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  1. Home
  2. Alpine Store
  3. Discontinued Alpine Car Audio & Electronics
  4. Discontinued Alpine Car Amplifiers
  5. Discontinued Alpine Monoblock Amplifiers

Discontinued Alpine Monoblock Amplifiers

Power your bass with Alpine's monoblock amplifiers, designed for deep, resonant sound.

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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.
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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Alpine MRX-M55

550W RMS Monoblock Class D X-Power Series Car Amplifier

MRX-M55 big DISCONTINUED
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Alpine MRX-M55

550W RMS Monoblock Class D X-Power Series Car Amplifier

• RMS: 350W x 1 @ 4 ohm, 550W x 1 @ 2 ohm
• Total RMS Power: 550W
• CEA-2006 Compliant
• Bass Boost: 0-12 dB at 50 Hz
• Multi-Stage Power Management Circuit
• Dimensions: 9"L x 9-7/8"W x 2-1/4"H

3

• RMS: 350W x 1 @ 4 ohm, 550W x 1 @ 2 ohm
• Total RMS Power: 550W
• CEA-2006 Compliant
• Bass Boost: 0-12 dB at 50 Hz
• Multi-Stage Power Management Circuit
• Dimensions: 9"L x 9-7/8"W x 2-1/4"H

Alpine MRX-M240

2400W RMS Monoblock X-Power Series Class D Car Amplifier

MRX-M240 big DISCONTINUED
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Alpine MRX-M240

2400W RMS Monoblock X-Power Series Class D Car Amplifier

• RMS: 1500W x 1 @ 4 ohm, 2400W x 1 @ 2 ohm, 1000W x 1 @ 1 ohm
• Total RMS Power: 2400W
• CEA-2006 Compliant
• Bass Boost: 0-12 dB at 50 Hz
• Multi-Stage Power Management Circuit
• Dimensions: 18"W x 9"D x 2-1/4"H

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• RMS: 1500W x 1 @ 4 ohm, 2400W x 1 @ 2 ohm, 1000W x 1 @ 1 ohm
• Total RMS Power: 2400W
• CEA-2006 Compliant
• Bass Boost: 0-12 dB at 50 Hz
• Multi-Stage Power Management Circuit
• Dimensions: 18"W x 9"D x 2-1/4"H

Alpine MRX-M100

1000W RMS, Monoblock Class D X-Power Series Car Amplifier

MRX-M100 big DISCONTINUED
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Alpine MRX-M100

1000W RMS, Monoblock Class D X-Power Series Car Amplifier

MRX Series Monoblock Car Amplifier • 600W RMS @ 4 Ohm x 1 Chan. • 1000W RMS @ 2 Ohm x 1 Chan. • 500W RMS @ 1 Ohm x 1 Chan. • Variable Low-Pass Crossover • Variable Subsonic Crossover • Variable Bass Boost

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MRX Series Monoblock Car Amplifier • 600W RMS @ 4 Ohm x 1 Chan. • 1000W RMS @ 2 Ohm x 1 Chan. • 500W RMS @ 1 Ohm x 1 Chan. • Variable Low-Pass Crossover • Variable Subsonic Crossover • Variable Bass Boost

Alpine PDR-M65 + NVX XKIT42

650W RMS PDR Series Monoblock Class D Amplifier + 100% Copper, 2-Chan. True Spec 4 Gauge Amp Installation Kit

PDR-M65_XKIT42 big DISCONTINUED
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Alpine PDR-M65 + NVX XKIT42

650W RMS PDR Series Monoblock Class D Amplifier + 100% Copper, 2-Chan. True Spec 4 Gauge Amp Installation Kit

• RMS Power: 450W x 1 @ 4 ohm, 650W x 1 @ 2 ohm
• 1 Pair of Preamp Outputs
• Low Pass Filter
• Dimensions: 9" W x 7-1/8" D x 2-1/16" H
• 4 Gauge 2-Channel X-Series Complete Amplifier Installation Kit

