As posted by Atwell:::::::::::
In a message dated 5/19/00 8:32:10 AM Pacific Daylight Time, carbuff@nac.net
writes:
<< At 10:30 PM 05/18/00 -0700, Jeff McNeal wrote:
>A while ago, I ran a power lead from the radio directly to the battery.
>Fired up the engine, revved to about 3,000 RPM and both the radio and CD
>changer performed admirably.
Jeff,
The battery hookup is actually the preferred way to run your stereo system
(as long as it's properly fused of course). The battery acts as a big
capacitor, smoothing out the voltage and current variations that the audio
components demand.
The autosound enthusiasts often add extra batteries to their high-powered
car systems to prevent just the problems you saw.
Enjoy the tunes,
Atwell Haines
'79 Spitfire (very basic sound system, largely consisting of engine noises
and suspension creaks)
Succasunna, NJ USA
>>
from Paul Fontana ca
and installing a good line suppressor [ coil or capacitor] filter in the
power
feeds to audio units, act like little batteries ... it chops the peaks and
fills the lows
which in turn smoothes out the DC line of voltage..
a cheap way to build DC voltage is to use an electrolytic capacitor of
approx..
30,000- 70,000 mfd.between the + and - feeding the unit will smooth the DC
voltage and slightly raise it
the smaller the mfd the smaller the rise..
a usual cap for 12 to 15 volt DC audio units that are in the unit.. on the
board,
is 1,600 to 3,300 micro farads
i can't guarantee that filtering is your only problem but its a very good
idea to put them in anyways...
good luck
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