Question about Rockford Fosgate Punch P4004 Car Audio Amplifier

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Is it enough to power to 12 volge=ahagen 12oowatss dual 4 ohms

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Your Volfenhag 12" subs are rated at 1200 watts they are only 600 watts rms and the Rockford punch p4004 is only 200 watts rms so the answer is yes it will work but if you get a amplifier that pushes out 500 - 600 watts rms you will love the sound from subs
there is nothing wrong with the Rockford amp it just wont pound out the bass as hard but the good news is you will never blow the subs with it
when buying amps or subs make sure to look at rms rating that is the true power they actually have ie. (sub box says 1200 watt you think powerful but if you divide it in 1/2 you actually get 600 watts rms) don't get me wrong that's a nice rating. for a sub but you will want to match that number with the amps rms rating or lower. The RMS is what makes the car pound the higher the RMS the better
hope this helps

Posted on Mar 06, 2009

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Can i hook this amp to a 2 channle out put stereo?


Sure. Specs are listed below. I think it's designed for regular 2-channel input, isn't it?

jturcotte_41.jpg

Front Channels: 100 W RMS x 2 @ 1.5 ohm-4 ohm (11V-14.5V)
  • Rear Channels: 25 W RMS x 2 @ 1.5 ohm-4 ohm(11V-14.5V)
  • Subwoofer Channel: 250 W RMS @ 1.5 ohm-4 ohm (11V-14.5V)
  • THD at Rated Power: <0.03% @ 4 ohm (F&R), <0.05% @ 4 ohm (Sub)
  • S/N Ratio (F&R): >108.5 dB below rated power S/N Ratio (Sub): >95 dB below rated power
  • Frequency Response (front and rear): 5 Hz-30 KHz (+0, -1dB)
  • Frequency Response (sub channel): 5 Hz-500 Hz (+0, -1dB)
  • Damping Factor (front and rear): >200 @ 4 ohm/50 Hz
  • Damping Factor (sub channel): >500 @ 4 ohm/50 Hz
  • Input Range: switchable from 200mV-2V RMS to 800mV-8V RMS
  • Differential-Balanced Input Topology: (3 pairs of inputs)
  • Front Crossover: fully-variable (50 Hz-5 KHz), selectable- slope BP or HP (12 or 24 dB per octave)
  • Rear Crossover: fully-variable (50 Hz-5 KHz), selectable- slope HP (12 or 24 dB per octave)
  • Sub Crossover: fully-variable (40-200 Hz), selectable-slope LP (12 or 24 dB per octave)
  • Preamp Output: 2-channel (full-range or LP)
  • Bass EQ: Variable boost up to 15db
  • Infrasonic Filter: defeatable 24dB/octave at 30 Hz
  • Left minus Right Ambience Circuit: ambient effect for rear channels
  • Front and rear speaker output connections: accept up to 8ga. wire
  • Dual mono subwoofer output connections: accept up to 8ga. wire
  • +12V and Ground connections: accept up to 4ga. Wire
  • Dimensions: 19.7"L x 9.25"W x 2.36"H
  • Dec 02, 2010 | Jl Audio 500/5 Car Audio Amplifier

    1 Answer

    I have a 12 inch audiobahn 550 rms 4 ohm coil ported box and a dual box with 12 inch subs they say 550 max wattas a piece thats it waht amp do i need to get atleast 80% of my power in bass


    Get a 1200 watt 4 channel amp that's 2 ohm stable. Bridge 2 channels into the single 550W rms audiobahn. Use the other channels for each side of the dual box. Turn the LPF or Low Pass Filter on and vibrate down the road.

    Sep 25, 2010 | Car Amplifiers

    1 Answer

    Need help wireing sub


    Is the speaker a dual voice coil speaker? If so you can wire it up a couple of diferent ways, go to rockfordfosgate.com they have a woolfer wiring wizard that can show you the different ways to wire for 8 ohm.....4 ohm.....2 ohm....and 1 ohm...I would figure out how to get the most power out of the amp in mono mode, take that ohm load from there and see if you can wire your speaker to match it.

    Oct 08, 2009 | Car Amplifiers

    1 Answer

    AMP


    That amplifier is only stable to 2 ohms.
    You will only be able to use one Dual 4 ohm Subwoofer wired in parallel (all + to + on amp.... all - to - on amp.
    This will yield a 2 ohm mono load.

