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Alpine MRV-M1200

Mono subwoofer amplifier — 1,200 watts RMS x 1 at 2 ohms

Item # 500MRVM120

Alpine makes it a little easier to get great bass in your vehicle.

Find what Fits your car

Alpine makes it a little easier to get great bass in your vehicle.

Discontinued item
7 questions - 9 answers

Item # 500MRVM120

About the Alpine MRV-M1200

Compact powerhouse

Alpine makes it a little easier to get great bass in your vehicle. Their V-Power Series MRV-M1200 mono subwoofer amplifier can send up to 1,200 watts RMS to a sub, guaranteeing some truly powerful performance on your drive.

Compact powerhouse

Alpine makes it a little easier to get great bass in your vehicle. Their V-Power Series MRV-M1200 mono subwoofer amplifier can send up to 1,200 watts RMS to a sub, guaranteeing some truly powerful performance on your drive.

Convenient features

A low-pass filter puts you in command of the frequencies directed to your sub, while a bass boost lets you apply plenty of low-end punch. The amp includes preamp- and speaker-level inputs, so you can install it in almost any vehicle, even one with a factory radio. If you're using the speaker-level inputs, the amp senses an incoming signal and turns itself on, eliminating the need to run a turn-on wire run back to your vehicle's receiver or fusebox.

If you're a tweaker, you'll appreciate the end-piece terminal covers that can be snapped in and out without the need for any tools. And you can control the volume of your MRV-M1200 from the front seat with the included RUX-KNOB wired remote controller.

Thermal protection without annoying shut-downs

The MRV-M1200 uses a thermal management processor to roll back the output a bit when the amp threatens to overheat from playing at its limits too long. Instead of shutting down completely, it continues playing your music, until it cools enough to return to full power.

Confused about impedance? Check out our article on matching subs and amps.


Product highlights:

  • mono subwoofer car amplifier
  • 600 watts RMS x 1 at 4 ohms (1200 watts RMS x 1 at 2 ohms)
  • CEA-2006 compliant
  • Class D amp technology
  • variable low-pass filter (50-400 Hz, 24 dB/octave)
  • variable bass boost (0-12 dB at 50 Hz)
Other Features:
  • preamp and speaker-level inputs
  • preamp outputs
  • Remote Sensing automatic turn-on when using speaker-level inputs
  • RUX-KNOB wired remote level control included
  • fuse rating: 25A x 4
  • 4-gauge power and ground leads recommended — wiring and hardware not included with amplifier
  • 13-3/16"W x 2-3/16"H x 8-5/8"D
  • warranty: 1 year
  • Our 60-day money-back guarantee
  • MFR # MRV-M1200

What's in the box:

  • Mono bloc amplifier
  • Four 25A ATO fuses (installed)
  • 8.5" Speaker-level input harness
  • 2 Snap-on terminal covers
  • Four 3/4" self-tapping screws
  • 2.5mm Allen wrench
  • RUX-KNOB remote bass level control
  • 16' Connection cable (with a RJ-25 connector on each end)
  • 4 Mounting screws (for RUX-KNOB)
  • Owner's Manual
  • Important Tip
  • Verification Certificate
  • Limited Warranty
  • Thank you letter

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More details on the Alpine MRV-M1200

Mark G.

Product Research


CEA-2006 Compliant: CEA-2006 is a system of testing and measurement methods for mobile audio amplifiers. This voluntary standard advocates a uniform method for measuring an amplifier's RMS power output and signal-to-noise ratio. The criteria for measuring power uses a DC input voltage of 14.4 volts and the RMS power output is measured with 1% or less Total Harmonic Distortion plus noise (THD+N) over a frequency range of 20 Hz to 20 kHz (for full range amplifiers). Signal-to-Noise ratio is measured in weighted absolute decibels (dBA) at a reference of 1 watt into 4Ω. CEA-2006 allows consumers to compare car amplifiers and receivers on an equal basis. Using CEA-2006 criteria, the Alpine MRV-M1200 is rated as follows:

  • Power Output:
    • 4Ω: 600 watts x 1-channel (<1% THD+N)
    • 2Ω: 1200 watts x 1-channel (<1% THD+N)
  • Signal to Noise Ratio: 85 dBA (105 dB at rated power)

Speaker Level Input: A speaker level input harness is included, making it easier to add the amplifier to a factory radio or to a receiver with no preamp outputs. The 8-pin harness has inputs for front and rear speakers. While only two speaker inputs are necessary, wiring all four will minimize the fader's effect on the subwoofer output.

