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

why multiple runs of power/ground cables?

Old 11-24-2007, 01:36 PM
  #1  
500 Watt CAFz'r
Thread Starter
 
n_o_s_21's Avatar
 
Join Date: Jun 2007
Posts: 912
why multiple runs of power/ground cables?

I am confused as to the logic behind this. I know alot of people are doing it, but why? especially with smaller cables(ie 4 and 2 gauge). the way I see it, four runs or 1 or 0 gauge is overkill. a battery can only produce so much electricity, and cables aren't 100 % efficiant, so if you add more cables, doesn't this lead to more loss of power? also if someone is running 4 runs of 4 gauge, wouldn't it make sense to run 2 runs of 2 gauge instead, or perhaps a single run of 0? I just don't see how running more cable is more efficiant than running less cable, especially in a 1 amp, 1 battery setup. if someone could clear this up for me it would be great.
n_o_s_21 is offline  
Old 11-24-2007, 01:44 PM
  #2  
4000 Watt CAFz'r
iTrader: (7)
 
Prolifik's Avatar
 
Join Date: Jan 2005
Posts: 4,180
u get more current faster from battery to amp
Prolifik is offline  
Old 11-24-2007, 01:47 PM
  #3  
2000 Watt CAFz'r
iTrader: (20)
 
Killer_klown187's Avatar
 
Join Date: Dec 2005
Posts: 2,810
YULI STop Lying, ITs so all you spl guys' cars stay on the ground when the bass hits REALLY hard!! lol.. What Yuli says is right! lol
Killer_klown187 is offline  
Old 11-24-2007, 01:50 PM
  #4  
50 Watt CAFz'r
 
Twenty2's Avatar
 
Join Date: Sep 2006
Posts: 85
it's like 4 taps instead of one in your sink
sure it's technically less efficient (more loss then with a single tap) if the water pressure is there (or in this case hard amps) then the sink will fill faster then with one tap

it all depends on what your doing
I'd run multiple lruns for burping purposes, but my daily sq ride I'm not going to put more then one 0g run in
Twenty2 is offline  
Old 11-24-2007, 02:23 PM
  #5  
50 Watt CAFz'r
 
fuzionrolla's Avatar
 
Join Date: Nov 2006
Posts: 217
ILL ADD A QUESTION TO THIS ONE ... at what point do you know you need multiple runs ? would it make a big difference on my two kicker L-5's and my 1000 watt rms massive audio amp ?
fuzionrolla is offline  
Old 11-24-2007, 02:29 PM
  #6  
4000 Watt CAFz'r
iTrader: (7)
 
Prolifik's Avatar
 
Join Date: Jan 2005
Posts: 4,180
u've put enough when you stop gaining spl.
Prolifik is offline  
Old 11-24-2007, 03:41 PM
  #7  
2000 Watt CAFz'r
iTrader: (20)
 
Killer_klown187's Avatar
 
Join Date: Dec 2005
Posts: 2,810
hmm, I guess I need more wire :P ALOT :P
Killer_klown187 is offline  
Old 11-24-2007, 04:22 PM
  #8  
Yankee
 
JohnVroom's Avatar
 
Join Date: Oct 2003
Posts: 3,599
Yuli is right, more parallel runs reduces system resistance and opens more lane of traffic flow for electrons, not terribly efficient but fractions of db's matter
JohnVroom is offline  
Old 11-24-2007, 05:26 PM
  #9  
Merry Christmass from CCA
iTrader: (2)
 
Sassmaster's Avatar
 
Join Date: May 2002
Posts: 2,579
The ESR (or equivalent Series Resistance) of the battery is rpetty easy to find out... take the voltage, divide by the cranking amps (so say 12 volts / 800 amps = 0.015 ohms) a run of 1/0 might have a resistance of .02 ohms... which has cut your available current by over half, 2 runs makes the resistance of the wire .01 ohms, which is better, so multiple runs helps your batter work harder
Sassmaster is offline  
Old 11-24-2007, 06:21 PM
  #10  
50 Watt CAFz'r
 
fuzionrolla's Avatar
 
Join Date: Nov 2006
Posts: 217
sounds like a whole lot of fun i know a bit about audio but had no clue that would make a difference i guess im gonna have to get a better amp and battery and run more wires and see if i can upper my 140.7 lmao so sad
fuzionrolla is offline  

Thread Tools
Search this Thread
Quick Reply: why multiple runs of power/ground cables?


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.