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Alpine MRV-F300

4-channel car amplifier — 50 watts RMS x 4

Item # 500MRVF300

Alpine was thinking about versatility when they built their V-Power Series MRV-F300 4-channel amplifier.

Alpine was thinking about versatility when they built their V-Power Series MRV-F300 4-channel amplifier.

Item # 500MRVF300

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C$319.99
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About the Alpine MRV-F300

Compact powerhouse

Alpine was thinking about versatility when they built their V-Power Series MRV-F300 4-channel amplifier.
Alpine Authorized Online Dealer

Compact powerhouse

Alpine was thinking about versatility when they built their V-Power Series MRV-F300 4-channel amplifier.

  • In 4-channel mode, it delivers 50 watts RMS to each of your car's front and rear speakers, making for some sweet sound on your drive.
  • You can also run this amp in 3-channel mode, powering a subwoofer with 150 watts RMS while driving a pair of full-range speakers with 50 watts each.
  • Or, if you need a good amp for bass, you can switch the amp to 2-channel mode and send up to 150 watts RMS each to a pair of subwoofers.

You can always find a place for this amp in your system, and Alpine made this amp so small — 40% smaller than the previous model — it can fit almost anywhere.

Thermal protection without annoying shut-downs

The MRV-F300 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

High- and low-pass filters put you in command of the frequencies that reach your speakers, while a bass boost lets you apply some extra 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 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.

Alpine MRV-F300

Alpine MRV-F300 input and control panel

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Product highlights:

  • 4-channel car amplifier
  • 50 watts RMS x 4 at 4 ohms (75 watts RMS x 4 at 2 ohms)
  • 150 watts RMS x 2 bridged output at 4 ohms (4-ohm stable in bridged mode)
  • CEA-2006 compliant
  • variable high- and low-pass filters (50-400 Hz, 12 dB/octave)
  • selectable bass boost (+12 dB at 50 Hz) on channels 3 & 4
  • MOSFET power supply
  • preamp and speaker-level inputs
  • Remote Sensing automatic turn-on when using speaker-level inputs
  • gold-plated screw terminals
  • fuse rating: 40A x 1
  • 8-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
  • MFR # MRV-F300
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What's in the box:

  • 4-Channel amplifier
  • 40 amp ATO fuse (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

Featured video:

Customer reviews

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Alpine MRV-F300 Reviews

Average Customer Review(s):

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Pros:

Cons:

Crutchfield response

Product Research

Features

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-F300 is rated as follows:

  • Power Output:
    • 4Ω: 50 watts x 4-channels (<0.08% THD+N)
    • 2Ω: 75 watts x 4-channels (<0.1% THD+N)
  • Signal to Noise Ratio: 81 dBA (98 dB at rated power)

Bridgeable: Both the front and rear sections of the MRV-F300 are bridgeable, so it can be used as a 4-channel, 3-channel, or 2-channel amp.

Note: When bridging the amp, Y-adapters should be used to feed identical signals the channels to be bridged together.

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.

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

Controls: The front and rear sections of the amplifier (labeled Channel 1/2 and Channel 3/4) have independent gain and crossover controls. Channel 3/4 also adds a Bass EQ switch:

  • Channel 1/2:
    • Gain: rotary dial; continuously variable from 200mV-4V using the preamp inputs or 500mV-10V using the speaker level inputs
    • Crossover Mode: three position switch; Off (full range), High Pass, or Low Pass
    • Crossover Frequency: rotary dial; variable from 50 Hz to 400 Hz
  • Channel 3/4:
    • Gain: rotary dial; continuously variable from 200mV-4V using the preamp inputs or 500mV-10V using the speaker level inputs
    • Crossover Mode: three position switch; Off (full range), High Pass, or Low Pass
    • Crossover Frequency: rotary dial; variable from 50 Hz to 400 Hz
    • Bass EQ: two position switch; On/Off; adds +12dB boost centered at 50 Hz

Connections:

  • Battery: set screw terminal; accepts up to 8 gauge wire
  • Remote: set screw terminal; accepts up to 8 gauge wire
  • GND (ground): set screw terminal; accepts up to 8 gauge wire
  • Speaker Outputs: four pair of set screw terminals; accept up to 10 gauge wire
  • Line Inputs: 2 pair of stereo RCA jacks
  • Speaker Level Input: Molex plug input for supplied 8-pin harness

Note: Alpine recommends 8 gauge power and ground wire (minimum).

