Question about Rockford Fosgate Punch P450.4 60W x 4 Car Amplifier Car Audio Amplifier

1 Answer

Rockford Fosgate P450.4

I have a P450.4 i have no power. The fusess in the amp are new and i have a fuse near the battery. Is there a rest button on the amp.

If you can help please email me at thicks4@bigpond.com

Thanks

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 631 Answers

There is no reset button on the amp.

With your multimeter set to DC volts, the black meter lead on the ground terminal of the amp (not on the point where the ground wire connected to the vehicle) and the head unit on (so the amp will have remote voltage applied), touch the red lead alternately to the B+ and remote terminals of the amp. If the voltage is below ~11 volts, you need to check the wiring feeding whichever line is too low. If both are above 12v, the amp will require servicing.

Posted on Jun 16, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Where's the fuse located in a Fosgate p300-1 amp?


It is just to the right on the rear of the amp next to the 12 V + - RTO +

Here is a link to a picture:

http://www.crutchfield.com/S-mj0Klw5sfLm/p_575P3001/Rockford-Fosgate-Punch-P3001.html

Feb 14, 2012 | Rockford Fosgate Car Amplifiers

1 Answer

I got a rockford fosgate 801s. and i cant find where the fuse is located.



Regards, Tony

May 22, 2011 | Rockford Fosgate Punch 801S 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

Rockford Fosgate Punch P325.1 Amp keeps blowing fuses every time I start the car. What is going on?


well if the amp works with the car off and when you start it the fuse blows then you may have alternator issues use a volt meter to check battery voltage is not above 14.5 volts
if the fuse blows when the amp turns on then most likely you have a shorted output section in the amp.

Mar 18, 2010 | Rockford Fosgate Punch P325.1 Subwoofer...

1 Answer

Amp not working


It sounds like you either blew a fuse, or you cooked your amp. The fuse on the P200.2 amp is a 30A fuse, and it sits right next to the power, ground, and remote wire connections on the end. Pull the fuse out and see if it's blown. You should also check any other fuses that you have in the car before the amp.

Mar 03, 2010 | Rockford Fosgate Punch P2002 Car Audio...

1 Answer

I have a rockford fosgate 550 that the fuse blows


Short inside one of the transistors. This requires very good soldring skills and electrical know-how, and some thermal paste to go between the heat-sink and the transistor. Unfortunatly this is not a cheap repair, probably cost around 100 dollars.

Cheers,

Kevin

Feb 09, 2010 | Rockford Fosgate Punch P550.2 2-Channel...

2 Answers

Amp was hooked up without fuse from battery to amp


Another failure must have occured, as the fuse would have blown, possibly limiting the damage, however something did fail to start the problem.

Nobody can give you an honest estimate without analyzing the damage.
A wild guess would be one-half the cost of the unit.

Sep 10, 2009 | Rockford Fosgate 100a2 Car Audio Amplifier

1 Answer

Rockford fosgate 800 a2 amp power?


Hello desperate2le,

Watts delivered is a function of the voltage times the current. If the amp was 100 percent efficient, it would need 33 amps at 12V for 400 watts. At 14.4V, it would only need 28 amps. Of course, amplifiers are NOT 100 percent efficient, only about 50-60 percent in many cases, but somewhat higher for monoblocks, maybe 80-90 percent. So you're looking at a fuse in the 60-80A range. In the absense of a specific fuse size from the manufacturer, I'd start the primary fuse at a 60A and if the amp blows it on power up/immediately/frequently, move up to an 80A.

All of the Rockford-Fosgate 2-channel bridgeables I've ever seen show using the left positive (+) and the right negative (-) for bridging. But if it's not shown right on the amp, I'd call or email RF for the correct connection. The new amps do show it.

Hope this helps.

Apr 27, 2009 | Rockford Fosgate Punch 800a2 Car Audio...

1 Answer

Amp


There is no reset button. If you disconnect all of the speaker wires from the amplifier's speaker terminals and unplug the RCA cables, does the protect light still come on (I assume that you've already replaced the fuse)?

Jan 12, 2008 | Rockford Fosgate P6001BD Car Audio...

2 Answers

My amp was smoking and I want to know how to repair it.


The Amplifiers Positive to ground will only hurt the wire to the battery, and blow the main fuse near the battery.  Check the main fuse near the battery.  

Oct 28, 2007 | Rockford Fosgate P3001 Car Audio Amplifier

Not finding what you are looking for?
Rockford Fosgate Punch P450.4 60W x 4 Car Amplifier Car Audio Amplifier Logo

Related Topics:

170 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

Loading...