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2003 Mazda B2300

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Single, 1-channel monoblock sub amplifiers for when you add a sub

Overview Upgrade your Stereo Upgrade your Speakers Add a Subwoofer Add an Amplifier Digital Sound Processors Audio Installation & Accessories Add a Backup Camera Dads & Grads Sale

Amplifiers for Powering a Sub for 2003 Mazda B2300

Some vehicles require an amp bypass module, a line-output converter like the NVX XLCA2 or AudioControl LC2i, or a DSP to integrate with your factory radio and avoid bass roll-off. Bass roll-off occurs when a factory radio's crossover is designed only for the original equipment speakers, resulting in a not complete signal being sent to your new aftermarket amp.

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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.
Power Series (17)
Punch Series (16)
Prime Series (14)
FRP Series (12)
Apocalypse Atom Pro Series (9)
BX Series (8)
CVP Series (7)
CX Series (7)
SALT Series (7)
Brutus BRL Series (6)
Competition Series (6)
Godfather Series (6)
Hooligan Series (6)
JD Series (6)
RD Series (6)
Reference Series (6)
SIA Series (6)
SMD Series (6)
Stroker Pro Series (6)
V Series (6)
XDM Series (6)
Club Series (5)
Epic Series (5)
HD Series (5)
SAE Series (5)
Stroker RPM Series (5)
Brutus BG Series (4)
LX Series (4)
MA Series (4)
Machete Series (4)
N-Series (4)
Power Pack Series (4)
RS Series (4)
SXE Series (4)
V-Drive Series (4)
VXi Series (4)
XC-Series (4)
XED Series (4)
CRA Series (3)
DMD Series (3)
Elite Series (3)
eXcelon Series (3)
Formula Series (3)
Ground Pounder Series (3)
HEX Series (3)
Hydro Series (3)
iON Series (3)
Mini Series (3)
MX Series (3)
Nautic Series (3)
R-Series (3)
SAM Series (3)
Thunder Series (3)
VEGA Series (3)
XQ Series (3)
ZR Series (3)
ACX Series (2)
Altitude Series (2)
Apocalypse Series (2)
Apocalypse Sport Series (2)
BB Series (2)
COLOSSUS Mini Series (2)
Diamond Elite Series (2)
Excelon Reference Series (2)
EXL Series (2)
EXL-P Series (2)
GM Series (2)
JA Series (2)
M2 Series (2)
MVi Series (2)
PowerHouse Shredder Series (2)
Premium Pro Series (2)
PXA Series (2)
S Series (2)
SFB Series (2)
Stealth STX Series (2)
Stroker Series (2)
Terminator Series (2)
VFL Comp Series (2)
VFL Rebel Series (2)
VFL Stealth Series (2)
Alpha Series (1)
AP Series (1)
BD Series (1)
Colossus Classic Series (1)
COLOSSUS Series (1)
Compact Mean Machine Series (1)
CVPM Series (1)
Discus Series (1)
DPower Series (1)
DRVN Series (1)
DXM Series (1)
EV Series (1)
Excelon Motorsports Series (1)
FX Series (1)
Gen-X (1)
GM Digital Series (1)
HCCA Series (1)
HCP Series (1)
HED Series (1)
HMP Series (1)
HRPM Series (1)
HTM Series (1)
HXM Series (1)
Key Series (1)
KM Series (1)
KPX Series (1)
KXM Series (1)
LC Series (1)
M Series (1)
M5 Series (1)
Marine Series (1)
MDX Series (1)
Mean Machine Series (1)
MHD Series (1)
Micro8U Series (1)
MicroV2 Series (1)
MINI BANG Series (1)
MotorSport Series (1)
MUD Series (1)
Performance Series (1)
Picasso-Nano Series (1)
Primo Series (1)
Primus Series (1)
PS Series (1)
Q-Series (1)
Reserve Series (1)
RTX Series (1)
SAEv4 Series (1)
Sinister Series (1)
SPL Show Series (1)
Stage GT Series (1)
Status Series (1)
Stealth Bomber Series (1)
Street Reference (1)
Venezia Series (1)
Warhorse Series (1)
X Series (1)
XFL 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.
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Diamond Audio HX800.1D

