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  1. Home
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  3. Discontinued Alpine Car Audio & Electronics
  4. Discontinued Alpine Car Amplifiers
  5. Discontinued Alpine Class-D Amplifiers

Discontinued Alpine Class-D Amplifiers

Alpine's Class-D amplifiers combine efficiency with powerful, clear audio output.

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Amplifiers,
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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 MRV-M250 Amplifier + Free Amp Kit

250W Mono Block V-Power Class D Subwoofer Car Amplifier

MRV-M250, BAK82 big DISCONTINUED
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Alpine MRV-M250 Amplifier + Free Amp Kit

250W Mono Block V-Power Class D Subwoofer Car Amplifier

• RMS Power: 150W x 1 @ 4 ohm, 250W x 1 @ 2 ohm
• Total Peak Power: 250W
• CEA-2006 Compliant
• Dimensions: 7-1/2" W x 7-7/8" L x 2-3/16"H

100

• RMS Power: 150W x 1 @ 4 ohm, 250W x 1 @ 2 ohm
• Total Peak Power: 250W
• CEA-2006 Compliant
• Dimensions: 7-1/2" W x 7-7/8" L x 2-3/16"H

Alpine KTA-30FW

600W Peak (300W RMS) Class D Power Pack Series 4 Channel Marine and Powersports Amplifier

KTA-30FW big DISCONTINUED
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Alpine KTA-30FW

600W Peak (300W RMS) Class D Power Pack Series 4 Channel Marine and Powersports Amplifier

• 75 watts x 4 channel @ 4 ohm
• 75 watts x 4 channel @ 2 ohm
• Bridged: 150 watts x 2 channel @ 4 ohm
• Total RMS Power: 300 watts
• Class D 2 ohm Stable 4-Channel Amplifier

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• 75 watts x 4 channel @ 4 ohm
• 75 watts x 4 channel @ 2 ohm
• Bridged: 150 watts x 2 channel @ 4 ohm
• Total RMS Power: 300 watts
• Class D 2 ohm Stable 4-Channel Amplifier

Alpine MRV-M1200

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

MRV-M1200 big DISCONTINUED
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Alpine MRV-M1200

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

• 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

4

• 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 MRP-M350

Class D Monoblock Amplifier

MRP-M350 big DISCONTINUED
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Alpine MRP-M350

Class D Monoblock Amplifier

MonoBlock Subwoofer Amplifier • 350 watts RMS x 1 @ 2 ohm • MOSFET power supply

6

MonoBlock Subwoofer Amplifier • 350 watts RMS x 1 @ 2 ohm • MOSFET power supply

Alpine PDX-M12

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

PDX-M12 big DISCONTINUED
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Alpine PDX-M12

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

21

• 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 MRV-M250

250W Mono Block V-Power Class D Subwoofer Car Amplifier

MRV-M250 big DISCONTINUED
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Alpine MRV-M250

250W Mono Block V-Power Class D Subwoofer Car Amplifier

• RMS Power: 150W x 1 @ 4 ohm, 250W x 1 @ 2 ohm
• Total Peak Power: 250W
• CEA-2006 Compliant
• Dimensions: 7-1/2" W x 7-7/8" L x 2-3/16"H

3

• RMS Power: 150W x 1 @ 4 ohm, 250W x 1 @ 2 ohm
• Total Peak Power: 250W
• CEA-2006 Compliant
• Dimensions: 7-1/2" W x 7-7/8" L x 2-3/16"H

Alpine MRP-M500

500W RMS Class D Monoblock Amplifier

MRP-M500 big DISCONTINUED
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Alpine MRP-M500

500W RMS Class D Monoblock Amplifier

bull; 300W x 1 chan. @ 4 ohm
• 500W x 1 chan. @ 2 ohm
• 1000W x 1 chan. Max approx.
• MOSFET Power supply
• Bass EQ 0-12dB at 50Hz
• Continuously adjustable gain control
• Thermal management control

76

bull; 300W x 1 chan. @ 4 ohm
• 500W x 1 chan. @ 2 ohm
• 1000W x 1 chan. Max approx.
• MOSFET Power supply
• Bass EQ 0-12dB at 50Hz
• Continuously adjustable gain control
• Thermal management control

