Question about Rockford Fosgate Power 750X Car Audio Amplifier

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Rockford 750X i hooked it up and my right rear channel isnt working what would be the problem

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Re: rockford 750X

Check your wiring, and if everything is fine you might have a blown or broken channel on your amp

Posted on Aug 15, 2007

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Rockford Fosgate Power 1000 amplifier. (25 to life) When I turn it on there is almost no sound coming from speakers. I have to turn up the volume almost to max to hear something. But only very high...

turn or flip the LPF and sub sonic buttons to see if they will help.
there are other buttons called gain that you may have to turn to bring up the volume.
its very likely your eq buttons that you have to mess with to get it right. post up pics if you can.

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The power control in your headunit might have not been hooked up right. Or you blew one input and the other one works

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if ur amp has to channels then u hook up the + to the right side of the amp an the - up to the other side of the amp , make shore u turn down ur amp if u do so

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Hey i have looked over many rockford manuals,(i own a 300.1 my buddy owns a 325.1) and for there mono(.1) amps there hooked together on the inside so channel A+ and B + are cencted on the inside the amp. So you ither hook one 2ohm sub to channel A or you can hook 1 4ohm subs to channel A and 1 4ohm sub to channel B. There 2ohm stable so any lower will eventualy burn the amp out.

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I was given a rockford fosgate 500x 4 channel amp and the rear 2 channels work fine but the 2 front dont when i hook up the speaker the speaker bottoms out and stays like that until i unhook the speaker...


Sounds like those two of the channels are blown. There is really nothing that can be done about that other than having an expert repair it. You might as well buy a new one tho, or just use it as it is.

You could look at all the fuses in it, make sure there not blown (they will be black and the little metal piece inside the plastic will be broke or cracked)

Post back if you have any further question's and comments. Thank you for choosing Fixya!

Nov 10, 2009 | Rockford Fosgate Punch 500X Car Audio...

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Please don't take offense, but some tips on submitting problems on Fixya:
  • Resist the urge to use all capital letters. Reserve them for frustrating yells :).
  • Use a period or two. It's very hard to read without them.
The easier to read, the better responses you'll get!
Anyway, back to the issue at hand.....

Definitely get a handle on the gain adjustment. Both channels should start with a gain at the 50% point. Also, you can try bridging the amp ("+" speaker outputs tied together, "-" speaker outputs tied together) and run the full 800W into the single 10" sub, but that is going to depend on what your sub is rated to handle.

The only other thing I can recommend is call around to a couple stereo shops and see if anyone can test the amp for output power. That'll verify whether there's really a problem on the one channel.

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2 channels not working on 4 channel amp

Well firstly are you using a parametric crossover with your radio and how much rca cables do you have coming you head unit (car radio) if you going to bridge the front up with you rear speakers u wont be able 2 hear the rear speakers try hookinking it up 2 your head unit's front speaker output and have ur rca cable connected to your amp running on your rear output of your head unit by doing this you can use your fader on your head unit to control your front and rear speakers

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Rockford 750X

sorry bath you mous change the amplifayer integration

Jul 21, 2007 | Rockford Fosgate Power 750X Car Audio...

1 Answer

Rockford Fosgate P4002

Yes they are ! And that means the DC is on the speaker and will for sure damage the speaker if it already hasent

Jun 15, 2007 | Rockford Fosgate Punch P4002 Car Audio...

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