Auto Turn-on: If using the speaker level input, an automatic circuit turns the amplifier on when it senses an input signal.

Low Pass Filter: The amp is equipped with a 50-400Hz variable low-pass filter with a slope of 24 dB/octave. Because this is a mono subwoofer amp, the crossover is always engaged.

Bass EQ: The Bass EQ circuit provides a variable boost (0 to +12dB) at 50 Hz.

Wired Remote: An RJ-25 jack is provided for connecting the supplied RUX-KNOB remote bass level control. The RUX-KNOB comes with a 5-meter (16') connection cable, and hardware for mounting the remote module.


  • Battery: set screw terminal; accepts up to 4 gauge wire. A fuse holder with a 100A fuse, or a 100A circuit breaker should be installed 18" or less from the positive battery terminal.
  • Remote: set screw terminal; accepts up to 8 gauge wire
  • GND (ground): set screw terminal; accepts up to 4 gauge wire
  • Speaker Output: set screw terminals; accept up to 8 gauge wire
  • Line Inputs: 1 pair of stereo RCA jacks
  • Line Output: left and right channel RCA output jacks to daisy-chain another amplifier without having to run an additional set of cables; the output is not affected by the MRV-M1200's internal crossover (Output is rated at 4.0V Max)
  • Speaker Level Input: Molex plug input for supplied 8-pin harness
  • Wired Remote: RJ-25 jack for RUX-KNOB wired remote
Note: Alpine recommends 4 gauge power and ground wire (minimum).

Other Specifications:

  • Power Requirements: 14.4 V DC (11-16V allowable)
  • Input Impedance: >10k ohms
  • THD+N (10W into 4 ohms): ≤ 0.02%
  • THD+N (10W into 2 ohms): ≤ 0.03%
  • THD+N (Rated power into 4 ohms): ≤ 0.2%
  • THD+N (Rated power into 2 ohms): ≤ 0.3%
  • Remote Level: -20 to 0dB

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Customer Q&A

7 questions already asked

Do i have to connect all the Speaker Level Inputs if im only connecting two subs to Alpine MRV-M1200 or just the positive and negative from my current sub? It shows in the manual to connect all wires but i only need the two. Note: I don't have RCA inputs.
[ Craig  May 29, 2018 ]
3 answers
The head unit has to be wired to the amp but other than that you can run just the subs and bypass the rest of the speakers. I have the same setup (this amp running two subs) and it works like a charm.
[ Davis  May 29, 2018 ]
I can't speak to the manufacturing design of the amp, but generally the problem with only using the single input is that the amp will only receive half the signal it's expecting so your output may be much lower than desired. It shouldn't hurt the amp any to try it, but you may have to get aggressive with the gain settings on the amp.
[ AARON  May 29, 2018 ]
Are you running an aftermarket stereo?
[ MICHELLE R  May 29, 2018 ]
Hello would this be a decent amp for a single 15' Apline Type R .2 ohm? The RMS wattage is 750 and peak of 2000W
[ Damian  Apr 07, 2018 ]
1 answer
Thanks for your question. For information on selecting the best amp for your subs I would recommend reaching out to an Advisor by phone (1-800-324-9695) or online chat. They will be able to help determine the differences between the amp models and help you make the best choice for your system.
[ Krissy  Apr 27, 2018 ]  Staff
Would it be 1.8 ohm standing stable? My subs reading 1.8 2 dvc 2 ohm subs and want all of the power. In case anyone wants to know it's wired series up to 4ohm and parriled down to 2ohm.
[ John  Jul 04, 2017 ]
1 answer
The owner's manual for the Alpine MRV-M1200 states that the minimum impedance supported is 2-ohm. If your subs are presenting a 1.8-ohm load you may want to consider an amp model with a minimum impedance down to 1-ohm instead. For more details or to discuss further, please feel free to contact an Advisor directly by phone (888.955.6000) or online chat. Hope that helps!
[ Larry  Jul 09, 2017 ]  Staff
What gauge wire should I use I will be bridging 2 swrt12s to 2 ohms and running a 1200w rms?
[ Brian  Jun 30, 2017 ]
1 answer
We recommend using 4 gauge power & ground leads for this amp. The speaker output terminals will accept up to 8 gauge speaker wire. I hope that helps. My Bio:
[ Ryan  Jul 07, 2017 ]  Staff
Comes with built in RCA?
[ Robsproguitar  Sep 21, 2016 ]
1 answer
Thanks for your question. Yes there is 1 channel RCA input and preout. Hope that helps.
[ Kenny  Sep 23, 2016 ]  Staff

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