Question about Rockford Fosgate Punch 700S Car Audio Amplifier

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Ohms load i have a rockford fosgate 700, I just want to know if it's ok to use these in 12"JLw7-3, 3ohms? please let me know and thankyou very much!

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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

Posted on Sep 09, 2009

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Posted on Jan 02, 2017

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1 Answer

Can I wire two p3 12 Rockford fosgate subs to a kicker 250.1 amp


It has two speaker terminals which allows you to wire muliple subs to the amp easier than trying to cram the wires all into one set of terminals. The two sets of terminals are wire in parallel internally on the amp, so it matters no which + or - you use on it. However, you need to remember they are already wired in parallel internally, so if you were to wire up two 2 ohm subs, the amp would see a 1 ohm load (which it's not stable at), not a 2 ohm.

May 04, 2015 | Rockford Fosgate Car Audio & Video

2 Answers

Can a rockford fosgate 500a2 run 1 ohm stable


yes, if you add a 1 ohm resistor to the negative terminal of speaker.

May 08, 2014 | Rockford Fosgate Punch 500a2 Car Audio...

1 Answer

How can i tell how many watts my fosgate 351m power amp is?


Specifications Dynamic Power Rating (measured at 14.4V):
  • 4-Ohm Load: 175 watts x 1
  • 2-Ohm Load: 350 watts x 1

Jan 29, 2013 | Rockford Fosgate Power 351M Car Audio...

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 two 12" kenwood KFC-W3003 (svc) 4 ohm 600 watts max 160 watts RMS subwoofers and two 12" Rockford Fosgate Punch RFP-4812 (svc) 8 ohm 400 watts max 200 watts RMS. I was wanting to know how i...


It can't be done unless you choose to include some power resistors in your circuit for impedance matching. The problem with that would be some of your power will be lost in the form of heat across the resistors without the benefit of contributing any sound.

Also, the amplifier's damping factor will be compromised, so you may notice a loss in sound clarity. It's possible that you might not easily tell with subwoofers, depending on the enclosures they're mounted in, and whether they're isolated in a trunk vs being in the same airspace with you (hatchback, SUV, or pickup truck).

If you need further help, I’m available over the phone at https://www.6ya.com/expert/reginald_bec291de192ca44f

Nov 13, 2017 | Rockford Fosgate Car Audio & Video

1 Answer

2 12 p3d212 2 ohm hooking up to a rockford fosgate p325 .1 mono amplifier can it work? and how?


Hello a_brake11,

The P325.1 is relatively small to power a pair of P3's. You'll only get 325 watts RMS at 2 ohms (162.5 watts per sub). The P3's power range is from 100-500 watts, so they will work, but don't expect them to be really loud.

For best power, your subs should be wired with the voice coils in series and then the 2 subs paralleled to the amp resulting in a 2 ohm load.

Hope this helps.

Aug 26, 2009 | Rockford Fosgate Car Audio & Video

1 Answer

Sub Wiring


Hello jtkpay,

Rockford-Fosgate claims their latest V-power 1500bd is stable to 1 ohm, and I would think that your Oldschool would also be. The 2 wiring options for 3 subs with 2 ohm dvc would give you a 1.34 ohm load and a 3 ohm load. The 1.34 ohm option would mean more watts to the subs, but the amp will run hotter. The diagrams look like this:

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Using just 2 of the Kickers, you can wire 3 different ways, with final impedances of 0.5 ohms, 2 ohms, or 8 ohms. You do not want the 0.5 ohm load. It's bad for the amp. You don't want the 8 ohm load. It doesn't allow the amp to produce as much power. So that leaves only the 2 ohm, with coils in series and subs in parallel. It looks like this:

97d7e1b.gif
Hope this helps. If it does, please rate as "FixYa".

Apr 27, 2009 | Rockford Fosgate Power 1500BD 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
Retry.
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...

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...

2 Answers

Rockford Fosgate 800a2 To 2 SVC 2ohm subs


Ok.. Bridge the two sub into 4ohm than bridge to amp.


So. this how it goes.

sub1 + -
to      | |
sub2 - +
=      4ohm
       

           From Sub
                Two
            -          +  
            |           |
amp (L) - + (R)- +


This will use the full potiental of RF 800a2 amp. I believe it like 1153 watts max out.

Sep 26, 2007 | Rockford Fosgate Punch 800a2 Car Audio...

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