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Someone send me a link to understand DVC and 2/4/8 ohm operation

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Old Sep 1, 2002 | 01:33 PM
  #1  
poloz28's Avatar
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Post Someone send me a link to understand DVC and 2/4/8 ohm operation


i am going to buy some DVC subs and i want to know how to get the most out of them. like should i wire it for 2 ohm or 4? how do i do that? i need details, b/c i dont understand DVC. thanks alot

Paul
Old Sep 1, 2002 | 02:46 PM
  #2  
TopHatJimmy's Avatar
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From: IDAHO
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The answer is dependent on what configuration you will be working with.

The basics of DVC subs is this:
1) A dual 2 ohm subwoofer can only be a 1 or a 4 ohm sub. If you wire the voice coils in parallel it will be a 1 ohm sub. If you wire the voice coils in series it will be a 4 ohm sub.

2) A dual 4 ohm sub can only be a 2 or 8 ohm sub. If you wire the voice coils in parallel it will be a 2 ohm sub. If you wire the voice coils in series it will be an 8 ohm sub.

The reason they do this is to add flexability to the sub configuration.

Now, if you are going to run one DVC sub off of one 2 channel amp in bridged mode, you will need to use a dual 2 ohm sub and wire it in series to make it a 4 ohm sub. You need to do this because most bridged amps can only run safely at a 4 ohm load.

If you are running one DVC sub off of a 1 channel mono-block amp that is stable to 2 ohms, you will need a dual 4 ohm sub wired in parallel to make it a 2 ohm sub. This will allow the most efficient use of the amps power.

If you are running one DVC sub off of a 1 channel mono-block amp that is stable (dear god) to 1 ohm, you will need a dual 2 ohm sub wired in parallel to make it a 1 ohm sub.


If you are running 2 DVC subs off of a 2 channel amp, you have 2 ways of doing the same thing.
You can get two 4 ohm subs, wire each sub in parallel to make each one a 2 ohm sub, then wire one sub to each channel of the amp.

Or you can use two 4 ohm subs and wire each sub in series to make each one an 8 ohm sub, then bridge the amp and run the subs in parallel off of the amp.

You get the same load at the amp and the same power to the subs both ways, it's just 2 different ways of achieving the same thing....

Anyway, depending on your sub or subs, amp and the configuration you want to go with is how you decide which DVC sub to use.

If you have any more questions on this subject or about a specific sub/amp configuration drop me an email.
Old Sep 1, 2002 | 02:47 PM
  #3  
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try this web site http://www.jlaudio.com/tutorials/index.html

it helped me understand DVC's better.

John

[This message has been edited by john-e-boy (edited September 01, 2002).]

[This message has been edited by john-e-boy (edited September 01, 2002).]
Old Sep 1, 2002 | 08:14 PM
  #4  
poloz28's Avatar
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ok that was GREAT INFO on both of your parts. So here is the situation. i am thinking of getting an amp that is 225x2 RMS at 2 ohms (450x1 rms @ 4ohms/150x2 RMS @ 4 ohms) and two 10" DVC subs (dual 4 ohm coils). does that mean i can run the two 10"s at 225 Watts a peice if i run them both paralleled?
Old Sep 1, 2002 | 11:33 PM
  #5  
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Yes.
Wire each of your subs in parallel to make them 2 ohm speakers.
Then hook one to the left channel and one to the right channel.
That will run your amp at 2 ohm stereo.

Wiring the subs in series to make them 8 ohm speakers and then bridging your amp accomplishes the same thing, just different wiring...
2 ohm stereo, 4 ohm mono = same same.
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