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 Monoblock Amplifiers

Discontinued Monoblock Amplifiers

Match Amps to Subs
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.
Brutus Series (67)
Zeus Series (56)
CX Series (27)
X Series (23)
HD Series (22)
Prime Series (22)
Reference Series (21)
N Series (19)
ONYX Series (19)
Mean Machine Series (18)
Anarchy Series (16)
Brutus X 14 Series (16)
MD Series (16)
Armor Series (15)
GM Digital Series (15)
Gothic Series (15)
PowerZone Series (15)
SALT Series (15)
SFB Series (15)
Phantom Series (14)
Black Ice Series (13)
RD Series (13)
Torque Series (12)
V Series (12)
JD Series (11)
JX Series (11)
Kappa Series (11)
Mt. Olympus Series (11)
Slash v3 Series (11)
Apocalypse Series (10)
Bass Series (10)
BB Series (10)
MSA Series (10)
Power Series (10)
Riot Series (10)
SAEv4 Series (10)
Tarantula Series (10)
V Power Series (10)
BAMF Series (9)
Evolution Series (9)
Ground Pounder Series (9)
GTO Series (9)
Street Machine Series (9)
Chaos EXXtreme Series (8)
GFX Series (8)
KX Series (8)
Machete Series (8)
Reaper Series (8)
XDM Series (8)
XED Series (8)
BX Series (7)
Club Series (7)
Consumer Line Series (7)
Crypt Series (7)
D Series (7)
Nano Edge Series (7)
Picasso Series (7)
Q Series (7)
S Series (7)
SK Series (7)
Stroker Pro Series (7)
COLOSSUS Series (6)
DX Series (6)
Edge Series (6)
JAD Series (6)
Marine V Series (6)
Overdrive Series (6)
Performance Series (6)
Picasso-Nano Series (6)
Power One Series (6)
Power Reference (6)
Punch Series (6)
Razor Series (6)
XD-v2 Series (6)
APMI Series (5)
ATA Series (5)
AXL Series (5)
Big Bang Series (5)
Competition Series (5)
Discus Series (5)
HED Series (5)
MOJO Pro Series (5)
N-Series (5)
PDX Series (5)
Pulse Series (5)
Sedona Series (5)
SixFive Series (5)
Z-Line Series (5)
Alpha Series (4)
APK Series (4)
BD Series (4)
Chaos Epic Series (4)
Chaos EXXtreme II Series (4)
Elite Series (4)
EVO Series (4)
Formula Series (4)
Hercules LTD Series (4)
LP Series (4)
Nano BiT Series (4)
Street Reference Pro (4)
The Epicenter Series (4)
Trax Micro Series (4)
V-Drive Series (4)
VFL Series (4)
VXi Series (4)
XC-Series (4)
XQ Series (4)
XThunder Series (4)
ZRS Series (4)
Apocalypse Atom Pro Series (3)
APSM Series (3)
Arachnid Series (3)
BLADE BP Series (3)
eXcelon Series (3)
HCP Series (3)
JackHammer Series (3)
Mille Power Series (3)
Mini Series (3)
MOFO Series (3)
Opti Drive Series (3)
Power Class Series (3)
PowerZone 2 Series (3)
R-Series (3)
Saber Series (3)
SAE Series (3)
Smart Series (3)
Stadium Series (3)
Street Edge Series (3)
T Series (3)
Tarantula Xtreme Power Series (3)
Tarantula-NANO Series (3)
Thunder Series (3)
United Series (3)
USX Series (3)
VEGA Series (3)
Vertigo Series (3)
VFL Hybrid Series (3)
WCC Series (3)
X-Line Series (3)
XD Series (3)
Atom Series (2)
AX2 Series (2)
CANDY-X Series (2)
Compact Mean Machine Series (2)
CTX Series (2)
DPower Series (2)
EXL-P Series (2)
iON Series (2)
KXM Series (2)
Low Profile Series (2)
Momentum CSA Series (2)
Murdered Out Series (2)
MX Series (2)
Power X Series (2)
PRX Series (2)
Smart Bass (2)
Stage Series (2)
Venezia Series (2)
ZTX Series (2)
A3 Series (1)
ACM Series (1)
Bomber Series (1)
Brutus BG Series (1)
Chaos Series (1)
Charge Series (1)
COLOSSUS Mini Series (1)
Compact Series (1)
DRVN Series (1)
EXL Series (1)
Force Series (1)
GM Series (1)
GS Series (1)
HED3 Series (1)
HX Series (1)
LC Series (1)
Pioneer ME Series (1)
MINI BANG Series (1)
MVi Series (1)
PDR Series (1)
Phanatik Series (1)
Power Pack Series (1)
Prime R2 Series (1)
Primus Series (1)
Punch BR Series (1)
PXA Series (1)
Reference MYKRO Series (1)
Reserve Series (1)
Riot Model Series (1)
Rubicon Nano Series (1)
RX2 Series (1)
Salt Water Series (1)
SIA Series (1)
SQ Series (1)
Status Series (1)
Stealth Series (1)
Stealth Shot Series (1)
Street Reference (1)
TA Series (1)
Terminator Series (1)
Trax Series (1)
Tsunami Series (1)
VFL Comp Series (1)
WET Series (1)
Xenith Series (1)
XR Series (1)
ZR 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

