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Our take on the Alpine MRV-M500

Alpine makes it a little easier to get great bass in your vehicle, especially if you drive a compact car. Their V-Power Series MRV-M500 mono subwoofer amplifier sends up to 500 watts RMS to your sub, guaranteeing some powerful bass on your drive. And Alpine made this amp so small — it's got less than an 8" by 8" footprint and it's just over 2" tall — it can fit almost anywhere.

Alpine Authorized Online Dealer

Compact powerhouse

Alpine makes it a little easier to get great bass in your vehicle, especially if you drive a compact car. Their V-Power Series MRV-M500 mono subwoofer amplifier sends up to 500 watts RMS to your sub, guaranteeing some powerful bass on your drive. And Alpine made this amp so small — it's got less than an 8" by 8" footprint and it's just over 2" tall — it can fit almost anywhere.

Thermal protection without annoying shut-downs

The MRV-M500 uses a technology called Enhanced Shutdown Performance, which rolls 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.

Convenient features

A low-pass filter puts you in command of the frequencies that reach 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. You can control the volume of your MRV-M500 from the front seat with the optional RUX-KNOB remote bass controller.

Putting together a bass system with this amp? Check out this Crutchfield-approved amp/sub package.

Alpine MRV-M500

MRV-M500 input and control panel

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

This is a clean sounding amp. I had 2 subs hooked up before with a different amp that sounded as good as this with 1 sub. Easy to install too

mr_toe_knee, Mountain View , CA

Featured Video:

What's in the Box:

  • Mono subwoofer amplifier
  • Two 30 amp ATO fuses (installed)
  • 7.5" Speaker-level input harness
  • 2 Snap on terminal covers
  • Four 3/4" Self-tapping hex-head screws
  • Owner's manual (English/ French/ Spanish)
  • Alpine Verification Certificate
  • Warranty information
  • On-line product registration information

Product Highlights:

  • mono subwoofer car amplifier
  • 300 watts RMS x 1 at 4 ohms (500 watts RMS x 1 at 2 ohms)
  • CEA-2006 compliant
  • variable low-pass filter (50-400 Hz, 24 dB/octave)
  • variable bass boost (0-12 dB at 50 Hz)
  • Class D amp with MOSFET power supply
  • preamp and speaker-level inputs
  • preamp outputs
  • Remote Sensing automatic turn-on when using speaker-level inputs
  • optional RUX-KNOB wired remote level control
  • gold-plated screw terminals
  • fuse rating: 30A x 2
  • 4-gauge power and ground leads recommended — wiring and hardware not included with amplifier
  • 8-1/4"W x 2-3/16"H x 7-15/16"D
  • warranty: 1 year
  • Our 60-day money-back guarantee

Alpine MRV-M500

Average Customer Review(s):

(60 Reviews)

Awesome, and loving it

mr_toe_knee from Mountain View , CA on 9/21/2016

Crutchfield Customer Review (What's this?)

This is a clean sounding amp. I had 2 subs hooked up before with a different amp that sounded as good as this with 1 sub. Easy to install too

Pros: Power, price, compact



Matt from Lehigh Acres, FL on 9/4/2016

Crutchfield Customer Review (What's this?)

This amp pushes 500 rms and does it without breaking a sweat. So many great features and so small and powerful

Pros: Great power Doesn't cut off Easy install

Cons: None at all

Wow. It packs a heck of a punch

Edmond from Detroit, MI on 8/8/2016

I have this amp hooked to a 2X10 JL Audio box in my large SUV. Wow. The bass is fast, deep and tight. It never seems to run out of power, too. Absolutely love it and would buy again. In general, I really like Alpine amplifiers. Started buying them in the late 80s.

Pros: Power to spare and high sound quality

Cons: None

Amp from Heaven

Tim from Georgetown, TX on 7/24/2016

Crutchfield Customer Review (What's this?)

This amp does not disappoint. Plenty of power to spare.

Pros: Small footprint, easy setup, tons of power.

Cons: Can get a tad warm- but all amps experience this dilemma.

works great

James from Cary, NC on 7/14/2016

Crutchfield Customer Review (What's this?)

Easy to install, puts out 521 W, and doesnt overheat



Compact with mad power

Katy from Nevada on 7/14/2016

Crutchfield Customer Review (What's this?)

I've always had my equipment installed by a professional. I've never picked an amp myself; I've picked the subs and the associate paired the correct size amp. So it's more than fair to say I had no clue what I was doing with this amp. It was suggested by my product advisor, a Crutchfield employee and my personal lifesaver. He assured me that this amp would be simple to install with the correct install kit. He was right! The hardest part was finding the correct place to feed the power wire through to get into the interior of the car but an online video search and help from Crutchfield tech support quickly solved that. The amp powers my subs with the charisma of a player. Barely even breaks a sweat.

