Question about Rockford Fosgate Punch Stage P312 D4 Car Subwoofer

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I have a Rockford PL2-110 and intermittently I get a loud popping noise out of nowhere. the sub sounds good the majority of the time but occasionally it will make the noise more and more often. any ideas?

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Have you double checked the wiring ( + to + and - to -)? When hooked up correctly, a sub should push outward when bass hits. If your wiring is correct and your amp isnt too big for the speaker then its about to go out.

Posted on Jun 30, 2009

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Posted on Jan 02, 2017

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Sub Speaker giving intermittent loud crackling and sharp loud popping sounds even with main volume control turned off. Crackling sound can be reduced by turning sub volume control off.


It may be the control itself too. In time, these controls can get dust build up inside it. There are volume control spray cleaners available from Radio Shack or other electronic parts stores. The cheat on cleaning the control is to just rotate it from stop to stop as many times as it takes to clear the noise.

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At high levels sounds more like a thump than boom


Make sure the GAIN on the amp is not all the way up it is not a loud button. your amp should be tuned to your subs with the GAIN or on some LEVEL. if they are not matched you will clip the amp and subs and blow them.Is it in the proper sized box? is the amp able to run the sub at the ohm it needs to be run at and do you have the the ohm load correct on the sub. there is a lot to it. if your not familiar with it go to youtube and watch some videos there is some good vids there and will help you learn to wire a sub correctly i have enclosed a link easy to use.
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Mar 07, 2016 | Rockford Fosgate Car Audio & Video

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I have two 4ohm dual kicker compr 12s in a ported box, wired to a Rockford Fosgate 10001x BD amp at 1ohm,with 4 gauge ground and power wire. I'm also using 12 gauge speaker wire, and my HU is a JVC AVC-60...


If by "whiting" you mean "whistling" then yes, you probably have a ground issue and you are picking up alternator noise. Or you might have a very noisy alternator due to failing diodes, but the most likely scenario is a grounding issue. If you unplug the signal input to the amplifier is the noise still present? If so, the grounding issue is likely with the amp itself. If not, then the grounding issue could be with the head unit or quality of RCA cables between the HU and the amp. Do you have a crossover on the Rockford amp for the subs?

I'm also curious why you are running these subs at 1ohm. Are they dual voice coil subs and each voice coil is 4 ohms? If so, why not be a bit gentler on the amp and run the sub voice coils in series, then parallel the two subs to the amp to run 4 ohms? Running at 1 ohm is likely going to generate a lot of heat from that Rockford amp which will likely decrease its service life.

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I have a boss cx-3500 amplif & and a rockford p2 15 inch sub & not much punch what can i do to have more punch


mess around with the frequency on the amp till you get a good heavy loud sound and turn up the bass more and make sure the speaker cables are in the correct ports if one is in the other the wrong way around it wont give out as good quality or bass

Aug 20, 2012 | Rockford Fosgate Car Audio & Video

1 Answer

Stereo makes a thump sound after a installed a mono amplifier, the noise comes from the subs it drives, its also present when i turn it off, just a single loud thump noise.


Are you turning of the amplifier first or the source of audio? Amps should be powered down first and then the source. If both are powered down at the same time make sure the volume is down or otherwise you will always get a thump. The opposite when you power up. The source and then the amp. Hope this helps.

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1 Answer

Rockford sub squeaks


Hello markwasicki,

You did not specify what type of enclosure the subs are in or if they share the same airspace. But the sound you describe sounds suspiciously like the enclosure is at fault and not the sub itself.

Remove and reverse the subs in the box and test for the noise again. If the noise is still produced on the same side of the box, it's the enclosure. If the noise follows the sub, then you have a problem with that sub.

If the box is making the noise, and it's a ported box, you probably have "port noise". If it's a sealed enclosure, you could have either an air leak or flexing noise. In either case, repair the enclosure or put the subs in a new one. If the sub itself is making the noise, there probably isn't much you can do. Most likely some part of the voice coil assembly is touching where it should not.

Hope this helps.

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Intermittent, random, loud popping noises.


you have a problem with your amp. most likley the finals are passing dcv intermitently to the load.

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Any other symptoms? You may be just hearing the occasional sound of static being bled off, or, if the set is not working properly, the sound of the high voltage section trying to compensate...accordianman

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Digital out peters with odd blipping noises then stops outputing.


Hello there
First things first:

* this is a creative labs speakers models sub problem**
if you have warranty I suggest you use, Creative is alert on this kind of pop up sounds and others, concerning the subwofers.
time to RMS, or fix on house or other person who can change some resistors on the SUB.
other than this, ...just change for CREATIVE 7800 speakers, are good, and they correct this issue on this ones, I got it and I have 3 years with them and no problems.
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sounds like the evaputaor fan motor.. may need to replace.. check to see if anything maybe hitting fan blades

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