126

• RMS Power: 450W x 1 @ 4 ohm, 650W x 1 @ 2 ohm
• 1 Pair of Preamp Outputs
• Low Pass Filter
• Dimensions: 9" W x 7-1/8" D x 2-1/16" H
• 4 Gauge 2-Channel X-Series Complete Amplifier Installation Kit

Alpine MRD-M1000

MRD-M1000 big DISCONTINUED
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Alpine MRD-M1000

Class D 1000W RMS Power Amplifier • V12 AccuClass-D mono series • Digital equalizer and voltage readout

2

Class D 1000W RMS Power Amplifier • V12 AccuClass-D mono series • Digital equalizer and voltage readout

Alpine PDX-M6

600W RMS PDX Series Monoblock Class-D Digital Car Amplifier

PDX-M6 big DISCONTINUED
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Alpine PDX-M6

600W RMS PDX Series Monoblock Class-D Digital Car Amplifier

• RMS: 600W x 1 @ 4 ohm, 600W x 1 @ 2 ohm
• Total RMS Power: 600W
• CEA-2006 Compliant
• 6-Layer Glass Epoxy PC Board and Compact Size
• Thermal Protection Circuitry
• Dimensions: 7-9/16"D x 10-1/8"W x 2"H

19

• RMS: 600W x 1 @ 4 ohm, 600W x 1 @ 2 ohm
• Total RMS Power: 600W
• CEA-2006 Compliant
• 6-Layer Glass Epoxy PC Board and Compact Size
• Thermal Protection Circuitry
• Dimensions: 7-9/16"D x 10-1/8"W x 2"H

Alpine MRD-M1001 Class D MonoBlock

MRD-M1001 big DISCONTINUED
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Alpine MRD-M1001 Class D MonoBlock

1,000 watts RMS at 2 ohm • Bass Engine® with low-pass filter, subsonic filter, and parametric EQ, • preamp outputs

2

1,000 watts RMS at 2 ohm • Bass Engine® with low-pass filter, subsonic filter, and parametric EQ, • preamp outputs

Alpine Marine PDX-1.600M

600W RMS Marine Series Class D Monoblock Power Density Digital Amplifier

PDX-1.600M big DISCONTINUED
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Alpine Marine PDX-1.600M

600W RMS Marine Series Class D Monoblock Power Density Digital Amplifier

• RMS: 600W x 1 @ 4 ohm, 600W x 1 @ 2 ohm
• Total RMS Power: 600W
• CEA-2006 Compliant
• Marine Certified
• Compact Heavy Duty Aluminum Alloy Heatsink
• Dimensions: 10-1/8"L x 7-9/16"W x 2-7/16"H

1

• RMS: 600W x 1 @ 4 ohm, 600W x 1 @ 2 ohm
• Total RMS Power: 600W
• CEA-2006 Compliant
• Marine Certified
• Compact Heavy Duty Aluminum Alloy Heatsink
• Dimensions: 10-1/8"L x 7-9/16"W x 2-7/16"H

Alpine PDX-M12 + RUX-KNOB2 (Bass Knob Included)

1200W RMS PDX Series Monoblock Power Density Class D Digital Car Amplifier

PDX-M12, RUX-KNOB2 big DISCONTINUED
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Alpine PDX-M12 + RUX-KNOB2 (Bass Knob Included)

1200W RMS PDX Series Monoblock Power Density Class D Digital Car Amplifier

• RMS: 1200W x 1 @ 4 ohm, 1200W x 1 @ 2 ohm
• Total RMS Power: 1200W
• CEA-2006 Compliant
• 6-Layer Glass Epoxy PC Board and Compact Size
• Thermal Protection Circuitry
• Dimensions: 7-9/16"D x 10-1/8"W x 2"H

53

• RMS: 1200W x 1 @ 4 ohm, 1200W x 1 @ 2 ohm
• Total RMS Power: 1200W
• CEA-2006 Compliant
• 6-Layer Glass Epoxy PC Board and Compact Size
• Thermal Protection Circuitry
• Dimensions: 7-9/16"D x 10-1/8"W x 2"H

