Question about Alpine MRD-M1000 Car Audio Amplifier

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No amps to the amp

Everything works but i get no amps to the amp

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  • Anonymous Jun 22, 2008

    Do i need a controller to set up my amp? everything works once wired up but no sound comes from the subs. The amp powers up...is there a safety device or something?

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Is the remote turn on wire run corectly? how are you getting the signal to your amp? RCA cables or speaker wires? what is your amp rating vs. speaker rating?

Posted on Aug 12, 2008

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Are the fader and balance on my car stereo supposed to work after a new stereo amp has been installed ?


if everything was correctly installed then yes, but depending on what was used, the installer may have opted for a custom configuration. however, the fader and balance really should work.

Jan 07, 2014 | Car Amplifiers

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My Alpine MRP-M650 Amp is acting up. When I start the car, if the volume is at low, the subs don't work. But when I turn up the volume, they eventually kick in, then I can lower the volume. But when...


There are a lot of things that could cause this issue ...
1. Your amp requires more power than it gets when you start your car, and needs to charge up before it can work. If this is the case, you should be able to give your stereo about 5 minutes to warm up at low volume and it should come on. This happens a lot with amps with built-in capacitors (capacitors give you stunning, instant kick when working, but require a bunch of power to initialize). If you wire a bypass switch for the power to your amp and bass components, you can turn it on separate from the rest of the car and allow it to charge before you start your car (just be careful to turn it off when you are going to be away from your car for a while since this will allow your system to drain your battery).
2. Your amp might be set incorrectly for handling the system you are running. If your Ohms do not match up exactly (8 ohm speakers with a 4 ohm amp -- it's the "Impedance rating") then the system should not work at all, or should burn out the amp ... but with a jury-rigged system it can work. If this is the case, I recommend getting a new amp that matches your speakers.
3. Depending on the amp, there might be a volume-based cutoff that is working improperly. Turn on the car with the stereo at low volume. While the speakers are still not working, check to make sure that the amp has power, and seems to be functioning correctly. If everything seems like it's on the up and up, but the speakers are not working, try changing the volume-filter options on your amp.
4. I put this last because it seems like you know what you are doing with the system setup, but it is possible that you have a bad connection between the speakers and the amp, or between the stereo and the amp. There could be a loose connection somewhere (either inside the amp, between the amp and the speakers at the jack, or between the stereo and the amp at the jack). If this were the case, everything would look perfect from a visual inspection, but there could be a tiny space, or corrosion in a connection. Turning the stereo up to a high volume could then bridge this short circuit, and the electric force could magnetize the connection shut, allowing you to then turn the stereo down with the working connection. The best-case scenario here would be an external wiring issue, where you can clean any corrosion off the connections with an eraser, and reconnect everything tightly fixing the problem. The worst case would be a short WITHIN the amp, which would have to be repaired by someone with a lot of time and a circuit tester -- in which case you might be better off trading the amp in for a new one.

May 26, 2011 | Alpine MRP-M650 Car Audio Amplifier

1 Answer

Subs and amp sat in my garage for a year. I just


check your subs by connecting them straight from the stereo. If they work then there is an issue with the signal comming from the stereo through the rca cables to your amp, check those. Try another amp if you can with those rca's or test the amp with a friends car, either way try to rule out everything until it points to the problem.

Apr 17, 2010 | PPI PCX-2200 Car Audio Amplifier

2 Answers

Amp keeps blowin the two 30amp fuses on the amp.


Make sure that the speaker wires are wired correct at both the amp and the speakers......otherwise it sounds like the typical death of a power acoustik amp (great amps, but prone to a premature death)

Mar 29, 2009 | Power Acoustik GOTHIC OV2-1200 Car Audio...

1 Answer

My fiance purchased a pair of P1 RF speakers and their matching amplifier. when he hooked them up in our car everything worked well. we unhooked everything and then ran all the wires and re-hooked...


well let me see i can bet something happened so what happened??? i bet the amp is not working right? hahaha here's my sign right!!! all right enough fun. is the light on the amp coming on? you might also need to turn the key all the way to the run position, if not wired exactly right then amp will only power up when vehicle is running or key is in the run position i need to know this before we really go any further. let me know so i can get you up and running quickly.

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2 Answers

Visonik 350watt Amp Doesnt Come On....


With your multimeter set to DC volts, the black meter probe on the ground terminal of the amp (not on the point where the ground wire connected to the vehicle) and the head unit on (so the amp will have remote voltage applied), touch the red probe alternately to the B+ and remote terminals of the amp. If the voltage is below ~11 volts, you need to check the wiring feeding whichever line is too low.

Let me know if you have any other questions.


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1 Answer

Car audio


hi, your amp seems to be getting power but the cables might be wrong so it's not getting enough power. the light on the amp should be green if everything is going well. are you sure the cables are suitable for your amp?

Sep 11, 2007 | MTX RT202 Car Audio Amplifier

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