[urq] Re: Alternator noise to power AMP

[Ben Swann]

Well you may have something there, as I ran all wiresl through the same
"conduit" - all wrapped up nice and pretty.  They only run together for a
few feet just berfore the amp, but may be enough.  Also the AMP is mounted
right above the gas tank, and the AMP chassis is probably directly in
contact with it - the amp fits perfectly there.  Maybe I need to change the
location - this is a big AMP and I was trying to locate it so it wouldn't
take up any "usable" trunk space.

I probably ought to get a small amp - don't need this much power.  I could
probably do alright by just taking the outs directly off the stereo through
some monster cable.  The stereo is 160 Watts( 40X4), so probably enough.
Then I could power a subwoofer with the Amp - I wouldn't hear any alt whine
then, correct?

The system does sound nice until I turn the engine on.

Ben
----- Original Message -----
From: "Ingo Rautenberg" <irautenberg at comcast.net>
To: "Ben Swann" <benswann at comcast.net>; "David" <duandcc_forums at cox.net>;
<urq at audifans.com>; <quattro at audifans.com>
Sent: Monday, April 04, 2005 10:44 PM
Subject: Re: [urq] Re: Alternator noise to power AMP


> Have you tried running ground to body instead of directly to battery?  I
> could be mistaken, but I don't think (nor have I ever) run the ground
> directly to the battery. The important thing is to keep the power wires
away
> from the RCA wires.
>
> Ingo
>
> ----- Original Message -----
> From: "Ben Swann" <benswann at comcast.net>
> To: "David" <duandcc_forums at cox.net>; <urq at audifans.com>;
> <quattro at audifans.com>
> Sent: Monday, April 04, 2005 10:34 PM
> Subject: [urq] Re: Alternator noise to power AMP
>
>
> > Ground to power amp is directly to battery using 10Guage wire.  Beefy
> > positive going dierectly to battery too.
> >
> > Ben
> > ----- Original Message -----
> > From: "David" <duandcc_forums at cox.net>
> > To: "Ben Swann" <benswann at comcast.net>; <urq at audifans.com>;
> > <quattro at audifans.com>
> > Cc: "Ben Swann" <benswann at comcast.net>
> > Sent: Monday, April 04, 2005 5:58 PM
> > Subject: Re: Alternator noise to power AMP
> >
> >
> > > Usually a sign of a bad ground. Try cleaning up the ground a little
> and/or
> > a different ground location...
> > >
> > > Dave
> > > 1987 CGT 2.3
> > > SE VA
> > >
> > > >
> > > > From: "Ben Swann" <benswann at comcast.net>
> > > > Date: 2005/04/04 Mon PM 03:37:46 EDT
> > > > To: <urq at audifans.com>,  <quattro at audifans.com>
> > > > CC: Ben Swann <benswann at comcast.net>
> > > > Subject: Alternator noise to power AMP
> > > >
> > > > After recently wiring in a power amp to the rear speakers for my '83
> Ur
> > > > Quattro, there is a whine being picked up by the RCA inputs to the
> amp.
> > It
> > > > is not picked up by the stereo, front speakers, or if rears are
wired
> > > > directly to the stereo without an amp.
> > > >
> > > > How can I eliminate this or filter it?  I am using high quality RCA
> > cables -
> > > > don't know if they are sheilded.
> > > >
> > > > Also, what kind of capaciter would be good to eliminate powere
> clipping?
> > > >
> > > > Ben
> > > >
> > > > _______________________________________________
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> > > > quattro at audifans.com
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> > > >
> > >
> >
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