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2ohm vs. 4ohm

Hey just wondering what the differnece is between a 4ohm+4ohm sub and a 2ohm+2ohm.

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Re: 2ohm vs. 4ohm

The 4 ohm has more wire. The more wire wraps you have in your voice coil produce more ohms. The Voice coils move up and down based on Current flow through the Coils. You get higher current flow with 2 ohms, but you need a hefty AMP to drive it. Also 2 ohm Speakers are easy to add up without exceeding the 8 ohm limit of most AMPS.

Posted on Nov 05, 2007

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How many svc subs at 4ohm does it take to get this amp to 1ohm stable and can you reccomend a good sub combo for this amp whether it be dvc or svc

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Hello matt225281.

Since the Tantrum only lists specifications into a 4ohm load, you need to make sure that the final impedance of your DVC sub is 4ohms or greater. So a sub with either 2ohm or 4ohm voice coils needs to have the coils wired in series with a jumper between the positive of one coil to the negative of the other and the remaining positive and negative to the amp speaker terminals. Paralleling the voice coils will result in a 1ohm or 2ohm load to the amp and it will overheat, go into protection or possibly fail completely.

If your sub has 2ohm voice coils, the load will be 4ohms which allows the amp to produce maximum power. The final impedance with 4ohm voice coils will be 8ohms. The power will be reduced, but the amp will operate without overheating.

Either set of the speaker terminals on the amp can be used. They are connected internally so it doesn't matter which one you use.

Hope this helps.

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Hello storres18,

If you have the Kicker model number 06CVX122, with dual 2ohm voice coils, they can be connected to a mono amp at 2ohms. First jumper the voice coils in series, the dotted positive (+) to the undotted negative (-) (or vice versa). Each sub is now 4ohms. Then wire both of the remaining positives and negatives together on the amp terminals (in parallel). The amp sees a 2ohm load. Here's the diagram:

If you have the Kicker model number 06CVX124 with dual 4ohm voice coils, they cannot be wired to present a 2ohm load. They can only be wired as a 1ohm load (too low for the amp) or as a 4ohm load (at reduced power). Here is the diagram of the 4ohm wiring:

Hope this helps.

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I have 2 kicker l7 12 dual voice coil subs.. i just friend a hifonics 1600w amp and am wondering if a kx 1200.1 kicker amp will be enough to power them they are 750w rms a piece .. can these be run at 1...

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if ya have 2 duel 2ohm speaker than you can only wire them to 2ohm and would be pushing 1200 peak and 600 rms with the kx1200, so if you have the duel 4ohm i would go with the kx1200.1 and if u have the duel 2ohm i would go with the hifoncs

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U need to make sure your subs are wired correctly. And u need to make sure all your speakers are at the same ohm load. If u hook up two subs on one channel and two more on the other one u need to make sure that your subs are all 2ohm or 4ohm subs cause if u got two 4ohm subs ran parrallel then u will have a 2ohm setting and if both of them are 2ohm subs them your load will be a 1ohm load witch could harm your amp unless its an 1ohm stable amplifier.

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heres sum extra reading materials:

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