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how should i wire these subs?


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sthrnbmpn 
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Posted: June 08, 2011 at 2:54 PM / IP Logged  
the dvc is 2 ohm
the svc is 4 ohm
when you wire them in parallel it divides the ohm rating in half, rite? i could be wrong
1000 watts of lp, now need sum hp an mids
moham 
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Posted: June 08, 2011 at 3:00 PM / IP Logged  

Im not sure, all i remember is that when wiring in parrallel:

1/Total Resistance = 1/Resistance1 + 1/Resistance 2

So 1/2 + 1/4 = 1/1.33 = 0.75

I may be wrong aswell, i'll look into it.

moham 
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Posted: June 08, 2011 at 3:01 PM / IP Logged  

But wait lol, if i had two 4 ohm subs they would make 2 ohm right?

So it wouldnt make sense to have a 4 ohm and a 2 ohm making 3 ohm how should i wire these subs? - Page 2 -- posted image. It should ofcourse be lower than 2 ohm.

the12volt 
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Posted: June 08, 2011 at 3:02 PM / IP Logged  

sthrnbmpn wrote:
so itll be a 3 ohm load on your amp, not including box rise,
so at 2ohms your 850 then 3ohms would be 625 watts

the dvc is 2 ohm

the svc is 4 ohm
when you wire them in parallel it divides the ohm rating in half, rite? i could be wrong

sthrnbmpn, no! Have a peek here: https://www.the12volt.com/caraudio/boxcalcs.asp#par

how should i wire these subs? - Page 2 -- posted image. the12volt • Support the12volt.com
moham 
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Posted: June 08, 2011 at 3:05 PM / IP Logged  

Ah good, so it is 1.33 ohms, That should definatly be allowing my amp to provide at least 1000watts of rms.

So hopefully my subs arnt being underpowered now how should i wire these subs? - Page 2 -- posted image.

sthrnbmpn 
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Posted: June 08, 2011 at 3:06 PM / IP Logged  
ohm meter will not lie lol, i got a pair of 2ohm dvc kickers an there wired in parallel, they ohm out at 1.3 ohms when it should 1 ohm
both subs are that way,
i wired both subs in series with each other an its a 2.6 final load, go figure im losing amp efficiancy cause i cant get it down to 2 ohms
1000 watts of lp, now need sum hp an mids
moham 
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Posted: June 08, 2011 at 3:11 PM / IP Logged  

Damn thats a pain lol, you cant get it down to 2 ohm and neither can you wire them in parrallel because it'll go below 1 ohm how should i wire these subs? - Page 2 -- posted image.

Is your amp 1 ohm stable? or just 2 ohm?

sthrnbmpn 
Copper - Posts: 70
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Location: Tennessee, United States
Posted: June 08, 2011 at 3:16 PM / IP Logged  
ive tried it at .8 ohm an it doesnt last long, not loud anyways lol, so 4 2 ohm dvc's would get me at 1.6 ohms, alpines arent stable that low may be if i didnt have voltage drop it would probly be ok
1000 watts of lp, now need sum hp an mids
moham 
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Posted: June 08, 2011 at 3:20 PM / IP Logged  
What are your rms values for the subs + amp?
moham 
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Joined: June 08, 2011
Posted: June 08, 2011 at 3:21 PM / IP Logged  

I worked out that with my amp at 1.33ohms, it should be giving out 1275rms, which is alright seeming as my joint subs rms is 1300W.

I was wondering how close are your values if you take into consideration that your getting 2.6 ohms?

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