Question about Rockford Fosgate Punch 800a2 Car Audio Amplifier

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Rockford Fosgate 800a2 To 2 SVC 2ohm subs

Ok, I have two Kicker CompVT CVT 12" subs that push 2-ohms each. I also have the Rockford Fosgate 800a2 powering them. My question is how do i wire the system to bridge the amp to two ohms and run the subs at two ohms, if this is even possible. If not, how should I wire it.

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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.

Posted on May 29, 2008

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Your subs are single 2 ohm voice coils , so your only option ,if you bridge that amp is at 4 ohms with the 2 subs running in parralel ; positive to positive , neg to neg because if you run them in series youll be @ 1 ohm and that amp is going to get real hot , itll sound good for a little while but its not recommended , hope this helps

Posted on Sep 26, 2007

  • Bradley Fritz Jun 08, 2013

    Think ya flipped that around! Parallel will bring you down to 1 ohm, series will bump you up to 4 ohm's. Run speaker A positive to Speaker B negative, then Spk A negative to Spk B positive= 4ohm's. the other way you're running 1 ohm and with that amp you'll be able to fry your eggs for breakfast on it if you don't blow it first. Think Donovan just had it mixed up.

  • Bradley Fritz Jun 08, 2013

    Tip parallel drops ohm rating. Series raises.

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Overheating amp problem...easially fixed, i think....


depends on the sub rating.

if subs are 2 ohm rated you can ONLY get 1 or 4 ohms..
2x2=4ohm series
2/2=1ohm parallel

if subs are 4 ohm rated wire in parallel
4/2=2ohm

look it up google for diagram if you need one.

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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".

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Is this ok?


yes 2ohm should be fine for that amp no problem

But dont bridge it any lower than 2 ohms.

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