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Old 22nd July 2012, 11:21 AM   #1
diyAudio Member
Join Date: Jul 2004
Location: Israel
Default F5 question

Good People,

In the DIY store F5 boards I'm using
there are 2 groung markings- Why two ?
Do I connect the ground (one or both of them) from the board directly to case earth or to the CL60 which then then goes to eart?

Thank you all
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Old 22nd July 2012, 11:40 AM   #2
diyAudio Member
Join Date: Feb 2009
one to speaker negativ. one to PSU gnd. gnd from PSU to earth thru a CL-60
or you can run speaker negativ directly to PSU gnd too.
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Old 22nd July 2012, 11:46 AM   #3
diyAudio Member
Join Date: Jul 2004
Location: Israel
Got it

Thank you for such a quick responce
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Old 22nd July 2012, 12:33 PM   #4
labjr is offline labjr  United States
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Join Date: Apr 2003
Location: MA
You always want to use the power supply star ground for the speaker negative and the ground on the board.
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Old 23rd July 2012, 07:41 AM   #5
diyAudio Member
Join Date: Jul 2004
Location: Israel
Thank you Labjr
I'm at, it just to be sure
i'm using 10K resistors for R21 22 is that okay?
or should I change it to 22K

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