Question about Alpine MRD-M1000 Car Audio Amplifier

1 Answer

MRD-M605 current protect mode

I just had installed in my boat a Kicker 350.4 to run interior and tower speakers, plus the Alpine MRD-M605 rated at 600+ RMS @ 2 ohms to run a Kicker L5 12" Solarbaric in a ported box, rated at 600 RMS @ 2 ohms, so it should be "matched". Took the boat out on Sunday and cranked it up with NO problems...sounded great. Took the boat out Monday and cranked it up again...ran well for a while and then went into current protect. What would cause this and what are possible solutions?

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An expert who has answered 1,000 questions.

  • Master
  • 1,139 Answers
Re: MRD-M605 current protect mode

Well You should make sure that the ground is good, and that no moisture got into the unit. I would suggest getting a schematic and testing to make sure that the voltage levels were correct on the unit. and the do a signal trace to see where the audio signal discontinues.

Posted on Sep 08, 2007

Add Your Answer

0 characters

Uploading: 0%


Complete. Click "Add" to insert your video. Add


3 Points

Related Questions:

1 Answer

I have a comp s 12 2ohm kicker and a comp vr 12 dual 2ohm kicker how do i wire these to stay at 2ohms to the amp

you can wire them to be at 2ohm load you need two of the same speaker. its is very bad on the amp to run like that and you will not get a good bass sound because one will over power the other sound wise

Mar 23, 2013 | Alpine MRD-M605 - V12 MONO AMP 600WX1 RMS...

1 Answer

Is the alpine 3552 any good? I can't find any reviews.

alpine makes amaizing amps... as long as it's matched to the speakers/subs you are going to put on it this amp will last you a very long time... and it will put out amazing power... you won't be disappointed.

Dec 02, 2009 | Alpine MRD-M605 Car Audio Amplifier

1 Answer

How do you get it out of cur mode

Hello whatup_132,

If the M605 fails and displays "CUR", it means that there is excessive current to the amp.

The most common causes for excessive current draw is operating the amp into a lower impedance than it is rated to handle, shorted speaker voice coil(s), and/or shorted or grounded speaker wires.

The amp can operate into a load no lower than 2ohms. First power everything off and disconnect the positive amp power lead temporarily (easist way is to just pull the fuse). At this point you should ONLY have the ground and remote connected. Reconnect positive (insert fuse) and turn on the vehicle ignition and your head unit. If the amp still displays the "CUR" error, the output MOSFET's are probably defective and the amp requires repair or replacement. If it powers up normally, reconnect the speaker wires until you locate the faulty one, and then correct whatever is causing it.

Hope this helps.

Jul 17, 2009 | Alpine MRD-M605 - V12 MONO AMP 600WX1 RMS...

1 Answer

CUR display

Hello yte1771,

You can download the manual from Crutchfield.

The "CUR" display is an indication of excessive current and is most likely caused by too low impedance or a fault in the wiring or the amp itself. It's probably not your cap.

Hope this helps.

May 18, 2009 | Alpine MRD-M605 Car Audio Amplifier

1 Answer

Installing two amps

No, thats what you don't what to do. Even if you have 2 matching amps you don't do that. Every amp puts out different, and for 2 subs, you want to play at the the same time. If your only running 2 10's, I personal would just run the alpine (it's a mono amp made especially for subs) thats plenty for what you have. make sure you bridge them to get the full response. And your other amp i would use for your highs or mids, but run it @ stereo , which is 300 w @ 4 ohms. (Note: 600w @ 2ohms would be bridged and would play in Mono)

Building Competition stereo's is a big hobby of mine.

May 04, 2009 | Alpine MRD-M605 - V12 MONO AMP 600WX1 RMS...

1 Answer

CUR is showing on the display

The amp will reset when you cut the power off to it. Disconect bat for 30 sec and reconect. But to be honist with u if the wire jumped out and grounded some how during a high level, there is probley internal damage done.

Oct 17, 2008 | Alpine MRD-M605 - V12 MONO AMP 600WX1 RMS...

1 Answer

CUR showing on the display

This means too much current, find and eliminate cause of excessie current and turn power off, also possibe power and ground are not big enough .Recommend 4guage wires

Oct 17, 2008 | Alpine MRD-M605 Car Audio Amplifier

1 Answer

Alpine amp mrd-m605

The amplifier probably has shorted output transistors. If the amp gives the same error message with the speaker wires disconnected from the amp, the amp needs to be repaired.

Dec 30, 2007 | Alpine MRD-M605 Car Audio Amplifier

1 Answer

Mrd-m605 troubleshooting\

Yeah, how about you give us more info please.

Oct 26, 2006 | Alpine MRD-M605 Car Audio Amplifier

Not finding what you are looking for?
Alpine MRD-M1000 Car Audio Amplifier Logo

Related Topics:

72 people viewed this question

Ask a Question

Usually answered in minutes!

Top Alpine Car Amplifiers Experts

Tygh Duval
Tygh Duval

Level 2 Expert

290 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

6811 Answers

Steve Sweetleaf
Steve Sweetleaf

Level 3 Expert

1128 Answers

Are you an Alpine Car Amplifier Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides