DAC 2496 (AK4393) DAC KIT With CS8416+AK4393+5532 - Page 230 - diyAudio
Go Back   Home > Forums > Source & Line > Digital Source

Digital Source Digital Players and Recorders: CD , SACD , Tape, Memory Card, etc.

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 3rd December 2012, 11:11 PM   #2291
Peterma is offline Peterma  Australia
diyAudio Member
 
Join Date: Jan 2009
Default BOM Caps

Hi Clave, the Caps C23, C24 and C25 can you suggest an easy to get alternative to the ones on your BOM, because i Just dont trust what I see on ebay?
  Reply With Quote
Old 4th December 2012, 08:26 AM   #2292
erin is offline erin  Australia
diyAudio Member
 
Join Date: Nov 2006
Location: http://www.makeitpossible.com/
try here - its local + $15 shipping

or here with free shipping

or here with $10 or less shipping
__________________
Listening is best done using a pair of ears.

Last edited by erin; 4th December 2012 at 08:36 AM.
  Reply With Quote
Old 4th December 2012, 09:49 AM   #2293
diyAudio Member
 
Join Date: Aug 2005
Location: Aveyron
No replies to biasing op-amps into class A - I thought this might generate some interest.
__________________
Black Stuart
  Reply With Quote
Old 4th December 2012, 09:52 AM   #2294
erin is offline erin  Australia
diyAudio Member
 
Join Date: Nov 2006
Location: http://www.makeitpossible.com/
already been discussed quite a bit
__________________
Listening is best done using a pair of ears.
  Reply With Quote
Old 4th December 2012, 01:29 PM   #2295
diyAudio Member
 
Join Date: Aug 2005
Location: Aveyron
Erin,
thanks for the link, unfortunately most comments were from theory not from practice. I was hoping someone would comment on the ccs route as per Audiologica. I wish I could read schematics as I would definately bias the op-amp in version 2 of this DAC I'm going to build. I have to admit that this mod interests me for my phono stage, which has op-amps.

Stuart
__________________
Black Stuart
  Reply With Quote
Old 4th December 2012, 05:21 PM   #2296
diyAudio Member
 
Join Date: Aug 2010
Hi,
I have a +- 15V regulated PS using LM317/337 combo. How about if I place it before the 12V regulators. Do you think that might be a idea? Also have a 7812 reg. which I can place before the 9V regulator on the board?
Also as i understand the most important changes may the onboard regulators, the Low pass Filter changes. Apart from this capacitor changes are listed but not sure which ones will be the best value. Any suggestions
Regards
Vinod
  Reply With Quote
Old 4th December 2012, 05:41 PM   #2297
diyAudio Member
 
DarpMalone's Avatar
 
Join Date: Sep 2008
Location: Toronto
Quote:
Originally Posted by vinodt1347 View Post
Hi,
I have a +- 15V regulated PS using LM317/337 combo. How about if I place it before the 12V regulators. Do you think that might be a idea? Also have a 7812 reg. which I can place before the 9V regulator on the board?
Also as i understand the most important changes may the onboard regulators, the Low pass Filter changes. Apart from this capacitor changes are listed but not sure which ones will be the best value. Any suggestions
Regards
Vinod
I'm not very technical and I'm just learning things along the way here, but have you considered just changing the resistors on the 317/337 board to get +/- 12v out? and omitting the 7812/7912 altogether?
  Reply With Quote
Old 4th December 2012, 05:43 PM   #2298
bcmbob is offline bcmbob  United States
diyAudio Member
 
Join Date: Dec 2009
Location: Bay City, Michigan
Hey Vinod, I really don't want to sound like a jerk or pry too deeply, but can you explain why you are taking this approach and not just doing the complete upgrade BOM? Dario would not have included anything that is not significant for the full enhancement of the DAC. So much is interactive and I fear you may be limiting your results by being so selective. If cost/budget is an issue, as it is with most of us, it would be nice to think that you plan to do the complete mod eventually.

Please, Not intended to offend.
__________________
Bob M.
"Arrange Whatever Pieces Come Your Way."
  Reply With Quote
Old 4th December 2012, 05:58 PM   #2299
diyAudio Member
 
Join Date: Aug 2010
Default No offense

Quote:
Originally Posted by bcmbob View Post
Hey Vinod, I really don't want to sound like a jerk or pry too deeply, but can you explain why you are taking this approach and not just doing the complete upgrade BOM? Dario would not have included anything that is not significant for the full enhancement of the DAC. So much is interactive and I fear you may be limiting your results by being so selective. If cost/budget is an issue, as it is with most of us, it would be nice to think that you plan to do the complete mod eventually.

Please, Not intended to offend.
Hi,

I can do the entire mod. Its just that I have limited time. So the idea was to 'pick the low lying fruit'. Will keep your suggestion in mind. Also finding it a strain to read all the 200+ pages of comments!!
Regards
Vinod
  Reply With Quote
Old 4th December 2012, 06:24 PM   #2300
bcmbob is offline bcmbob  United States
diyAudio Member
 
Join Date: Dec 2009
Location: Bay City, Michigan
Thanks, that makes it much easier to understand what you are doing. It may also be helpful for the gurus to make more appropriate suggestions
__________________
Bob M.
"Arrange Whatever Pieces Come Your Way."
  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
AK4393 burn... CIMONE Digital Line Level 5 24th June 2011 02:12 PM
AK4393 to CS4223? CIMONE Digital Line Level 0 13th December 2009 02:30 PM
AK4393 Serial Configuration Problem Aoxomox Digital Line Level 0 20th March 2009 05:25 PM
AK4393, CS8413 and CS8414 Data Sheets Blue_Max Digital Source 0 23rd December 2004 01:37 PM


New To Site? Need Help?

All times are GMT. The time now is 11:33 AM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2