Pros: Small, fits almost everywhere. Clearly labeled connections

Cons: Directions in box lacking.

Alpine MRV-M500

Anonymous from Troy, NY on 6/29/2016

Crutchfield Customer Review (What's this?)

I'm in love! It feels so amazing to finally have the boom back!! Now I get to listen to music the way it should be listened to ??

Pros: Everything!! Duh

Cons: Nothing at all!


Thomas from Buena Vista on 4/7/2016

It works great with my 10 inch Rockford sub more power than I need

Pros: It fits great on the back of my box, plus the blue illumination is pretty cool at night

Cons: None

Alpine MRV-M500

Jaimie from Georgia on 3/27/2016

Crutchfield Customer Review (What's this?)

Works good, great amp so far

Pros: Nice and small, packs the punch I need


perfect power

Ryan from koloa, HI on 3/9/2016

Crutchfield Customer Review (What's this?)

I researched every subwoofer amplifier Crutchfield carries. I read all the reviews. For a sub amp, class D is the only way to go since anything else might overheat and turn off automatically. What really caught my attention was the THD of .2% on this. It is the lowest of every amplifier Crutchfield sells (within a reasonable price). It comes with an Actual Test Measurement (mine was 514 Watts) so you know that each one has been tested. After installation (paired with a couple of JBL S2-1024 subwoofers), the power is perfect, clear, and loud. It was so loud that I had to lower the level on the amp quite a bit so the subwoofers wouldn't completely overpower the other speakers. I had read that some people said it would get hot. I was worried that it would overheat with the hot temperatures all year long here in Hawaii. What I did was purchase 4 rubber risers/footings from the hardware store and mounted those under the amp. That way there is no rattling and room for the air to flow both over and under it. So far no problems. I also love the screw-in connections. You don't have to do any crimping with this unit.

Pros: clean, clear sound, screw-in connections.

Cons: make sure the air flows around it to keep it cool

Alpine Quality

Brian C from st petersburg, FL on 2/27/2016

Crutchfield Customer Review (What's this?)

I already installed the MRV-F300 and new speakers in my '15 Corolla and decided to beef up the sound more with the MRV-M500 and subwoofer. The combination created fantastic overall sound. Don't go cheap on your sure to match quality with quality.

Pros: Looks good....sounds good.....Alpine Quality.

Cons: none

Alpine amp

Chuck from Colorado on 1/17/2016

Crutchfield Customer Review (What's this?)

Great amp, ez install, lots of power.

Pros: Looks, ease of install.


A compact powerhouse

Anonymous from Maryland on 1/11/2016

Crutchfield Customer Review (What's this?)

Excellent power and compact size made installation a breeze.

Pros: Power Size


Small but mighty!

Chuck B from Georgia on 12/8/2015

Crutchfield Customer Review (What's this?)

Picked up this little guy to drive my JL 12W3. Sub is rated at 500 rms, and that's what this amp runs at. Nice match! Been breaking everything in for about a month now and have not had any amp cutouts. Not even once! Great product from alpine.

Pros: Size,price, quality, fit my specific needs perfectly.

Cons: None

Alpine Mono Amp

Amp from Pennsylvania on 11/29/2015

Crutchfield Customer Review (What's this?)

This Amp seems to be doing what its made to do. Really enhances the sub woofer its connected to.

Pros: Small and compact Takes up minimal room in the rear of the car and does not produce alot of heat.

Cons: N/a

Great product

Brandon from North Carolina on 10/4/2015

Crutchfield Customer Review (What's this?)

Small compact size could put almost anywhere. Sounds great puts out plenty of power

Pros: Built in line-in so no need for extra parts

Cons: Only con I see it the remote bass knob isn't included. Other than that, none.

Awesome Alpine Amp!!

SouthernMDBassHead from Maryland on 8/23/2015

Crutchfield Customer Review (What's this?)

I have this amp pushing 2 JL's 8 inch subs (CP208LG-W3v3) and it does an amazing job at it. The amp and subs are installed in the rear seat of my 96 F350 and fits perfectly. You can not go wrong with this amp or crutchfield's customer service. Highly recommend!!

Pros: Amazing Amp. I love how the amp can sense that it is getting too hot and will drop some of the current so that it does not overheat and still continues to power the subs (awesome technology).

Cons: Nothing.

Good amp

Anonymous from Kansas on 8/18/2015

Crutchfield Customer Review (What's this?)

Gets pretty warm, but puts out good power. Mine was tested for 516 actual rms.

Pros: Looks good. Small size. Puts out good power

Cons: None

Excellent Amp

Brandon from Virginia on 7/15/2015

Crutchfield Customer Review (What's this?)