Alpine S-A60M Amplifier + Hifonics 12" Dual 4-Ohm Subwoofer + Free Amp Kit

(600W RMS) Alpine Monoblock Amplifier + Hifonics HFX12D4 Subwoofer + Belva Bak44

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Alpine S-A60M Amplifier + Hifonics 12" Dual 4-Ohm Subwoofer + Free Amp Kit

(600W RMS) Alpine Monoblock Amplifier + Hifonics HFX12D4 Subwoofer + Belva Bak44

• Alpine S-Series Mono Power Amplifier - S-A60M
• 400W RMS x 1 (4ohm, 14.4V < 1% THD+N)
• 600W RMS x 1 (2ohm, 14.4V < 1% THD+N)
• Remote bass knob compatible

274

• Alpine S-Series Mono Power Amplifier - S-A60M
• 400W RMS x 1 (4ohm, 14.4V < 1% THD+N)
• 600W RMS x 1 (2ohm, 14.4V < 1% THD+N)
• Remote bass knob compatible

Alpine MRP-M650

Class D Monoblock Amplifier

MRP-M650 big DISCONTINUED
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Alpine MRP-M650

Class D Monoblock Amplifier

Class D mono subwoofer car amplifier • 400W RMS x 1 @ 4 ohm • 600W RMS x 1 @ 2 ohm • CEA-2006 compliant • Gold-plated screw terminals

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Class D mono subwoofer car amplifier • 400W RMS x 1 @ 4 ohm • 600W RMS x 1 @ 2 ohm • CEA-2006 compliant • Gold-plated screw terminals

EXCLUSIVE

Alpine PDX-M12 1200W RMS Mono Car Amplifier + 4 Gauge Premium OFC Amp Kit

Class D Digital Car Amplifier + 100% Copper 4 Gauge Amp Installation Kit

PDX-M12_XKIT42 big DISCONTINUED
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Alpine PDX-M12 1200W RMS Mono Car Amplifier + 4 Gauge Premium OFC Amp Kit

Class D Digital Car Amplifier + 100% Copper 4 Gauge Amp Installation Kit

• RMS: 1200W x 1 @ 4 ohm, 1200W x 1 @ 2 ohm
• Total RMS Power: 1200W
• CEA-2006 Compliant
• 6-Layer Glass Epoxy PC Board and Compact Size
• Thermal Protection Circuitry
• Dimensions: 7-9/16"D x 10-1/8"W x 2"H
• 4 Gauge 2-Channel X-Series Complete Amplifier Installation Kit

146

• RMS: 1200W x 1 @ 4 ohm, 1200W x 1 @ 2 ohm
• Total RMS Power: 1200W
• CEA-2006 Compliant
• 6-Layer Glass Epoxy PC Board and Compact Size
• Thermal Protection Circuitry
• Dimensions: 7-9/16"D x 10-1/8"W x 2"H
• 4 Gauge 2-Channel X-Series Complete Amplifier Installation Kit

Alpine MRV-M1200 Mono 1200w RMS 2-Ohm Car Audio Stereo Amplifier+Amp Kit+Remote

2400W Peak (1200W RMS) Class-D Monoblock Amplifier with Remote Bass Knob Included Package

MRV-M1200-4 big DISCONTINUED
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Alpine MRV-M1200 Mono 1200w RMS 2-Ohm Car Audio Stereo Amplifier+Amp Kit+Remote

2400W Peak (1200W RMS) Class-D Monoblock Amplifier with Remote Bass Knob Included Package

• 600 Watts RMS x 1 @ 4 ohm
• 1200 Watts RMS x 1 @ 2 ohm
• Total Peak Power: 2400 Watts
• CEA-2006 Compliant
• 40% smaller footprint than its predecessors
• Heavy duty aluminum alloy heat-sink for extreme heat dissipation
• 13-1/2"W x 2-1/4"L x 8-5/8"H

• 600 Watts RMS x 1 @ 4 ohm
• 1200 Watts RMS x 1 @ 2 ohm
• Total Peak Power: 2400 Watts
• CEA-2006 Compliant
• 40% smaller footprint than its predecessors
• Heavy duty aluminum alloy heat-sink for extreme heat dissipation
• 13-1/2"W x 2-1/4"L x 8-5/8"H

