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Posted on Nov 04, 2009
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It is a ringing noise that comes through the speakers, I hooked up a rockford fosgate punch 400 to my factory speakers because my factory amp went out

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Steve Sweetleaf

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  • Car Audio & ... Master 1,212 Answers
  • Posted on Nov 04, 2009
Steve Sweetleaf
Car Audio & ... Master
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Joined: Nov 18, 2007
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Check the ground make sure its to bear metal.

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Related Questions:

0helpful
1answer

I have a rockford fosgate punch P325.1 subwoofer mono amp that blows a fuse every time i start the car. I have a second pioneer amp but that works with no problems. How can i fix this?

Is it the correct size fuse ? Is it the power fuse or remote ? Either way check your connections going into the amp . Try this hook your other amp to the set of wires for the rockford if that amp has a problem its a wireing problem if not chances are its an interal problem on the rockford . Hope this helps !
1helpful
1answer
0helpful
1answer

Hey i was wondering on the model punch 325.1 rockford amp what positive and negitive hook ups do i use for bridged channel.

the amp is a mono block so there is no bridge mode. The 2 speaker terminals are provided for easy connectivity of multiple speakers
0helpful
1answer

Rockford Fosgate Spare speaker termal screws

if you have one that you can compare to another, go to home depot with that and match it up. If not, take the amp to home depot and get someone to help you find the right one.
0helpful
1answer

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?

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.
4helpful
1answer

Not a problem just a question

  • 100 watts RMS x 2 at 4 ohms
  • 200 watts RMS x 2 at 2 ohms
  • 400 watts RMS x 1 at 4 ohms in bridged mode
  • stereo or bridged mono output
  • 4-ohm stable in bridged mode
  • Tri-Way capable
  • requires 8-gauge power and ground leads — wiring and hardware not included with amplifier
  • 50-250 Hz high-pass/low-pass (12 dB/octave) crossovers
  • wired remote included for fingertip control of Punch Bass (0-18 dB boost at 45 Hz)
  • MOSFET power supply and output devices
  • MEHSA mounting technology increases the heat transfer from the MOSFET output devices to the heat sink, for higher power output, lower operating temperatures, and greater reliability
  • TOPAZ — noise-killing differential inputs that eliminate 80% of ground loop noise
  • Trans•ana circuitry keeps preamp voltages low and signal paths simple for outstanding audio quality
  • NOMAD — advanced protection circuitry for "intelligent" shutdown protection
  • speaker- and preamp-level inputs
  • 11-1/8"W x 2-3/8"H x 9-7/8"D


  • Wire your sub in bridged mode (4 ohm mono)
    + to + on amplifier
    - to - on amplifier
    (using bridging terminals)

    Thanks for using FixYa - a FixYa rating is appreciated for answering your FREE question.
    0helpful
    1answer

    Rockford Punch HE2 wiring question.

    if your sub will handle it, bridging it will give you more power. The best thing to do is to find out how much power the amp puts out ( RMS ) and if it is in your power handling range bridge it. It sounds better and gives you a harder punch because of more power.
    1helpful
    2answers

    Rockford fosgate punch 700s gets very hot

    Disconnect the speaker wires from speaker terminals on the amp and turn the amp on (turn the head unit on). Set the volume to zero on the head unit.

    Does the amp get hot?

    If it does, either the bias is set to high or the amp has other problems. If it does not, you may have the speakers wired to the wrong ohm load.
    0helpful
    1answer

    I HAVE A ROCKFORD FOSGATE PUNCH 12" UNGLUED AROUND EDGE THE THICK PAPER RING IS SORD OF WORN OFF SPEAKER IS IN WORKING CONDITION, WHAT WILL IT COST TO REGLUE?

    This can't be glued. common problem.
    You will have to find a speaker repairer who can replace the foam surround or just buy a new sub.
    0helpful
    1answer

    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
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