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Re: Muting car stereo without damage?

Subject: Re: Muting car stereo without damage?
From: "James Thompson"
Date: Sun, 9 Apr 2006 18:16:33 -0400
Newsgroups: sci.electronics.basics
"Eric R Snow" <etpm@xxxxxxxxxxx> wrote in message 
news:q8ud321hahfobvu6mkt2p2k6bd2gubccqn@xxxxxxxxxx
> Greetings All,
> I would like to be able to mute my car stereo with just a push of a
> button. The volume control is the digital type where a button is
> pressed and the volume slowly rises or falls. If it was a knob type
> I'd just twist it fast to zero and then twist it back to the original
> setting. If the radio is turned off to mute it then it takes several
> seconds for the sound to return when the radio is turned back on. If a
> switch is used in the speaker wires will it harm the radio to have the
> speakers connected and disconnected when the radio is playing? If so,
> is there a way around this? Like maybe switching in a dummy load with
> a make then break switch? Any other suggestions?
> Thanks,
> Eric

Put a 10 watt, maybe 20 ohm resistor in series with you speaker outputs and 
then connect your mute switch to short that resistor for normal play.  That 
way you will still hear the sound, justat a much lower volume..  DPDT swith 
with 2 20ohm 10 wat resistors.  JTT .. 



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