Upgraded from a bazooka EL1500 and the improvement is astonishing. I have it paired with an Alpine SWS - 12D4. The Sound quality is amazing and the power is incredible. Audio gives a crisp clear lead in and out. Everything is mounted in a Honda s2000 and on multiple occasions I've had to reduce the power. The compact size is the best feature. It can be mounted anywhere and out off sight which is exactly what I wanted. Small enough to easily sit flat in a spare donut with room to spare. Would buy again in a heartbeat.

Pros: Compact Size Powerful Crisp Clear audio Easy installation and manual instructions

Cons: None

Alpine MRV-M500

Bobby B from Pennsylvania on 7/13/2015

Crutchfield Customer Review (What's this?)

Solid Product, easy hookup, was rated for 512 watts at 2 ohms. Only gave it 4 stars because I only had it for a few months. Will see how long it lasts. It won't be abused. Crutchfield has be great with any return and advice on hookup problems. I can't think of any other online authorized dealer that stands behind there products like they do. Very satisfied.

Pros: 4 ga hookup,no bells or whistles, just what you need. Clean!

Cons: Slightly overpriced, wiring works loose after its hooked up.


Winston from queens, New York on 7/11/2015

Crutchfield Customer Review (What's this?)

little but Talawa

Pros: wicked amplifier

Cons: none

Alpine MRV-M500

Anonymous from Florida on 6/20/2015

Crutchfield Customer Review (What's this?)

I am replacing an older unit with this one. So far it performs better than expected. Gives me the boost I was looking for.

Pros: This product is smaller than its father. Much easier to fit under seat.


Great amp!

danny from bronx New York on 5/22/2015

Crutchfield Customer Review (What's this?)

Great amp! Does what it needs to do, super compact. I thought it be bigger but the size is amazing. Being small you have many options in placement. Did a 10-11 hour drive from NC to NY and amp didnt over heat or shut off once. Alpine makes amazing amps! Deff recommend! 2009 suba wrx sti Hatch

Pros: Small compact, great price! Solid build quality. Didnt notice any overheating even after a 10hour drive from NC to NY. ** i never exceeded 75% of amp/sub volume on this drive or ever in that matter. How you push your amp and where you place it is the factor in overheating.

Cons: None at this time.

Love this amp

Eddie K. from New Hampshire on 5/21/2015

I have an older version of this amp that I've been using since 2008. It sounds great no matter the configuration I use. I've had it running 2-10's in 2 ohms, I've run a dual 4ohm voice coil 8 inch type r in 2 ohms, and am now running a JL 8 inch 4 ohm sub and this amp delivers. It has always delivered powerful sound without distorting. One of the best sub amps out there, especially for the money. Can't go wrong.

Pros: Powerful sound in either 2 or 4 ohms, reliable.

Cons: None


Anonymous from wichita, ks on 4/4/2015

Crutchfield Customer Review (What's this?)

This apline 500w amp is in my opinion the best bang for your buck, alpine are the best amplifiers they never disappoint....i have this amp pushing a JL audio w3 and it sounds great.



Alpine MRV-M500

Anonymous from Waukegan il on 3/22/2015

Crutchfield Customer Review (What's this?)

great all around amp



Good amp

99 max from Bessemer,al on 3/22/2015

Crutchfield Customer Review (What's this?)

Good power for such a small amp. Running one ten inch alpine and gives a very nice blend to the polk components and coaxial.

Pros: Small and powerful

Cons: None

Alpine mrv500

DA from Detroit on 3/5/2015




Outstanding amp

Joe from Florida on 2/21/2015

Crutchfield Customer Review (What's this?)

Great amp with plenty of power in a small compact body. Nice no frills value

Pros: Small size, big power

Cons: None

Great Amp

Rob from Tennessee on 1/17/2015

Crutchfield Customer Review (What's this?)

This amp is awesome......does'nt overheat and has plenty of power

Pros: very nice high power amp that is small

Cons: it wasnt free

the alpine 8" sub ,filled all the base I needed and saved on my limite

Rick from H.Of Glory from woods of Virginia on 1/1/2015

Crutchfield Customer Review (What's this?)




MRV-500 Kicks

TB from Maryland on 11/29/2014

Crutchfield Customer Review (What's this?)

Added this amp to a Subthump box holding (2) Alpine SWS-10D2's in my '03 Silverado & it really kicks

Pros: Great price & small size for tight installation area

Cons: Notta...


Anonymous from Boston, MA on 7/22/2014

Crutchfield Customer Review (What's this?)

