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:
Clarion (17)
Wet Sounds (2)
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)
MTX (42)
Lanzar (40)
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)
Pyramid (16)
Pyle (15)
SPL (15)
DS18 (14)
Focal (14)
Deaf Bonce (13)
Kole Audio (13)
VIBE (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)
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.

Focal FDP4.600 + Free $150 Gift Card

Class-D 4-Channel Amplifier (150 W RMS x 4 @ 2 Ohms)

FDP4.600, 150EGIFT big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Focal FDP4.600 + Free $150 Gift Card

Class-D 4-Channel Amplifier (150 W RMS x 4 @ 2 Ohms)

• 4-Channel Class D Amplifier
• 150 x 4 W RMS @ 4 Ohm
• 200 x 4 W RMS @ 2 Ohm
• Very small size for the amount of power
• Can be used in 2, 3, or 4 channel modes

2

• 4-Channel Class D Amplifier
• 150 x 4 W RMS @ 4 Ohm
• 200 x 4 W RMS @ 2 Ohm
• Very small size for the amount of power
• Can be used in 2, 3, or 4 channel modes

Massive Audio BP800.4 V2

800W Peak (480W RMS) BP Series Class A/B 4 Channel Amplifier

BP800.4 V2 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Massive Audio BP800.4 V2

800W Peak (480W RMS) BP Series Class A/B 4 Channel Amplifier

• 60 watts x 4 channel @ 4 ohm
• 120 watts x 4 channel @ 2 ohm
• Bridged: 240 watts x 2 channel @ 4 ohm
• Total RMS Power: 480 watts
• CEA-2006 Compliant
• Class A/B 2 ohm Stable 4-Channel-Channel Amplifier

• 60 watts x 4 channel @ 4 ohm
• 120 watts x 4 channel @ 2 ohm
• Bridged: 240 watts x 2 channel @ 4 ohm
• Total RMS Power: 480 watts
• CEA-2006 Compliant
• Class A/B 2 ohm Stable 4-Channel-Channel Amplifier

JBL STAGEA6004

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

STAGEA6004 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

JBL STAGEA6004

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

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

VIP Star Icon

VIP Product Get $21.00 in rewards to spend later

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

Deaf Bonce MLA-4120

600W RMS Class AB Machete Series 4 Channel Car Amplifier

MLA-4120 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Deaf Bonce MLA-4120

600W RMS Class AB Machete Series 4 Channel Car Amplifier

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

VIP Star Icon

VIP Product Get $15.99 in rewards to spend later

1

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

Pioneer GM-ME400X4

1200W Peak (600W RMS) ME-Series Class-D 4-Channel Marine Amplifier

GM-ME400X4 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Pioneer GM-ME400X4

1200W Peak (600W RMS) ME-Series Class-D 4-Channel Marine Amplifier

• 75 watts x 4 channel @ 4 ohm
• 100 watts x 4 channel @ 2 ohm
• Bridged: 200 watts x 2 channel @ 4 ohm
• Total RMS Power: 600 watts
• Class D 1 ohm Stable 4-Channel Amplifier

• 75 watts x 4 channel @ 4 ohm
• 100 watts x 4 channel @ 2 ohm
• Bridged: 200 watts x 2 channel @ 4 ohm
• Total RMS Power: 600 watts
• Class D 1 ohm Stable 4-Channel Amplifier

Planet Audio AC1200.4

1200W Peak (900W RMS) Anarchy Series Class-AB 4-Channel Amplifier

AC1200.4 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Planet Audio AC1200.4

1200W Peak (900W RMS) Anarchy Series Class-AB 4-Channel Amplifier

• 113 watts x 4 channel @ 4 ohm
• 225 watts x 4 channel @ 2 ohm
• Bridged: 450 watts x 2 channel @ 4 ohm
• Total RMS Power: 900 watts
• Class A/B 2 ohm Stable 4-Channel Amplifier

3

• 113 watts x 4 channel @ 4 ohm
• 225 watts x 4 channel @ 2 ohm
• Bridged: 450 watts x 2 channel @ 4 ohm
• Total RMS Power: 900 watts
• Class A/B 2 ohm Stable 4-Channel Amplifier

Hertz DPower 4

600W Peak (300W RMS) Class D DPower Series 4-Channel Car Amplifier

DPower 4 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Hertz DPower 4

600W Peak (300W RMS) Class D DPower Series 4-Channel Car Amplifier

• 50 watts x 4 channel @ 4 ohm
• 65 watts x 4 channel @ 2 ohm
• Bridged: 130 watts x 2 channel @ 4 ohm
• Total RMS Power: 300 watts
• Class D 2 ohm Stable 4-Channel Amplifier

VIP Star Icon

VIP Product Get $28.00 in rewards to spend later

1

• 50 watts x 4 channel @ 4 ohm
• 65 watts x 4 channel @ 2 ohm
• Bridged: 130 watts x 2 channel @ 4 ohm
• Total RMS Power: 300 watts
• Class D 2 ohm Stable 4-Channel Amplifier

