Question about Rockford Fosgate Punch 700S Car Audio Amplifier

1 Answer

Cold weather blown fuse

I have a rockford fosgate 700s amplifier. In cold weather the amp will blow the fuse. Tried both 30 amp fuse and 60 amp fuse. Although I live in San Diego if it cold enough it will blow fuses.But if I drop the rear seat and expose the amp with the heater on full blast for a while like 10 min. the amp will turn on and work just fine. during the summer it doesn't really happen at all, everything will be okay. I need help. I really like this amp and can't really afford to get new stuff. by the way this amp has been hooked up to two jl audio 10w4's and to two kicker cvr12's but amp still has the same problems. Tried a different amp for a while to test wiring, but never had a problem. just with fosgate 700s. please help. thanks

Posted by on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that gotĀ 5 achievements.


    An expert whose answer gotĀ voted for 20 times.


    An expert who has answered 20 questions.

  • Expert
  • 84 Answers
Re: Cold weather blown fuse

You might want to try better quality fuses, or allow the amp to warm up a bit before you start bumping down the street make old ladies angry.

Posted on Jun 19, 2007

Add Your Answer

0 characters

Uploading: 0%


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


3 Points

Related Questions:

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

Rockford fosgate p 300-1 amp will not turn on

plug your ground, battery, and remote wires only and see if it turns on when you turn your radio on, if not it must have blown. wiggle or move the connection block(where your wires are connected) and see if it tries to turn on. if so, your leads need to be re-soldered since they tend to go cold(they're not making good contact). But again, if that does not help, then your amp is gone.

Mar 18, 2010 | Rockford Fosgate P3001 Car Audio Amplifier

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.



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

1 Answer

Ohms load

u should be able to just dont wire the subs sown to 1/2 or 1 ohm I believe these amps can handle 2 ohms and above

Nov 23, 2008 | Rockford Fosgate Punch 700S Car Audio...

1 Answer

Amp gets very hot in as little as 5-10 min.

Whats the omh load and how old is amp??? The old Rf amps always got hot that how they worked.... No ventilation???? 

Nov 05, 2008 | Rockford Fosgate Punch 700S Car Audio...

2 Answers

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.

Nov 03, 2008 | Rockford Fosgate Punch 700S Car Audio...

1 Answer

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.

Dec 22, 2007 | Rockford Fosgate p-450.4 Car Audio...

Not finding what you are looking for?
Rockford Fosgate Punch 700S Car Audio Amplifier Logo

Related Topics:

209 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