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More Grounding Questions

I appreciate the feedback on my grounding rod questions. Two more questions are as follows:

1. Will getting rid of ground loops further improve the system even though I don't have hum? My system does not hum at all. However, I have two ground loops in the system as all equipment is grounded to AC ground.

2. Which one is the right way to float the amp? There are three contact points: signal/circuit ground, AC ground, and chassis.
2.a Wire signal/circuit ground to the chassis and keep the AC ground floating.
2.b Wire AC ground to the chassis and keep the signal/circuit ground floating.

Thanks.
vett93

Showing 3 responses by hifihvn

hifihvn
943 posts
 
Would opening the grounds let RF noise in the system,that may be getting grounded now?Just a thought that occurred when reading.
hifihvn
943 posts
 
Thanks Heyraz. Let me provide more info. My main power amp has both AC ground and signal/circuit ground wired to the chassis.

I don't think I've ever seen that in audio gear.If someone used a cheater plug that can reverse the neutral,and the hot phase line,that would give 120 volts to the chassis.Zap the user,plus fireworks possible.I can see them tying the green ground to the chassis.I don't think I would experiment either.
hifihvn
943 posts
 
Maybe,I'm thinking your reference to the AC ground as the neutral.Hopefully,It has the outlet supply ground tied to the chassis.I'm still thinking,if it isn't broke,don't fix it.
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