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Customer Q&A

Q
Crutchfield asked: Why did you buy this?
A
Price and brand [ Fabian  Feb 12, 2019 ]
A
Nice compact , very clean power , good quality , highly rated , reasonably priced . And recommended by a company who seriously knows what their talking about . [ Stephen  Jan 08, 2019 ]
A
Alpine amps are rated honestly and perform flawlessly. This was an easy choice to make. Plus I have another Alpine Sub Amp. They will look nice mounted together. [ D  Oct 29, 2018 ]
A
Its Alpine enough said! But honestly Alpine makes great products and their entry model line is a decent price but not over priced. [ THOMAS A  Oct 08, 2018 ]
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Quality [ Jose  Sep 03, 2018 ]
A
Installed as an upgrade to fathers truck. Sound is perfect for the everyday use [ Julie  Aug 04, 2018 ]
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Great specs and price [ Robert  Jul 28, 2018 ]
A
how it handles heat [ Carlos  Jun 15, 2018 ]
A
Good reviews, price was right [ James  Mar 06, 2018 ]
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I want cleaner sound and a bit more power than my head unit can supply. The small footprint is also a bonus. [ Mark  Feb 21, 2018 ]
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I bought an Alpine (older model) from Crutchfield a while back and since it lasted so long I got the same equivalent. [ Anthony  Feb 11, 2018 ]
A
I need a good, clean 4 channel amp to power four speakers for my Lancer. I had (and still have) an Alpine 2 channel that wasn't very powerful, but super clean and ran very cool. I have had an overall very good experience with Alpine products over the last 35 years. [ Robben  Jan 21, 2018 ]
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Look at the reviews, plus I have never bought a Alpine Product that has ever been a disappointment [ SCOTT  Sep 26, 2017 ]
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I love Alpine Amps. [ Marc  Aug 11, 2017 ]
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Amp produces crisp and clean audio if rms is matched to speakers. I thought my back speakers were toast until I hooked up this amp. Highly impressed. No noticeable distortion at all. Polk audio dash, retro sound rear [ Anthony  Jul 01, 2017 ]
A
Alpine quality nice looking unit. [ Darwin  Jun 25, 2017 ]
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This was recommended by Conrad, the Crutchfield adviser who helped me out. After reading the reviews on this site and other sites, this seems to be a top notch product. [ William  Jun 01, 2017 ]
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Extra watts for the mids and highs from the 6x9's. [ William  Apr 19, 2017 ]
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No need for btl, perfect for oem head unit. [ William Ortiz  Mar 11, 2017 ]
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Size, value and rating. [ Tedi  Sep 15, 2016 ]
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Positive reviews [ Steve  Jul 27, 2016 ]
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Alpine quality, good size and value. [ Paul  Jun 07, 2016 ]
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My whole full range system was Alpine designed, and this fits my power handling application without the worry of compatibility with my Kenwood touchscreen like the power pack. [ Valerie  May 24, 2016 ]
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Great little amp. More than enough power for what I need. [ Jarret  Apr 28, 2016 ]
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Chuck advised me it's one of the best on the market and I trust the Crutchfield advisors [ Hector Luis  Apr 21, 2016 ]
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Speaker power [ Mike  Mar 18, 2016 ]
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best amplifier brand to go with my pioneer nex head unit [ edmund  Dec 26, 2015 ]
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20 questions already asked

