Shigaraki Amp thoughts - diyAudio
Go Back   Home > Forums > Amplifiers > Chip Amps
Home Forums Rules Articles diyAudio Store Gallery Wiki Blogs Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Chip Amps Amplifiers based on integrated circuits

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
Thread Tools Search this Thread
Old 24th July 2007, 03:05 PM   #1
mirilaj is offline mirilaj  Bulgaria
diyAudio Member
mirilaj's Avatar
Join Date: Oct 2005
Location: Sofia
Default Shigaraki Amp thoughts

Hi all,

I'm curious about :

1. What is the black material underneath the amp/PSU
2. What is the negative input capacitor value and why Kimura san uses it this time. Is there any sound benefit?

- Miro
  Reply With Quote
Old 24th July 2007, 03:40 PM   #2
diyAudio Member
Join Date: Oct 2005
The black material is a Japanese ceramic called Shigaraki (hence the name). Apparently it has unique resonance damping properties hmmm... ;-)

Not sure what the third PSU cap is, although I've had success using a cap between V+ and V- so perhaps that is what it does...
  Reply With Quote
Old 24th July 2007, 11:11 PM   #3
mirilaj is offline mirilaj  Bulgaria
diyAudio Member
mirilaj's Avatar
Join Date: Oct 2005
Location: Sofia
sharpi31, thank you for the ceramic information! It's very interesting.

Now, about the cap, in my opinion it is a feedback capacitor that ensures unity gain at DC. As you can see at the picture it is betwen the earth and the inverting input resistor. This is a step back from simplicity of Gaincard, but maybe it brings some sonic advantage. What do you think?
Attached Images
File Type: jpg 47labs09_clgr_270504.jpg (87.5 KB, 399 views)
  Reply With Quote


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
Shigaraki Drive and DAC images lohk Digital Source 48 7th August 2013 08:13 PM
Any thoughts on this 108 cab? DaveCan Full Range 31 22nd May 2009 12:05 PM
813 Thoughts Steven-H Tubes / Valves 40 26th January 2008 02:24 AM
47 Lab Shigaraki DAC with Dumpty ps Manolo47 Digital Source 0 29th March 2006 02:47 PM
My GC ala Shigaraki.... sa_schulz Chip Amps 6 29th August 2003 06:46 PM

New To Site? Need Help?

All times are GMT. The time now is 08:33 AM.

vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright 1999-2017 diyAudio

Content Relevant URLs by vBSEO 3.3.2