Best amp for the money. Had the MTX Road thunder Rt500d before it was garbage. Ive had it for 2 days and it hits wicked hard and sounds amazing.Running two Alpine 10 S4s. Runs very cool doesnt over heat and its tiny and is no more than 5 pounds. I read alot of the reviews people had and couldnt agree more i would recommend this to anyone who wants a good kick but doesnt want to spend a ton of money.

Pros: Small size, Hits hard, Sounds great

Cons: NONE

Great little amp

Josh from Commifornia on 7/22/2014

This amp has done a great job for me so far. Nothing unexpected when installing, it has never shut off, and the terminal covers really clean up the looks.

Pros: Compact size, puts out more than it's claimed power, and it looks clean.

Cons: None

Nice Amp

Jeff S from Pigeon, MI on 7/21/2014

Crutchfield Customer Review (What's this?)

Very happy with this amp. Powering a JL Audio 8" MicroSub, and the package rocks!!!

Pros: Small size, good performance.

Cons: None

Alpine MRV-M500

Chris from Granite Falls on 7/6/2014

Crutchfield Customer Review (What's this?)

This amp matched up to my Alpine 10 inch sub run 2 ohm is incredibly loud and very clear. I am very impressed as I always am with Alpine products. I listen to a wide variety of music and this amp doesn't fail me on any of them.

Pros: easy hook up, adjustable crossover, small foot print. LOUD!!!!!


Nice amp

FMS from Houston, Tx on 6/29/2014

Crutchfield Customer Review (What's this?)

Easy to install, used to power four kicker speakers in doors and rear deck of honda civic. Great power and clarity.

Pros: Price

Cons: None


Caleb M from Greenfield, IN on 5/27/2014

I've been running this amp for almost six months now and its holding up perfectly. It is really efficient even compared to other class D amplifiers. I was originally powering a pioneer tsw-304r with it at 4 ohms but switched over to an Obsidian Audio 12v3 at 2 ohms. Works great with the new subwoofer as well.

Pros: Small Light Plenty of power for its size

Cons: none

Capt dogtooth

Brian from Grand Isle, La on 5/13/2014

Crutchfield Customer Review (What's this?)

I have just added the MRV-M500 to drive one 10"sub in our 50' Viking yacht, nice add-on the a shipshape sound upgrade!

Pros: Liked the new wire mounting system, makes for a fast and secure connection.

Cons: none as of now.

Great Amp

Reese from Waller Texas on 5/5/2014

Crutchfield Customer Review (What's this?)

Amp really drives JL audio twin 10" subs in my Jeep JK. Loud and clean. Love the sound adjustments that you could make. Due to its small size it fit great under front seat. Runs a lot cooler than other amps ive owned. Has never cut out due to heat

Pros: Small size, runs cool, sound adjustibility

Cons: None


C.Delapaz from Gary,IN on 4/16/2014

Crutchfield Customer Review (What's this?)

Just hooked up my new MRV-M500 and it rocks no doubt about it, if your looking for serious pound in your Bass Alpine is what you want in your trunk. put it with some 15" subwoofers and feel the vibe!

Pros: Alpine really handles its own.

Cons: none!

Best Amp for the $

xpgdeadone from Portland OR. on 3/5/2014

By far The best amp I have ever owned. I had to add my review after reading the 2 reviews that only gave this 4 stars. For one if your digital Alpine amp is getting hot you need to learn how to install an amp as its digital it doesn't draw much heat to begin with. Then to the guy that says its just ok. You sir need to learn how to adjust an amp and realize its pure watts not the garbage you get in most amps.

Pros: Everything.

Cons: none

Nice Sub for the Money

Jaybatt from Philadelphia, PA on 2/18/2014

Crutchfield Customer Review (What's this?)

Nice sub for the money and small enough to fit in my 350z nice without taking up a lot of room or adding too much weight on the back end.

Pros: Compact, nice sound

Cons: wish it kicked at a lower level

The MRV-M500

Heat from Cap City VA on 2/11/2014

Crutchfield Customer Review (What's this?)

This is a very nice piece of work the (MRV-M500 by Alpine). You can install this just about anywhere & it will deliver thequality of bass that your looking for.its pushing (2) 10" Bass Line Subs in my GMC Sierra Ext.Cab & they sound great. If you're looking for a good quality Mono Sub Amp this is the one,I've even got my eyes on the 4 Channel version to install to my highs & miss. I highly recommend the the way its Alpine!!!!



Alpine MRV-M500

Anonymous from Round Rock, TX on 1/23/2014

Crutchfield Customer Review (What's this?)

Good sound



Dont let it fool you

Rafael g jr from Brownsville, TX on 11/8/2013

Dont let the size of this amp fool you, its compact but powerful, im pushing a 12" orion sub and at first i was hesitant but wow can this amp sound good, very awesome little amp, the speaker is running efficiently and sound is amazing, i personally like alpine and memphis audio products they have never failed me, this is just another example of Alpines commitment to build quality, feels sturdy, i highly recommend

Pros: Size of the amp and amount of power

Cons: None

Excellent Product!