Find compatible amplifiers for subs you own or want with our powerful AmpliFinder® tool.

Match Amps to Subs

Shop the Category

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

Rockford Fosgate Prime R250X1

250W RMS Monoblock Single Channel Class AB Prime Series Amplifier

R250X1 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Rockford Fosgate Prime R250X1

250W RMS Monoblock Single Channel Class AB Prime Series Amplifier

• RMS: 150W x 1 @ 4 ohm, 250W x 1 @ 2 ohm
• Total RMS Power: 250W
• CEA-2006 Compliant
• Punch Bass: 0 to +12 dB
• Wired Bass Remote Included
• Dimensions: 11-1/4"L x 6-3/4"W x 2"H

10

• RMS: 150W x 1 @ 4 ohm, 250W x 1 @ 2 ohm
• Total RMS Power: 250W
• CEA-2006 Compliant
• Punch Bass: 0 to +12 dB
• Wired Bass Remote Included
• Dimensions: 11-1/4"L x 6-3/4"W x 2"H

Belva BB2000Dv2 (BB2000D v2)

2000W Max Class D Monoblock BB Series Version 2 Car Amplifier

BB2000Dv2 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Belva BB2000Dv2 (BB2000D v2)

2000W Max Class D Monoblock BB Series Version 2 Car Amplifier

• RMS: 540W x 1 @ 4 ohm, 900W x 1 @ 2 ohm, 1200W x 1 @ 1 ohm
• Total Peak Power: 2000W
• 1 Pair of Preamp Outputs
• Bass Boost 0-12 dB at 30 - 80 Hz
• Subsonic Filter From Off - 50 Hz
• Dimensions: 12-1/2"W x 8-1/4"D x 2-1/4"H

10

• RMS: 540W x 1 @ 4 ohm, 900W x 1 @ 2 ohm, 1200W x 1 @ 1 ohm
• Total Peak Power: 2000W
• 1 Pair of Preamp Outputs
• Bass Boost 0-12 dB at 30 - 80 Hz
• Subsonic Filter From Off - 50 Hz
• Dimensions: 12-1/2"W x 8-1/4"D x 2-1/4"H

JL Audio JD1000/1 (Like New (Open Box))

1000W RMS Class D JD Series Monoblock Car Amplifier

JD1000/1 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

JL Audio JD1000/1 (Like New (Open Box))

1000W RMS Class D JD Series Monoblock Car Amplifier

• 600 watts x 1 channel @ 4 ohm
• 1000 watts x 1 channel @ 2 ohm
• Total RMS Power: 1000 watts
• Class D 2 ohm Stable Monoblock Amplifier

• 600 watts x 1 channel @ 4 ohm
• 1000 watts x 1 channel @ 2 ohm
• Total RMS Power: 1000 watts
• Class D 2 ohm Stable Monoblock Amplifier

Planet Audio PL4000.1D

4000W Max Pulse Series Class-D 1-Ohm Stable Monoblock Power Amplifier

PL4000.1D big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Planet Audio PL4000.1D

4000W Max Pulse Series Class-D 1-Ohm Stable Monoblock Power Amplifier

• 750 Watts RMS x 1 @ 4 ohm
• 1000 Watts RMS x 1 @ 2 ohm
• 2000 Watts RMS x 1 @ 1 Ohm
• Total Peak Power: 4000 Watts
• Frequency Response: 15Hz - 150Hz
• 3-way protection circuitry
• Variable low-pass filter: 50Hz to 150Hz