Massive Audio BP1000.4 v2

1000W Peak (640W RMS) Class AB BLADE BP Series 4 Channel Car Amplifier

BP1000.4 v2 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Massive Audio BP1000.4 v2

1000W Peak (640W RMS) Class AB BLADE BP Series 4 Channel Car Amplifier

• 80 watts x 4 channel @ 4 ohm
• 160 watts x 4 channel @ 2 ohm
• Bridged: 320 watts x 2 channel @ 4 ohm
• Total RMS Power: 640 watts
• Class A/B 2 ohm Stable 4-Channel Amplifier

VIP Star Icon

VIP Product Get $16.00 in rewards to spend later

3

• 80 watts x 4 channel @ 4 ohm
• 160 watts x 4 channel @ 2 ohm
• Bridged: 320 watts x 2 channel @ 4 ohm
• Total RMS Power: 640 watts
• Class A/B 2 ohm Stable 4-Channel Amplifier

Boss AR1600.4

1600W Peak (1200W RMS) ARMOR Series Class-AB 4-Channel Amplifier with Bass Remote

AR1600.4 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Boss AR1600.4

1600W Peak (1200W RMS) ARMOR Series Class-AB 4-Channel Amplifier with Bass Remote

• 150 watts x 4 channel @ 4 ohm
• 300 watts x 4 channel @ 2 ohm
• Bridged: 600 watts x 2 channel @ 4 ohm
• Total RMS Power: 600 watts
• Class A/B 2 ohm Stable 4-Channel Amplifier

6

• 150 watts x 4 channel @ 4 ohm
• 300 watts x 4 channel @ 2 ohm
• Bridged: 600 watts x 2 channel @ 4 ohm
• Total RMS Power: 600 watts
• Class A/B 2 ohm Stable 4-Channel Amplifier

Crunch PZ2-2030.4D

2000W RMS Powerzone Series Class-D 4-Channel Amplifier

PZ2-2030.4D big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Crunch PZ2-2030.4D

2000W RMS Powerzone Series Class-D 4-Channel Amplifier

• 500 watts x 4 channel @ 4 ohm
• 250 watts x 4 channel @ 2 ohm
• Bridged: 1000 watts x 2 channel @ 4 ohm
• Total RMS Power: 2000 watts
• Class D 2 ohm Stable 4-Channel Amplifier

• 500 watts x 4 channel @ 4 ohm
• 250 watts x 4 channel @ 2 ohm
• Bridged: 1000 watts x 2 channel @ 4 ohm
• Total RMS Power: 2000 watts
• Class D 2 ohm Stable 4-Channel Amplifier

Memphis MXA600.4

600W RMS Class D Xtreme Audio Series 4 Channel Marine and Powersports Amplifier

MXA600.4 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Memphis MXA600.4

600W RMS Class D Xtreme Audio Series 4 Channel Marine and Powersports Amplifier

• 130 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 $42.00 in rewards to spend later

• 130 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

DC Audio 175.4K (175.4)

1000W Competition Series 4-Channel Class AB Amplifier

175.4K big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

DC Audio 175.4K (175.4)

1000W Competition Series 4-Channel Class AB Amplifier

• RMS Power: 175W x 4 @ 4 ohm, 250W x 4 @ 2 ohm
• Signal to Noise Ratio: 105dB
• Variable High and Low Pass Filters
• Dimensions: 9.38" W x 20.59" L x 2.35" H

5

• RMS Power: 175W x 4 @ 4 ohm, 250W x 4 @ 2 ohm
• Signal to Noise Ratio: 105dB
• Variable High and Low Pass Filters
• Dimensions: 9.38" W x 20.59" L x 2.35" H

Precision Power PC700.4D

700W RMS Class D Vertical PowerClass Series 4 Channel Car Amplifier with Bass Remote

PC700.4D big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Precision Power PC700.4D

700W RMS Class D Vertical PowerClass Series 4 Channel Car Amplifier with Bass Remote

• 120 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 Amplifier

VIP Star Icon

VIP Product Get $20.00 in rewards to spend later

1

• 120 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 Amplifier

JL Audio JX400/4D

400W RMS JX Series 4-Channel Class D Full-Range Amplifier

JX400/4D big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

JL Audio JX400/4D

400W RMS JX Series 4-Channel Class D Full-Range Amplifier

• Peak: 70W x 4 @ 4 ohm, 100W x 4 @ 2 ohm, 200W x 2 @ 4 ohm Bridged
• Unregulated PWM switching type power supply
• Class D Circuitry
• Defeatable 12 dB / octave filter
• Speaker-level (high-level) inputs with included harness
• Dimensions: 7.68"W x 9.05"L x 2.09"H

3

• Peak: 70W x 4 @ 4 ohm, 100W x 4 @ 2 ohm, 200W x 2 @ 4 ohm Bridged
• Unregulated PWM switching type power supply
• Class D Circuitry
• Defeatable 12 dB / octave filter
• Speaker-level (high-level) inputs with included harness
• Dimensions: 7.68"W x 9.05"L x 2.09"H