Q
Will this amp be enough to power a pair of 3.5 2 way Rockford fosgate P132 and 2 pairs of Rockford fosgate R169X3 3 way speakers?
[ Shamika  Dec 12, 2018 ]
1 answer
A
Thanks for your question. For information on selecting the best amp 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 19, 2018 ]  Staff
Q
mrv-f300 blue light stays on, it's connected to the head units blue white stripe remote lead? Shouldn't that light be off when cars off?
[ David  Sep 02, 2018 ]
3 answers
A
To my knowledge it should only be lit up if the radio is on but if completely powered down you should see nothing ! Check your settings on the radio and make sure you don't have a bypass switch to the amp on , double check wiring then try unplugging the blue white wire if all fails send back get a new one they are great amps never had a days problem with mine !
[ MATTHEW B  Sep 03, 2018 ]
A
Im not sure I had a shop do the install
[ bardia  Sep 02, 2018 ]
A
Yes that night should be off. Verify that the remote lead for your car is that wire. If it is that wire, could possibly be a bad unit. The light status on for a second or two after the car is off, due to capacitors. Not long though, it should be off if car is off.
[ David  Sep 02, 2018 ]
Q
Can I run 2 channels unbridged for now, and add a sub later? Will running 2 channels only change the watt output, as I will be hooking up 75 watt 2 ohm speakers and don't want to over power them?
[ Marc  Jul 12, 2018 ]
1 answer
A
You can run 2 channels for now without hurting the amp. That does not change the watts and those 2 ohm speakers of yours will still get 75 watts RMS each! My Bio: http://www.crutchfield.com/Support/Bio.aspx?bio=101
[ Paul  Jul 23, 2018 ]  Staff
Q
Do you think it's possible to reposition the ALPINE logo? Just asking for system design/ install purposes. Thanks!
[ Alex G  Mar 17, 2018 ]
1 answer
A
No you can't reposition the Alpine logo there is a cutout wedge where the logo sits in, so if you move it that wedge will still be there, unless you don't mind looking at that cut out.
[ Hector Luis  Mar 17, 2018 ]
Q
Will this accept 4 awg power wire? The directions state only as high as 8 awg
[ Anthony  Jul 20, 2017 ]
5 answers
A
I used 8 gauge it took up 5/8 - 3/4 of the space in the terminal. I'm not sure how thick the 4 gauge is but it might be to thick to fit into the the hole where it connects. Not sure if it helps but I used 8 gauge around 15 feet works fine even when turned up .
[ Raynaldo  Jul 22, 2017 ]
A
4 gauge is what they suggest in the description. I have probably at least 5 of these over the last few years IN JEEPS, trucks golf carts etc. 8 gauge has always been plenty.
[ LANE  Jul 22, 2017 ]
A
Hey Anthony! In terms of necessity, 8 awg can provide plenty of power to the amp. No need for 4 awg. If you own 4 awg already then it is possible to make it fit into the connector. You would need to strip away some of the thickness of the wire.
[ Matthew  Jul 21, 2017 ]
A
Only 8 awg this is a nice powerful amp I have my amp bridge in two channels
[ Mark  Jul 21, 2017 ]
A
Yes I used 4 g
[ ROLANDO  Jul 21, 2017 ]
Q
Where can I find the Jeep Wrangler T harness to connect this Amp to the PWE-S8 subwoofer for true plug and play? I already upgraded my speakers and do not need the entire PSS-21WRA kit just the T harness included with the kit.
[ Wayne  Jun 26, 2017 ]
1 answer
A
You will want to contact an Advisor by phone (1-800-324-9695) or online chat to discuss connecting to your factory system. They will be able to pull up your vehicle and see what will be needed for integration and see if we have what you need.
[ Kenny  Jun 26, 2017 ]  Staff
Q
This may be a dumb question but I am very new to aftermarket stereos I have the Alpine amp with 300w hooked to a 8in kicker sub. Would the amp provide enough power to run 2 8in kicker subs??
