Question about Alpine MRP-F300 Car Audio Amplifier

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Wiring diagram for Alpine MRP-F300

I want to connect 1 subwoofer and 2 full range speakers to the amp. What are the settings and wire configurations on the amp?

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From the Crutchfield site:

Owner's manual

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

Posted on Sep 05, 2008

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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.

Jul 25, 2009 | Alpine MRP-F300 Car Audio Amplifier

3 Answers

Cuts out at high volume.


and that's fine with the ohm load. But if you have them wired all together or in parrelel it changes the ohm load. You need to wire them all together in parreallel or in series to get the correct ohm load. Check the wiring diagram at www.the12volt.com to see what your options are. the mrp amps are at a 2 ohm load smallest stable so makesure they are wired above or right at

Jun 08, 2009 | Alpine MRP-F300 Car Audio Amplifier

2 Answers

What is the best way to connect 4 speakers and a sub to a 4 channel amp.


I would connect the 4 speakers to channels 1-2 in stereo with high pass filter. Bridge the sub to channels 3-4.
A thumbs up would be greatly appreciated if this answer is helpful to you. best-way-connect-4-speakers-sub-4-zb4bomd1rt4qms0dqd12kkt2-3-0.jpg

May 01, 2009 | Car Audio & Video

1 Answer

How to wire 2 ohm 2 12ich alpine type r's to box terminals?


Dual 4 ohm subwoofers can only be wired @ 1 ohm, 4 ohm or 8 ohm.
2 ohm mono load is not possible.
You will need to use (1) subwoofer to get the 1000W out of the amp.
Wire both positives on one sub to + on amplifier and both - on the same sub to - on amplifier to give the amplifier a 2 Ohm load.
Add a second amplifier, or buy an amplifier that is 1 ohm mono stable.
You can wire both to the amplifier at 4 ohms 600W, but they will share the power and only see 300W ea.

Jan 12, 2009 | Alpine Type-R SWR-1242D Car Subwoofer

1 Answer

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.

Dec 11, 2008 | Alpine MRP-F300 Car Audio Amplifier

2 Answers

Wires


Hi Gott Mudd,

 

I can relate to feeling it in the bones. You got the stuff to do it.  You should try the Alpine MP3 head units with bass boost, those are bad to the bone.

 

Wiring: 

 

Amp to Speaker I like to use the code VC for Voice coil, and AO for Amplifier output.  Also + for positive.  If I say VC1-, I am referring to the first connector starting left to right on the Alpine Sub. Now I have not seen a Kicker KX1200.1 amplifier.  All I see are MRA, MRP, or PDX prefix on the part numbers. So take what I am saying as a guess. You may want to revisit looking at the model of the amp to be sure your giving the right information.

 

We are going for  2 Ohms. Paralleling the two subs, not the voice coils. The voice coils will be series.  Bridge the amp if necessary to get mono channel. only using AO+ and AO- for output.

 

AO+ to Sub1VC1+

AO+ to Sub2VC1+

Sub1VC1- to Sub1VC2+

Sub2VC1- to Sub2VC2+

AO- to Sub1VC2-

AO- to Sub2VC2- 

 

Set your Crossover to LPF

Adjust the bass gain down to lowest until you test.

Set the Frequencies to midrange between 40 and 100hz  

 

Your box can be ported or not. It depends on the space your have.  If you do not have much room, go Enclosed and build a box that the inside space is less than 1 cubic foot.  Make sure you give barely  enough clearance for the speaker to fit.  If you have room, Go with a box and vent it with a 3 inch Vent tube 10 inches long.  

Oct 15, 2007 | Alpine Type-R SWR-1242D Car Subwoofer

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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

Nov 12, 2006 | Alpine MRP-M450 Car Audio Amplifier

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