Question about Infinity Reference 1211a Car Audio Amplifier

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Trying to wire my amp to my subs

I have two Rockford Fosgate P2D210 subs and an Infinity Reference 1211a amp. I do not really know how to wire them, right now I have a positive and negative on each sub wired together then a positive from the amp going to each of the positive terminals on the sub same thing for negative, is that right?

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  • Anonymous Mar 16, 2014

    I have 2 out puts on a bass inferno amp which is the right positive and negative output

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No thats not it you are lucky you havent burned it up like that. wire each speaker to its own source positive and negative, you loose power when you bridge an amp and use two speakers, its best to hook up without bridging you will get more volume that way.

Posted on Dec 19, 2007

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Posted on Jan 02, 2017

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Does anybody know what watt this is. it's sosed to be a 2400 watt and why does it have 2 ports on each side to hook up speaker wire And what's the best way to run it with a 800 watt Rockford fosgate


dual voice coil subs hook up mono on amp, from amp - from right side + from left side of amp run to sub n then jumper wires from one side of sub to the other side goes negative jumps on positive and positive jumps on negative

Apr 03, 2015 | Rockford Fosgate Car Audio & Video

1 Answer

Bass level is the same @ all volume levels


your problem is the wiring... but it is really hard for me to see where the problem is..

is there a way for you to send a picture of what you have done?

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1 Answer

Wireing 12inch dvc 4 ohm subs


well rockford has a simple site to wire up your subs shows you how to configure them go to rockford fosgate woofer wiring wizard. and itll show you what you want to know..

Jan 03, 2013 | Rockford Fosgate Car Audio & Video

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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 four channel rockfor fosgate amp and I need to know hows the best way to connect Infinity Reference 1252w Car Subwoofers


Rockford fosgate usually work best with 2 ohm speakers. Depending on the resistance of your speakers, will then give you best connection. Check the resistance for the subwoofers. If the subwoofers are two ohm then connect them directly right and left. But if they are 4 ohm connect them parrallel (positive to postive, negative to negative and bridge the amp.) Good Luck, please rate.

May 26, 2010 | Infinity Reference 1252W Subwoofer - 12"...

1 Answer

Reference 1211a Car Audio Amplifier: stays in protection mode...


Has an internal issue, if you know how to use a ohm meter, check the resistance of the wire on the interior of the amp, also check the fuses, ground, and power wire clean up the ground wire where it is connected to the vehicle

May 16, 2010 | Infinity Reference 1211a Car Audio...

2 Answers

Infinity 1211a @ 2 Ohms


Hello monkey_flea, Your subs will share the amp output. And if you are not careful, you'll end up blowing them. The amp puts out 1300 watts RMS at 2ohms, the subs have an RMS power range of from 75-350 watts, and you'll be driving them with 650 watts each. A better power match would be to series the subs to present an 8ohm final load. This will reduce the output power to a level the subs can handle. Or you could buy 2 more 12.1's and connect them series-parallel for a 4ohm load and each sub would still be getting 325 watts RMS, just about the maximum they are rated to handle. Hope this helps.

Jun 03, 2009 | Infinity Reference 1211a Car Audio...

1 Answer

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Try the head unit settings as depending on the head unit it can controll the amp sepratly

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1 Answer

Help with CVR 12 (kickers) and a Power 1050 s amp (Rockford Fosgate)


Send me your email account and i will draw you a diagram and send it to you there. I will need to know if the ohms of each sub as well as the amp. I'll also need to know if the subs come with one or two voice coils.
Ciza

Nov 04, 2008 | Rockford Fosgate Power 1050S Car Audio...

1 Answer

1211a amplifier


if your amp. work in bridge you can attach + 1st channel and + 2st channel to your sub woofer. by series 2 ohm you have 4 ohm sub woofer.

Sep 26, 2008 | Infinity Reference 1211a Car Audio...

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