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1959 GMC 250

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

Overview 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 1959 GMC 250

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 (8)
BX Series (7)
CVP Series (7)
SALT Series (7)
V Series (7)
Brutus BRL Series (6)
Competition Series (6)
CX 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)
XDM Series (6)
Club Series (5)
Epic Series (5)
HD Series (5)
SAE Series (5)
Stroker RPM Series (5)
XQ Series (5)
Brutus BG Series (4)
EXL-P Series (4)
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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)
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XED Series (4)
CRA Series (3)
DMD Series (3)
Elite Series (3)
eXcelon Series (3)
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Hydro Series (3)
iON Series (3)
Mini Series (3)
MX Series (3)
Nautic Series (3)
PXA Series (3)
SAM Series (3)
Thunder Series (3)
ZR Series (3)
ACX Series (2)
Altitude Series (2)
Apocalypse Series (2)
Apocalypse Sport Series (2)
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COLOSSUS Mini Series (2)
Diamond Elite Series (2)
Excelon Reference Series (2)
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GM Series (2)
JA Series (2)
M2 Series (2)
MVi Series (2)
PowerHouse Shredder Series (2)
Premium Pro Series (2)
R-Series (2)
S Series (2)
SFB Series (2)
Stealth STX Series (2)
Stroker Series (2)
Terminator Series (2)
VEGA Series (2)
VFL Comp Series (2)
VFL Rebel Series (2)
VFL Stealth Series (2)
Alpha Series (1)
AP 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)
MOJO Pro Series (1)
MotorSport Series (1)
MUD Series (1)
N 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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DS18 FRP-3.5K/RD

3500W RMS Class D FRP Series Monoblock Car Amplifier with Bass Remote (Red)

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DS18 FRP-3.5K/RD

3500W RMS Class D FRP Series Monoblock Car Amplifier with Bass Remote (Red)

• 1000 watts x 1 channel @ 4 ohm
• 2000 watts x 1 channel @ 2 ohm
• 3500 watts x 1 channel @ 1 ohm
• Total RMS Power: 3500 watts
• Class D 1 ohm Stable Monoblock Amplifier

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Rockford Fosgate Punch Marine PM1000X1bd

1000W RMS Class BD Punch Series Monoblock Marine Amplifier

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Rockford Fosgate Punch Marine PM1000X1bd

1000W RMS Class BD Punch Series Monoblock Marine Amplifier

• 300 watts x 1 channel @ 4 ohm
• 500 watts x 1 channel @ 2 ohm
• Total RMS Power: 1000 watts
• Class BD 1 ohm Stable Monoblock Amplifier

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• 300 watts x 1 channel @ 4 ohm
• 500 watts x 1 channel @ 2 ohm
• Total RMS Power: 1000 watts
• Class BD 1 ohm Stable Monoblock Amplifier

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Deaf Bonce Apocalypse ASA 6000.1

6000W RMS Class D Apocalypse Sport Series Monoblock Car Amplifier

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Deaf Bonce Apocalypse ASA 6000.1

6000W RMS Class D Apocalypse Sport Series Monoblock Car Amplifier

• 2150 watts x 1 channel @ 4 ohm
• 3135 watts x 1 channel @ 2 ohm
• 6050 watts x 1 channel @ 1 ohm
• Bridged: 12100 watts @ 2 ohm
• Total RMS Power: 6000 watts
• Class D 1 ohm Stable Monoblock Subwoofer Amplifier

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DC Audio 9.0k

9000W RMS Class D Competition Series Monoblock Car Amplifier (with Bass Remote)

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DC Audio 9.0k

9000W RMS Class D Competition Series Monoblock Car Amplifier (with Bass Remote)

• 2400 watts x 1 channel @ 4 ohm
• 4800 watts x 1 channel @ 2 ohm
• 9000 watts x 1 channel @ 1 ohm
• Total RMS Power: 9000 watts
• Class D 1 ohm Stable Monoblock Amplifier

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DS18 H-KO5/RD

5000W RMS Class D Hooligan Series Monoblock Car Amplifier with Bass Remote and Voltmeter (Red)

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DS18 H-KO5/RD

5000W RMS Class D Hooligan Series Monoblock Car Amplifier with Bass Remote and Voltmeter (Red)

• 2200 watts x 1 channel @ 4 ohm
• 3500 watts x 1 channel @ 2 ohm
• 5000 watts x 1 channel @ 1 ohm
• Total RMS Power: 5000 watts
• Class D 4 ohm Stable Monoblock Amplifier

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Wet Sounds HTM-1

1200W RMS Class D HTM Series Monoblock Marine Amplifier with LED Backlit Badge

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Wet Sounds HTM-1

1200W RMS Class D HTM Series Monoblock Marine Amplifier with LED Backlit Badge

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

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

Wet Sounds Sinister-SDX2500

2500W RMS Class D Sinister Series Monoblock Marine Amplifier with Bass Remote

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Wet Sounds Sinister-SDX2500

2500W RMS Class D Sinister Series Monoblock Marine Amplifier with Bass Remote

• 1000 watts x 1 channel @ 4 ohm
• 1700 watts x 1 channel @ 2 ohm
• 2500 watts x 1 channel @ 1 ohm
• Total RMS Power: 2500 watts
• Class D 4 ohm Stable Monoblock Marine Amplifier

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• 1000 watts x 1 channel @ 4 ohm
• 1700 watts x 1 channel @ 2 ohm
• 2500 watts x 1 channel @ 1 ohm
• Total RMS Power: 2500 watts
• Class D 4 ohm Stable Monoblock Marine Amplifier

