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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.
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Hey well your gonna need to give more info. is the sub dual 2ohm dual 4ohm. if you have a dual 2 ohm you wire one + to one- (like a jumper wire)and then your other +.- go to your amp as 4ohms, if you have a dual 4ohm model and your amp can handel 2ohm stereo then wire your +to+ to +on the amp and the same for your -. it will bring a 4ohms to 2 ohms by connecting pos. to pos. and neg.to neg. then to your amp.
Hey i have looked over many rockford manuals,(i own a 300.1 my buddy owns a 325.1) and for there mono(.1) amps there hooked together on the inside so channel A+ and B + are cencted on the inside the amp. So you ither hook one 2ohm sub to channel A or you can hook 1 4ohm subs to channel A and 1 4ohm sub to channel B. There 2ohm stable so any lower will eventualy burn the amp out.
It depends if your sub is 4ohm svc, or 2ohm svc. 4ohm would take 4 subs wired in parallel, 2ohm would take 2 subs wired in parallel. But for a amp that big, subs that'll handle it are definitely gonna be dvc. I'd recommend 2 Orion 4ohm dvc hcca's. They come in either 15in or 12in. the 15s are louder if you have the space for them. As far as wiring goes, wire the voice coils on the subs in parallel to 2ohm per sub, then wire the 2 subs in parallel to 1ohm. Goodluck and congrats on the equipment, Orion is about as good as you can go for subs and amps. just be ready to lay down some dynamat cuz this system'll bloww your vehicle apart! good luck...
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.
it all depends on the impendance of your subs if u have duel 4ohm or duel 2ohm, 2 duel 4ohm speakers can be wired at 1ohm to the amp, and with a kx1200.1 that would be pushin 2400 peak and 1200rms 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
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.
The best you can do is connect the dual 2 ohm voice coils of each respective sub in series (4 ohms total per sub) and then connect each sub to one channel of the amp. This will give each sub 1000W, which is the rated maximum from Kicker.
I have 2 of these 12" running in a Large slot ported box with an:
"Ultra Linear UL2402"
600RMS X 2 @ 4Ohm (Stereo)
1200RMS X 2 @ 2Ohm (Stereo)
2400RMS X 1 @ 2Ohm (Mono)
Can be run in Tri-mode with 3 8Ohm subs, which these subs are. I have not tried this mode. This is
600RMS X 2 @ 4Ohm = Max RMS of your subs.
You should run the max of your subs, less wear on the amp you are using , and i doubt you will ever need to turn it up far before it blows out your trunk or window :P
1200RMS X 2 @ 2Ohm = Blown Subs!
Has 4 x 25amp fuses, most will tell you this only has an RMS of around 845, an "ultra linear circuit" produces twice the output power over Modern amps.
Can had on Ebay for around $100.
I bought mine for $101.
This Amp pounds, i could quickly tell a difference going from 300RMS X 2 @ 4Ohm with a Kenwood amp. I Had to turn all my settings down on the new amp to have a better balance in sound.