Sony XM-GS4

600W Peak (320W RMS) GS Series Class-D 4-Channel Amplifier

XM-GS4 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Sony XM-GS4

600W Peak (320W RMS) GS Series Class-D 4-Channel Amplifier

• 70 watts x 4 channel @ 4 ohm
• 80 watts x 4 channel @ 2 ohm
• Bridged: 160 watts x 2 channel @ 4 ohm
• Total RMS Power: 320 watts
• Class D 2 ohm Stable 4-Channel Amplifier

VIP Star Icon

VIP Product Get $19.80 in rewards to spend later

4

• 70 watts x 4 channel @ 4 ohm
• 80 watts x 4 channel @ 2 ohm
• Bridged: 160 watts x 2 channel @ 4 ohm
• Total RMS Power: 320 watts
• Class D 2 ohm Stable 4-Channel Amplifier

Focal FPX4.800 (FPX 4.800)

4-Channel Class D Premium Amplifier

FPX 4.800 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Focal FPX4.800 (FPX 4.800)

4-Channel Class D Premium Amplifier

• 4-Channel Class D Amplifier
• 120W RMS x 4 at 4 ohm
• 185 W RMS x 4 at 2 ohm
• Bridged mode (4 Ohm): 370W RMS x 2
• Very small size for power output
• Audio Mos-Fets – Optimized efficiency

VIP Star Icon

VIP Product Get $60.00 in rewards to spend later

1

• 4-Channel Class D Amplifier
• 120W RMS x 4 at 4 ohm
• 185 W RMS x 4 at 2 ohm
• Bridged mode (4 Ohm): 370W RMS x 2
• Very small size for power output
• Audio Mos-Fets – Optimized efficiency

Planet Audio MB300.4D

MINI BANG 300W 4-Channel Full Range Class D Amplifier

MB300.4D big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Planet Audio MB300.4D

MINI BANG 300W 4-Channel Full Range Class D Amplifier

• Full Range 4-Channel Amp
• Speaker Level Inputs
• Variable High/Low Pass Filters
• Illuminated End Panel Strips

• Full Range 4-Channel Amp
• Speaker Level Inputs
• Variable High/Low Pass Filters
• Illuminated End Panel Strips

Crunch PZ-2020.4 (PZ 20204)

2000W Powerzone Series 2 ohm Stable 4-Channel Class-A/B Amplifier

PZ-2020.4 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Crunch PZ-2020.4 (PZ 20204)

2000W Powerzone Series 2 ohm Stable 4-Channel Class-A/B Amplifier

• 250 Watts Max x 4 @ 4 ohm
• 500 Watts Max x 4 @ 2 ohm
• 1000 Watts Max x 2 @ 4 ohm, Bridged
• Total Peak Power: 2000 Watts
• Preamp Outputs for Strapping Amplifiers
• 0-9dB Bass Boost
• Aluminum Heatsink

• 250 Watts Max x 4 @ 4 ohm
• 500 Watts Max x 4 @ 2 ohm
• 1000 Watts Max x 2 @ 4 ohm, Bridged
• Total Peak Power: 2000 Watts
• Preamp Outputs for Strapping Amplifiers
• 0-9dB Bass Boost
• Aluminum Heatsink

JBL CLUB-704

1000W Peak (400W RMS) Club Series 4-Channel Amplifier

CLUB-704 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

JBL CLUB-704

1000W Peak (400W RMS) Club Series 4-Channel Amplifier

• 70 Watts RMS x 4 @ 4 ohm
• 100 Watts RMS x 4 @ 2 ohm
• 200 Watts RMS Bridged x 2 @ 4 ohm
• Total Peak Power: 1000 Watts
• Slim chassis provides more flexible mounting options
• Split-dome convection heat-sink for extreme heat dissipation

4

• 70 Watts RMS x 4 @ 4 ohm
• 100 Watts RMS x 4 @ 2 ohm
• 200 Watts RMS Bridged x 2 @ 4 ohm
• Total Peak Power: 1000 Watts
• Slim chassis provides more flexible mounting options
• Split-dome convection heat-sink for extreme heat dissipation

Power Acoustik MOFO4-2KD

2000W Peak (600W RMS) Class D MOFO Series 4-Channel Tower Chassis Car Amplifier

MOFO4-2KD big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Power Acoustik MOFO4-2KD

2000W Peak (600W RMS) Class D MOFO Series 4-Channel Tower Chassis Car Amplifier

• 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 D 2 ohm Stable 4-Channel-Channel Amplifier

• 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 D 2 ohm Stable 4-Channel-Channel Amplifier

Prev 94 95 96 97 98 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

    1981 Buick Skylark

    1979 Mazda GLC

    1969 Ford Thunderbird

    1982 Dodge B350

    1998 Lexus GS300

    2017 Kia Niro

    2006 Ford E Series

    1998 Ford Windstar

    2016 Audi S6

    2002 BMW X5

    Vehicle
    Store     Delete

    2000 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 1979 GLC
    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