800W RMS Class D Hex Series Monoblock Car Amplifier (with Bass Remote)

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Diamond Audio HX800.1D

800W RMS Class D Hex Series Monoblock Car Amplifier (with Bass Remote)

• 340 watts x 1 channel @ 4 ohm
• 560 watts x 1 channel @ 2 ohm
• 800 watts x 1 channel @ 1 ohm
• Total RMS Power: 800 watts
• Class D 1 ohm Stable Monoblock Amplifier

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Deaf Bonce Apocalypse ATOM 1600.1 PRO (Open Box, Good)

1600W RMS Class D Apocalypse Atom Pro Series Monoblock Car Amplifier with Bass Remote

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Deaf Bonce Apocalypse ATOM 1600.1 PRO (Open Box, Good)

1600W RMS Class D Apocalypse Atom Pro Series Monoblock Car Amplifier with Bass Remote

• 550 watts x 1 channel @ 4 ohm
• 1010 watts x 1 channel @ 2 ohm
• 1600 watts x 1 channel @ 1 ohm
• Total RMS Power: 1600 watts
• Class D 1 ohm Stable Monoblock Amplifier

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• 550 watts x 1 channel @ 4 ohm
• 1010 watts x 1 channel @ 2 ohm
• 1600 watts x 1 channel @ 1 ohm
• Total RMS Power: 1600 watts
• Class D 1 ohm Stable Monoblock Amplifier

NVX - Worth the Envy - Direct to Consumer Car Audio

Rockford Fosgate Prime R500X1D 500W RMS Mono Class D Amplifier + Amp Kit + Cap

500W RMS Prime Series Class D Monoblock Amplifier Package

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Rockford Fosgate Prime R500X1D 500W RMS Mono Class D Amplifier + Amp Kit + Cap

500W RMS Prime Series Class D Monoblock Amplifier Package

• RMS: 300W x 1 @ 4 ohm, 500W x 1 @ 2 ohm
• Total RMS Power: 500W
• CEA-2006 Compliant
• Remote PLC (Punch Level Control) Included
• Efficient Class-D circuit topology
• Dimensions: 8-1/2"L x 6-3/4"W x 2"H

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• RMS: 300W x 1 @ 4 ohm, 500W x 1 @ 2 ohm
• Total RMS Power: 500W
• CEA-2006 Compliant
• Remote PLC (Punch Level Control) Included
• Efficient Class-D circuit topology
• Dimensions: 8-1/2"L x 6-3/4"W x 2"H

JBL Club A1000 (AMPCBA1000AM)

200W Peak (1000W RMS) Class D Club Series Compact Monoblock Amplifier with Bass Remote

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JBL Club A1000 (AMPCBA1000AM)

200W Peak (1000W RMS) Class D Club Series Compact Monoblock Amplifier with Bass Remote

• 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

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AudioControl A800.1

800W RMS Class D Altitude Series Monoblock Car Amplifier

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AudioControl A800.1

800W RMS Class D Altitude Series Monoblock Car Amplifier

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

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AudioControl EPIC1000

1000W RMS Class D Epic Series Monoblock Car Amplifier with Bass Remote

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AudioControl EPIC1000

1000W RMS Class D Epic Series Monoblock Car Amplifier with Bass Remote

• 400 watts x 1 channel @ 4 ohm
• 700 watts x 1 channel @ 2 ohm
• 1000 watts x 1 channel @ 1 ohm
• Bridged (Strapped): 2000 watts x 1 channel @ 2 ohm
• Total RMS Power: 1000 watts
• Class D 1 ohm Stable Monoblock Amplifier

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• 400 watts x 1 channel @ 4 ohm
• 700 watts x 1 channel @ 2 ohm
• 1000 watts x 1 channel @ 1 ohm
• Bridged (Strapped): 2000 watts x 1 channel @ 2 ohm
• Total RMS Power: 1000 watts
• Class D 1 ohm Stable Monoblock Amplifier

