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System has a buzzing sound dosent go away unless i turn bass all

Ppi d1000/1 amp, fosgate p3 subs in a fiberglass box

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  • mvillalobos3 Dec 30, 2008

    I have a buzzing sound coming from my subs it will not go away unless i turn the bass knob all the way down and it also occurs when the car is on. I also here a bit of a hissing sound and that clears if i turn the four in one down.I have audio control epic 160 and audio control four in one units running my amps are ppi amps d1000/1 for my subs and a600/4 for my highs. speakers are 6 1/2 in. RVF216 mbquart comps on the doors and 6x9 mbquart (forgot model#) but they are coaxial no comps. my head unit is a kenwood ddx6019. my rca wire are all JL audio wires. I also have navigation and bluetooth phone dont know if this helps but thats all.

  • Jason May 11, 2010

    Please restate your question with more detail. It looks like you typed your question into the subject line so I cannot fully read it.

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Definately a grounding issue. check ground wire for breaks and make sure to ground on a solid metal surface such as the frame of the car.

Posted on Aug 01, 2012

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Sounds as if you may have a bad ground. try running an external ground from the radio to a bare piece of metal underneath the dash.

Posted on Jan 01, 2009

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1 Answer

Why does my 6x9 amp drop or not let the sound play at all when my subs are on? it just started to happen? they worked together fine before. i turn the subs off and the 6x9 work? but when i turn the subs on...


You probably have too much hooked up for the size of your power supply which is presumably a small car battery. You either need to get:

A) New, better bigger battery.
B) Capacitor in series with battery.
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Mar 08, 2010 | Rockford Fosgate Punch Stage P212 S4 Car...

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2 12 p3d212 2 ohm hooking up to a rockford fosgate p325 .1 mono amplifier can it work? and how?


Hello a_brake11,

The P325.1 is relatively small to power a pair of P3's. You'll only get 325 watts RMS at 2 ohms (162.5 watts per sub). The P3's power range is from 100-500 watts, so they will work, but don't expect them to be really loud.

For best power, your subs should be wired with the voice coils in series and then the 2 subs paralleled to the amp resulting in a 2 ohm load.

Hope this helps.

Aug 26, 2009 | Rockford Fosgate Car Audio & Video

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Connect rockford fosgate amplifier & speaker together


Assuming your P3 has a single voice coil (it will have only one place to plug your wires into) you will be running this in a bridged mode. You will take the left (+) coming off the amp and plug it into the (+) on the P3. Then take the right (+) from the amp and plug it into the (-) on the P3. This will make your amp push 500 watts to your sub. Now on the amp make sure your adjustments are as follows: Signal input switch is set to unbalanced for RCA input. Left Phase switch is set to 0. Right phase switch is set to 180. your X-card should be set to low pass. And adjust the gain for both R and L equally so it has equal power from both channels.

Aug 09, 2009 | Rockford Fosgate Punch 401S Car Audio...

2 Answers

Need specs to build box for my truck


I do design sub enclosures for a living and I give free specs on basic setups, so you are in luck. As a starting point I'll start by saying that fitting them under the seat may not work that well. Each sub will need about .75 cu.ft. sealed and probably double or triple that for a good ported box. I can get more specific If you e-mail me (dynami28@charter.net) the specs on those subs. Specifically I will need the Theile Small parameters ( these numbers-VAS, QES, QMS, FS, etc,) and then I can give you a better idea of where they will fit. If they do go under the seat they will probably not produce really low bass because smaller boxes generally produce higher bass tones. This decision should be based on what you listen too and what you expect them to sound like. They most likely will be more thump than boom and some people like that, so figure that out as well and let me know. Also my father has the same truck and there is a lot of room under the back seat. You can also gain some extra space by using fiberglass to conform the enclosure to the contour of the truck.
-Dynami

Apr 02, 2009 | Rockford Fosgate Car Audio & Video

2 Answers

Subs not as loud as they should be plz help


RCA output level and speaker level output have different voltages and currents. The problem you are describing is common to folks trying to connect an OEM dash unit to an aftermarket amp. If your amp has speaker level inputs, try wiring to those......best bet..buy a new head unit, it'll sound better...louder and cleaner.

Mar 11, 2009 | Kicker IX404 Car Audio Amplifier

1 Answer

Ive had 6 blown subs in the last 6 months


be careful with fosgate amps. They are more powerful then what is stated on them. I found this out when I blew a 15 with a punch 260ix. These amps are made for competion use. The 600.1 does not push 600 watts as stated. I had one tested and it actually pushes close to 800 watts. Turn ur bass level and ur gain to about 3/4 power and this should solve your problem

Feb 23, 2009 | Car Audio & Video

1 Answer

Amp light turning off and on


if you see that happen you might need to your i c sound chip or your trasistor change then and check

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RockfordFosgate p2 series


i would get a good pair of RCA's that might help. if not they also make a noise filter that you can add to your RCA's, bad ground could be the problem to.

Aug 13, 2008 | Rockford Fosgate RFP3410 Car Subwoofer

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Subwoofer Trouble


Turn the bass gain all the way down., Turn up your your volume on bass test song. Crank up the little box next to the steering wheel wide open . Now go gradually turn up the bass gain on the RF amp until you get distortion. Turn the gain down slightly. Now you can enjoy playing the bass from one end of the little boxes setting to the other without ovrloading your amp and subs. Open a can of whoopass on anyone who tries to crank up on your gain.

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