Alpine MRP-M450

Class D Monoblock Amplifier

MRP-M450 big DISCONTINUED
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Alpine MRP-M450

Class D Monoblock Amplifier

400 watts RMS mono subwoofer car amplifier • CEA-2006 compliant • 220W RMS x 1 @ 4 ohm • 400W RMS x 1 @ 2 ohm • STAR Topology • gold-plated screw terminals

22

400 watts RMS mono subwoofer car amplifier • CEA-2006 compliant • 220W RMS x 1 @ 4 ohm • 400W RMS x 1 @ 2 ohm • STAR Topology • gold-plated screw terminals

Alpine PDX-F6 Open Box, Accepatble Condition (Used)

600W PDX Series 4-Channel Power Density Digital Class D Car Amplifier(Open Box Complete Used Functional)

PDX-F6 big DISCONTINUED
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Alpine PDX-F6 Open Box, Accepatble Condition (Used)

600W PDX Series 4-Channel Power Density Digital Class D Car Amplifier(Open Box Complete Used Functional)

• Item Condition: Open Box
• RMS Power: 150W x 4-Chan. @ 4 ohm
• 600 Watts RMS
• Class D
• Variable High-Pass and Low-Pass Filter
• Blue LED Power/Status Indicator
• Compact Size

• Item Condition: Open Box
• RMS Power: 150W x 4-Chan. @ 4 ohm
• 600 Watts RMS
• Class D
• Variable High-Pass and Low-Pass Filter
• Blue LED Power/Status Indicator
• Compact Size

Alpine MRP-M1000

1000W RMS, Class D Monoblock Amplifier

MRP-M1000 big DISCONTINUED
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Alpine MRP-M1000

1000W RMS, Class D Monoblock Amplifier

V-Power Series Class D Monoblock Car Amplifier • 600W x 1 chan. @ 4 ohm • 1000W x 1 chan. @ 2 ohm • 2000W x 1 chan. Max approx. • MOSFET Power supply • Bass EQ 0-12dB at 50Hz • Continuously adjustable gain control • Thermal management control

28

V-Power Series Class D Monoblock Car Amplifier • 600W x 1 chan. @ 4 ohm • 1000W x 1 chan. @ 2 ohm • 2000W x 1 chan. Max approx. • MOSFET Power supply • Bass EQ 0-12dB at 50Hz • Continuously adjustable gain control • Thermal management control

Alpine PDR-M65

650W RMS PDR Series Monoblock Class D Amplifier

PDR-M65 big DISCONTINUED
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Alpine PDR-M65

650W RMS PDR Series Monoblock Class D Amplifier

• 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

1

• 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

Alpine MRX-M110

1100W RMS Monoblock Class D X-Power Series Car Amplifier

MRX-M110 big DISCONTINUED
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Alpine MRX-M110

1100W RMS Monoblock Class D X-Power Series Car Amplifier

• RMS: 650W x 1 @ 4 ohm, 1100W x 1 @ 2 ohm
• Total RMS Power: 1100W
• CEA-2006 Compliant
• Bass Boost: 0-12 dB at 50 Hz
• Multi-Stage Power Management Circuit
• Dimensions: 9"L x 13-3/8"W x 2-1/4"H

9

• RMS: 650W x 1 @ 4 ohm, 1100W x 1 @ 2 ohm
• Total RMS Power: 1100W
• CEA-2006 Compliant
• Bass Boost: 0-12 dB at 50 Hz
• Multi-Stage Power Management Circuit
• Dimensions: 9"L x 13-3/8"W x 2-1/4"H

Alpine MRD-M605 ** LIMITED TIME PRICE **

600 watts, V12 Series Class D Monoblock Amplifier

MRD-M605 big DISCONTINUED
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Alpine MRD-M605 ** LIMITED TIME PRICE **

600 watts, V12 Series Class D Monoblock Amplifier

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

4

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

Alpine MRD-M500 MonoBlock V12 Class D Series

MRD-M500 big DISCONTINUED
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Alpine MRD-M500 MonoBlock V12 Class D Series

500W RMS at 2 ohm • 250W RMS x 1 Car Amplifier at 4 ohm • Bass Engine with low-pass filter, subsonic filter, parametric EQ, and Bass Compensator • preamp outputs

