Question about Alpine MRD-M1000 Car Audio Amplifier

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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?

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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

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Posted on Jan 02, 2017

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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...

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I need to know how to hook up an alpine v12 amp 2 ohm i have two tens


Hi there,

This really depends if your 10" subs are 4 ohms each or 2 ohm - for this exercise, I'm presuming they are 4 ohm each.

You already know your amp can deliver 600W RMS (@ 2ohm), so you need to be careful you do not exceed the maximum RMS input power of your subs.

Normally you would wire subs in "parallel", which would reduce the circuit load to 2ohms - however, the 600W RMS power may be too high for your subs to handle.

In this case, it may be safer to wire your subs in "series" - this will increase the circuit load to 8ohms, which will effectively decrease the amps RMS power output.


Cheers,

Sep 05, 2011 | Alpine MRD-M605 - V12 MONO AMP 600WX1 RMS...

1 Answer

I wired everthing up and put the hot wirer back on and the amp wont come on fuze r all ok


check your ground, make sure you are going to a good ground, a bad ground is just like having the positive disconnected.

Aug 07, 2010 | 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

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My alpine v12 turns on but no sound


no you don't have to hook up both of the power terminals. but should have it hooked up so you get the proper power to the amp. use a disubution block with two 8 gauge wires.

do you know if the radio's rca jack's are good? have you ever had another amp in the car? if it worked before try new rca's from the radio to amp. recheck all connections from amp to speakers and make sure no wires fell off.

Sep 22, 2009 | Alpine MRD-M605 - V12 MONO AMP 600WX1 RMS...

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

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