13

• 750 Watts RMS x 1 @ 4 ohm
• 1000 Watts RMS x 1 @ 2 ohm
• 2000 Watts RMS x 1 @ 1 Ohm
• Total Peak Power: 4000 Watts
• Frequency Response: 15Hz - 150Hz
• 3-way protection circuitry
• Variable low-pass filter: 50Hz to 150Hz

Kicker CXA1800.1 (46CXA18001T) (Like New (Open Box))

1800W RMS Class D CX Series Monoblock Car Amplifier

CXA1800.1 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Kicker CXA1800.1 (46CXA18001T) (Like New (Open Box))

1800W RMS Class D CX Series Monoblock Car Amplifier

• 900 watts x 1 channel @ 4 ohm
• 1800 watts x 1 channel @ 2 ohm
• 1800 watts x 1 channel @ 1 ohm
• Total RMS Power: 1800 watts
• Class D 1 ohm Stable Monoblock Amplifier

• 900 watts x 1 channel @ 4 ohm
• 1800 watts x 1 channel @ 2 ohm
• 1800 watts x 1 channel @ 1 ohm
• Total RMS Power: 1800 watts
• Class D 1 ohm Stable Monoblock Amplifier

Rockford Fosgate R2-500X1 (Open Box, Good)

500W RMS Class D Prime Series Monoblock Car Amplifier

R2-500X1 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Rockford Fosgate R2-500X1 (Open Box, Good)

500W RMS Class D Prime Series Monoblock Car Amplifier

• 300 watts x 1 channel @ 4 ohm
• 500 watts x 1 channel @ 2 ohm
• Total RMS Power: 500 watts
• Class D 2 ohm Stable Monoblock Amplifier

• 300 watts x 1 channel @ 4 ohm
• 500 watts x 1 channel @ 2 ohm
• Total RMS Power: 500 watts
• Class D 2 ohm Stable Monoblock Amplifier

Alphasonik PMA1000DA R/B

Factory Refurbished Class D Monoblock Amplifier

PMA1000DA big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Alphasonik PMA1000DA R/B

Factory Refurbished Class D Monoblock Amplifier

1-Channel Class D Monoblock Power Amplifier • 2060 watts x 1 chan. at 1 Ohm • 1500 watts x 1 chan. at 2 Ohm • 1000 watts x 1 chan. at 4 Ohm • Digital voltmeter • Remote bass control

1-Channel Class D Monoblock Power Amplifier • 2060 watts x 1 chan. at 1 Ohm • 1500 watts x 1 chan. at 2 Ohm • 1000 watts x 1 chan. at 4 Ohm • Digital voltmeter • Remote bass control

Belva BB5000Dv2 (BB5000D v2)

5000W Max (3000W RMS) Class-D Monoblock BB Series Car Amplifier

BB5000Dv2 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Belva BB5000Dv2 (BB5000D v2)

5000W Max (3000W RMS) Class-D Monoblock BB Series Car Amplifier

• RMS: 1200W x 1 @ 4 ohm, 1800W x 1 @ 2 ohm, 3000W x 1 @ 1 ohm
• Total Peak Power: 5000W
• 1 Pair of Preamp Outputs
• Bass Boost 0-12 dB from 30-80 Hz
• Subsonic Filter from 20-50 Hz
• Dimensions: 20-3/8"W x 8-1/4"D x 2-1/4"H

19

• RMS: 1200W x 1 @ 4 ohm, 1800W x 1 @ 2 ohm, 3000W x 1 @ 1 ohm
• Total Peak Power: 5000W
• 1 Pair of Preamp Outputs
• Bass Boost 0-12 dB from 30-80 Hz
• Subsonic Filter from 20-50 Hz
• Dimensions: 20-3/8"W x 8-1/4"D x 2-1/4"H

Alpine S2-A120M (Like New (Open Box))

1200W Class D RMS S-Series Monoblock Car Amplifier

S2-A120M big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Alpine S2-A120M (Like New (Open Box))

1200W Class D RMS S-Series Monoblock Car Amplifier

• 600 watts x 1 channel @ 4 ohm
• 1200 watts x 1 channel @ 2 ohm
• 1200 watts x 1 channel @ 1 ohm
• Total RMS Power: 1200 watts
• Class D 1 ohm Stable Monoblock Amplifier

• 600 watts x 1 channel @ 4 ohm
• 1200 watts x 1 channel @ 2 ohm
• 1200 watts x 1 channel @ 1 ohm
• Total RMS Power: 1200 watts
• Class D 1 ohm Stable Monoblock Amplifier

Alpine R2-A75M (Like New (Open Box))

750W RMS Class D R-Series Monoblock Car Amplifier

R2-A75M big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Alpine R2-A75M (Like New (Open Box))

750W RMS Class D R-Series Monoblock Car Amplifier

• 500 watts x 1 channel @ 4 ohm
• 750 watts x 1 channel @ 2 ohm
• Total RMS Power: 750 watts
• Class D 2 ohm Stable Monoblock Amplifier

• 500 watts x 1 channel @ 4 ohm
• 750 watts x 1 channel @ 2 ohm
• Total RMS Power: 750 watts
• Class D 2 ohm Stable Monoblock Amplifier

JL Audio RD1000/1 (Open Box, Good)

1000W RMS Class D RD Series Monoblock Car Amplifier

RD1000/1 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

JL Audio RD1000/1 (Open Box, Good)

1000W RMS Class D RD Series Monoblock Car Amplifier

• 600 watts x 1 channel @ 4 ohm
• 800 watts x 1 channel @ 3 ohm
• 1000 watts x 1 channel @ 2 ohm
• Total RMS Power: 1000 watts
• Class D 2 ohm Stable Monoblock Amplifier

• 600 watts x 1 channel @ 4 ohm
• 800 watts x 1 channel @ 3 ohm
• 1000 watts x 1 channel @ 2 ohm
• Total RMS Power: 1000 watts
• Class D 2 ohm Stable Monoblock Amplifier

Alpine S2-A120M (Open Box, Great)

1200W Class D RMS S-Series Monoblock Car Amplifier

S2-A120M big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Alpine S2-A120M (Open Box, Great)

1200W Class D RMS S-Series Monoblock Car Amplifier

• 600 watts x 1 channel @ 4 ohm
• 1200 watts x 1 channel @ 2 ohm
• 1200 watts x 1 channel @ 1 ohm
• Total RMS Power: 1200 watts
• Class D 1 ohm Stable Monoblock Amplifier

• 600 watts x 1 channel @ 4 ohm
• 1200 watts x 1 channel @ 2 ohm
• 1200 watts x 1 channel @ 1 ohm
• Total RMS Power: 1200 watts
• Class D 1 ohm Stable Monoblock Amplifier

Taramps HD 3000 - 1 OHM (Open Box, Good)

3000W RMS HD Series 1-Ohm Stable Class-D Monoblock Amplifier

HD 3000 - 1 OHM big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Taramps HD 3000 - 1 OHM (Open Box, Good)

3000W RMS HD Series 1-Ohm Stable Class-D Monoblock Amplifier

• 1140 watts x 1 channel @ 4 ohm
• 2025 watts x 1 channel @ 2 ohm
• 3000 watts x 1 channel @ 1 ohm
• Total RMS Power: 3000 watts
• Class D 1 ohm Stable Monoblock Amplifier

1

• 1140 watts x 1 channel @ 4 ohm
• 2025 watts x 1 channel @ 2 ohm
• 3000 watts x 1 channel @ 1 ohm
• Total RMS Power: 3000 watts
• Class D 1 ohm Stable Monoblock Amplifier

Hifonics Brutus Class D 1200W RMS 1 Ohm Mono Car Subwoofer Amplifier (2 Pack)

Hifonics Brutus Class D 1200W RMS 1 Ohm Mono Car Subwoofer Amplifier (2 Pack)

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

Hifonics Brutus Class D 1200W RMS 1 Ohm Mono Car Subwoofer Amplifier (2 Pack)

Hifonics Brutus Class D 1200W RMS 1 Ohm Mono Car Subwoofer Amplifier (2 Pack)

• 400W Max x 1 @ 4 ohm
• 600W Max x 1 @ 2 ohm
• 1200W Max x 1 @ 1 ohm
• Total Peak Power: 1200 Watts
• Low Pass and Subsonic Filters
• 0-10 Bass Boost
• Aluminum Heatsink
• 9" W x 13.25" L x 2.5" H

• 400W Max x 1 @ 4 ohm
• 600W Max x 1 @ 2 ohm
• 1200W Max x 1 @ 1 ohm
• Total Peak Power: 1200 Watts
• Low Pass and Subsonic Filters
• 0-10 Bass Boost
• Aluminum Heatsink
• 9" W x 13.25" L x 2.5" H