Kevin from Pittsburgh, PA on 11/1/2013

Excellent power and excellent quality!

Pros: Everything

Cons: none!

Nice amp

Dustin from Pontiac, MI on 9/16/2013

Crutchfield Customer Review (What's this?)

Runs great no need for a capacitor. Doesn't move my voltmeter at max rms volume.

Pros: Small and powerful.

Cons: Couldn't afford two.

Powerful Compact Affordable Amp

B from South Florida on 8/31/2013

Crutchfield Customer Review (What's this?)

Bought this amp to power a compact kicker 10" speaker rated for 600 watts. Alpine always rates their amps below actual output so although rated at 500w the actual test page that comes with the amp shows an output of almost 570w. The amp more than produces. Sounds great. Has enough adjustments on it to refine the sound without breaking the bank. Love the remote bass knob as well, it's a must as you can control the level from the front seat.

Pros: Great price, Compact, Puts out ample power, Accepts Alpine Rux Knob.


Alpine impresses again

Dylan J from Lihue, Hawaii on 8/21/2013

Crutchfield Customer Review (What's this?)

Alpines amps are amazing and this model is no exception. It produces clean power to the subwoofer right when it needs it most. I installed this amp right under my seat in my 2008 tacoma and it still has plenty of room to breathe. This little amp packs a big punch! I recommend this to anyone looking for lots of efficient power in as little space as possible.

Pros: Size. Response. Efficiency. Ease of installation

Cons: None so far

Great Amp

EricB from Arlington Hieghts, IL on 8/20/2013

Crutchfield Customer Review (What's this?)

Installed the MRV-M500 with the RUX knob. I'd argue the Rux knob is a must for instant gain control of the sub. It's powering two Polk DXI104's in parallel . Sounds tight and clean.

Pros: RUX knob gain control works great to instantly control gain. Small form factor

Cons: None


Dcline15 from Edwardsburg, MI on 8/17/2013

This amp can deliver. Each amp that alpine sells comes with a little card that tells you when it was made and how much RMS or power it was putting out at the time of testing. I have had this amp for awhile and I am not suprised by the results. Alpine is a true brand you can trust and has and hopefully always will be. This amp is only rated for 500 RMS but the sheet that came with it said it was putting out 566 RMS. And i was surprised that they said it could really put so much out foe being so small. So i went and had it tested, the amp really put out almost 600 RMS. Which is just amazing. This is just one amazing amp I would recommend this to anyone who wants to have a cheap but reliable system in any vehicle. This amp is small and can be put just about anywhere you need it to go, under your seat or behid a bench seat or even right on the box. Where I have mine at is right on the side of my sealed box. This amp is small enough to were it will fit right in the wedge part of it. I give this Amp all 5 Stars!!!

Pros: Small Powerfull Sleek Futuristic Clean Easy to hook up and tune Solled its heavy but not to heavy but it still feels like you can toss it around and will hold up to wear and tear for years

Cons: NONE!!

Smaller with more power!

Thntx from GA on 7/19/2013

Crutchfield Customer Review (What's this?)

Well, Alpine has delivered once again. A little history first. In my previous car, I had an Alpine MRP-M450(rated at 400w @ 2ohm) and was attached to two 10" subwoofers. The sound was awesome, it fit nicely under the driver seat and the power was great. After many years of service I had to say goodbye when the car sold. Fast forward to the new car and the new Alpine MRV-M500. Space was even a bigger issue as I did not have as much room under the seat as I had in the old car. The MRV is almost 40% smaller. So, it fits! It's also rated at 500w, nice increase for sure. Also, the price was the same as the old one was 4 years ago. Are you kidding? It is powering two Polk DXi 104s and it hasn't broken a sweat. 140+ dB at the windshield. Sound quality is what you would expect from Alpine: nice and warm.

Pros: Plenty of power, great sound and good looks.

Cons: None!

great amp!

Travis from Arizona on 7/18/2013

Crutchfield Customer Review (What's this?)

Have this powering a pioneer 10" shallow sub in a hidden .65cf box in my VW GTI. Rated at 500w RMS @2ohms, but mine came with a certificate certifying it at 576w RMS, not bad! Running at 4 ohms it should be a bit over 300 RMS, and its more than enough good, clean power to keep a smile on my face with all types of music. Oh, and its tiny too!

Pros: Price, size, looks, rux knob compatible, but most importantly, sound!

Cons: none!

Alpine MRV-M500

58Driver from Greenville, SC on 6/28/2013

Crutchfield Customer Review (What's this?)

