Question about Rockford Fosgate 600.4 Car Audio Amplifier

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RF Amp Hey you answered my question...I don't have my subs connected yet, would that cause the problem light to turn on??

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Blown power supply, bad output on the rail. Switcher bad in the power supply. It is going into protection mode because it is seeing something it doesnt like. A service center / tech. will be the only place to repair. Its not a DIY type of repair.

Posted on Dec 27, 2008

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Rockford Fosgate P3002 stopped working


push down and up on your subs and see if they make a starching noise, if they do then they are blown. take a test light to the amp, on the power and the remote and see if it lights up. if it does then turn the amp down and with a small speaker plug it in to the speaker outs on the amp and see if it plays if not then your amp is bad.

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Amp worked fine one day and the next day i get nothing. the red light on the side is on but i dont get any sound. i took the subs that were wired on that amp and wired them on the other punch 800 i have...


did you check all fuses on amp and coming from battery power wire? also check the ground and rca cables connecting to the unit and make sure the remote wire (small blue wire) didnt come lose thats usualy a sign for the red light

Mar 26, 2011 | Rockford Fosgate Punch 800a2 Car Audio...

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Hey i dont know to much about amps, but me and my friend (he knows a decent amount about amps) would plug the power into the amp and the green light would come on. Though when we plug it into the subs, the...


Are you connecting positive to positive and negative to negative from the sub to the amp? If so, try positive to positve (+) in the far left channel and then the negative to negative (-) on the far left channel to. If no luck do the same in the other channel with one sub at a time. Try one sub at a time, Dont try an connect 2 or more subs to one channel as this would cause the amp to go into protect mode (red light you describe). Usually the positive wire has either a line down the wire, writting on it or has a red seperate wire with it when wire end stripped to connect it. Hope this helps and please rate...

Mar 11, 2011 | Bazooka EL1500 Car Audio Amplifier

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Red light is on and subs won't play all the wires are connected correctly it all of a sudden just stopped working one day idk y


sounds like the amp is in protection mode. try disconnecting the subs and see it the light changes to green. if it does then the subs are your problem. if the light was allways red while it was working then the subs may be disconnected inside the box or have gone bad. try using a diffrent speaker and connect to the amp.

Feb 06, 2010 | Audiovox Car Audio & Video

3 Answers

How do I hook up one sub to my rockford fosgate p3001 amp


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.

Jan 08, 2010 | Rockford Fosgate P3001 Car Audio Amplifier

2 Answers

No sound protection light on.


Either blown subs, or bad amp.. Disconnect the subs, and try turning the amp on, if the amp is still in protect then your amp is bad, if the protect light goes off, then your subs are bad, or possibly wired at to low of an impedance, but I don't think that will trigger the protect on an Audiobahn amp.

Aug 21, 2009 | AudioBahn A2002T Car Audio Amplifier

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Red thermal light on


well id say you have cooked your amp and or subs they can only take beatings for so long. show it no mercy it gives it back,does amp smell do subs smell borrow amp see if subs are ok if so it will be your amp.new one .keep the gain down??

Jun 11, 2009 | Rockford Fosgate Punch P550.2 2-Channel...

1 Answer

Amp doesn't come on


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.

May 19, 2009 | Clarion APX1300 Subwoofer Mono Amp - 300W...

1 Answer

RF P3001 power problems


check your sub woofer connection if you have multiple subs the could be wired in a parallel or with has to many ohms that my cause it to not hit right and cause the amp to get really hot and cut in and out

Nov 15, 2006 | Rockford Fosgate P3001 Car Audio Amplifier

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