[ Peyton  May 11, 2017 ]
1 answer
A
Thanks for your question. For information on selecting the best amp/sub combo 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 models and help you make the best choice for your system.
[ Kenny  May 12, 2017 ]  Staff
Q
Can I run bridged mode to single subwoofer from high level speaker inputs ?
[ jimito  Oct 04, 2016 ]
1 answer
A
I'm pretty sure that you can do what you're hoping to do. The amplifier is quite stable by the way. Sounds amazing.
[ FRED  Oct 05, 2016 ]
Q
Will this amp fit inside a Harley Batwing? I have an Ultra Classic.
[ Woody  Aug 02, 2016 ]
1 answer
A
Amplifier's aren't measured for vehicle-specific fit, however the Alpine MRV-F300 measures 8-1/4"W x 2-3/16"H x 7-15/16"D. I would recommend verifying the mounting area in your Harley on your own to confirm fitment. I hope that helps! My Bio: http://www.crutchfield.com/Support/Bio.aspx?bio=159
[ Larry  Aug 07, 2016 ]  Staff
Q
I have a stock head unit in my jeep.would I need anything special to hook this amp up to it?
[ Brian  May 26, 2016 ]
2 answers
A
LCI ADAPTER
[ LANE  Jul 22, 2017 ]
A
Yes, a good working knowledge of DC circuits. Soldering iron, or male/female terminal connectors. 20.or 18 guage. The amount of wire will be determined by where you place this unit. You may want to replace all of your speakers with high end types. This amp will really kick our some nice loud clear sound! I put it in my Porscne 968 with a Kenwood head. I could not believe the results! -Hope this was helpful!
[ Karl  May 27, 2016 ]
Q
Will this power 2 sets of Polk MM651 UM with enough RMS power to get good performance out of those speakers? The RMS range is very wide on the Polk's, I'm currently running 26 RMS off the head unit and performance is just ok. I like the small footprint and class D benefits of this amp but want to power them correctly. If not this amp, any other suggestions?
[ btc26  May 06, 2016 ]
8 answers
A
Hey there, I've had this in my jeep with a set of polk 6x9 and a set of 6.5 round components for a few years now. I think it sounds crystal clear and goes far louder (without distortion) than any other system I've heard. Unless you're trying to shake your windshield out, this I think would run those great. Superb little amp.
[ Jarret  May 09, 2016 ]
A
Also increasing the power will give you more dynamic, richer sound compared to your head unit
[ JAMIE  May 08, 2016 ]
A
That would be a very nice amplifier for your Polk Audio speakers. Good build quality as well as sound quality. Should produce nice sound quality for years btc26. Good luck to you!!!
[ JAMIE  May 08, 2016 ]
A
I don't know. I'm not running Polks. I selected Infinity Kappa components and two ways.
[ Greg  May 06, 2016 ]
A
I have the same set up, but one of the polks is the complement version. It sounds great, but needs a sub.
[ Brent  May 06, 2016 ]
A
My daughter's system employs this amplifier and she absolutely loves the performance improvement. She had previously used a similarly powered Sony Head Unit and was content until I installed the Alpine Amp. You'll be pleased too.
[ FRED  May 06, 2016 ]
A
Have this amp running 4 polk components. It came from Alpine with test results. It does 83 watts rms each channel, its more than enough for me.
[ Hunter  May 06, 2016 ]
A
I'm powering 4 Polk dxi651s and those are rated for 6-55 watts rms, you're speakers are rated for 100 rms so I would look for a higher rms output for yours, closer to 100 the better
[ Justin  May 06, 2016 ]
Q
Can I use this amp with 5v rca inputs?
[ Tony  Apr 11, 2016 ]
1 answer
A
I did use the RCA input with no issues with a pioneer unit
[ KEVIN D  Apr 12, 2016 ]
Q
