Go Back   Home > Forums > > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

AKSA Builders of market proven kits and modules at sound quality to rival the best in high end

Thread Tools Search this Thread
Old 17th May 2011, 02:30 AM   #1
marcus1 is offline marcus1
diyAudio Member
Join Date: Jul 2004
Default GK-1R earthing (again)

Apologies for raising the subject again, but I just want to make sure I understand correctly the steps to eliminate hum in the GK-1R before going ahead.

Iím following a couple of topics from Audiocircle; the first is the recent topic Hum, Grounding, Torture and Agony, in which, Steve (Stvnharr) found the following to eliminate hum:
*Replace the 10R resistors with wire links in the grounding tracks and:
*Run a wire to connect the grounds from each channel.

The first is easy enough but would I implement the second by soldering a wire between the (new) links of each channel?

The second topic is the much older GK-1R Earthing scheme revisited by Ron (RonR). In this thread he has cut the C8 to C18 link, left the R2 resistor in place and put a link between the two signal earths on each channel (diagram below). Is this achieving the same as the Hum... thread above or does this info give additional steps to do as well?


Tim (marcus1)
Attached Images
File Type: gif Earthing_scheme.gif (13.7 KB, 71 views)
  Reply With Quote
Old 18th May 2011, 01:08 AM   #2
stvnharr is offline stvnharr  Australia
diyAudio Member
Join Date: Jul 2003
Location: Victoria
Default Grounding on GK-1

All you have to do is replace the 10R resistors (R2) with a wire link and do none of the other things. That is what I ultimately did on mine and is quiet as can be. Ask Hugh about my quietness.

  Reply With Quote
Old 18th May 2011, 05:43 AM   #3
AKSA is offline AKSA  Australia
diyAudio Member
Join Date: Sep 2001
Location: Melbourne, Australia

Steve is 100% on the money. That's it - no other changes, just simply replace the grounding 10R resistor at the input of the SS gainblock with a wire link. All the rest is unchanged, and the quietness is a revelation. I'm still angry with myself for missing this one, and hats off to Steve who shared this vital information!!

Steve, long email tonight, doing case photography at present.....


Aspen Amplifiers P/L (Australia)
  Reply With Quote


GK-1R earthing (again)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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
1R resistor Khron Chip Amps 22 23rd September 2011 09:32 AM
Gk-71 Vladi59 Swap Meet 0 23rd March 2009 06:02 PM
Caddock MP915 1R Resistors Arius Swap Meet 15 28th October 2006 07:47 PM
1R capable D amp supra Class D 5 13th October 2006 11:32 PM
How to measure resistors below 1R bigpanda Parts 6 19th June 2005 05:02 PM

New To Site? Need Help?

All times are GMT. The time now is 02:55 PM.

Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.00%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright ©1999-2017 diyAudio