MTX TH1200.1D Open Box

Monoblock TH Series Class D Car Amplifier

TH1200.1D big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

MTX TH1200.1D Open Box

Monoblock TH Series Class D Car Amplifier

Monoblock TH Series Class D Car Amplifier • 4 ohm: 400 watts x 1 chan. • 2 ohm: 800 watts x 1 chan. • 1 ohm: 1200 watts x 1 chan. bull; Heavy Duty Aluminum Alloy Heat-Sink

1

Monoblock TH Series Class D Car Amplifier • 4 ohm: 400 watts x 1 chan. • 2 ohm: 800 watts x 1 chan. • 1 ohm: 1200 watts x 1 chan. bull; Heavy Duty Aluminum Alloy Heat-Sink

Hifonics Zeus 1200-Watt Max Class D Monoblock Car Audio Amplifier (2 Pack)

Hifonics Zeus 1200-Watt Max Class D Monoblock Car Audio Amplifier (2 Pack)

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

Hifonics Zeus 1200-Watt Max Class D Monoblock Car Audio Amplifier (2 Pack)

Hifonics Zeus 1200-Watt Max Class D Monoblock Car Audio Amplifier (2 Pack)

• 400 Watts Peak x 1 @ 4 ohm
• 600 Watts Peak x 1 @ 2 ohm
• 1,200 Watts Peak x 1 @ 1 ohm
• Total Peak Power: 1,200 Watts
• Low-Pass and Sub-Sonic Filters
• Variable Bass Boost
• Aluminum Heatsink
• 12.6" W x 10" L x 2.4" H

6

• 400 Watts Peak x 1 @ 4 ohm
• 600 Watts Peak x 1 @ 2 ohm
• 1,200 Watts Peak x 1 @ 1 ohm
• Total Peak Power: 1,200 Watts
• Low-Pass and Sub-Sonic Filters
• Variable Bass Boost
• Aluminum Heatsink
• 12.6" W x 10" L x 2.4" H

Memphis PRX400.1V2 (Open Box, Good)

400W RMS Class D Power Reference Series Monoblock Car Amplifier with Bass Remote

PRX400.1V2 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Memphis PRX400.1V2 (Open Box, Good)

400W RMS Class D Power Reference Series Monoblock Car Amplifier with Bass Remote

• 230 watts x 1 channel @ 4 ohm
• 400 watts x 1 channel @ 2 ohm
• Total RMS Power: 400 watts
• Class D 2 ohm Stable Monoblock Amplifier

• 230 watts x 1 channel @ 4 ohm
• 400 watts x 1 channel @ 2 ohm
• Total RMS Power: 400 watts
• Class D 2 ohm Stable Monoblock Amplifier

Rockford Fosgate R2-500X1 (Like New (Open Box))

500W RMS Class D Prime Series Monoblock Car Amplifier

R2-500X1 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Rockford Fosgate R2-500X1 (Like New (Open Box))

500W RMS Class D Prime Series Monoblock Car Amplifier

• 300 watts x 1 channel @ 4 ohm
• 500 watts x 1 channel @ 2 ohm
• Total RMS Power: 500 watts
• Class D 2 ohm Stable Monoblock Amplifier

• 300 watts x 1 channel @ 4 ohm
• 500 watts x 1 channel @ 2 ohm
• Total RMS Power: 500 watts
• Class D 2 ohm Stable Monoblock Amplifier

Sundown Audio SAEv.4-2000.1D (Open Box, Good)

2000W RMS Class D SAE Series Monoblock Car Amplifier with Bass Remote (SAEv.4-2000D)

SAEv.4-2000.1D big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Sundown Audio SAEv.4-2000.1D (Open Box, Good)

2000W RMS Class D SAE Series Monoblock Car Amplifier with Bass Remote (SAEv.4-2000D)

• 875 watts x 1 channel @ 4 ohm
• 1300 watts x 1 channel @ 2 ohm
• 2000 watts x 1 channel @ 1 ohm
• Total RMS Power: 2000 watts
• Class D 1 ohm Stable Monoblock Amplifier

• 875 watts x 1 channel @ 4 ohm
• 1300 watts x 1 channel @ 2 ohm
• 2000 watts x 1 channel @ 1 ohm
• Total RMS Power: 2000 watts
• Class D 1 ohm Stable Monoblock Amplifier

