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#154734 - 11/04/2003 08:21 5V line on power supply to car amps
MP3944
journeyman

Registered: 25/05/2002
Posts: 55
Loc: Grove City, OH, USA
I have a friend who is dead set on building a computer in his car ( I can't sway him towards the empeg, but he got a 10.4" Touchscreen for $300 after shipping, oh well.) He wants to know if you can use the 5V DC line of a standard power supply to send the necessary signal to the amps to turn them on. Also, does anyone know of a good, but not so expensive way to get a DC-DC power supply?
Thanks in advance,
Justin
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1987 Porsche 944 http://www.heeyyguys.com

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#154735 - 11/04/2003 08:36 Re: 5V line on power supply to car amps [Re: MP3944]
wfaulk
carpal tunnel

Registered: 25/12/2000
Posts: 16706
Loc: Raleigh, NC US
I suppose it's possible, depending on the amp, but they expect 12v.
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Bitt Faulk

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#154736 - 11/04/2003 09:07 Re: 5V line on power supply to car amps [Re: MP3944]
JBjorgen
carpal tunnel

Registered: 19/01/2002
Posts: 3584
Loc: Columbus, OH
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#154737 - 11/04/2003 09:21 Re: 5V line on power supply to car amps [Re: wfaulk]
MP3944
journeyman

Registered: 25/05/2002
Posts: 55
Loc: Grove City, OH, USA
Sorry, I don't know what I was thinking, would the 12V signal off of a free conector work in this case?
Thanks for the help guys.
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1987 Porsche 944 http://www.heeyyguys.com

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#154738 - 12/04/2003 00:09 Re: 5V line on power supply to car amps [Re: MP3944]
JrFaust
member

Registered: 07/02/2002
Posts: 193
Loc: New Richmond, WI
Yes it will work off the +12v, I did that exact thing with my computer before my "Precious"
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#154739 - 18/04/2003 08:49 Re: 5V line on power supply to car amps [Re: MP3944]
csf
member

Registered: 08/04/2002
Posts: 105
Loc: Charlotte, NC
Use a simple relay and have the 5v turn it on and thus allowing a 12v feed to get turned on.
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10+40 Gig Mk2a... with Tuner. S/N 040103784 || 2001 Jeep TJ, 60th Anniversary Edition

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