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Car amplifiers I just hooked up 2 mtx terminator 12" subwoofers with a 400w amp. I had to use a line output converter to install it with my stock stereo. ever since i hooked it up my subs keep cutting out. i can twist my rca cables on the converter and sometimes they will cut back on. i have already exchanged the converter for a new one but it still does it. Does anyone have any suggestions?

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Connectors on the rca's are bad. need to be changed out

Posted on Jul 13, 2008

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I have a sony deck with a 200 terminatorand 2 legacy 12" subs. i hook everything up an when i hook up the remote wire the light turns from green to red an it whistles the subs **** up.


Your giving a wrong load / Ohms impediance to your amplifier.
What are the specifications of your subwoofer? Is it SVC 4ohms or DVC 4ohms or DVC 2ohms? Whats the specs of your amplifier?

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Can't get my amplifier to work.


My homie had the same problem with his escalade they adapted an rca line adapter from the factory wiring to geta signal to his amplifier and it just wasnt hitting like it should so we installed a new deck and plugged the rca cords right into it and boomboom pow it was hittin like a champ-we figured that the stock premium system that was incoprporated into the truck had some sort of an onboard amp that was filtering the bass from the door speakers and which was limiting the bass output to the rca adapter and thus on down the line to the amplifier- so maybe ya might want to look into getting an aftermarket deck and see if that helps your cause-good luck

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Hello rheabarb,

You did not say whether or not you checked the wiring going to your subs. Many times, a shorted or grounded speaker wire will cause an amp to fail. And if the amp powers up OK with the subs disconnected, I'd suspect one or more of the wires.

Hope this helps.

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Similar prob.did the 12 steps on how to install amp(jensen4100,blue).red protec light comes on when starting car then goes out and is not followed up by the green protec light .green one never comes on....


If you are running a set or a single subwoofer with the jensen amp than you will want to hook up the rca cord to the subwoofer rca connection on the back of the stereo unit-the other rca outputs are there in the event that you want to run a 2 or 4 channel amp to power the speakers that are generally located in the doors or back deck-with that set up properly you would still be able to adjust the balance and the fader just as though you were powering the speakers with the deck. Pug the free ends of the RCA cord into the input rca receptacles of the amp- the stereo now will feed a signal to the amplifier that only contains bass - good luck

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I have a rockwood Amp-479X, need directions to install


Hello william_pric,

Look on the speaker output terminals to see if there is an indication, usually a line between the positive (+) on one to the negative (-) on the other, with the word "bridged". If the bridging terminals are not indicated, you can always try one of the positives and the other negative. If there's no sound, it must be the other two terminals. Just be careful that you don't short the terminals, and don't crank the volume up without the sub connected. Some amps don't like an infinite load.

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1 Answer

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1 Answer

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