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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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.
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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
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.
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.
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.