Alpine KTA-200M + Alpine SBR-S8-4 8" Type-R Subwoofer Package

200 watts RMS Class D Monoblock Subwoofer Amplifier + 8" Type-R Subwoofer with Enclosure

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Alpine KTA-200M + Alpine SBR-S8-4 8" Type-R Subwoofer Package

200 watts RMS Class D Monoblock Subwoofer Amplifier + 8" Type-R Subwoofer with Enclosure

• Alpine Power Stack Bass 8" Type-R Subwoofer Package
• Powerstack Capable
• Class D
• CTA-2006 Compliant • Peak Power: 1000 Watts ; RMS Power: 350 Watts
• Impedance: 4 Ohm
• Two-Piece Parabolic Kevlar Pulp Cone
• High Amplitude Multi Roll Surround
• 3/8" Medium-Density Fiberboard Construction

5

• Alpine Power Stack Bass 8" Type-R Subwoofer Package
• Powerstack Capable
• Class D
• CTA-2006 Compliant • Peak Power: 1000 Watts ; RMS Power: 350 Watts
• Impedance: 4 Ohm
• Two-Piece Parabolic Kevlar Pulp Cone
• High Amplitude Multi Roll Surround
• 3/8" Medium-Density Fiberboard Construction

Alpine MRX-M50

500W RMS, Monoblock Class D X-Power Series Car Amplifier

MRX-M50 big DISCONTINUED
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Alpine MRX-M50

500W RMS, Monoblock Class D X-Power Series Car Amplifier

MRX Series Monoblock Car Amplifier • 300W RMS @ 4 Ohm x 1 Chan. • 500W RMS @ 2 Ohm x 1 Chan. • 300W RMS @ 1 Ohm x 1 Chan. • Variable Low-Pass Crossover • Variable Subsonic Crossover • Variable Bass Boost

1

MRX Series Monoblock Car Amplifier • 300W RMS @ 4 Ohm x 1 Chan. • 500W RMS @ 2 Ohm x 1 Chan. • 300W RMS @ 1 Ohm x 1 Chan. • Variable Low-Pass Crossover • Variable Subsonic Crossover • Variable Bass Boost

12" Alpine Type-R + Boss Monoblock Amplifier

List price $459.94: Alpine SWR-12D4 12" Type-R Series Dual 4-ohm Subwoofer + Boss PM2500 Monoblock Phantom Series Class AB Amplifier

SWR-12D4_PM2500 big DISCONTINUED
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12" Alpine Type-R + Boss Monoblock Amplifier

List price $459.94: Alpine SWR-12D4 12" Type-R Series Dual 4-ohm Subwoofer + Boss PM2500 Monoblock Phantom Series Class AB Amplifier

• Wired remote bass level control included
• Reinforced parabolic cone structure
• Durable High Amplitude Multi-Roll santoprene surround
• Cast aluminum frame with integral shorting sleeve
• High-grade strontium ferrite segmented magnet assembly
• Integrated 8 AWG push terminals with VC jumpers
• Gold-plated RCA low level and high level inputs
• 3-way protection circuitry (thermal, overload, and speaker short protection)
• Wired remote bass level control included
• 10.31" W x 14.00" L x 2.25" H

• Wired remote bass level control included
• Reinforced parabolic cone structure
• Durable High Amplitude Multi-Roll santoprene surround
• Cast aluminum frame with integral shorting sleeve
• High-grade strontium ferrite segmented magnet assembly
• Integrated 8 AWG push terminals with VC jumpers
• Gold-plated RCA low level and high level inputs
• 3-way protection circuitry (thermal, overload, and speaker short protection)
• Wired remote bass level control included
• 10.31" W x 14.00" L x 2.25" H

