[geeks] Car audio question

Kurt Huhn geeks at sunhelp.org
Wed Sep 5 07:16:23 CDT 2001


Ford Taurus - factory stereo, the amp is an American Legacy 300W.  I'll
double check the ground today - I suspect that might be it.  It is
*possible* that I forgot to completely ground the chassis of the stereo
unit.

Kurt

----- Original Message -----
From: "Matthew Poertner" <mrblue at mrplaid.com>
To: <geeks at sunhelp.org>
Sent: Tuesday, September 04, 2001 11:52 PM
Subject: Re: [geeks] Car audio question


> What kind of car?  What kind of amp?
>
> Check and make sure you have a good ground...
>
> I used to play with audio equipment quite a bit in high school.  I had a
> 1970 VW Fastback.  It had a similar problem.  Also whenever the bass
> hit, the headlights would dim.  I guess the little generator didn't put
> out enough juice and it was taking out quite a draw from the battery.
>  So, I went to my computer repair class and tore apart some old
> computers and took the capacitors (Two - about the size of a coke can).
>  I hooked it up so the amp took the draw off the caps instead of the
> battery.  Sounded hell of clean and the headlights didn't dim anymore.
>
> -Matt
>
> Kurt Huhn wrote:
>
> >Slightly more geeky today,
> >
> >I just installed an amplifier/subwoofer combo in my car - but can't
utilize
> >it to it's full potential.  The reason is, whenever I try to increase the
> >output the subwoofer will thump and hum.
> >
> >It *sounds* like it is firing _roughly_ once per three RPMs.  This sort
> >makes sense to me - since my car is a 6 cylinder.  This is just by me
timing
> >the thumps from the subwoofer - not that I actually hooked up a tach to
my
> >tach-less car and ran it against the thumps.
> >
> >It sounds to me like I need a line filter for the power lead - but
figgered
> >I'd ask here in case anyone else has come across the same problem.
> >
> >Any ideas?
> >
> >Kurt
> >
> >_______________________________________________
> >GEEKS:  http://www.sunhelp.org/mailman/listinfo/geeks
> >
>
>
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