Soundstream ST1.500D

500W Peak (250W RMS) Class D Stealth Shot Series Compact Monoblock Car Amplifier

ST1.500D big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Soundstream ST1.500D

500W Peak (250W RMS) Class D Stealth Shot Series Compact Monoblock Car Amplifier

• 150 watts x 1 channel @ 4 ohm
• 250 watts x 1 channel @ 2 ohm
• Total RMS Power: 250 watts
• Class D 2 ohm Stable Monoblock Amplifier

• 150 watts x 1 channel @ 4 ohm
• 250 watts x 1 channel @ 2 ohm
• Total RMS Power: 250 watts
• Class D 2 ohm Stable Monoblock Amplifier

Prev 114 115 116 117 118 Next

Items per page: 20 40 60

    Clear all

    FAQ Frequently asked questions in Discontinued Monoblock Amplifiers

    A monoblock amplifier is a single-channel amplifier designed to power a single speaker or subwoofer. Unlike multi-channel amplifiers that can power multiple speakers simultaneously, a monoblock amplifier is dedicated to driving a specific speaker, typically a subwoofer. The advantage of a monoblock amplifier lies in its specialized design, which allows it to deliver higher power output to the subwoofer without interference from other speakers. This dedicated power delivery results in enhanced bass response and cleaner, more impactful low-frequency reproduction, making monoblock amplifiers a popular choice for car audio enthusiasts seeking powerful bass performance.
    Monoblock amplifiers are specifically designed to power subwoofers and are not intended for use with other speakers in your audio system. They usually have a single output channel optimized for low-frequency signals, making them unsuitable for driving mid-range or high-frequency speakers. For other speakers like door speakers or tweeters, you should use multi-channel amplifiers or dedicated channels on an audio processor. Using a monoblock amplifier for full-range speakers can result in poor audio performance and potential damage to the speakers.
    Monoblock amplifiers are compatible with most subwoofers, but it's crucial to consider the amplifier's power output and the subwoofer's power handling capabilities. The amplifier's power rating should match or slightly exceed the subwoofer's RMS power handling to ensure optimal performance and prevent overloading the subwoofer. Additionally, check the impedance (ohms) of both the amplifier and the subwoofer to ensure they match. Most monoblock amplifiers can handle both 2-ohm and 4-ohm loads, but some can also operate at 1-ohm, providing flexibility in subwoofer wiring configurations.
    No, monoblock amplifiers are not designed for bridging, as they are already single-channel amplifiers dedicated to powering a single subwoofer. Attempting to bridge a monoblock amplifier can cause damage to the amplifier and subwoofers. If you need to power multiple subwoofers, consider using multi-channel amplifiers or multiple monoblock amplifiers, each dedicated to driving a separate subwoofer. Sonic Electronix offers a wide selection of multi-channel amplifiers that can power multiple subwoofers simultaneously, ensuring optimal performance and protection for your audio system.
    Monoblock amplifiers can generate a significant amount of heat, especially when driving powerful subwoofers at high volume levels. While they don't require special cooling or ventilation compared to other amplifier types, it's essential to provide adequate airflow around the amplifier to dissipate heat effectively. Avoid mounting the amplifier in enclosed spaces or areas with limited ventilation, as this can lead to overheating and reduced performance. In some cases, installing a cooling fan or using amplifier cooling solutions can help maintain optimal operating temperatures. If you have concerns about amplifier heat, Sonic Electronix's knowledgeable staff can recommend suitable cooling solutions for your specific setup. Monoblock amplifiers are an excellent choice for enhancing the bass performance in your car audio system, providing dedicated power delivery to your subwoofers for impactful and detailed low-frequency sound reproduction. When used correctly and matched with the right subwoofers, monoblock amplifiers can elevate your car audio experience to new depths of bass excellence.
    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 BMW 750Li xDrive

    2007 Mitsubishi Eclipse Spyder

    2024 Kia Niro

    1981 Mazda GLC

    2005 Toyota Solara

    1981 GMC C1500 Suburban

    2006 Chevrolet HHR

    1973 Buick Century

    2021 Ford Ranger

    1983 Ford F-250

    Vehicle
    Store     Delete

    2007 Harley Davidson FXST Softail Standard

    2004 Harley Davidson FLHT Electra Glide Standard

    Vehicle
    Store     Delete

    2019 Can-Am Commander 800R DPS

    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 750Li xDrive
    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