2 Kicker CompR 12" 43CWR124 Subwoofers + Alpine PDX-M12 1200W RMS Amplifier

2400 Watt Max/1200 Watt RMS Car Audio Bass Package

No picture DISCONTINUED
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2 Kicker CompR 12" 43CWR124 Subwoofers + Alpine PDX-M12 1200W RMS Amplifier

2400 Watt Max/1200 Watt RMS Car Audio Bass Package

• RMS: 1200W x 1 @ 4 ohm, 1200W x 1 @ 2 ohm
• Total RMS Power: 1200W
• CEA-2006 Compliant
• 6-Layer Glass Epoxy PC Board and Compact Size
• Thermal Protection Circuitry
• Dimensions: 7-9/16"D x 10-1/8"W x 2"H

• RMS: 1200W x 1 @ 4 ohm, 1200W x 1 @ 2 ohm
• Total RMS Power: 1200W
• CEA-2006 Compliant
• 6-Layer Glass Epoxy PC Board and Compact Size
• Thermal Protection Circuitry
• Dimensions: 7-9/16"D x 10-1/8"W x 2"H

Alpine PDX-1.600

600 watts, Class D Monoblock Power Density Digital Amplifier (PDX1.600)

PDX-1.600 big DISCONTINUED
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Alpine PDX-1.600

600 watts, Class D Monoblock Power Density Digital Amplifier (PDX1.600)

Class D Monoblock Power Density Digital Amplifier • 600 watts RMS x 1 at 2/4 ohm • CEA-2006 compliant • MOSFET power and output stages • Frequency Response: 20 Hz - 200 Hz

5

Class D Monoblock Power Density Digital Amplifier • 600 watts RMS x 1 at 2/4 ohm • CEA-2006 compliant • MOSFET power and output stages • Frequency Response: 20 Hz - 200 Hz

Alpine MRP-M850

800 watts, Class D MonoBlock Amplifier

MRP-M850 big DISCONTINUED
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Alpine MRP-M850

800 watts, Class D MonoBlock Amplifier

800 watts, Class D MonoBlock Amplifier • RMS Power Output: 4 ohm: 500 watts x 1 / 2 ohm: 800 watts x 1 • Frequency Response: 20 Hz - 200 Hz • MOSFET power supply • STAR Topology (minimizes internal noise and prevents ground interference) • Speaker and preamp-level inputs

5

800 watts, Class D MonoBlock Amplifier • RMS Power Output: 4 ohm: 500 watts x 1 / 2 ohm: 800 watts x 1 • Frequency Response: 20 Hz - 200 Hz • MOSFET power supply • STAR Topology (minimizes internal noise and prevents ground interference) • Speaker and preamp-level inputs

EXCLUSIVE

Alpine + NVX 450 Watt RMS Bass Bundle

(2) Alpine SWS-10D2 Type-S 10" Subwoofer + NVX BDA7501 Monoblock Class D Amplifier + 100% OFC Amp Wiring Kit

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Alpine + NVX 450 Watt RMS Bass Bundle

(2) Alpine SWS-10D2 Type-S 10" Subwoofer + NVX BDA7501 Monoblock Class D Amplifier + 100% OFC Amp Wiring Kit

• 450W x 1 @ 4 ohm
• Dual 2-Ohm Voice Coil
• Kevlar Treated Pulp Cone
• Durable HAMR Santoprene™ Surround
• CEA-2006 Compliant
• Dimensions: 7" W x 9.75" L x 2" H
• Silver-Tinned 100% Virgin Copper
• 2-channel RCA Interconnect Cable

• 450W x 1 @ 4 ohm
• Dual 2-Ohm Voice Coil
• Kevlar Treated Pulp Cone
• Durable HAMR Santoprene™ Surround
• CEA-2006 Compliant
• Dimensions: 7" W x 9.75" L x 2" H
• Silver-Tinned 100% Virgin Copper
• 2-channel RCA Interconnect Cable

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    Alpine Monoblock Amplifiers Information

    The Alpine monoblock amplifiers are designed for efficient power ouput. These amps take up little space and feature high quality platinum finished connections, and solid power ratings. You won't be disappointed with your Alpine monoblock amplifier for your vehicle's needs.
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