NVX XCA3K

3000W RMS Class D XC-Series Monoblock Korean Competition Amplifier with Bass Remote

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NVX XCA3K

3000W RMS Class D XC-Series Monoblock Korean Competition Amplifier with Bass Remote

• 1000 watts x 1 channel @ 4 ohm
• 2000 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

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AudioControl EPIC500

500W RMS Class D Epic Series Monoblock Car Amplifier with Bass Remote

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AudioControl EPIC500

500W RMS Class D Epic Series Monoblock Car Amplifier with Bass Remote

• 250 watts x 1 channel @ 4 ohm
• 350 watts x 1 channel @ 2 ohm
• 500 watts x 1 channel @ 1 ohm
• 1000 watts x 1 channel (strapped) @ 2 ohm bridged
• Total RMS Power: 500 watts
• Class D 1 ohm Stable Monoblock Amplifier

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NVX XAPK4 + XIV25 (XKIT42 Sub)

NVX XAPK4 + XIV25 (XKIT42 Sub)

$109.99

$76.99

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Cerwin-Vega CVP1600.1D

1600W Peak (200W RMS) Class AB CVP Series Monoblock Car Amplifier with Bass Remote

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Cerwin-Vega CVP1600.1D

1600W Peak (200W RMS) Class AB CVP Series Monoblock Car Amplifier with Bass Remote

• 120 watts x 1 channel @ 4 ohm
• 200 watts x 1 channel @ 2 ohm
• Total RMS Power: 200 watts
• Class A/B 2 ohm Stable Monoblock Amplifier

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Sundown Audio SALT-6

6000W RMS Class D SALT Series Competition Monoblock Car Amplifier with Bass Remote (A-SALT6)

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Sundown Audio SALT-6

6000W RMS Class D SALT Series Competition Monoblock Car Amplifier with Bass Remote (A-SALT6)

• 1500 watts x 1 channel @ 4 ohm
• 3000 watts x 1 channel @ 2 ohm
• 6000 watts x 1 channel @ 1 ohm
• 12000 watts x 1 channel @ 2 ohm Bridged
• Total RMS Power: 6000 watts
• Class D 1 ohm Stable Monoblock Amplifier

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NVX XKIT02

NVX XKIT02

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$125.99

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Kicker LX850.1 (51LX8501)

1100W Peak (850W RMS) Class D LX-Series Monoblock Car Amplifier with Bass Remote

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Kicker LX850.1 (51LX8501)

1100W Peak (850W RMS) Class D LX-Series Monoblock Car Amplifier with Bass Remote

• 300 watts x 1 channel @ 4 ohm
• 500 watts x 1 channel @ 2 ohm
• 850 watts x 1 channel @ 1 ohm
• Total RMS Power: 850 watts
• Class D 1 ohm Stable Monoblock Amplifier

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NVX XKIT02

NVX XKIT02

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Kicker LX1650.1 (51LX16501)

2200W Peak (1650W RMS) Class D LX Series Monoblock Car Amplifier (with RGB LED-Lit Bass Remote)

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Kicker LX1650.1 (51LX16501)

2200W Peak (1650W RMS) Class D LX Series Monoblock Car Amplifier (with RGB LED-Lit Bass Remote)

• 550 watts x 1 channel @ 4 ohm
• 1000 watts x 1 channel @ 2 ohm
• 1650 watts x 1 channel @ 1 ohm
• Total RMS Power: 1650 watts
• Class D 1 ohm Stable Monoblock Amplifier

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NVX XKIT02

NVX XKIT02

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JL Audio MX500/1

500W RMS MX Series Class-D Monoblock Marine and Powersports Amplifier

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JL Audio MX500/1

500W RMS MX Series Class-D Monoblock Marine and Powersports 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

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$529.99

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• 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

Kenwood eXcelon XR1001-1

2000W Peak (1000W RMS) Class D eXcelon Reference Series Monoblock Car Amplifier with Bass Remote

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Kenwood eXcelon XR1001-1

2000W Peak (1000W RMS) Class D eXcelon Reference Series Monoblock Car Amplifier with Bass Remote

