Ups And Downs of Grounding FP2 Ins and Outs???

Bill Epstein · 2270

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Offline Bill Epstein

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on: April 03, 2015, 10:00:24 AM
I'm using some shielded 4x24 cable from the selector to the input RCAs and will attach the shield to the ground tabs for those and on to the output RCA ground tabs. The RCAs are on the back panel and not visible in the Pic

If I run that ground scheme to the star ground will I need to do anything with the selector switch end of the shield? Just let it float? Wait to play music and see what the result is?

VPI Traveler/ZYX R50
Cinemag 3440 AH
Steve Brown Caravaggio Phono
Foreplay 2.1
The Twins: 55 Watt Mullard 5-20 KT-88 mono-Blocks
4 Pi Speakers

Offline Paul Birkeland

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Reply #1 on: April 03, 2015, 10:17:53 AM
Quote from: Bill Epstein on April 03, 2015, 10:00:24 AM
I'm using some shielded 4x24 cable from the selector to the input RCAs and will attach the shield to the ground tabs for those and on to the output RCA ground tabs. The RCAs are on the back panel and not visible in the Pic

I would do it the other way.  Attach the shield to the chassis plate (not necessary to go to the star). 

-PB

Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man

Offline Bill Epstein

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Reply #2 on: April 03, 2015, 01:19:00 PM
The back panel is not metal but wood. Would you create a second "signal ground" on the top plate near the inputs or just run them to the Star?

VPI Traveler/ZYX R50
Cinemag 3440 AH
Steve Brown Caravaggio Phono
Foreplay 2.1
The Twins: 55 Watt Mullard 5-20 KT-88 mono-Blocks
4 Pi Speakers

Offline Paul Birkeland

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Reply #3 on: April 03, 2015, 02:39:13 PM
Quote from: Bill Epstein on April 03, 2015, 01:19:00 PM
Would you create a second "signal ground" on the top plate near the inputs or just run them to the Star?
Whichever is easier.

Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man

Offline Grainger49

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Reply #4 on: April 04, 2015, 02:54:56 AM
Bill,

My memory is that the FP 2 is more crowded than your above picture.  Nice neat work!


Offline Bill Epstein

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Reply #5 on: April 04, 2015, 08:37:41 AM
Quote from: Grainger49 on April 04, 2015, 02:54:56 AM
Bill,

My memory is that the FP 2 is more crowded than your above picture.  Nice neat work!

Don't you recall I've named this the "Parts Box Foreplay"? It looks uncluttered 'cause if I didn't have the part, I just left it out.


VPI Traveler/ZYX R50
Cinemag 3440 AH
Steve Brown Caravaggio Phono
Foreplay 2.1
The Twins: 55 Watt Mullard 5-20 KT-88 mono-Blocks
4 Pi Speakers

Offline Grainger49

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Reply #6 on: April 04, 2015, 09:02:31 AM
Ok, makes sense to me.  But I'm really sleepy right now.


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