Can I hook this up to just 2 speakers in the front? The speakers are infinity 6502ix. They are 3 ohm speakers but say they run a true 4 ohm with the speaker wire. If so, what wattage would I be putting out?
[ Dan  Dec 13, 2015 ]
3 answers
A
I would suggest that you could use two speakers and agree that the wire would increase the impedance. My daughter loves this amplifier and now wants a sub and additional Alpine amp. I hope you enjoy your purchase.
[ FRED  Dec 14, 2015 ]
A
In between the 2 ohm and 4 ohm rating a don't remember what it puts out
[ hami310  Dec 14, 2015 ]
A
Should be 150 watts per speaker
[ Justin  Dec 14, 2015 ]
Q
Can I run this amp to power 2 infinity 6502ix speakers? The specs say the speakers are 3 ohm running true 4 ohm due to the speaker wire. If so, what wattage would I be running at?
[ Dan  Dec 12, 2015 ]
1 answer
A
Your question has a couple different parts to it. First It is unlikely that your wire is 1 ohm. It would take about 150 feet of 18ga wire to be 1 ohm. So you are probably just slightly over 3 which would put you half way between the 4 ohm power rating (50W) and 2 ohm (75W) so somewhere around 62W. That assumes unbridged. If you're planning on bridging it with 3 ohm speakers that would be equivalent to a 1.5ohm unbridged load and could cause the amp to shut down.
[ Guy  Dec 13, 2015 ]
Q
I want to run this amp in a three ch mode. What 12" subwoofer do you recommend ?
[ Adam  Nov 28, 2015 ]
1 answer
A
Thanks for your question. For information on selecting the best sub for your amp 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 models and help you make the best choice for your system.
[ Krissy  Nov 29, 2015 ]  Staff
Q
Will this amp run 4 6x9 3 way 2 ohm speakers ?
[ kevin  Nov 17, 2015 ]
1 answer
A
Thanks for your question. For information on selecting the best amp for your speakers 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  Nov 17, 2015 ]  Staff
Q
What size fuse for the power wire would be used for this? Looks like it has 40A of draw, so anything around 40A correct?
[ DanB360  Jan 21, 2015 ]
1 answer
A
I forwarded your question to an Advisor and they responded with the following: For the Alpine MRV-F300 50W x 4 Car Amplifier you will need a 40 amp fuse or larger. If you would like to discuss further you can contact an Advisor directly by phone (1-800-324-9695) or online chat.
[ Krissy  Jan 22, 2015 ]  Staff
Q
It's this a mono block amp?
[ isaac  Jun 05, 2014 ]
4 answers
A
No, this is a class D 4 channel amplifier. However it can be bridged to run 2 channels to 2 woofers, or - as I have done - you can have front 2 channels @ 50 watts each and the other pair bridged to woofer. I have it hooked up to 2 6" polk 2 way door speakers, and the rear channel bridged mono to my Rockford fosgate 10" woofer. And it really ROCKS !!
[ Daniel  Jun 08, 2014 ]
A
This is a four channel amp (2 stereo pairs) and you can bridge either pair to get mono. I'm not entirely sure what you mean by block. I run a setup with 3 way separates on 2 of the channels and have the other two bridged to run a dual 12" sub at 4 ohms in mono. It does the trick.
[ Charlie  Jun 05, 2014 ]
A
no
[ GARY L  Jun 05, 2014 ]
A
No this is not a mono block amp. This amp Handles up to 300W maximum power @ 4 ohms bridged (150 x 2) Up to 75W RMS power per channel @ 2 ohms and up to 50W RMS power per channel @ 4 ohms. The mono-block version is the Alpine MRV-M500
[ Michael  Jun 05, 2014 ]
Q
What's the difference between this and the Alpine Mrp f300?
[ me  Apr 10, 2014 ]
1 answer
A
Thanks for your question. For information on comparing two or more models 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 and help you make the best choice for your system and your budget.
[ Krissy  Apr 11, 2014 ]  Staff
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