Question about Alpine MRD-M301 Car Audio Amplifier

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Amps displays the word curr

Stuck safe

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? The amplifier has been shutdown due to excessive current. ? Find and eliminate the cause of the excessive current, then turn the power off then back on from the remote control unit.

Posted on Jun 10, 2009

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Have you disconnected the inputs and outputs? try that if problem persists you have a solder bridge internally which can only be repaired by authorized repair center if your amp is knackered either repair it or buy a new one at wholesale from this site:
www.godspeedaudioheaven.com
for all your needs also good place to make cash!

Posted on Feb 06, 2009

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I have an alpine mrd-m1001 getting curr message ho do you reset the amp


Hello deeprajm,

Shorted or low impedance outputs can cause the "CUR" display. Power down everything and remove the speaker wires. If it will then power up without the display, the problem is probably a short in the speaker wire or voice coil, or the impedance load is too low. If there are multiple subs, reconnect them one at a time to isolate the bad one and then correct the problem. If the amp works properly with either of the subs but not both, rewire the subs for a higher final impedance.

If the amp still displays "CUR" with the speakers disconnected, there's most likely an internal fault that requires component level repair.

Hope this helps.

Aug 01, 2009 | Alpine MRD-M1001 Car Audio Amplifier

1 Answer

No sound is coming out


Hello christheline,

First make sure that the amp is powering up properly and that the input and subwoofer(s) are connected.

Check that the amp is not in "safe mode".

1. Press the MODE button.
Press the UP or DOWN button until “9” is displayed.
2. Press the ENT button.
3. Press the UP or DOWN button until “9-1” is displayed.
4. Press the ENT button.
5. Use the UP and DOWN buttons to turn safe mode ON.
6. Press the ENT button.

If this does not work, either the input from the head unit, the subwoofer(s), or the amp itself is probably defective.

Hope this helps.

May 28, 2009 | Alpine MRD-M300 Car Audio Amplifier

1 Answer

My alpine amp displays CURR and nothing coms out!This happened after i was screwing the speaker wire in and I touched the amps chasis and it made a spark. I opened it up I did not see anything wrong with...


According to an Alpine owner's manual, for that type of amp, you should be able to remove power from the amp, then reconnect power to reset the error. If it doesn't reset, either there is another short in the wiring or the amp has permanent damage and needs repair.

Mar 15, 2009 | Alpine Car Amplifiers

2 Answers

Amp displays the letters curr


have you disconnected all inputs and outputs on amp and retried starting it power only? if so your amp has an internal solder bridge and must be repaired by authorized repair center. Repair it or replace it at wholesale price from www.godspeedaudioheaven.com

Jan 31, 2009 | Alpine MRD-M301 Car Audio Amplifier

2 Answers

Alpine MRD-M301


you could have a bad ground or the power wire could have a short i would start there

Jun 25, 2008 | Alpine MRD-M301 Car Audio Amplifier

2 Answers

Alpine mrd-m501 amp


Disconnect the speaker wires from the amp, then try it again. If the error message doesn't appear, try connecting the speaker wires back to the amp one by one.

The error message is due to some sort of overcurrent in the amp. If the error does not go away when the speaker wires are disconnected, the issue is most likely with the amp itself and will need professional repair.

Mar 18, 2008 | Alpine MRD-M501 Car Audio Amplifier

1 Answer

Car audio 'safe'


'SAFE' Is displayed because the radio is protected by a 'CODE'
The more wrong codes you enter the longer the word 'SAFE' will remain on the display... Look through all your paper work & try to find the 4 digit 'CODE'... eg: 2456 this can then be entered by pressing the 12456 preset buttons.

Failing that you will have to go to a audi dealer they will be able to get it from a database or buy a aftermarket stereo.

Dec 19, 2007 | Rockford Fosgate 25 To LIFE Punch 150...

2 Answers

Negative speaker output touched chasis of amp.


check all fuses on the unit, pull them all.
look for a way of resetting the amp.

LEAVE THE MAIN FUSE OUT TILL THE INSTALL IS COMPLETE!!!

that way you wont short a screw driver across the terminals on to the chasis.

Dec 11, 2007 | Alpine MRD-M301 Car Audio Amplifier

1 Answer

Lights on, nobody home


Appears to be an issue with current. Is the speaker the correct impedance for the amplifier ? Have you confirmed there are no short circuits in the wiring ? I'm not familiar with this particular product,

The alpine catalogue gives recommended amp/speaker combos. If you don't have an aplpine sub, then look at the specs and find a similar one. You may be trying to load the amp too heavily and it will protect itself.

Nov 18, 2007 | Alpine MRD-M300 Car Audio Amplifier

1 Answer

My KAC-X812D amp is stuck in safe


From what you are explaining here, it suggests that there is an internal problem with the amp (Blown mosfets, pre-amp etc.) I suggest taking the amp to an authorised service centre.

Aug 28, 2007 | Kenwood eXcelon KAC-X812D Car Audio...

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