Crunch DR-2725.1D

2725W Peak Class D V-Drive Series Monoblock Car Amplifier (with Bass Remote)

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Crunch DR-2725.1D

2725W Peak Class D V-Drive Series Monoblock Car Amplifier (with Bass Remote)

• 1360 watts x 1 channel @ 4 ohm
• 2725 watts x 1 channel @ 2 ohm
• Total peak power output: 2725 watts
• Class D 2 ohm Stable Monoblock Amplifier

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Diamond Audio DMD500.1D with NVX 4 Gauge Amp Kit

500W RMS DMD Series Monoblock Class-D Amplifier

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Diamond Audio DMD500.1D with NVX 4 Gauge Amp Kit

500W RMS DMD Series Monoblock Class-D Amplifier

• 340 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
• Includes Amplifier Wiring Kit

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• 340 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
• Includes Amplifier Wiring Kit

Sundown SAM-1500D

1500W RMS Class D SAM Series Monoblock Marine and Powersport Amplifier

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Sundown SAM-1500D

1500W RMS Class D SAM Series Monoblock Marine and Powersport Amplifier

• 700 watts x 1 channel @ 4 ohm
• 1130 watts x 1 channel @ 2 ohm
• Total RMS Power: 1500 watts
• Class D 1 ohm Stable Monoblock Amplifier

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• 700 watts x 1 channel @ 4 ohm
• 1130 watts x 1 channel @ 2 ohm
• Total RMS Power: 1500 watts
• Class D 1 ohm Stable Monoblock Amplifier

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JBL Marine A1000 (JBLMA1000AM)

2000W Peak (1000W RMS) Class D Marine Series Monoblock Amplifier with Bass Remote

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JBL Marine A1000 (JBLMA1000AM)

2000W Peak (1000W RMS) Class D Marine Series 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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• 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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American Bass VFL REBEL 3000.1

3000W RMS Class D VFL Rebel Series Monoblock Full Range Amplifier

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American Bass VFL REBEL 3000.1

3000W RMS Class D VFL Rebel Series Monoblock Full Range Amplifier

• 980 watts x 1 channel @ 4 ohm
• 1905 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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Cerwin Vega SRPM1000.1DW

1000W RMS Class D Stroke RPM Series Monoblock Marine Amplifier with Bass Remote (White)

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Cerwin Vega SRPM1000.1DW

1000W RMS Class D Stroke RPM Series Monoblock Marine Amplifier with Bass Remote (White)

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

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Diamond Audio DES1000.1D

1000W RMS Class D Diamond Elite Series Monoblock Car Amplifier (with Bass Remote)

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Diamond Audio DES1000.1D

1000W RMS Class D Diamond Elite Series Monoblock Car Amplifier (with Bass Remote)

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

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

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Belva BXA15001 (Open Box, Great)

1500W Peak BX-Series Class-AB Monoblock Car Amplifier with Bass Remote

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Belva BXA15001 (Open Box, Great)

1500W Peak BX-Series Class-AB Monoblock Car Amplifier with Bass Remote

• 750 watts x 1 channel @ 4 ohm
• 1500 watts x 1 channel @ 2 ohm
• Total Peak Power: 1500 watts
• Class A/B 2 ohm Stable Monoblock

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DS18 FRP-5K/TI

5000W RMS Class D FRP Series Monoblock Car Amplifier with Bass Remote (Titanium)

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DS18 FRP-5K/TI

5000W RMS Class D FRP Series Monoblock Car Amplifier with Bass Remote (Titanium)

• 1500 watts x 1 channel @ 4 ohm
• 2900 watts x 1 channel @ 2 ohm
• 5000 watts x 1 channel @ 1 ohm
• Total RMS Power: 5000 watts
• Class D 1 ohm Stable Monoblock Amplifier

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DS18 ION600.1D

1800W Peak (600W RMS) Class D ION Series Full Range Monoblock Compact Car Amplifier with Bass Remote

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DS18 ION600.1D

1800W Peak (600W RMS) Class D ION Series Full Range Monoblock Compact Car Amplifier with Bass Remote

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

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List price $244.99
-17% $203.95

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DS18 SXE-1500.1D/RD

1500W Peak (500W RMS) Class D SXE Series Monoblock Car Amplifier with Bass Remote (Red)

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DS18 SXE-1500.1D/RD

1500W Peak (500W RMS) Class D SXE Series Monoblock Car Amplifier with Bass Remote (Red)

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

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-17% $203.95

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Cerwin Vega B51

1000W Peak (500W RMS) Class D Stealth Bomber Series Monoblock Car Amplifier with Bass Remote

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Cerwin Vega B51

1000W Peak (500W RMS) Class D Stealth Bomber Series Monoblock Car Amplifier with Bass Remote

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

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List price $359.99
-17% $299.99

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MTX Thunder TH750.1

750W RMS Class D Thunder Series Monoblock Car Amplifier with Bass Remote

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MTX Thunder TH750.1

750W RMS Class D Thunder Series Monoblock Car Amplifier with Bass Remote

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

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List price $549.95
Save $149.99
-27% $399.96

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FREE NVX Amp Kit at Checkout!
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    FAQ for Monoblock Sub Amplifiers in 1959 250

    Q: Can I upgrade or change the Monoblock Sub Amplifiers in 1959 GMC 250?

    A: Yes this page includes all the best Monoblock Sub Amplifiers that work in your 250.

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