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Car amp ok...i hooked up my amp and it works but no sound comesw from my sub and i looked at the power lite and it just flashes what can i do?

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This is a safty feature. disconect the speaker and try it again. if it still flashes you might have a blown output.

Posted on Oct 02, 2008

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1 Answer

Um the power light will flash then the protl. light will flash its all hooked up right but weird sounds coming out my subs.


Disconnect subs from output of amplifier and then turn on car and radio. Does amp stay on or go into protect? If it stays on then there is something wrong with the subs or how they are wired (series, parallel ) to the box and amp. If it still goes into protect then something internal with amp.

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I have checked all connections to my amp battery,head unit,remote or trigger wire,fuses,power cable,rca leads,ground wire,amp has a green led light on it indicating if it works ok,red if it`s not,light...


Your amp could be in protection mode! Sometimes turning up to high or wires touching will put in protection mode! It will have to be unplugged for a day or two to drain all power out of the memory. Leave accessorie/ignition wire hooked up, just not power and ground wiring. It should reset itself.

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Amplifier and sub installation in a boat.


norally grounding them in the same place is ok but it could just theres not enough power from the amp too power two subs try hooking up one and see if that gives you the sound your looking for

Jul 09, 2009 | Car Audio & Video

1 Answer

Amp goes dirctly into protect


ok well it could be two thing wrong your amp dont have a good ground or your amp is a smar amp and your subs must have to be hooked up so the power from the amp cn go to the subs so the amp can see that you do have subs hooked up to take it out of protect o and look at your fuses to to smal or to big will send it to protect to

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Just installed my cva-1004 in my truck and all connections are good get dvd picture but no sound do i have to have the remote to select inputs i also hooked amp and subs up amp to the sub rc's at the back...


Hey Ryan I have the same thing dude has and my sound only works when I have my subs are hooked up. Without my subs hooked up I have no sound at all. Do you know how I can fix this?

Jan 26, 2009 | Car Audio & Video

1 Answer

My amp was bad so i replaced it now my sub does not work i checked the wiring that goes from the amp to the speaker and everything seem to be ok then i put another speaker thinking it might be the sub and...


It doesn't sound like the wiring from amp to sub is your problem.

Is your amp getting a power light ?
Are you sure your remote wire is hooked up properly ?
Check both ends of your RCA cables

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Thunder 5604


okay u will have to troubleshoo the amp.....dose the amp light up?...when u have the radio on? also check your sub wires.going to the amp....make sure the rca'sare hooked up to the radio rear out puts are the radio sub out puts...and then test your amp gain adjustment...let me know if that work's

Jun 23, 2008 | MTX Thunder5601 300W x 1 Car Amp Mono...

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My Amp


sounds like the sub that throws it into protect mode is cross wired pull sub out and make sure they are wired right make sure ground from sub goes to ground on box and do same for power wire

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5 Answers

Protect light flashing/ticking


this problem sound like you have too low of power going to your amp, test your battery and make sure its putting out enough power for at least the mininum amount of power that your amp requires, you can find that information in your manual or sometimes they post it on the amp itself. i hope this info helps

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