General Discussion General discussion about all things car audio, from pioneer, orion, alpine and eclipse.

3 ohm load

Thread Tools
 
Search this Thread
 
Old 03-31-2009, 06:16 PM
  #21  
500 Watt CAFz'r
 
kevmurray's Avatar
 
Join Date: Jan 2008
Posts: 537
Originally Posted by Father Yuli
homie, either your wiring job or your calculations were way off. you should have had a final load of 3.75 ohm. or maybe the 4 ohm sub had a bad coil. but there is no way you are supposed to get 2-2/3 ohm load with those coil configurations any way you wire them.
8 ohms in parallel with 4 ohms is 2.66 ohms.
kevmurray is offline  
Old 03-31-2009, 10:28 PM
  #22  
Level 3 Supporter
iTrader: (17)
 
Father Yuli's Avatar
 
Join Date: Oct 2000
Posts: 11,606
Originally Posted by kevmurray
8 ohms in parallel with 4 ohms is 2.66 ohms.
yah u are right, i retract my statement.
Father Yuli is offline  
Old 04-01-2009, 01:40 PM
  #23  
2000 Watt CAFz'r
 
maltesechicken's Avatar
 
Join Date: Jan 2001
Posts: 2,026
Originally Posted by Father Yuli
homie, either your wiring job or your calculations were way off. you should have had a final load of 3.75 ohm. or maybe the 4 ohm sub had a bad coil. but there is no way you are supposed to get 2-2/3 ohm load with those coil configurations any way you wire them.
To get a 3.75 ohm load with a 4 ohm woofer, you would need to parallel that with a 60 ohm woofer . . . Here's a helpful formula I found for figuring that out:

Originally Posted by Father Yuli
lol freshy

you would get 1.333 ohm if you wired it that way.

the formula is,

1/[(1/ohm)+(1/ohm)]

so you'd get 1/[(1/4)+(1/2)] = 1/0.75 = 1.333

the way you'd wanna wire that is connecting all 3 coils together.
1/[1/4+1/8] = 1/0.375 = 2.66
1/[1/4+1/60] = 1/0.266 = 3.75
maltesechicken is offline  
Old 04-01-2009, 01:43 PM
  #24  
Level 3 Supporter
iTrader: (17)
 
Father Yuli's Avatar
 
Join Date: Oct 2000
Posts: 11,606
thanks for the formula, i've been looking all over the place
Father Yuli is offline  
Old 04-01-2009, 04:57 PM
  #25  
500 Watt CAFz'r
 
Njord's Avatar
 
Join Date: Oct 2007
Posts: 519
I have a better one for just 2 resistors in parallel.

(R1*R2) / (R1+R2)

Only works for 2 resistors though (or sub impedance)
Njord is offline  
Old 04-01-2009, 08:04 PM
  #26  
2000 Watt CAFz'r
iTrader: (11)
 
BigRedGuy's Avatar
 
Join Date: Nov 2000
Posts: 2,383
Talking

Originally Posted by Father Yuli
thanks for the formula, i've been looking all over the place
Is that the sarcas-o-meter I hear going off?.....
BigRedGuy is offline  
Old 04-01-2009, 11:42 PM
  #27  
Level 3 Supporter
iTrader: (17)
 
Father Yuli's Avatar
 
Join Date: Oct 2000
Posts: 11,606
Originally Posted by BigRedGuy
Is that the sarcas-o-meter I hear going off?.....
WE ARE IN THE RED!!!!!!

Father Yuli is offline  
Old 04-02-2009, 08:10 PM
  #28  
2000 Watt CAFz'r
iTrader: (11)
 
BigRedGuy's Avatar
 
Join Date: Nov 2000
Posts: 2,383
Talking

Originally Posted by Father Yuli
WE ARE IN THE RED!!!!!!

That's big red to you, sonny.......
BigRedGuy is offline  
Old 04-02-2009, 10:10 PM
  #29  
Level 3 Supporter
iTrader: (17)
 
Father Yuli's Avatar
 
Join Date: Oct 2000
Posts: 11,606
lol, I'm in the Big Red? that just doesnt sound right.
Father Yuli is offline  
Old 04-03-2009, 07:57 AM
  #30  
2000 Watt CAFz'r
iTrader: (11)
 
BigRedGuy's Avatar
 
Join Date: Nov 2000
Posts: 2,383
Talking

Originally Posted by Father Yuli
lol, I'm in the Big Red? that just doesnt sound right.
Maybe not, but it is f&%$#ing loud......
BigRedGuy is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
scroudt111
General Discussion
6
06-09-2006 10:42 AM
exec849
General SPL
6
06-06-2006 08:52 PM
simple992
General Discussion
5
04-10-2006 08:15 PM
Speakerman
General Discussion
11
01-07-2005 01:18 AM



Quick Reply: 3 ohm load



All times are GMT -5. The time now is 01:24 AM.