Series or Parallel

[Gazz]

What is this all about ?

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[mamey69 10+ year member]

Originally posted by Gazz What is this all about ?

in the way you wire your subs or the voice coils of the subs, if you wire them in series you double the ohms and if it´s in parallel you drop the ohms by the half...

and example...

wire 2 4ohms sub

in series you get a 8 ohm load (4+4)

in parallel you get a 2ohm load (4/2)

hope that clear your mind a little...

 

[yelhsa]

that clears our minds but what do you get out of this i would think the less ohms the better

like 1 or even .5 ohms

what im lost on is why will it kill your amp if you run less ohms than its stable at?

 

[Rockman 10+ year member]

Originally posted by yelhsa that clears our minds but what do you get out of this i would think the less ohms the better

like 1 or even .5 ohms

what im lost on is why will it kill your amp if you run less ohms than its stable at?

Because at some point the amplifier just doesn't have a big enough power supply to produce the addition current that the low impeadance can draw. At that point, things over heat, components get stressed and the smoke gets let out. Once the smoke is let out, things dont work..

 

[evo2k3 10+ year member]

in series you get a 8 ohm load (4+4)in parallel you get a 2ohm load (4/2)

QUOTE]

I know it was just an example, but be carefull with how you calculate different numbers of drivers....the actual way is series, add the resistances.....in paralell it is (1/r1+1/r2+1/r3)^-1= Rt

 

[Gauntlet 5,000+ posts]

in series you get a 8 ohm load (4+4)in parallel you get a 2ohm load (4/2)

I know that was an example, but the actual formula is:

Parallel: resistance of each coil / number of coils

Series: resistance of each coil X number of coils

 

[ChefJoe 10+ year member]

Gauntlet, you are incorrect. It's just a coincidence that parallel 4 ohm = 2 ohm load. The resistance of series adds and the resistance of parallel adds inversely.

 

[eengrms 10+ year member]

The actual parallel equation is quite simple:

1/Rtotal = 1/R1 + 1/R2 + 1/R3 + .... etc.

But...

1/Rtotal is not equal to: 1/(R1+R2+R3...) contrary to some people's opinions.

For example:

Four 8 Ohms speakers in Parallel.

1/Rtotal = 1/8 + 1/8 + 1/8 + 1/8

1/Rtotal = 1/2

Therefore Rtotal = 2 ohms

You would get a 0.5 ohm load with four 2 ohm speakers in parallel.

And for those people that say the equation is incorrect because it indicates a balanced system- That is exactly why it is correct.

 

[evo2k3 10+ year member]

Originally posted by eengrms The actual parallel equation is quite simple:

1/Rtotal = 1/R1 + 1/R2 + 1/R3 + .... etc.

kind of looks like

Originally posted by Evo2k3.....in paralell it is (1/r1+1/r2+1/r3)^-1= Rt

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[eengrms 10+ year member]

Originally posted by evo2k3 kind of looks like

 

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Technically... //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif