Go Back   Home > Forums > Source & Line > Digital Line Level

Digital Line Level DACs, Digital Crossovers, Equalizers, 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 25th November 2012, 05:26 PM   #1
E30NA is offline E30NA  Denmark
diyAudio Member
 
Join Date: May 2011
Location: Denmark
Default PSU upgrade for DAC Magic Plus

Hi everybody

I am considerring to upgrade or swap the 12v DC Wall Wart PSU that comes with the Cambrigde DAC Magic Plus. There are some options for an upgrade PSU out there, but i was thinking that maybee it was possible to build a 12v DC PSU that where better than the rather pricy options out there like this one: Dacmagic PLUS Linear low noise PSU by Fidelity Audio | eBay
Has anybody some sugestions on what the best sollution for me would be?

Thanks
  Reply With Quote
Old 25th November 2012, 05:55 PM   #2
dddac is offline dddac  Germany
diyAudio Member
 
Join Date: Jul 2003
Location: Wiesbaden
Good timing... I just posted my new designs here. You can try my 12 Volt supply for your DAC if you like. This worked out very well (sonically) to both my DACs. it does up to 1A. you can download the circuit from my Website.
__________________
www.dddac.com
Happy listening and building
  Reply With Quote
Old 25th November 2012, 06:20 PM   #3
qusp is offline qusp  Australia
diyAudio Member
 
qusp's Avatar
 
Join Date: Oct 2009
Location: Brisbane, Australia
better than that 250GBP PSU in a 5GBP hammond case using a third party regulator thats overpriced at 63GBP...
  Reply With Quote
Old 26th November 2012, 06:06 AM   #4
E30NA is offline E30NA  Denmark
diyAudio Member
 
Join Date: May 2011
Location: Denmark
Quote:
Originally Posted by dddac View Post
Good timing... I just posted my new designs here. You can try my 12 Volt supply for your DAC if you like. This worked out very well (sonically) to both my DACs. it does up to 1A. you can download the circuit from my Website.
It looks very interresting. On the wall wart PSU it reads: 220V 0,5A in, and 12V 2A out. Will your PSU be able to deliver enough current for the DACmagic Plus, when it can deliver 1A?
  Reply With Quote
Old 26th November 2012, 06:12 AM   #5
dddac is offline dddac  Germany
diyAudio Member
 
Join Date: Jul 2003
Location: Wiesbaden
Quote:
Originally Posted by E30NA View Post
It looks very interresting. On the wall wart PSU it reads: 220V 0,5A in, and 12V 2A out. Will your PSU be able to deliver enough current for the DACmagic Plus, when it can deliver 1A?
What the adapter says is not so relevant, more important is what you need.
What current does the DAC Consume? is that 2A? I Doubt it.
__________________
www.dddac.com
Happy listening and building
  Reply With Quote
Old 26th November 2012, 06:25 AM   #6
E30NA is offline E30NA  Denmark
diyAudio Member
 
Join Date: May 2011
Location: Denmark
I dont know what the DACmagic exactly uses, but on the power inlet plug on the chassis it reads: 12V 2A
Is there any way to make your PSU deliver 2A?
  Reply With Quote
Old 26th November 2012, 08:04 AM   #7
dddac is offline dddac  Germany
diyAudio Member
 
Join Date: Jul 2003
Location: Wiesbaden
the design is very flexible. you can easily go up to 2A. You need to increase the transformer VA rating accordingly and you need to increase the heats ink for the TIP122. that is all.

but..... Before doing this, I would measure the current usage or ask the manufacturer.... that seems easier to me?
__________________
www.dddac.com
Happy listening and building
  Reply With Quote
Old 26th November 2012, 11:52 AM   #8
E30NA is offline E30NA  Denmark
diyAudio Member
 
Join Date: May 2011
Location: Denmark
I will dip into how much current there is needed, and get back.

I am thinking about if there could be some possitive side efects of having a beefy PSU, like there is on a power amplifier? If that is the case, then i would choose to build the PSU more powerfull, even though the Price would go up.

Have you tried other caps than than the Nihichon, and would it be possible to change the "sound" of the PSU by trying out other caps?
  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
DIY Cambrige DAC Magic peizi Digital Line Level 5 10th August 2012 02:09 AM
PSU design/upgrade for a Cambridge Audio S700 Isomagic DAC elaar Digital Line Level 9 13th February 2012 09:33 PM
Cambridge Dac Magic fault? nbaptista Digital Line Level 6 27th January 2011 04:43 PM
Muse Model 2 DAC upgrade with Guido Tent DAC upgrade? jpchleapas Digital Source 1 31st January 2008 07:18 PM


New To Site? Need Help?

All times are GMT. The time now is 10:49 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