1

500W RMS at 2 ohm • 250W RMS x 1 Car Amplifier at 4 ohm • Bass Engine with low-pass filter, subsonic filter, parametric EQ, and Bass Compensator • preamp outputs

*LAST CALL!* Alpine MRD-M1005

Class D Monoblock Amplifier

MRD-M1005 big DISCONTINUED
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*LAST CALL!* Alpine MRD-M1005

Class D Monoblock Amplifier

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

7

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

Alpine PDX-1.1000

1000 watts, Class D Monoblock Power Density Digital Amplifier (PDX1.1000)

PDX-1.1000 big DISCONTINUED
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Alpine PDX-1.1000

1000 watts, Class D Monoblock Power Density Digital Amplifier (PDX1.1000)

Class D Monoblock Power Density Digital Amplifier � 1000W x 1 chan. @ 4/2 Ohm � stackable installation design � MOSFET power supply � adjustable gain control � RCA inputs � CEA-2006 compliant � speaker connectors

20

Class D Monoblock Power Density Digital Amplifier � 1000W x 1 chan. @ 4/2 Ohm � stackable installation design � MOSFET power supply � adjustable gain control � RCA inputs � CEA-2006 compliant � speaker connectors

Alpine MRD-M301 Class D MonoBlock

MRD-M301 big DISCONTINUED
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Alpine MRD-M301 Class D MonoBlock

350 watts RMS at 2 ohm • Class D • Bass Engine® with low-pass filter, subsonic filter, and parametric EQ

2

350 watts RMS at 2 ohm • Class D • Bass Engine® with low-pass filter, subsonic filter, and parametric EQ

Alpine MRD-M501 V12 AccuClass-D

MRD-M501 big DISCONTINUED
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Alpine MRD-M501 V12 AccuClass-D

lpine MRD-M501 V12 AccuClass-D mono power amplifier • 275 watts RMS x 1 at 4 ohm • 550 watts RMS x 1 at 2 ohm • 2-ohm stable • MOSFET power supply and output stages • Preamp outputs • Turn-on delay

1

lpine MRD-M501 V12 AccuClass-D mono power amplifier • 275 watts RMS x 1 at 4 ohm • 550 watts RMS x 1 at 2 ohm • 2-ohm stable • MOSFET power supply and output stages • Preamp outputs • Turn-on delay

Alpine MRV-F300 OPEN BOX COMPLETE

300W 4-Channel Class D V-Power Series Compact Car Amplifier

MRV-F300 big DISCONTINUED
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Alpine MRV-F300 OPEN BOX COMPLETE

300W 4-Channel Class D V-Power Series Compact Car Amplifier

Opened and Never Installed
• RMS Power: 50W x 4-Chan. @ 4 ohm, 75W x 4-Chan. @ 2 ohm
• 3-Way System Protection
• 4/3/2/1 Channel Operation
• 8 Gauge Power and Ground Inputs
• Same Power in a 40% Smaller Chassis

Opened and Never Installed
• RMS Power: 50W x 4-Chan. @ 4 ohm, 75W x 4-Chan. @ 2 ohm
• 3-Way System Protection
• 4/3/2/1 Channel Operation
• 8 Gauge Power and Ground Inputs
• Same Power in a 40% Smaller Chassis

Alpine PDX-F4

400W PDX Series 4-Channel Power Density Digital Class D Car Amplifier

PDX-F4 big DISCONTINUED
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Alpine PDX-F4

400W PDX Series 4-Channel Power Density Digital Class D Car Amplifier

• RMS Power: 100W x 4-Chan. @ 4 ohm
• 400 Watts RMS
• Class D
• Variable High-Pass and Low-Pass Filter
• Blue LED Power/Status Indicator
• Compact Size

19

• RMS Power: 100W x 4-Chan. @ 4 ohm
• 400 Watts RMS
• Class D
• Variable High-Pass and Low-Pass Filter
• Blue LED Power/Status Indicator
• Compact Size

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    Alpine Class-D Amplifiers Information

    Alpine Class-D amplifiers includes efficient, Class-D circuitry. This circuit makes the most out of the limited power available from your car’s electrical system keeping your amp cool. Check out the amazing audio signal and power of the Alpine Class-D amplifiers.
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