Alpine MRP-F300 Car Audio Amplifier Logo

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RonM Posted on Aug 15, 2017

Is there a reset for the alpine mrp-f300 amp?

I am initially connecting my amp. I have everything hooked exactly as the book says. Ground to battery, all speakers hooked up and phased correct. Lead from antenna power to amp. RCA cables coming out of head unit (Kenwood 248).and plugged up. When I connect the power lead to the battery, I got a big spark and the amp does nothing. I did not hear a popping noise other than the spark. Help?

4 Related Answers

Duncan

Mike Duncan

  • 219 Answers
  • Posted on Apr 02, 2007

SOURCE: amp won't turn on don't know if amp is fried

Very possible that you have a blown power supply in the amp. If you are running a mono amp then there is a very good chance that you have loaded your amp with too low of a speaker impedence and fried the power supply and maybe the output section of the audio area. Hope this helps.

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Anonymous

  • 631 Answers
  • Posted on Sep 05, 2008

SOURCE: Wiring diagram for Alpine MRP-F300

From the Crutchfield site:

Owner's manual

You'll use fig.8 for the front speakers and fig.9 for the subs.

Anonymous

  • 124 Answers
  • Posted on Jan 30, 2009

SOURCE: Alpine MRP-M500

You need to check the Fuse on the Power Wire and check the ground wire to see if has loosened up. Also check Power Wire as well.

Hope you see what you are your looking for! Good Luck!
If you have any more problems let me know.

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Anonymous

  • 133 Answers
  • Posted on Jul 06, 2009

SOURCE: Alpine mrp-m450 Amp won't stay on

Sounds to me like it might be the remote turn on because the first time i installed it, it did the same thing, and i found out that there is two blue wires coming out the stereo, one with a white stripe, i connected it to the blue wire, and it didnt work, then i connected it to the blue and white wire, and it worked. Well hope this solves your problem, goodluck.

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Related Questions:

0helpful
1answer

Alpine MRP-M350 no speaker output

Check the ground wire. If you have a bad ground, you will not have any speaker output. The ground should be solidly connected to the vehicle chassis in a paint-free location. Check the live power wire as well, it should be connected directly to the battery. Then check the speaker leads to the amp. They should not be in contact with the vehicle chassis, or (at the input slots on the amp) with each other.
1helpful
1answer

I just got the MRP-F300 amp installed today and the rear-left speaker completely stopped working shortly after the installed. There is no cracking, hissing, or any noise whatsoever coming from that...

not usualy if you were running them before without the amp the speaker could have still easily blown. with just the deck running the speakers you can clip the sound and damage the coils hook up and amp then you force the power through an already damaged speaker finishing it off try another speaker. or if it was bought used amp may be no good the previous owner probably noticed it cutting in and out and sold it before it fried. or the deck is old and yes it is a possibility the radio went bad. if you used cheap rca cables yes it could be bad as well.
0helpful
1answer

So, everything is hooked up, the amp is getting power, but the problem is getting power from the amp to the sub, any idea what the problem could be?

Well the two main things that i think of is that your fuse in your battery wire is blown. Or that your ground wire isn't all the way connected
2helpful
1answer

MY AMP KEEPS BLOWIN THE FUSE...i CHANGED THE GROUND AND HOT WIRE TO BIGGER GUAGE WIRE AND THE PROBLEM STILL THERE ..........THE AMP IS A ALPINE MRV-307

Hello creelb22,

Fuses usually blow because of a short of too much current.

Test your wiring (including the speaker wires) and make sure they are not shorting or grounding against the vehicle chassis. Also make sure that the speaker voice coils are not shorted.

Hope this helps.
0helpful
1answer

Speakers cut out when i turn up volume.

check your ground if its not grounded good your amp will power down!
0helpful
1answer

Alpine mrp-f300 cuts sound off when volume is turned up.

the problem when someone become a car audio fanatic is, we want to hear BOOMS but we are not sure how many watts the amplifier can handle, besides that theres one very important thing that most of the installers don't know. its called ohms law (not a joke) that law tells you everything about how to measure the ohms marked on the speaker labels and also the way that you connect the speakers (theres two models; serial circuit and parallel circuit)

every single movement that you make on the connections tells a different story, and if you over load the amp it will auto protect.

i suggest you to set the level at least at 60% so you don't make any damage to the internal components, and don't forget to study ohm's law because a really professional installer knows it and well, they do the matt to get the best performance.
0helpful
1answer

Wiring diagram for Alpine MRP-F300

From the Crutchfield site:

Owner's manual

You'll use fig.8 for the front speakers and fig.9 for the subs.
0helpful
2answers

Alpine mrp-m450 Amp won't stay on

im having the same problem with my amp, I took it to best buy and they said the amp was recieving power and recieving signals from the deck and i had everything hooked up right but that in the circuit board all the connections were blown, meaning i have a blown amp, i hope this isnt your problem but it definetly sounds like it. GOODLUCK
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