The perfect amp to supplement speakers powered by a head unit only. Running it at 2ohms driving 2 SWE-10S4's this thing isn't breaking a sweat. It doesn't even get warm. The compact size made it easy to mount, and it easily accepted my 4 ga. power and ground wires. The blue light is pretty cool visually. Bottom line, this is a great amp to balance out the bass.

Pros: Compact, powerful, attractive package

Cons: None

decent amp

todd from Logan, OH on 6/7/2013

Crutchfield Customer Review (What's this?)

I thought it would make my alpine 12" type s pound harder than it did but still hits pretty good.

Pros: Great price

Cons: Gets hot and its only turned up half way.

Great, efficient amp!

DLW from Mansfield, TX on 4/28/2013

Alpine continues to impress! This amp's footprint is so small that it allowed me to mount it on the side of my under-seat enclosure in my truck, making for a very attractive install. Also, this small amp packs a PUNCH! I've got it running at 2ohms, pushing two 10" Tobys ( It sounds AMAZING! The blue square that lights up is neat-looking at night. When driven hard, this amp barely warms up. I anticipate this amp will give me years of phenomenal music.

Pros: Size Simplistic design Power Brand Price per watt


Plenty of Power

Jason S. from Jena, LA on 4/27/2013

Crutchfield Customer Review (What's this?)

Installed this amp a couple of weeks ago in my 2010 Honda Insight. Hooked it up to a JL Audio HO110RG-W3v3 and it pushes this speaker to the max. Had to wait a while for the subwoofer to properly break in, but now it slams the bass. A must have for this amp is the RUX-KNOB that goes along with it. So easy to give different bass levels for different types of music or just different songs in the same genre. Each of the amps comes with it's own certificate showing how many watts it actually made at the factory before it was shipped. My certificate showed 572 watts and I have no reason to doubt this. I have the gain turned up on the amp and the RUX-KNOB has to keep most of the songs in check so there is no distortion. You would need to buy a subwoofer that could handle more than 500 watts before you start to dial up the bass boost. Even after listening at max levels for about one hour, the amp is warm, not hot. Never had it go into safe mode either. It was very easy to set up, connect and get running. Small size makes it easy to find a place to mount. This amp definitely is worth every bit of it's price. It's power makes me consider the fact that I could hook up a W6v3 and it would be able to push that speaker to the max also. Don't hesitate to get this amp and the RUX-KNOB to go with it. Can't be beat.

Pros: POWER!!!, RUX-KNOB, small size

Cons: NONE

Apline, " A+ "

MattS from Richmond,VA on 4/18/2013

Crutchfield Customer Review (What's this?)

Straight to it, using this "little" amp, w/ 4g power, to push a JL 12w3v2 in a sealed sub enclosure. It rocks out tight crisp bass. Possibly it's my alternator, however, w/ it's 'd' class rating I do NOT need a capacitor. It fits fine under the front seat of my Mazda3i next to the Alpine PDX4.150 pushing my 4 high pass speakers ( JL's C5-5x7's ) By the way, I am using my OEM HD unit w/ the ' Audio Control LCQ-1' line converter w/ EQ , from Crutchfield, and I have no noticeable whine and great sound.

Pros: cost, efficiency, size, line bass control ( optional )

Cons: have none

100% !!!

SamS from Maryland on 4/11/2013

Crutchfield Customer Review (What's this?)

This Alpine 500 watt mono amp is 100% GREAT!! 1st, it is Alpine which is a great company and has been making leading amps and subwoofers since day 1 so you know it will perform well. This amp replaces the Alpine mrp-m500 which is pretty much the same amp, same specs except as far as specs go this one can go up in Hz ( up to 400 Hz ). I dont know why you would need to go that high, but its there if you want to.This new version also has a beautiful sleek design and look to it, but best of it is SMALLER than the Alpine mrp-m500 and LESS WEIGHT so you can insatll and fit this almost anywhere you want. The old version Alpine mrp-m500 is a great amp and i would still buy and use it now. ( it is a little bit cheaper and you get same specs, performance and results ) but if you are tight on space or want to be able to mount your amp anywhere you want, go with this Alpine mrv-m500 as i did.( to me it was worth the little extra money ) You will not be dissappointed! I hooked up this amp to just a single 10" Alpine SWS D4 subwoofer in a 4 dr Honda Accord and it sounds incredible for just a single 10" sub. ( better than my 2 12" Alpine type E subwoofers powered by an 600 watt mono amp in my Audi A6 ) I would recommend this to anyone and I would buy this amp again and again!




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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-M500 is rated as follows:

  • Power Output:
    • 4Ω: 300 watts x 1-channel (<0.2% THD+N)
    • 2Ω: 500 watts x 1-channel (<0.3% 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. This being a mono subwoofer amp, the crossover is always engaged.

