Question about Rockford Fosgate p-450.4 Car Audio Amplifier

1 Answer

Rockford amp cut out

I have a rockford fosgate p2002 amp hooked up to two 4 ohm punch 2s. i had a pyle 1 farad capacitor hooked up but every time i try to turn it on it blows the fuse. even when i disconnected the capacitor it still blows the 30 a fuse. im not sure if the amps beat or if it might be the capacitor? i bridged it just like on the website so i dunno if you guys know something i don't.

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 631 Answers
Re: rockford amp cut out

Disconnect all speaker wires from the speaker terminals of the amp and disconnect the RCAs. Replace the 30 amp fuse with a 15 amp fuse. If you turn it on and it blows the fuse, it's likely that it has shorted output transistors. If that's the case, you need to have the amp repaired.

Posted on Dec 22, 2007

Add Your Answer

0 characters

Uploading: 0%


Complete. Click "Add" to insert your video. Add


3 Points

Related Questions:

1 Answer

Received a RF P2002 for Xmas want to install in my PU to power 12 in woofer I can figure out the input do I just connect the woofer to the bridged + and - or is there something I need to do to get thi

this amplifier is a 2 channel 50watts rms per channel and would not really be powerful enough to drive a subwoofer of any substance for car use, however , bridging it would give you 200watt rms into 4 OHMS but your subwoofer would have to be a single 4 OHM voice coil. Best you use this amplifier to drive a pair of speakers.
Hope this helps. let me know if I can further assist you

Dec 30, 2013 | Rockford Fosgate Punch P2002 Car Audio...

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

Nov 27, 2013 | Rockford Fosgate PUNCH P1000X5D

1 Answer

Im looking at this rockford fosgate p700-1bd amp brand new for $300 it comes with a birth sheet it says 750 rms on a 1ohm load. i cant find any reviews about it 225 rms x 1 @ 4-Ohms 450 rms x 1 @ 2-Ohms...

You can't go wrong with Rockford, in my opinion. Everything they make is well built and high quality. I personally have two Rockford p500-1bd amps hooked up to four 12 inch subs in my car and those amps make those subs slam. I have them wired down to 1 ohm and the specs say that they should be pushing 500 rms a piece at 1 ohm so that p700-1bd amp really packs a punch. Depending on what you're hooking up to that amp I would defenitely recommend it to you. - Ryan in Alaska

Feb 15, 2011 | Rockford Fosgate P7001BD Car Amp

1 Answer

I have a old 2001 rockford fosgate 2 channel p5002 model in great condition just need to know how many watts is it and which subwoofers are compatible to this amp? thanks

Your amp is rated at 500 watts. Here is the break down of your wattage.

125x2 at 4 ohms
250x2 at 2 ohms
500x1 at bridged 4 ohms

When hooking up the amp make sure to use 4 gauge power and ground wire.

Jan 07, 2011 | Rockford Fosgate Punch P5002 Car Audio...

1 Answer

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 !

Aug 19, 2010 | Rockford Fosgate Punch P325.1 Subwoofer...

1 Answer

When i hook up the amp the protect light comes on. whats wrong

If all of your wiring is right, then that's a protection circuit telling you it's time to have your unit serviced by an authorized service center. Sorry for the bad news.

Aug 15, 2010 | Rockford Fosgate Punch P2002 Car Audio...

2 Answers

Need to know how many ohms this amp is

Safe down to 2 ohms, NOT a 1 ohm stable amp, it will be pushing it hard even at 2ohms but Fosgate's should be able to handle it providing that the install and all cables,wire,connections,etc. are sanitary!
Good Luck !

Jun 30, 2010 | Rockford Fosgate Punch 301S Car Audio...

1 Answer

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.

    Apr 25, 2009 | Rockford Fosgate Punch 401S Car Audio...

    1 Answer

    I have a rockford fosgate p250.2 amp hooked up to two 12' subs but the amp is not powering on... instead the protect light is on and im not sure if its because its so cold outside... please help and thank...

    Remove the load from the amplifier (subs) and the RCAs
    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.

    Jan 16, 2009 | Rockford Fosgate Punch P2502 Car Audio...

    Not finding what you are looking for?
    Rockford Fosgate p-450.4 Car Audio Amplifier Logo

    250 people viewed this question

    Ask a Question

    Usually answered in minutes!

    Top Rockford Fosgate Car Amplifiers Experts

    Pablo Gonzalez

    Level 3 Expert

    733 Answers

    Tygh Duval
    Tygh Duval

    Level 2 Expert

    290 Answers

    Robert Rankin

    Level 2 Expert

    338 Answers

    Are you a Rockford Fosgate Car Amplifier Expert? Answer questions, earn points and help others

    Answer questions

    Manuals & User Guides