03-11-2012, 12:53 PM | #1 |
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Help with wiring my 2ohm Sub
Another stereo noob installer question.....
I have a 5 ch. amp that puts out 2ohms to sub and a dual coil 2ohm sub. I thought I'd just be running one pair of wires to the sub and connecting to the amp. Looking at this website - http://www.the12volt.com/caraudio/wo...1&I=22#results - which wiring config do I want? Parrallel for a 1ohm load or Series for a 4ohm load? Thanks |
03-11-2012, 03:29 PM | #2 |
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You want to wire it series at 4 ohms. If the amp only can handle a 2 ohm load, parralel wiring wont work.
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03-11-2012, 04:22 PM | #3 |
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Coogz, if I remember correctly you are running a XD700/5. On page 10 of the manual it says, "Subwoofer loads below 2 ohms nominal are not recommended and may cause the amplifier to initiate a protection mode which reduces power output." So you'll need to wire it in series (4 ohms). Just remember the XD700/5 subwoofer output is 200W@4ohms or 300W@2ohms.
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03-11-2012, 05:20 PM | #4 | |
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Quote:
Anyway, what Edge said is correct. wire it in series (4ohms). |
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03-11-2012, 05:25 PM | #5 | |
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Quote:
no it doesn't an amp doesn't put out a resistance.
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03-11-2012, 05:50 PM | #6 |
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Thanks guys.....
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03-11-2012, 05:54 PM | #7 | |
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Quote:
I guess 200w will have to do. |
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03-11-2012, 09:35 PM | #8 |
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I did the same thing and sent the 4 ohm subs back and had the 2 ohm subs shipped not knowing that 2 ohm DVC subs run at 1 or 4, not 2 ohm net. Still haven't got an explanation as to why they call it a 2 ohm if it wont run both coils at 2 ohm net unless you use two of them in parallel.
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03-11-2012, 10:26 PM | #9 |
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I suspected as much. I went with a JL 12W3v3-2 with the same amp but mine hasn't been delivered yet.
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03-12-2012, 12:57 AM | #10 | |
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Quote:
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03-12-2012, 02:05 AM | #11 |
dont u mean series/parralel to get 2ohm dvc subs to push a 2ohm load?
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03-12-2012, 07:27 AM | #12 |
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No, if you take a multimeter and test each set of poles on each voice coil separately, they will read 2ohm. Now if you series them or parallel them together you get 4ohm or 1 ohm. CWI is asking why they dont show a total impedance with both voice coils either series or parallel, but i'm saying is they dont do that because voice coils can be wired individually to their own amps and thats why if it says, 2ohm DVC(dual voice coil), it tells the impedance of each coil by themselves.
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03-12-2012, 07:46 AM | #13 | |
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Quote:
I will rephrase the question. Why is a DVC 2 ohm sub called a 2 ohm sub if you can not use it as a whole powering both coils with a 2 ohm amp. Same with a 4 ohm DVC sub. Why call it 4 ohm if it has to run at either 2 or 8 ohm on a single amp. I don't want to hear "it will run at that ohm rating if you power just one coil. I want to know why it is sold as that when it wont run at full capacity at that rating. I don't buy a bottle of whiskey and water it down by mixing it with 50 % water. I'm not going to limit a speaker at half it's potential either. I know it's the way it is. I have 2 12" subs, 2 0hm DVC, and a 1000 watt amp for each, 2 or 4 ohm. I have to run them at 4 ohm to run a single amp to each. An "expert" explanation will do. I asked this question before and no one has expalain it accurately. If you are not knowledgable, don't try to answer. I thought we went through this. Not using both coils. Not on a single amp.
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03-12-2012, 07:56 AM | #14 | |
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Quote:
It simply says 2 ohm DVC on it's title. This would lead someone that does not know how DVC subs are made or utilized to think it would be a fully functioning unit capable of running on a single 2 ohm amp.
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