Question about Rockford Fosgate Punch P5002 Car Audio Amplifier

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I have a p5002 rockford protection mode

I have a p5002 rockford and it was working fine with two kicker comp 12's dual 4 omh subs untill i hooked up just one i ran it paralel on the speaker and brigged on the amp it was working untill i turned it up and it went into protection mode tried everything to get the green but stays on red whats the problem????
please help

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  • jspraguej Jun 19, 2009

    ok did that no protection light but no sound hook up the speaker and it just pushes out or in depending on the speaker wires i also took the amp apart and dont see anything fried or burnt what happened know hpw to fix it????

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6 Suggested Answers

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Posted on Jan 02, 2017

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  • 631 Answers

SOURCE: i have a Rockford Fosgate Puch 1000 watt amp "thermal" problem

With your multimeter set to DC volts, the black meter lead on the ground terminal of the amp and the head unit on (so the amp will have remote voltage applied), touch the red lead alternately to the B+ and remote terminals of the amp. If the voltage is below ~11 volts, you need to check the wiring feeding whichever line is too low.


If the voltage remains near or above 12v, disconnect all speaker wires from the speaker terminals of the amp and disconnect signal cables from the amp. If it powers up without the thermal LED being lit, the wiring needs to be checked. If it still indicates that it's in thermal protection, it needs to be serviced. A local repair shop will be the quickest. Rockford will email you the schematics.

Posted on Apr 08, 2008

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Ciza24
  • 59 Answers

SOURCE: Help with CVR 12 (kickers) and a Power 1050 s amp (Rockford Fosgate)

Send me your email account and i will draw you a diagram and send it to you there. I will need to know if the ohms of each sub as well as the amp. I'll also need to know if the subs come with one or two voice coils.
Ciza

Posted on Nov 04, 2008

blueextc3221
  • 15935 Answers

SOURCE: i have a rockford fosgate

Remove the load from the amplifier (subs) and the RCAs
Retry.
If the light stays on, there are internal problems with the amplifier, and it needs to be serviced.
If the amplifier works normally, attach the RCA's and power on again.
If it remains on, connect one sub, and then the other.
Your amplifier is a 2 channel amplifier rated at
60 Watt - 4 Ohm - 2 channel(s)
125 Watt - 2 Ohm - 2 channel(s)
250 Watt - 4 Ohm - 1 channel(s)
Your amplifier is not rated for a 2 ohm mono load.
If you have Single voicecoil subs wired in parallel, you have a 2 ohm mono load - your amplifier will eventually fail.

Posted on Jan 16, 2009

etirbynnor
  • 655 Answers

SOURCE: Sub Wiring

Hello jtkpay,

Rockford-Fosgate claims their latest V-power 1500bd is stable to 1 ohm, and I would think that your Oldschool would also be. The 2 wiring options for 3 subs with 2 ohm dvc would give you a 1.34 ohm load and a 3 ohm load. The 1.34 ohm option would mean more watts to the subs, but the amp will run hotter. The diagrams look like this:

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Using just 2 of the Kickers, you can wire 3 different ways, with final impedances of 0.5 ohms, 2 ohms, or 8 ohms. You do not want the 0.5 ohm load. It's bad for the amp. You don't want the 8 ohm load. It doesn't allow the amp to produce as much power. So that leaves only the 2 ohm, with coils in series and subs in parallel. It looks like this:

97d7e1b.gif
Hope this helps. If it does, please rate as "FixYa".

Posted on Apr 27, 2009

SOURCE: i was given a rockford

Hello,

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!

Posted on Nov 10, 2009

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1 Answer

How to get 2 omhs


Look on your speakers to see what ohm they're rated at currently. To get 4 ohm speakers to 2 ohm, simply wire the speakers in series. Meaning that you hook #2 sub to #1 sub and then to the amp. So you will have 1 connection to the amp but you'll be operating 2 subs. Hope this helps

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I have 2 10" Kicker Comp Subs


That amplifier is only rated at 150 watts at 4 ohms, or 300 watts at 2 ohms. Not a very strong amp to run 2 kicker comps. My guess is you have the subs wired wrong for your application. There are 2 types of subs, one is a dual 4 ohm, and one is a dual 2 ohm. Most people bridge these coils together and that cuts your ohms in half. For example. Lets say you have the 10cvr104 subs. Thats the dual 4 ohm sub. You wire the coils together in parallel, now its a 2 ohm sub. You have 2 of these subs running off of your amp, if they are hooked up in parallel, now you have a 1 ohm load, out of the amplifiers normal operation. Your amplifiers internals heat up really quick and there is a thermal overload, putting your amplifier into circuit protection mode. My suggestion for wiring your subs is as follows: for each speaker, wire the coils together like this- positive coil1 to negative coil 2 and negative coil 1 to positive coil 2. That is called running in series, and doubles your ohm load. Next, we need to wire the speakers together properly to hook up to your amplifier. For this, since the coils are hooked together, you only need to use one set of terminals from each sub. And take the positive from sub 1 and hook it to positive of amp. Take negative sub 1 and hook it to positive of sub 2. Take negative of sub 2 and hook it to negative of amp.

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To do this they MUST be wired in parallel, IE: Plus to Plus, Negative to Negative. 2 4 OHMS in parallel is about 2 OHMS in series it would be 8 OHMS... series is positive to negative. Are you using a crossover network?

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Can i hook up my sub if it's wired to a 2 ohm and my amp is 4 ohm


Hi martineztag
You should never connect a load of an impedance less than the min the amp is able to drive. This can have disastrous consequences that may easily result in failure of the amps output stages. You need to use a different configuration that does not overload the amp in this manner for safe operation.
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I have a Rockford Fosgate Puch 1000 watt amp "thermal" problem


With your multimeter set to DC volts, the black meter lead on the ground terminal of the amp and the head unit on (so the amp will have remote voltage applied), touch the red lead alternately to the B+ and remote terminals of the amp. If the voltage is below ~11 volts, you need to check the wiring feeding whichever line is too low.


If the voltage remains near or above 12v, disconnect all speaker wires from the speaker terminals of the amp and disconnect signal cables from the amp. If it powers up without the thermal LED being lit, the wiring needs to be checked. If it still indicates that it's in thermal protection, it needs to be serviced. A local repair shop will be the quickest. Rockford will email you the schematics.

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The easiest way to think of wiring voice coils and subs is this:
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    • 4 ohms in parallel with 4 ohms = 2 ohms
    • 8 ohms in parallel with 8 ohms = 4 ohms
  • Two items of the same impedance in series = Double the impedance
    • 4 ohms in series with 4 ohms = 8 ohms
    • 8 ohms in series with 8 ohms = 16 ohms
In this case, you want to wire two subs, each with dual 4 ohms voice coils, so that the total equals 2 ohms. Your options are:
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  • DVCs in series, 2 subs in parallel = 4 ohms
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With two, dual 4 ohm subs, you can only have 1 ohm or 4 ohm total impedance.

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