MRP-M500 - Alpine Monoblock 500 Watt RMS Power Amplifier

Alpine MRP-M500 Class D Monoblock Amplifier (MRPM500) Review

If your looking for great value and great sound, get this MRP-M500 - Alpine Monoblock 500 Watt RMS Power Amplifier. The Class-D circuitry makes the MRP-M500 amp very efficient so that it will work well in most vehicles electrical systems.

Alpine M500 mono amp is a nice series of mid-grade amplifiers. They are not a high end, but they price is isn't "high end" either. They are efficient and work well with vehicles that don't exactly have a lot of extra amps available for powering amplifiers.

Product Features

• Mono subwoofer car amplifier
• 300 watts RMS x 1 at 4 ohms (500 watts RMS x 1 at 2 ohms)
• Class D amp with MOSFET power supply
• 10-11/16"W x 2-7/16"H x 9-9/16"D
• V-Power Series Class D Monoblock Car Amplifier
• RMS Power Rating:
  • 4 ohms: 300 watts x 1 chan.
  • 2 ohms: 500 watts x 1 chan.
• Max power output: 1000 watts x 1 chan. approx.
• Pulse width modulated (PWM) MOSFET Power supply
• Blue LED power indicators
• Tuned Bass EQ (0-12 dB bass boost at 50 Hz)
• STAR Board circuitry (minimizes internal noise and prevents ground interference)
• Continuously adjustable gain control
• Speaker level inputs and flush mount controls make installation a breeze
• Dual sided glass epoxy PC Board
• Thermal management control
• Heat sinks along with the thermal processor monitor the amplifiers temperature
• Gold-plated RCA level inputs
• Gold-plated screw terminals
• Adjustable low-pass filter (50-200Hz, 24 dB/octave)
• Subsonic Filter (24 dB at 15 Hz)
• CEA-2006 compliant amplifier
• Frequency response: 20-200 Hz
• 1-year warranty

The MRPM500 is powering a 12-inch subwoofer in a small, sealed box. That's not exactly a formula for maximum bass impact, but the M500 does a great job pushing car subwoofers to its fullest potential. The Class-D circuitry makes the MRP-M500 - Alpine Monoblock amp very efficient so that it will work well in most vehicles electrical systems.

The only downside we've found on this Alpine car audio product is that the EQ functions are rather limited. You get controls for center frequency, crossover point, and bass boost. It makes it a little more difficult to get a smooth sound between this Alpine MRP-M500 and your four-channel amp. It just takes longer than if there were more EQ controls. Also, the bass boost puts a definite peak in its frequency output so that the amplitude drops off above and below the center frequency. That means that if you want to get the maximum power output, your range is going to be somewhat limited.

MRP-M500 Alpine Monoblock Amplifier Specifications

Amplifier Type	Class-D (Digital)
Channel Design	1 Channel (Mono)
Thermal Control	Thermal Management Control
Power Supply	DC-DC PWM Power Supply
Power Supply Design	MOSFET Power
Board Circuitry	STAR Circuitry
Current Protection	Over-Current, Over-Voltage and Thermal Protection
Power Indicator	Top Mounted Blue LED Power Indicator
RCA Output	Gold Plated RCA Input Connectors
Speaker-Level Inputs	Speaker Level Inputs
Crossover	Adjustable Low-Pass
Connector Plating	Gold Plated Input, Output, Power and Speaker Terminals
Board Design	Dual Sided Glass Epoxy PC Board
Gain Control	Continuously Adjustable Gain Control

The Alpine M500 amp is a wonderful little amp for subs. The MRPM500 amp puts out good power and is very stable. If your looking for great value and great sound, get this MRP-M500 - Alpine MRP-M500 Class D Monoblock Amplifier (MRPM500). It is a wonderful starter amp that will perform beautifully.