I am going to be installing 2 amplifiers. Can I just hook seperate spades for both ground wires and bolt them to the same bolt or do I have to use a distribution block?

 

a distro block would reduce the change of ground loops in
your system. Also you do not want to use an exiting bolt. Make your
own ground point.

 

Would using 2 different ground points work?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by phayzeone &raquo;</TD></TR><TR><TD CLASS="quote">Would using 2 different ground points work?</TD></TR></TABLE> Ground both amps at same point, as close to amps as possible, don't use disto. block, [just resistence at the connections] use an existing bolt, [why drill a hole in your car] 94


Modified by fcm at 7:05 AM 4/26/2005

 

I agree with fcm. If amps are in the truck go to the seat belt bolts. Clean the metal b4 you ground it and use ONE point.

 

sounds good! thanks for the help

 

I have two amps and they share the same bolt in the trunk, use the same guage wire for both and keep the wires short as posible.

 

you really should ground the seperatly, if they are grounded together you could get noise. i may be new to the h t forum but have been install car audio for 7 years. so i hope i can help.

 

Last time i hooked up a system that included two amps I grounded them separately, and it worked fine.

 

Added resistance from a 1" x 2" dist. block? Minimal to the extent that you will never notice a difference in voltage. And always ground to the same point.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by bigapple427 &raquo;</TD></TR><TR><TD CLASS="quote">you really should ground the seperatly, if they are grounded together you could get noise. i may be new to the h t forum but have been install car audio for 7 years. so i hope i can help.</TD></TR></TABLE> Over 30 years grounding amps at diff. points is what can cause a ground loop. 94

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Electrodynamic &raquo;</TD></TR><TR><TD CLASS="quote">Added resistance from a 1" x 2" dist. block? Minimal to the extent that you will never notice a difference in voltage. And always ground to the same point.</TD></TR></TABLE>Yea maybe when you first hook it up, but check it 6mo. later, after the connections have had time to oxidize a bit. 94

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by fcm &raquo;</TD></TR><TR><TD CLASS="quote">Yea maybe when you first hook it up, but check it 6mo. later, after the connections have had time to oxidize a bit. 94</TD></TR></TABLE>

good point, with oxidization in mind.. is it a good idea to resand/clean off our grounds seasonally?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by bigapple427 &raquo;</TD></TR><TR><TD CLASS="quote">you really should ground the seperatly, if they are grounded together you could get noise. i may be new to the h t forum but have been install car audio for 7 years. so i hope i can help.</TD></TR></TABLE>
doubtful though. I did add a new bolt to my ground though.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by CooBlueDAB &raquo;</TD></TR><TR><TD CLASS="quote">

good point, with oxidization in mind.. is it a good idea to resand/clean off our grounds seasonally?</TD></TR></TABLE>If term. are soldered to the wire, and the term is bolted down, [tight connection] there should be no need to clean the contact points. 94

 

I use distribution blocks and they work just fine had em in my monte carlo my hatch and my truck never had to clean never any problems. Just my$.02

 

My brother use to be an installer and I was looking through his stuff. He had a distribution block just lying around. I might as well use it. He also told me to ground from the same spot if I don't use the distribution block

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by bigapple427 &raquo;</TD></TR><TR><TD CLASS="quote">you really should ground the seperatly, if they are grounded together you could get noise. i may be new to the h t forum but have been install car audio for 7 years. so i hope i can help.</TD></TR></TABLE>

Wrong. And run a ground from the back of your deck and ground at same location of amp ground as well to further reduce the possibility of ground loop. In car stereo industry is referred to as "return ground"

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SirRevvs &raquo;</TD></TR><TR><TD CLASS="quote">

Wrong. And run a ground from the back of your deck and ground at same location of amp ground as well to further reduce the possibility of ground loop. In car stereo industry is referred to as "return ground"</TD></TR></TABLE>Mostly done from chassis of HU to chassis of amp, but can cause noise just as much as get rid of it. 94

ps. I always run a "dump ground" from chassis of HU along with the trigger wire, on problem systems, [HU and amp combos that I have had problems with] just in case I need it, [ about 10% of the time] Hate to have to pull it all apart just to run a wire, after its all together, doing set up and testing, only to find I have a little alt. whine.


Modified by fcm at 6:51 PM 4/30/2005