component grounding question - diyAudio
Go Back   Home > Forums > Amplifiers > Solid State
Home Forums Rules Articles diyAudio Store Gallery Wiki Blogs Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Solid State Talk all about solid state amplification.

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 21st February 2016, 11:48 PM   #1
diyAudio Member
 
Join Date: Jan 2016
Default component grounding question

Hi, I hope that I am posting this in the correct place; I have a question about grounding all of my system components, Amp, Preamp, Tuner, ECT... It seems as though some of the components have a ground screw on the back and some don't. My question is should everything be grounded together and what should they be grounded to. I have everything plugged a power conditioner which is plugged into a UPS. The conditioner has a grounding post (screw) on the back. Should all of the components be grounded to that? If so should I just wire the ones with a ground screw on the back or do everything? I have also been thinking about replacing the 2 prong power cords with better 3 prong power cords that have the ground plug. All of my components were built 20-30 years ago. Any input is greatly appreciated.
Thanks……
Mark
  Reply With Quote
Old 22nd February 2016, 05:37 AM   #2
diyAudio Member
 
Join Date: Apr 2010
Location: Coffs Harbour
Hi and welcome to Diyaudio!
How old really, are those parts of your system which involve separate ground wires? Older amplifiers of the 1970s that were used with vinyl players, required a separate ground wire for the turntable chassis to avoided forming a ground hum loop which could swamp the signal from the very low level at the cartridge. Much changed when digital systems and their higher voltage signal levels arrived, so separate ground wire connections became largely obsolete. I've seen a few tape decks fitted with them and even the occasional graphic equalizer but these were not always useful in getting lowest hum levels. Assuming the UPS chassis connector is mains ground connected, I would wire that to the amplifier ground connector too. You may find that some earth connections will be disastrous for hum, depending on the manufacturers' grounding arrangement. Not every maker wires up everything the a same way as everyone else.

A tuner's rear wire connectors are usually associated with an FM aerial coax cable or flat ribbon connector, not the amplifier ground wire at all. The phono player to amplifier ground wire connection will be essential though, if you want to play vinyl without bad hum and noise.
__________________
Ian

Last edited by Ian Finch; 22nd February 2016 at 05:55 AM.
  Reply With Quote
Old 24th February 2016, 02:10 AM   #3
diyAudio Member
 
Join Date: Jan 2016
Thanks for the help Ian, I have owned most of my components since the 80's,I cleaned all of my components and behind my rack over the weekend so I took everything apart and I noticed the ground screws on some but not all of the components. I never gave it any thought before now… (dumb)
Components with and without ground.
Teac EQ (Ground)
Denon PRA-1100 (ground)
Denon TU-550 Tuner
Nakamichi CQ3A cassette
Denon DP-1200 Turntable (ground)
Nakamichi PA-7 Amp
Watson Lab 10 Speakers
I will take care of that this weekend… Thanks Again Ian…
Mark
  Reply With Quote
Old 24th February 2016, 12:16 PM   #4
AndrewT is offline AndrewT  Scotland
diyAudio Member
 
Join Date: Jul 2004
Location: Scottish Borders
Do not change the cable of a double insulated ClassII product.
__________________
regards Andrew T.
Sent from my desktop computer using a keyboard
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Audio Component Grounding and Interconnection David Davenport diyAudio.com Articles 36 11th October 2016 01:40 PM
Component Footprint Question Mr Smith Construction Tips 5 31st December 2014 09:18 PM
Crescendo ME (component) question.. Dxvideo Solid State 16 29th November 2007 07:36 PM


New To Site? Need Help?

All times are GMT. The time now is 08:56 AM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2016 DragonByte Technologies Ltd.
Copyright ©1999-2016 diyAudio

Content Relevant URLs by vBSEO 3.3.2
Wiki