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

Wired Remote: An RJ-25 jack is provided for connecting an optional RUX-KNOB wired remote (item number 500RUXKNOB, sold separately), allowing remote control of the output level of the amplifier.


  • Battery: set screw terminal; accepts up to 4 gauge wire
  • 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-M500's internal crossover
  • Speaker Level Input: Molex plug input for supplied 8-pin harness
  • Wired Remote: RJ-25 jack for optional wired remote

Note: Alpine recommends 4 gauge power and ground wire (minimum).

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Product reviews from the Crutchfield Labs

Alpine's V-Power car amplifiers are smaller than ever, and they employ smart digital technology that makes them incredibly versatile.

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Q & A

Customer Q&A

Crutchfield asked  
Why did you buy this?

Name, recognition, reputation. [ Gene  Oct 15, 2016 ]
Have this amp mated to a JL 10" sub in my jeep and it's a match made in heaven. Picking up a second now to put into my firebird! [ Robert  Sep 16, 2016 ]
Great amp good price [ Steven  Sep 12, 2016 ]
I chose this amp for its compact size and outstanding performance. [ Travis  Sep 05, 2016 ]
It's Alpine 500 what else to say [ Joshua  Sep 04, 2016 ]
Features, cost and reviews [ Tom  Aug 15, 2016 ]
power/price/reviews [ Tom  Aug 06, 2016 ]
used it before mine got water damage [ CHRIS  Apr 23, 2016 ]
This amp looks cool, and is a perfect amp for the subs i bought [ DYLAN  Apr 09, 2016 ]
Recommended by Advisor Chip Chip's Bio: [ Joseph  Mar 28, 2016 ]
Sub power [ Mike  Mar 18, 2016 ]
Great amp. Had two of them in the past in other systems [ I  Mar 14, 2016 ]
quality amp [ Jennifer  Feb 21, 2016 ]
I chose this amp mainly because of the Alpine name and their reputation for quality mobile electronics. Also, the capability of controlling the amp with a remote. Other features included low THD and a good Signal-to-Noise ratio. It is a good price for this powerful an amplifier and Alpine tests the output of every amp so I will get the 500 RMS at 2 ohm or greater. [ Alan  Feb 11, 2016 ]
Already have the MRV F 300 4 channel.....wanted the same high quality. [ BRIAN P  Feb 10, 2016 ]
Alpine...need I say more. I've always used Alpine amps and these little guys do not disappoint. I have this running a JL Audio CS110G-W6v3 sub, drives it beautifully for crisp clear sound with my music tastes. [ titanium man  Jan 18, 2016 ]

