Question about Alpine MRP-M350 Car Audio Amplifier

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Blinking Led power light

I have the Alpine MRP-M350 Amp hooked up to one 12inch JVC subwoofer. Lately I noticed on and off sound coming from the subwoofer. And just today I experienced no sound and I inspected the subwoofer and noticed the amp has a dimming and blinking blue Led light. I read some posts from this site and you said its in safe mode due to the transistors So what can I do from here or can anything be the problem? Thanks

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Re: Blinking Led power light

I have a alpine MRP-M350 700 watts class D... i will ask if it can support 2 subwoofer a 1200 watts 10" JBL subwoofer?

Posted on Jun 08, 2007

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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.

Mar 08, 2011 | Alpine MRP-M350 Car Audio Amplifier

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I have a Alpine MRP-M350 amp and then I have 2 10 Kicker Freair F10A Subwoofers. What's the best set up for this combo?

From the plus(+) of the speaker output on the amplifier run a cable to the plus(+) on the voice coil of the first subwoofer then follow thru with the same cable to the plus(+) of the other subwoofer.
From the minus(-) of the speaker output on the amplifier, run a cale to the minus(-) of the first subwoofer then follow thru with the same cable to the minus(-) of the other subwoofer.
This will make your amplifier run @ 2OHMS and provide you with 350 Watt RMS which will work fine even if you run your subwooffers free air(without a box))
hope this helps

Feb 06, 2011 | Alpine MRP-M350 Car Audio Amplifier

1 Answer

I have two 12 inch infinity 1250w subwoofers. Will my alpine v-power mrp-m350 amplifier power the subwoofers effectively?

You dont specify the model or RMS power of the subwoofers so i am not sure if that power is RMS or maximum.
If it is RMS, then a BiG no would be the answer. Even though the MRP-M350 will drive the subwoofers and will give you a fair sound as well, it not drive both of them effectivley. After all it's only 350WATT (the amp)RMS trying to push a 2500 RMS (the subs) target, so do the maths, is that a fair fight?
hope this helps.

Jan 27, 2011 | Alpine MRP-M350 Car Audio Amplifier

1 Answer

I haw alpine mrp-m350 amplifier how many sub can i

Hook up the MRP-M350 to one 4-ohm sub, and you get 200 watts RMS; connect a second 4-ohm subwoofer and the power output increases to 350 watts! All that juice means that your subs won't just be loud, they'll sound clean and thumping.

Apr 08, 2010 | Alpine MRP-M350 Car Audio Amplifier

1 Answer

No power to the amp

hi there
its up to you the remote wire is just another power wire.....the remote wire can be by passed but every time you turn off your car you will need to unhook the 12v amp power wire from your cars battery (if you decide to do it this way)..........or you can hook up the blue wire from the back of your CD/DVD unit what ever you are using and every time your stereo turns off your amp will too..........
hope this has helped

Mar 08, 2009 | Alpine MRP-M350 Car Audio Amplifier

1 Answer

No sound from subs.

Sounds like you have the Remote turn on hooked to constant 12V instead of a switched power.
The Blue/White wire off the module should go directly to the amplifier remote terminal.
If this has a constant 12V when the key is off, the module is defective and needs to be repaired/returned.

Jan 03, 2009 | Alpine MRP-M350 Car Audio Amplifier

1 Answer

Weak rear left amp output?

hey whats up bud i got an ALPINE V-POWER MRP-M350 these amps are great go to a walmart od any music shop buy a set of R.C.A cables that plug into your amp than that Ys off to a single connection its a male cable that run a set from the back of your cd player heres the trick ONLY PLUG YOUR BLACK COLORED RCA INTO HEAD UNIT MAKE SURE YOU RAP THE RED ONE WITH TAPE OR GET A RUBBER CAP TO PUT OVER IT SO YOU DONT GET ANY STATIC FREQUENCIES COMING OUT OF THE RED ONE THAN RUN THAT SET TO YOUR AMPLIFIER AND AGAIN ONLY TIE INTO THE LEFT CHANNEL OF YOUR AMPLIFIER.... Hope you know wnat i mean by that Y adapter ther is 2 prongs that tie into amplifier than it splits into 1 were your rca cables will plug into just that one thats how you bridge these confusing amps.... TRUST ME BOTH SUBS WILL SLAM HARD I RUN 2 JL AUDIO OFF OF MINE NO PROBLEM.... WRITE BACK TO ME IF YOU HAVE ANY PROBLEMS OR WHEN YOU GET IT HOOKED UP MY EMAIL ADDRESS IS hope to hear from you soon...

Dec 27, 2008 | Alpine MRP-M350 Car Audio Amplifier

1 Answer

Alpine MRP-M350 amp intermittently turns off

Could be your speakers are breaking down inside and shorting out. Measure the ohms of the speakere with them unhooked form the amp. They should be about what the manufacturor rated them at. (useually 4 ohms). If they are failing, the number will be lower. They may also short when power is applied- and that wont show with the meter test.

Try different subs.

May 26, 2008 | Alpine MRP-M350 Car Audio Amplifier

1 Answer

Not enough bass

its prolly the deck, did you try turning the alpine's input gain controls up...

its not the wiring, if the wiring was insuficient, it would just melt...

you might also see if you could adjust the bass frequencies or crossover frequency, the crv might just have a different resonant frequency then the rav 4

May 16, 2008 | Alpine MRP-M450 Car Audio Amplifier

1 Answer

Alpine mrp-350 amp

1) If you bridge on a non bridged amp your sound will be horrible as they sine waves comming out of the two teminals will be different... I suggest removing the bridge. 2) The gain knob is to adjust when the amp will reach its max volume with respect to the sterio;s volume. 3) the LP filter is a Low Pass filter and its purpose is to eliminate the higher frequencies that do not sound all the well when played over subwoofers.

Feb 18, 2007 | Alpine MRP-M350 Car Audio Amplifier

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