Some reading material for the masses. Oh yeah, steel chassis are NOT
the way to ground an electrical device!

http://www.adireaudio.com/tech_papers/vc_wire.htm

I located this while searching for speaker manufacturers that use
silver wire in their VCs.

Paul Hanley

Interesting ... thanks!!

Garrett

Paul Hanley wrote:

Some reading material for the masses. Oh yeah, steel chassis are NOT
the way to ground an electrical device!

http://www.adireaudio.com/tech_papers/vc_wire.htm

I located this while searching for speaker manufacturers that use
silver wire in their VCs.

Paul Hanley

Why would a manufacturer use silver? Yes, it's better than copper, but it
tarnishes way too easily for car use.

Paul Vina




I located this while searching for speaker manufacturers that use
silver wire in their VCs.

Paul Hanley

In article ,
"Mark Zarella" seesigfile wrote:

Because multiple points with diferent levels of resistance may make
the signal decide to go elsewhere, like the interconnects.

Not likely. Path of least resistance.



There's no such thing in electricty, not counting plasma arcing.
Electrical flow divides up evenly as Ohm's law says it should. There
are no zero Ohm connections so there's always some voltage that can take
another path.

But not all of the 14.4V are going back to the battery via the
chassis. Some escape through the xconnects, such as in my case.
Especially given the conditions being a chassis ground. I though about
disconnecting the shielding on one side of my xconnects, so I'll
proabbly see what that does first. However, I'm not certain if the
preamp in the HU and if the amps use isolated power supplies.

On Thu, 24 Jul 2003 22:53:51 -0400, "Mark Zarella" seesigfile wrote:

Not likely. Path of least resistance.



There's no such thing in electricty, not counting plasma arcing.
Electrical flow divides up evenly as Ohm's law says it should. There
are no zero Ohm connections so there's always some voltage that can take
another path.

Gee, thanks for the tutorial. I certainly wasn't suggesting that the
electricity starts to go one direction, stops at the red light, does a
3-point turn and goes elsewhere!

The point of my post was that the signal is not "going to go elsewhere"
under the conditions described.

But not all of the 14.4V are going back to the battery via the
chassis.

So? The same is true with 0 gauge wire run directly to the battery.

Some escape through the xconnects, such as in my case.

I think you're making your personal case into a "typical case". Let me at
yours and it's fixed under an hour.

On Thu, 24 Jul 2003 23:41:17 -0400, "Mark Zarella" seesigfile wrote:

But not all of the 14.4V are going back to the battery via the
chassis.

So? The same is true with 0 gauge wire run directly to the battery.

Less of a chance according to your path of least resistance theory now
isn't there?


Some escape through the xconnects, such as in my case.

I think you're making your personal case into a "typical case". Let me at
yours and it's fixed under an hour.

I believe you could Mark. I plan to do the same this weekend by first
disconnecting the shielding on the xconnects, and then adding a simple
line from the battery for a common ground for the HU and amps if the
xconnect trick doesn't do it.

-Paul Hanley

But not all of the 14.4V are going back to the battery via the
chassis.

So? The same is true with 0 gauge wire run directly to the battery.

Less of a chance according to your path of least resistance theory now
isn't there?

Who cares how much of a chance there is? If it's done correctly, it's
negligible in either case. I can't for the life of me figure out why people
always seem to argue about which way is the best way to reduce inaudible
things.

I think you're making your personal case into a "typical case". Let me
at
yours and it's fixed under an hour.

I believe you could Mark. I plan to do the same this weekend by first
disconnecting the shielding on the xconnects, and then adding a simple
line from the battery for a common ground for the HU and amps if the
xconnect trick doesn't do it.

What have you done so far to address the problem?

I've moved the ground for the amps to the seat belt bolt into the
chassis. Moved the ground for the HU to the tubular steel dash frame
that is mounted to the chassis (I connected the ground to the point
where the tube bolts into the chassis).

I have to find someone that has a portable CD player so I can
eliminate the xconnects and HU at this point, as well as implement the
steps I mentioned earlier.

The problem is that I can hear the tiny clicks of the volume knob
through the speakers when I raise or lower the volume. I also hear a
light buzzing sound when the gains are set very high (initial setup
revealed this). Of course, the gains have been adjusted at this point
so I don't hear that anymore, but clearly the problem must still
exist. We shall see if there is fair weather this weekend.

System is as of now:

Alpine CDA7995
(2) ESX Q752s
1 Image Dynamics IDQ12 v2 in sealed 0.88 box
DEI 3065 component set (soon to be a/d/s AL6s)

Nothing fancy.


I believe you could Mark. I plan to do the same this weekend by first
disconnecting the shielding on the xconnects, and then adding a simple
line from the battery for a common ground for the HU and amps if the
xconnect trick doesn't do it.

What have you done so far to address the problem?