13 questions already asked

You could wire this to a factory sub easy, just look up the wiring diagram, might have to do a lot of splicing. What vehicle is this for? [ Isaiah  Aug 24, 2016 ]
Yes it can I.have a Subaru forester with a factory sub and I used the factory signal wire to work the new sub. [ RANDY  Aug 24, 2016 ]
Yes, it should. This will give you 300 W RMS at 4 Ohm, and the Polk MM 1240D is a 4 Ohm woofer with a RMS range of 100 - 425 W. I have had good audio with the low-pass filter around 300 Hz, however with a 12" woofer you might consider seeing how it sounds at a lower cutoff. [ gareth  Jun 29, 2016 ]
This would not be a good choice for voice speakers. This amp works best in the 7-400 Hz range - so it is really designed for subwoofers. I would recommend contacting an Advisor by phone (1-800-324-9695) or online chat. They will be able to help you track down an amp that will work for you system and your budget. [ Jeff  Jan 20, 2016 ]  Staff
I do not believe so since this is only a mono block you would not be able to send the sound to multiple speakers. [ Larry  Jan 17, 2016 ]
Maybe you have the amp level too high. I set my amp level so that it hits the highest level I want when I have knob turned all the way up. [ Chris  Jan 23, 2016 ]
Bernard, Been using the RUX knob for about 2 1/2 years, with Alpine M500 driving a 10" MB Quart woofer in a 2013 F150. Have not had any issues with the interface. I never use the knob past 50% anyway. I'm sure other variable resistors would work, just not plug and play. Good luck. [ Ken  Jan 18, 2016 ]
Specs say pre amp non fading outputs. I had front, rear and sub outs on my headunit but i suspect you could feed the high pass out to other amps [ BRAD  Jan 11, 2016 ]
Yes [ Lisa  Sep 21, 2015 ]
NO [ DEBORAH  Sep 16, 2015 ]
No, the knob is a separate purchase. [ Michael  Sep 15, 2015 ]
NO it doesn't. You will have to purchase it separately. [ Robert  Sep 15, 2015 ]
No [ JARROD  Sep 15, 2015 ]
NO purchase separately but we'll worth it [ VINCENT  Sep 15, 2015 ]
Hey Chris awesome choice in amplifier, if you are installing one amp then tapping into one rear deck (6x9) speaker is good enough. it all depends on your stereo system, if your car has a built in amplifier from factory and you want to use the high input harness for your amp all you need is to tap into one speaker (2 wires). if you connect both (6x9) speakers to one amp you will minimize the power to the amp. I have 2 MRV-M500 installed in my Buick Verano 2012,and that particular car comes with a built in factory stereo amp. when I first installed both amps I had one amp per speaker and I tapped in to the (6x9)'s 2 speaker wires for the left amp and 2 speaker wires for the right amp. what happened is the amps sounded very distorted. what I did to straighten the power out was, I tapped into one (6x9) speaker 2 wires using the high input wires of one amp then with RCA plugs I connected the other amp to the first amp. distortion was gone and now you can here me coming 5 blocks away. I have 2 MRV-M500 connected to 2 SWS-15D4 alpine speakers one amp per speaker. I hope this helps. [ Clyde  Feb 19, 2015 ]
I only used 4. Tapping into only my 2 rear speakers to pick up the bass and everything worked fine. I had it that way for a year then got a new head unit and connected normal RCA's. Biggest thing is connecting the remote turn on wire from the amp to a circuit that actually turns off when the car is off if you are not going to tap into the back of the head unit. Hope that helps. Good luck. [ BRENT J  Feb 18, 2015 ]
Chris, Just to confirm you are asking about the MRV-M500 amp which is Mono. The MRV-F300 is the 4/3/2 channel amp. If you are asking about the MRV-M500, I used pre amp inputs but since this is a mono amp you should only need 1 channel input. With that said I would recommend using L&R speaker inputs in case the source material has bass in only one channel. This is rare but can happen. [ BRAD  Feb 18, 2015 ]
but don't forget about the remote power wire coming from the stereo [ ROBERT L  Feb 05, 2015 ]
You have to have the "remote" wire going from the head unit to the amp telling it to turn on and off whenever the head unit is powered on or off. It is basically a 12v power supply. I just have a switched 12v running from the battery to the amp completely bypassing the head unit. [ TODD B  Feb 05, 2015 ]
it sounds like you may not have your remote wire to your amp ran to the right place. How do you currently have it ran? [ BRANDON KEITH  Feb 05, 2015 ]
If you purchased the product from Crutchfield, feel free to contact our Tech Support team. They can walk you through the settings on the product and see if there may be a fix. Our toll-free Tech Support number is printed on your invoice, and is also available under the "My Orders" tab in the "My Account" section of our website. If you did not purchase the unit from Crutchfield, then you may want to contact the manufacturer. You can also post your question in our forums: Or try our online support center: [ Greg  Feb 05, 2015 ]  Staff
You can use the old bass know with the telephone cable connection. [ justin  Jan 30, 2015 ]
this amp looks like it has aremote bass controll that can be dash mounted . [ WALTER  Jan 27, 2015 ]
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  Dec 21, 2014 ]  Staff
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  Mar 30, 2014 ]  Staff
when I first installed the Alpine MRV-M500 in my car, I noticed that about, in the first six hours, it was very very warm, but after that, it has been working fine, I did not do anything to fix it , I've had this amp for five months, and when I touch it with my hands, hardly feel hot and the music in my car listening very clear, I also noticed that the sound of my 12'' subwoofer had a change, now also the sound is strong but does not have much power as punch to make my car shake or vibrate as Previous amplifier that I had, but still I like it because all my music is heard entirely clear. [ ALEJANDRO  Jan 16, 2014 ]
i have never even felt mine get "hot". the only time i check it is during the summer on the really hot day (99-102). have you try mounting the amp so there's a space under? And maybe try an open mounting position, meaning good air flow. mines on top of my box dual subwoofer 12in box. and its taking up the whole back part part of my extend cab s-10. you might just have a bad amp to. one of the main reasons i bought this amp was the fact of its thermal protection. [ STEPHEN D  Jan 07, 2014 ]
I have this amp mounted under back seat in Chevy truck, so I'm unable to monitor heat, if any. [ WILLIAM  Jan 07, 2014 ]
Even though I have a hatchback where the amp can get plenty of air, I have noticed that it gets hot, but has never gone into protection mode or declined in performance in any way. The gain on my amp is almost all the way up too. I'm pushing a JL Audio HO 10" W3V3, so the amp is matched up well. I am not a car audio expert, I just know that the amp keep working with a heavy load. [ JASON A  Jan 07, 2014 ]