• 500 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

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Crunch GP-1500.1 Amplifier + Free Amp Wiring Kit

1500 Watts Ground Pounder Mono Subwoofer Car Amplifier

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Crunch GP-1500.1 Amplifier + Free Amp Wiring Kit

1500 Watts Ground Pounder Mono Subwoofer Car Amplifier

• Variable Electronic Crossover
• Bass Remote Included
• Subsonic Filter
• Switchable Bass Boost

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• Variable Electronic Crossover
• Bass Remote Included
• Subsonic Filter
• Switchable Bass Boost

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Kicker KMA800.1 (48KMA8001)

1200W Peak (800W RMS) Class D KM Series Monoblock Marine Amplifier with Bass Remote

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Kicker KMA800.1 (48KMA8001)

1200W Peak (800W RMS) Class D KM Series Monoblock Marine Amplifier with Bass Remote

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

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List price $349.99
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-27% $255.96

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

Limited time!

Alpine R2-A150M (Open Box, Great)

1500W RMS Class D R-Series Monoblock Car Amplifier

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Alpine R2-A150M (Open Box, Great)

1500W RMS Class D R-Series Monoblock Car Amplifier

• 700 watts x 1 channel @ 4 ohm
• 1200 watts x 1 channel @ 2 ohm
• Total RMS Power: 1500 watts
• Class D 1 ohm Stable Monoblock Amplifier

10% Off Open Box!
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List price $840.00
-25% $629.96
$566.96 with coupon | Price details

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• 700 watts x 1 channel @ 4 ohm
• 1200 watts x 1 channel @ 2 ohm
• Total RMS Power: 1500 watts
• Class D 1 ohm Stable Monoblock Amplifier

Diamond Audio MICRO81U

600W RMS Class D Micro8U Series Monoblock Car Amplifier (with Bass Remote)

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Diamond Audio MICRO81U

600W RMS Class D Micro8U Series Monoblock Car Amplifier (with Bass Remote)

• 400 watts x 1 channel @ 2 ohms
• 600 watts x 1 channel @ 1 ohm
• Bridged: 240 watts x 1 channel @ 4 ohms
• Bridged: 400 watts x 1 channel @ 2 ohms
• Bridged: 600 watts x 1 channel @ 1 ohms
• Total RMS Power: 600 watts
• Class D 2 ohm Stable Monoblock Amplifier

2+ offers available
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List price $569.99
-12% $499.99

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Available Offers (2) for Diamond Audio MICRO81U
FREE NVX Amp Kit at Checkout!
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Save 30% off an NVX XKIT82 Amp Kit at Checkout! Add a qualifying amplifier to your cart and save 30% on the NVX XKIT82 Amp Kit! No code needed — discount applies automatically at checkout.
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Diamond Audio DES500.1D

500W RMS Class D Diamond Elite Series Monoblock Car Amplifier with Bass Remote

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Diamond Audio DES500.1D

500W RMS Class D Diamond Elite Series Monoblock Car Amplifier with Bass Remote

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

2+ offers available
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$519.99

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Available Offers (2) for Diamond Audio DES500.1D
FREE NVX Amp Kit at Checkout!
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Save 30% on an NVX XKIT42 Amp Kit with Purchase! Add a qualifying amplifier to your cart and save 30% on the NVX XKIT42 Amp Kit! No code needed — discount applies automatically at checkout.
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Limited time!

Hifonics Brutus BRL2000.1

2000W RMS Class D Brutus BRL Series Monoblock Car Amplifier with Bass Remote

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Hifonics Brutus BRL2000.1

2000W RMS Class D Brutus BRL Series Monoblock Car Amplifier with Bass Remote

• 700 watts x 1 channel @ 4 ohm
• 1200 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

Save 30% off an NVX XKIT02 Amp Kit at Checkout!
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-13% $349.00

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    FAQ for Monoblock Sub Amplifiers in 2003 B2300

    Q: Can I upgrade or change the Monoblock Sub Amplifiers in 2003 Mazda B2300?

    A: Yes this page includes all the best Monoblock Sub Amplifiers that work in your B2300.

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