Question about MA Audio EHO152 15" 5000 Watts Subwoofer Car Speaker

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Amplifiers my amp an ma audio m686i keeps going into protection mode i think its fried how can i fix it the product in the product info is not the product i have my is an ma audio m686i 2 channel competition amplifier

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It sounds like you've got too little impedance on it. How are the speakers wired? Are they in series (one speaker per channel) or are they in parallel (speaker 1 neg wire hooked up to channel 2, and speaker 2 neg wire hooked up to channel 1)? Or do you have a single speaker bridged (pos wire on one channel, neg wire on the other)? Often, an amp going into protection is a result of too much current draw, which happens when you're running a 2-ohm load on an amp that isn't rated to handle that (many are only OK at 4-ohms, which you'd have with series wiring). Let me know how you have the speakers wired and we'll go from there.

Posted on Aug 07, 2008

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1 Answer

How do i know if my amp is fried


If it keep on going into the (Protection) Mode, Minimiun $150 end up to have it (Repaired)

Nov 11, 2012 | Jl Audio E4300 Car Audio Amplifier

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I have a ma audio hk-602sx and my protect light wont go off and somthing is clicking inside and as it clicks the protect light blinks.


Disconnect the speakers and then try it again...there may be a shorted speaker or wire if the amp comes out of protect after you disconnect the wires...if the amp stays in protect after you disconnect the wires then there is a problem inside the amp with the circuitry and it will need to get serviced by an electronic tech

Jan 23, 2011 | MA Audio HK602SX Car Audio Amplifier

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Amp is in protect mode


If you have'nt fixed your amp by now I thought I'd tell ya a couple of things why it's going into protect. The basics. Blown subs, bad power suply or mosfets, and blown output transistors/mosfets. Still need help let me know. I repair amps for a living and i'm the cheapest you'll find and honest. I also give the longest warranty. I'm tired of other people rippin people off on repairs. Let me know.

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My amp automatically goes into protect mode


There are 4 reasons an amplifier tries to protect itself.

Overheating - thermal shutdown.

Over Impedence - The subwoofers installed are not configured into a load the amplifier can handle.

Output is grounded - a positive wire strand may be touching the ground terminal - a wire may be shorted, or a speaker voicecoil is blown.

Intennal problem - Output on amplifier blown, or some other component has failed.

Check your wiring to the amplifier again - if all is good - disconnect the speakers and try to power on. If the amplifier turns on normally - test the speakers for blown coils.

If the amplifier still goes into protect mode - the problem is internal and needs professional repair.

Thanks for using FixYa - a FixYa rating is appreciated for answering your FREE question.

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1 Answer

I think ma kicker kx1200.1 amp is blown or ma kicker L7 are gone


that would be the amp. sorry to say. when a wire crosses over, it sends a shock through the amp, there are a few things to try just to see if you fried the amp. the first thing to try is to move your ground to a different location. second thing to look at would be the fuses. alot of times the fuses will blow at the slightest shock. the amp will still turn on if you have an amp with 2 fuses, it just wont be getting all the power it needs, which could be causing your problem. also, it is worth the hour and a half to mount everything down in your vehicle. you might check the kicker website, because i have herd rumors that kicker offers a lifetime warranty on almost all of their products. best of luck, and i hope you didnt fry your amp.

Apr 09, 2009 | Kicker KX1200.1 Car Audio Amplifier

1 Answer

Amp


The amplifier may be bad with a malfunctioning circuit inside. Also, it could be getting low voltage...make sure that the amp is getting 12 volts or more at the constant and remote leads. If it is connected to speakers, make sure that they are measuring more than 2 ohms (using a voltmeter). A good stereo shop can check this for you too.

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Why does my amp stay in protect mode?


The most common reason an amplifier goes into or remains in protect mode is shorted output transistors. To eliminate other possible reasons for it to go into protect, read the following page.

Troubleshooting - Amp in Protect Mode

Aug 03, 2008 | DHD NTX-2139 Car Audio Amplifier

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DUB 2502 550WATT


check you rca in put into the am with out spkr wire connect to amp if protection light still on amp is damage

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MA Audio HK4000D please help me ?


Turn the system off and disconnect the speakers. Turn the system on. If the amp still goes into protection mode with no speakers connected, then most likely the output transistors are bad. If the protection light is off, hook up one sub at a time until you find the one that is causing the problem

May 21, 2008 | MA Audio HK4000D Car Audio Amplifier

2 Answers

Amp heats up and goes into protect mode


Hi Saint108. You're describing it well, and i know what the problem is already. The MA audio amp, can't hold with a 2 ohm load. It's too low for that amp, that's for sure. Those are budget amps and they are not well built enough to handle low ohm setups like that. It's overheating and there's no ways around it.. Other than wiring your subs differently ! Just wire your sub directly (not in parallel) in a 4 ohm load, you will notice it will stop overheating that much. Do it quick, you'll most likely fry your amp giving it such hard work !! The HUM you're hearing could be related to it also. Try that, and keep me posted on the status. Thanks ! Cheebster.

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