SSE grounding question

neonthecat · 14th February 2010, 11:13 PM

Hello to all....
This is my first post as I have a SSE board on the way. In preparation, I've been studying the George's website and the SSE schematic and wiring diagrams.
I noted that the main power ground goes from the IEC socket, to the RCA input jack (non-signal side). The RCA jacks I'm going to use have insulating washers to isolate the entire RCA jack from the chassis ground. The last amp I built did not ground the jacks to the chassis.
So my question is if this grounding method will cause any hum problems? Would it be better to supply the board (and chassis) a ground directly from the IEC socket, and let the RCA's stay isolated?

Thanks!
"The Cat"

rknize · 14th February 2010, 11:56 PM

That is exactly what I did and it works fine. The key is just to make sure you have only one path between the PCB and the chassis.

neonthecat · 15th February 2010, 12:35 AM

Russ,

Thank you for the reply.
BTW....Your SSE build looks great. I hope to post some shots of my own in due time.

motosapien · 12th September 2010, 10:01 AM

I was just looking at RCA plugs and wondering the same thing. The hours I've spent sifting through and searching posts here has been very worth while. All my board parts have been ordered so I'm starting to look at sourcing chassis mounted parts.

14th February 2010, 11:13 PM	#1
neonthecat diyAudio Member Join Date: Jan 2010 Location: Left Coast	SSE grounding question Hello to all.... This is my first post as I have a SSE board on the way. In preparation, I've been studying the George's website and the SSE schematic and wiring diagrams. I noted that the main power ground goes from the IEC socket, to the RCA input jack (non-signal side). The RCA jacks I'm going to use have insulating washers to isolate the entire RCA jack from the chassis ground. The last amp I built did not ground the jacks to the chassis. So my question is if this grounding method will cause any hum problems? Would it be better to supply the board (and chassis) a ground directly from the IEC socket, and let the RCA's stay isolated? Thanks! "The Cat"

14th February 2010, 11:56 PM	#2
rknize All the best stuff comes from Chian diyAudio Member Join Date: Feb 2009 Location: Chicagoland	That is exactly what I did and it works fine. The key is just to make sure you have only one path between the PCB and the chassis. __________________ Russ http://www.knizefamily.net/russ/cate...ics/tubeaudio/

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15th February 2010, 12:35 AM	#3
neonthecat diyAudio Member Join Date: Jan 2010 Location: Left Coast	Russ, Thank you for the reply. BTW....Your SSE build looks great. I hope to post some shots of my own in due time.

12th September 2010, 10:01 AM	#4
motosapien diyAudio Member Join Date: Mar 2010 Location: Lake Superior	I was just looking at RCA plugs and wondering the same thing. The hours I've spent sifting through and searching posts here has been very worth while. All my board parts have been ordered so I'm starting to look at sourcing chassis mounted parts.