL-P800X4

800W RMS EXL Power Series 4-Channel Class A/B Amplifier

• 150 watts x 4 channel @ 4 ohm
• 200 watts x 4 channel @ 2 ohm
• Bridged: 400 watts x 2 channel @ 4 ohm
• Total RMS Power: 800 watts

VIP Star Icon

VIP Product Get $25.00 in rewards to spend later

2

• 150 watts x 4 channel @ 4 ohm
• 200 watts x 4 channel @ 2 ohm
• Bridged: 400 watts x 2 channel @ 4 ohm
• Total RMS Power: 800 watts

MTX XTHUNDER125.4

500W RMS XThunder Series 4-Channel Class AB Amplifier

XTHUNDER125.4 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

MTX XTHUNDER125.4

500W RMS XThunder Series 4-Channel Class AB Amplifier

• RMS Power: 90W x 4 @ 4 ohm, 125W x 4 @ 2 ohm
• RMS Power: 500W
• CEA-2006 Compliant/Preamp Outputs/LPF
• Dimensions: 8.93" W x 14.17" L x 2.03" H

VIP Star Icon

VIP Product Get $40.00 in rewards to spend later

• RMS Power: 90W x 4 @ 4 ohm, 125W x 4 @ 2 ohm
• RMS Power: 500W
• CEA-2006 Compliant/Preamp Outputs/LPF
• Dimensions: 8.93" W x 14.17" L x 2.03" H

Boss BPS4B

500W Peak Full Range 4-Channel Class A/B High Output Amplifier

BPS4B big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Boss BPS4B

500W Peak Full Range 4-Channel Class A/B High Output Amplifier

• 94 watts x 4 channel @ 4 ohm
• Total RMS Power: 376 watts
• Class A/B 4 ohm Stable 4-Channel Amplifier
• Wireless Audio streaming [A2DP] Bluetooth technology

1

• 94 watts x 4 channel @ 4 ohm
• Total RMS Power: 376 watts
• Class A/B 4 ohm Stable 4-Channel Amplifier
• Wireless Audio streaming [A2DP] Bluetooth technology

Pioneer GM-A4704

520W Peak (260W RMS) GM Series 4-Channel Class-AB Amplifier

GM-A4704 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Pioneer GM-A4704

520W Peak (260W RMS) GM Series 4-Channel Class-AB Amplifier

• 40 watts x 4 channel @ 4 ohm
• 65 watts x 4 channel @ 2 ohm
• Bridged: 130 watts x 2 channel @ 4 ohm
• Total RMS Power: 260 watts
• Class A/B 2 ohm Stable 4-Channel Amplifier

• 40 watts x 4 channel @ 4 ohm
• 65 watts x 4 channel @ 2 ohm
• Bridged: 130 watts x 2 channel @ 4 ohm
• Total RMS Power: 260 watts
• Class A/B 2 ohm Stable 4-Channel Amplifier

Prev 95 96 97 98 99 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

    2011 Ford Expedition

    2012 Mitsubishi Eclipse

    1998 Ford Windstar

    2008 Mercury Sable

    2021 Dodge Durango

    1998 Audi A4

    1982 Datsun 720

    2012 Suzuki Equator

    2023 Dodge Durango

    2011 BMW X3

    Vehicle
    Store     Delete

    1995 Honda VFR750F Interceptor

    2007 Harley Davidson FXSTB Night Train

    1986 Honda VF500F Interceptor

    2003 Harley Davidson FXSTD/I Softail Deuce

    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 2011 Expedition
    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