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

Analogue Source Turntables, Tonearms, Cartridges, Phono Stages, Tuners, Tape Recorders, etc.

Gary Koh's Record Weight Gem Tweak
Gary Koh's Record Weight Gem Tweak
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 25th February 2019, 05:48 PM   #1
Packgrog is offline Packgrog  United States
diyAudio Member
 
Join Date: Jan 2015
Location: Philadelphia area
Default Gary Koh's Record Weight Gem Tweak

On both the VPI forum and AudioNirvana, I came across posts from Joe Pittman claiming to have done a tweak on his record weight as prescribed by Gary Koh which he felt outperformed most or all other record weight variations that he'd tried. Joe shared a template that he had prepared based on Gary's recommendations, which can be found here: http://www.kosmic.us/Clamp%20Tweak%20Template.pdf

After a VPI forum user graciously contributed a used Bren1 weight for my experiments, and waiting nearly a month for all of the gem bearings to arrive, I gave it a try myself. I'm actually quite pleased with the results.

The following are hi-res digital recordings of the same song with the same gear and record, with the only difference being the clamping method. One is with a Michell Engineering record clamp with a grungebuster spacer as the reflex washer between record and mat, one is with the Bren1 without modification, one is with the Bren1 with 2 dimes between it and the record (an improvement over weight alone), and the last is with the gem mod applied to the Bren1 using Loctite Super Glue for the two ceramic bearings and Loctite Glass Glue for the ruby. Have a listen for yourself, and see what you prefer: https://mega.nz/#F!5hYmgSJD!XFM63bFxNrd6sN78TFI-PQ
Attached Images
File Type: jpg gemmed_weight.jpg (95.5 KB, 64 views)
  Reply With Quote

Reply


Gary Koh's Record Weight Gem TweakHide 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
FS: ShotPuck SP1 rev-A Record Weight user510 Swap Meet 0 27th March 2017 10:50 PM
DIY lightweight record clamp -!not based on weight! furious Analogue Source 28 19th December 2013 06:35 PM
Aluminati Sound Reference Record Weight Kraemerkid Vendor's Bazaar 0 14th August 2013 09:28 PM
Aluminium & O-Rings - My Record Weight taniknight Analogue Source 6 5th June 2011 08:09 PM
DIY record clamp weight Jim Leach Analogue Source 14 25th July 2010 10:39 PM


New To Site? Need Help?

All times are GMT. The time now is 11:52 PM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 14.29%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Copyright ©1999-2019 diyAudio
Wiki