Marantz CD63 & CD67 mods list - Page 1022 - 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 21st June 2008, 11:14 PM   #10211
6h5c is offline 6h5c  Netherlands
One Seriously Addicted to Audio and Electronics
diyAudio Member
 
6h5c's Avatar
 
Join Date: Apr 2004
Location: Heerhugowaard
I'd recommend a 15V tranny. Heat is bad for electronics.

Ray
__________________
Gonna buy my little girl a pink soldering-iron
The new DOS-CFP board is out!
  Reply With Quote
Old 22nd June 2008, 08:40 AM   #10212
Thomo is offline Thomo  United Kingdom
diyAudio Member
 
Thomo's Avatar
 
Join Date: Nov 2006
Quote:
Originally posted by RCruz


I specifically built the opamps dedicated psu with a 2x18v TX following other´s ideas on this forum... I intend to use the same psu for the future discrete outputs...

Ricardo
I'm pretty sure Brent is running his discrete stage on +-15v. Less volt-drop compared to 12v.

I am running my discrete output on 12v, does upping the voltage improve the sound any?

Lee.
__________________
/\/\/\/\/\/\/\/
  Reply With Quote
Old 22nd June 2008, 12:17 PM   #10213
SimontY is offline SimontY  United Kingdom
diyAudio Member
 
SimontY's Avatar
 
Join Date: May 2003
Location: Sheffield, North England
Send a message via MSN to SimontY
Only ever run mine on +-15v.
  Reply With Quote
Old 22nd June 2008, 12:19 PM   #10214
SimontY is offline SimontY  United Kingdom
diyAudio Member
 
SimontY's Avatar
 
Join Date: May 2003
Location: Sheffield, North England
Send a message via MSN to SimontY
Default Re: C1 Clock report

Quote:
Originally posted by RCruz
Gentlemen

As agrred, here my report after implementing the C1 clock on the dac:

Improved dynamics with noticeable silences.
Much better stereo image.
Stage depth and stability improvements.
Instrument placement better defined.
Instrument size "volume" recreating an holographic auditive picture.
Recording place echoes and reverbs well recreated (Laurie Anderson "Bright Red")
Much better instrument diferentiation and positioning in the soundstage.
Particular improvements in attack and decay.
Voice timbre and placement extraordinary improvements (Tori Amos)
Piano notes and reverb recreated with aplomb.

This mod completely transformed the player.

Now I believe that PDM signal must have a good clock to result.

Ricardo

Gosh, that's quite a list! Completely agree with all of that. The servo reclocking isn't quite as striking but does fix the hazy treble and provide more of the subtle details. Your player must be getting fairly "high end" now
  Reply With Quote
Old 22nd June 2008, 12:19 PM   #10215
RCruz is offline RCruz  Switzerland
diyAudio Member
 
RCruz's Avatar
 
Join Date: Sep 2006
Location: Wallis
Blog Entries: 1
Quote:
Originally posted by SimontY
Only ever run mine on +-15v.
Hi Simon

Can I drive the LM4562NA opamps at +-15v?
__________________
RC
  Reply With Quote
Old 22nd June 2008, 12:20 PM   #10216
SimontY is offline SimontY  United Kingdom
diyAudio Member
 
SimontY's Avatar
 
Join Date: May 2003
Location: Sheffield, North England
Send a message via MSN to SimontY
Quote:
Originally posted by RCruz
Hi Simon

Can I drive the LM4562NA opamps at +-15v?
Hi Ricardo,

Yep, I run the 4562s in my preamp from +-15v S Powers, sounds great.

Simon
  Reply With Quote
Old 22nd June 2008, 12:21 PM   #10217
RCruz is offline RCruz  Switzerland
diyAudio Member
 
RCruz's Avatar
 
Join Date: Sep 2006
Location: Wallis
Blog Entries: 1
Default Re: Re: C1 Clock report

Quote:
Originally posted by SimontY

Your player must be getting fairly "high end" now
Yes... now it is starting to compete with my ariston
__________________
RC
  Reply With Quote
Old 22nd June 2008, 12:22 PM   #10218
RCruz is offline RCruz  Switzerland
diyAudio Member
 
RCruz's Avatar
 
Join Date: Sep 2006
Location: Wallis
Blog Entries: 1
Quote:
Originally posted by SimontY


Hi Ricardo,

Yep, I run the 4562s in my preamp from +-15v S Powers, sounds great.

Thank you Simon

Maybe that will be the temporary solution.... I will build some sregs for +-15v
__________________
RC
  Reply With Quote
Old 22nd June 2008, 12:26 PM   #10219
SimontY is offline SimontY  United Kingdom
diyAudio Member
 
SimontY's Avatar
 
Join Date: May 2003
Location: Sheffield, North England
Send a message via MSN to SimontY
Quote:
Originally posted by RCruz

Thank you Simon

Maybe that will be the temporary solution.... I will build some sregs for +-15v
That'll certainly help, but also check this out:

http://www.national.com/pf/LM/LM4562.html

You can use up to +/-17. You'll not be able to use 16v caps though.

Simon
  Reply With Quote
Old 22nd June 2008, 12:29 PM   #10220
RCruz is offline RCruz  Switzerland
diyAudio Member
 
RCruz's Avatar
 
Join Date: Sep 2006
Location: Wallis
Blog Entries: 1
I would like to only change the sregs... I am using 220BG16v on the opamps... is it enough for +-15v ?
__________________
RC
  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



New To Site? Need Help?

All times are GMT. The time now is 09:20 PM.


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