    It is impossible to wire (2) dual 4 ohm voicecoils to achieve a 2 ohm mono load.

    If you're set on using both subwoofers - they will not be getting as much power from your amplifier with a 4 ohm load - but it is your only option.


    SEE THIS LINK for the wiring diagram.

    Thanks for using FixYa - a FixYa rating is appreciated for answering your FREE question.

    Jul 02, 2009 | Kenwood KAC-8104D Car Audio Amplifier

    1 Answer

    I cant bridge my us2300 to my 2-12


    all amps are bridgeabal .
    what you need to fine out what ohms can it handle 1 -2 -4 ohms
    and fine out your woofers are ?
    like dual 4 ohms or single 4 ohms ..

    Mar 08, 2009 | Car Amplifiers

    1 Answer

    New Dual XIA3145 2/1 LED glows red, guide claims speaker problem


    look at these and only these... power or ground...either your power wire has grounded out somewhere (ud be surprised) or youdont have a good enough ground....i would check the ground first....hopefully this helps

    Jan 27, 2009 | Dual (DBXPA6100) Car Audio Amplifier

    1 Answer

    Bridging 800a4


    That all depends upon whether or not the sub you are running has dual voice coils or just a single voice coil. The 800a4 is a four channel amp; thus the only way you can bridge it will be 3 channel or 2 channel. If you are running a dual voice coil sub then you can wire the amp two channel and get 400 watts x 2 @ 4 ohms. Make sure that you sub can handle this kind of power though.

    Here are the specs:
    4 x 100 @ 4 ohms (13.8V - <0.05% THD)
    4 x 200 @ 2 ohms (13.8V - <0.10% THD)
    2 x 400 @ 4 ohms bridged (13.8V - <0.10% THD)
    Fuse: External 60A
    Manufactured in 1999 - 2001

    Jun 18, 2008 | Rockford Fosgate Punch 800a4 Car Audio...

    2 Answers

    Kenwood KAC-9152D monoblock


    The amp says it's 1 ohm stable, so assuming the DVCs are dual 4 ohm, you should be able to connect all "+"'s together and all "-"s together, like the picture below:
    0f1cebe.jpg

    As for the amp shutting off for a few seconds, it sounds like it's either:
    A) Not getting enough power at high volume.
    OR
    B) Overheating.

    The cap on the +12V to the amp should help, but putting a meter on the +12V might tell you whether it's dropping too low (<11V).

    When you first turn the volume up, how long does it work fine before shutting off? Is it with the vehicle running or not?

    Mar 25, 2008 | Kenwood KAC-9152D Car Audio Amplifier

    2 Answers

    Dual voice coil wiring to class d amp


    The easiest way to think of wiring voice coils and subs is this:
    • Two items of the same impedance in parallel = Half of the impedance
      • 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:
    • DVCs in parallel, 2 subs in series = 4 ohms
    • DVCs in series, 2 subs in parallel = 4 ohms
    • DVCs in parallel, 1 sub = 2 ohms
    With two, dual 4 ohm subs, you can only have 1 ohm or 4 ohm total impedance.

    Mar 16, 2008 | Car Amplifiers

    1 Answer

    Mmatsd500.2


    First, the specs:
    • PPI 4200am = 50x4 at 4 ohms, 100x4 at 2 ohms
    • Alpine 3553 = 35x4 at 4 ohms, 50x4 at 2 ohms
    • Mmats D500.2 = 350x1 at 4 ohms, 500x1 at 2 ohms
    • 3x Mmats Procast 12 = Dual 4 ohm VC
    • 1x JL 15w6 = Dual 6 ohm VC
    • 2x JL 15w0 = Single 8 ohm VC
    Second, I don't think I would recommend mixing n' matching the subs. One of the subs would always be working harder than the rest. If you want to run multiple subs, make them all the same. Sometimes, you can get away with it if they are all the same voice coil impedance, but in this case you've got dual 4 ohm, dual 6 ohm, and single 8 ohm subs all in the mix.

    If it were me, I'd probably stay with the single 15w6. But it's your money :)

    Mar 12, 2008 | Mmats D500.2 Amplifier Car Audio Amplifier

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