F5 question

IZHAKKATZ · 22nd July 2012, 11:21 AM

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
IK

AudioSan · 22nd July 2012, 11:40 AM

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.

IZHAKKATZ · 22nd July 2012, 11:46 AM

Got it

Thank you for such a quick responce

IK

labjr · 22nd July 2012, 12:33 PM

You always want to use the power supply star ground for the speaker negative and the ground on the board.

IZHAKKATZ · 23rd July 2012, 07:41 AM

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

Thanks
IK

22nd July 2012, 11:40 AM	#2
AudioSan diyAudio Member Join Date: Feb 2009 Location: Trondheim	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. __________________ aleph P1.7 pre. F5 power amp. CDpro2(need DAC). Vivaldi8 speakers

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22nd July 2012, 11:46 AM	#3
IZHAKKATZ diyAudio Member Join Date: Jul 2004 Location: Israel	Got it Thank you for such a quick responce IK

22nd July 2012, 12:33 PM	#4
labjr diyAudio Member 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.

23rd July 2012, 07:41 AM	#5
IZHAKKATZ 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 Thanks IK