Question about Alpine MRD-M1000 Car Audio Amplifier

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Voltage drop my voltage meter drops dowm from 13.8 to 11.0 when the bass hits and it stays there

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You're drawing a ton of power from the car's electrical system. Get a stiffening capacitor and put it in on the amp's main power cable. If you're draining the car that badly, make sure to get at least a 1 farad cap, bigger if you can, and until you do, turn the gain down and don't run so much bass - you'll kill your battery in the meantime.

Posted on Jul 29, 2008

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Hey names Nathan and I just got a kicker ZX300.1 and a I connected it to my kicker comp 12 and an alpine cde 102. So the problem is that the protection light flashes with the beat of the bass at high...


Your speaker wires could be shorting to ground at the subs or at the amp. You could be experiencing a drop in voltage when the bass hits. Check your power connection at the battery, fuse and amp. Check your ground connection at the chassis connection and at the amp.

Aug 19, 2012 | Car Audio & Video

1 Answer

Green light turns red on hard notes with kicker 750 mono amp


First off, never, ever replace a blown fuse with a bigger one (especially one that is almost twice as big) unless it's an absolute emergency. Most of the time, the reason a fuse blows is because of a problem with the device (in this case, the amp). By installing a larger fuse, there's a very good chance the problem will become permanent (i.e. busted amp).

The amp could be going into an overcurrent mode when the bass hits and power cycling itself to try and reset the problem. If this is the case, take it to a local electronics repair shop and see what they can do.

It's also possible the input voltage to the amp is dropping too low during the bass hit, making the amp restart. Try putting a 1.0F or higher capacitor on the battery to buffer the power during the bass hits.

Mar 16, 2009 | Kicker (ZX750.1) Car Audio Amplifier

2 Answers

Infinity 1600a cuts out wit real low bass when turned up load



With your multimeter set to DC volts, the black meter lead on the ground terminal of the amp (not on the point where the ground wire connected to the vehicle), touch the red lead alternately to the B+ and remote terminals of the amp. If the voltage drops below ~11 volts on either terminal when you drive the amp hard, you need to check the wiring feeding whichever line is dropping too low.


Nov 16, 2008 | Infinity Reference 1600a Car Audio...

1 Answer

Amp goes in and out.


THE BASS GETS LOUDER AND LOWER.COULD BE A VOLTAGE DROP.IF YOU PLAY AT LOWER VOLUME WITH NOTHING ELSE RUNNIG,LIGHTS,AIRCONDITIONER,THOSE THIS STILL HAPPEN? THOSE YOUR FRONT HEADLIGHT BLINK WHEN AND LARGE BASS NOTE IS HIT?R U USING A CAPICITOR INLINE WITH THE BATTERY,I HIGHLY SUGGEST AMPS THEAT PULL DIRECTLY FROM BATTERY CAN CAUSE DAMAGE TO THE IC IN THE ALTERNATOR.RATING PLEASE ,GIVE MORE INFO

Jan 29, 2008 | Phoenix Gold Octane-R 15.0:1 Car Audio...

1 Answer

No sound from the amp


With your multimeter set to DC volts and the black meter lead on the ground terminal of the amp, touch the red lead alternately to the B+ and remote terminals. If the voltage drops below ~11 volts, you need to check the wiring feeding whichever line is dropping too low.


If the voltage remains near or above 12v, disconnect all speaker wires and signal cables from the amp. If it powers up and the light stays on, the wiring needs to be checked. If it still shuts down, the amp likely has at least 1 blown output IC.

Nov 30, 2007 | Pioneer GM-X372 Car Audio Amplifier

1 Answer

Amp cuts out and back on 30 or so seconds!! Volume has no impact


You need to check the B+ and remote voltage on the amp when it cuts off (assuming that you can recreate the fault).

With your multimeter set to DC volts and the black meter lead on the ground terminal of the amp, touch the red lead alternately to the B+ and remote terminals as the amp shuts down. If the voltage drops below ~11 volts, you need to check the wiring feeding whichever line is dropping too low.

Nov 29, 2007 | Kenwood KAC-7202 Car Audio Amplifier

3 Answers

No low bass


Check the wiring of the woofers. If one speaker is wired improperly, it can cause the loss of bass and will make the woofers bottom out easily. Check inside the enclosure at the terminals and at the speaker.

Oct 28, 2007 | Jensen LXA300 Car Audio Amplifier

1 Answer

JL 250/I


HI J1964,

 

The biggest thing is you have grown more accustomed to the strong bass. And your driving it harder. The battery and length/size of the + and - power cable cannot fully fill this order.  This is why the capacitor are hitting the market.  Get you a 1 Farad capacitor and install it to see the diff.

Oct 18, 2007 | Jl Audio 250/1 Car Audio Amplifier

2 Answers

Amp cuts off


You may have a problem with the power source feeding the amp. You need to check the voltage across the amplifier's B+ and ground terminals when the amp is playing/cutting off. If it's dropping below ~11 volts, you need to determine why it's dropping so low.

Sep 18, 2007 | Alpine PDX-1.1000 1000W x 1 Car Amplifier...

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