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

Vendor's Bazaar Commercial Vendors large & small hawking their wares

Reference DAC Module - Discrete R-2R Sign Magnitude 24 bit 384 Khz
Reference DAC Module - Discrete R-2R Sign Magnitude 24 bit 384 Khz
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 8th January 2015, 06:48 PM   #731
soekris is offline soekris  Denmark
diyAudio Member
 
Join Date: Jun 2009
Reference DAC Module - Discrete R-2R Sign Magnitude 24 bit 384 Khz
Quote:
Originally Posted by pooge View Post
I see the DACs listed on the EU site, but not the U.S. site. I believe I requested in time for the first batch, but don't see any way to order from the U.S. site. Will the first batch only be available by ordering on the EU site?
From #682:

As I said: "The webshops are preparing to take orders." So expect the US webshop to come up too....

Quote:
Originally Posted by alecm View Post
Could you upload data sheet or service manual ?
There will also be documentation available when shipping, but I'm doing the design first, then the docs, the engineering department is just me....
__________________
Søren
  Reply With Quote
Old 8th January 2015, 06:53 PM   #732
pos is offline pos  Europe
diyAudio Member
 
pos's Avatar
 
Join Date: Feb 2008
Location: Paris
Quote:
Originally Posted by soekris View Post
We do not plan to offer shipping using Postal services, as those are not that reliable, and tracking mostly don't work crossborder.
I have had the opposite experience, countless times...
UPS and GLS has always been a pain in the **s

Last edited by pos; 8th January 2015 at 06:55 PM.
  Reply With Quote
Old 8th January 2015, 08:24 PM   #733
gig is offline gig  Italy
diyAudio Member
 
Join Date: Jul 2009
Quote:
Originally Posted by soekris View Post
An update:

Shipping Cost:

First, I'm not the one actually running the webshops, so don't ask me about ordering or shipping details.
...
That also mean there is no need to preorder anymore. Also remember, this is not a group buy, the board will go into regular production, although we might at times run out of stock for short periods.
Sorry, didn' see your post and sent you PM today preordering 0.02% version and asking for shipping costs

Will order directly on your site when possible
Awesome project!
  Reply With Quote
Old 8th January 2015, 09:21 PM   #734
alecm is offline alecm  Ukraine
diyAudio Member
 
Join Date: Feb 2011
Location: Kyiv
Is it reasonably to add Super V/I converted For DAC OUTPUT STAGE WITH LL1684 LUNDAL TRANSFORMER on the output ?

http://www.diyaudio.com/forums/quang...ed-ll1684.html
  Reply With Quote
Old 8th January 2015, 10:29 PM   #735
spzzzzkt is offline spzzzzkt  Australia
diyAudio Member
 
Join Date: May 2005
Location: Melbourne
Quote:
Originally Posted by alecm View Post
Is it reasonably to add Super V/I converted For DAC OUTPUT STAGE WITH LL1684 LUNDAL TRANSFORMER on the output ?

http://www.diyaudio.com/forums/quang...ed-ll1684.html
I can't see why it wouldn't work.

The schematic shows the DAC has balanced outputs but I assume you could ground one input to the transformer and use the output straight from the R2R ladder.

Last edited by spzzzzkt; 8th January 2015 at 10:49 PM. Reason: Dyslexia rules KO...
  Reply With Quote
Old 10th January 2015, 11:19 AM   #736
Eldam is offline Eldam  France
Banned
 
Join Date: Sep 2012
Location: France
The best cd player I ever tweaked has a LL on this output (tweaked with RC on leads ike Lundhal advises) : the best sound I had, perfect tonal balance without lost bass !

Will be happy to see here a shematic of a tweaked 60 euros LL output transformer with the goods caps and resistor values in relation to the ouput spec of the SE and/or balanced Soekris Dac's output ! Not a super pcb : just a simple stereo LL output transformer at 60 euros should be enough because isolation is very well made in LL : no needs to put two mono transformer !

If a DC cap is needed with such DAC, the output transformer is the only choice not to waste the clarity !

Last edited by Eldam; 10th January 2015 at 11:22 AM.
  Reply With Quote
Old 10th January 2015, 11:42 AM   #737
analog_sa is online now analog_sa  Europe
diyAudio Member
 
analog_sa's Avatar
 
Join Date: Aug 2002
Location: Cascais
Quote:
Originally Posted by alecm View Post
Is it reasonably to add Super V/I converted For DAC OUTPUT STAGE WITH LL1684 LUNDAL TRANSFORMER on the output ?

http://www.diyaudio.com/forums/quang...ed-ll1684.html

Apart from it not being a V/I converter... or an I/V for that matter... it does indeed look "Super"

Some people just cannot enjoy music without the specific, clarity-inducing distortion of transformers. Of course if a dac, unlike a 9018, has a proper current output, a passive output stage might not work well at all.
  Reply With Quote
Old 10th January 2015, 11:53 AM   #738
Eldam is offline Eldam  France
Banned
 
Join Date: Sep 2012
Location: France
Quote:
Originally Posted by analog_sa View Post
Apart from it not being a V/I converter... or an I/V for that matter... it does indeed look "Super"

Some people just cannot enjoy music without the specific, clarity-inducing distortion of transformers. Of course if a dac, unlike a 9018, has a proper current output, a passive output stage might not work well at all.
If DC blocking is needed, an output transformer of a good quality and tuned with the good values of caps and resistor (look at Lundhal white paper) has not HEARABLE distorsion. Too many has the syndrom of scope measurement only whithout checking the tradeoffs with ears !

That's why we can read assertion like this above till the 80s' where a global feed back e.g; was used on amp because technically speaking it was better.

I'm bored all the time to read only noise as an absolute noise floor in spite of speaking of H2 to 5 or more and the "look" they have on the scope !

reals instruments have distorions ! A transformer at output can also reduce the ground loop while the tradeoffs can dictate not to use it if you don't really need it for DC blocking !

Tradeoffs............

Last edited by Eldam; 10th January 2015 at 11:55 AM.
  Reply With Quote
Old 10th January 2015, 12:55 PM   #739
analog_sa is online now analog_sa  Europe
diyAudio Member
 
analog_sa's Avatar
 
Join Date: Aug 2002
Location: Cascais
I don't much obsess about measurements and square waves either. In the past i have used S&B TX103, Lundahl LL1544/1674/1676/1690 and a myriad of MC step-ups, so dare speak out of personal experience.

No argument that a transformer makes a reasonably nice "quick&dirty" output stage for something like a 9018 which does not really need an I/V, but the sound is far from what is possible with a proper active stage. Of course this is only my prejudiced subjective opinion.
  Reply With Quote
Old 10th January 2015, 12:57 PM   #740
TNT is offline TNT  Sweden
diyAudio Member
 
Join Date: Apr 2003
Location: Sweden
_sa, can you show an example of such superior active output stage?

//
  Reply With Quote

Reply


Reference DAC Module - Discrete R-2R Sign Magnitude 24 bit 384 KhzHide 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
e18 DAC - 8 channels at 32bit /384 kHz exa065 exaDevices 30 29th June 2012 05:11 PM
384 Khz DAC? SunRa Digital Source 8 1st October 2009 11:14 PM
24 bit/192 kHz via USB? gentlevoice Everything Else 3 22nd December 2008 06:24 AM
sign magnitude DAC Bernhard Digital Source 0 30th January 2007 01:40 PM
24 bit / 192 kHz Tube DAC questions Overlord Digital Source 4 29th April 2003 05:14 PM


New To Site? Need Help?

All times are GMT. The time now is 07:11 AM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.00%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright ©1999-2017 diyAudio
Wiki