Notices
Audio, Security, & Automotive Lighting Troubleshoot wiring problems and get equipment suggestions all in one place. Now expanded to include Automotive Lighting

amp ground wire problem

Old 08-15-2006, 08:12 PM
  #1  
Civic_NaTioN
Junior Member
Thread Starter
 
Civic_NaTioN's Avatar
 
Join Date: Aug 2006
Posts: 24
Likes: 0
Received 0 Likes on 0 Posts
Default amp ground wire problem

i was installing subs in my car
everything was goin fine
untill i try to ground the black wire, which runs from
amp to ground location
the other end of the ground wire which connects
to the amp was un-hooked and once the grounding
was complete i hooked the wire into the amp

as i was hooking the ground wire into the amp
there were big sparks at the ground location
it surely didnt look normal to me, as i have never seen
such big sparks while connecting ground wire to the amp
then i checked and both the amp fuses were blown

am i doing something wrong here?
wat could be the reason behind blown fusues and big sparks?
plz help!
Old 08-15-2006, 08:25 PM
  #2  
twinring
Senior Member
 
twinring's Avatar
 
Join Date: Oct 2004
Location: Japan
Posts: 444
Likes: 0
Received 0 Likes on 0 Posts
Default

big amps and big subs require steady amperage and good ground, You should hook up the ground first and then the Hot lead. and the entire system should be shut off.
Old 08-15-2006, 08:38 PM
  #3  
Civic_NaTioN
Junior Member
Thread Starter
 
Civic_NaTioN's Avatar
 
Join Date: Aug 2006
Posts: 24
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by twinring
big amps and big subs require steady amperage and good ground, You should hook up the ground first and then the Hot lead. and the entire system should be shut off.
oh ok
btw is it ok to use washer and nut to secure the ground connection
anywhere on the metal within the car?
also i didnt unhook the terminal while i was installing subs....

this time i will unhook the positive terminal
and secure the ground connection first
then secure the red hot wire
and then hook the terminal back.....
are those steps ok?
Old 08-17-2006, 04:41 PM
  #4  
josmialo
Junior Member
 
josmialo's Avatar
 
Join Date: Aug 2006
Location: Ann Arbor, Michigan
Posts: 4
Likes: 0
Received 0 Likes on 0 Posts
Default

Make sure your ground is good before hooking it up to the amp. Get some sand paper and sand the area where your ground wire hooks up to be sure it is a good connection. i also recommend checking it with a volt meter to be sure it is good. other than that your steps are fine. and yes a washer and nut will work fine.

Last edited by josmialo; 08-17-2006 at 04:43 PM.
Old 08-18-2006, 12:17 PM
  #5  
dleccord
Member
 
dleccord's Avatar
 
Join Date: Mar 2006
Posts: 395
Likes: 0
Received 0 Likes on 0 Posts
Default

It doesnt matter whether to install the positive or negative first. You should always disconnect the negative post on your batter when installing amps.
Old 01-17-2009, 10:56 AM
  #6  
nemisis34
Junior Member
 
nemisis34's Avatar
 
Join Date: Jan 2009
Location: Burleson, Texas
Posts: 1
Likes: 0
Received 0 Likes on 0 Posts
Default

Actually it can matter, connecting it while it's hot. I'm just being honest, it's a recommended action to disconnect battery power to the amp while making connections to the amp(s) or distribution block, or capacitor(s), and charge them up accordingly. Reason being that connecting it while it has power by the red(positive) wire first can induce a load through the audio cables, even if the amplifier is off, because some amp's internal capacitors must charge to the load and will charge from the closest thing there is to a ground. So always do power before audio cables too. Secondly I wouldn't recommend connecting audio cables if they are anywhere close to another amplifier's power cables, any contact can screw the amp's ground isolation circuitry or the head unit's amp. LOL



All times are GMT -8. The time now is 05:45 AM.