D1V3 DAC

Update on Nov 6, 2009:

Please look at the document below “Upgrade from D1V3 to D1V33“.  This is a worth while upgrade for the jfets to K369BL.  The major impact is that the input impedance of Jfet IV will be half which is estimated to be about 12 ohm while original D1 is about 10 ohm. The final result can be easily observed on the sonic improvement of the sound!

Project completed on Nov 11, 2007:

This is D1V3: Please refer to D1V3 Assembly Manual for details.

Documentation:

D1V3 Silk Top

D1V3 PCB Dimension

D1V3 Circuit Diagrams

D1V3 BOM

D1V3 Assembly Manual

Upgrade from D1V3 to D1V33

Some discussion in forum:

http://www.head-fi.org/forums/f6/pass-labs-d1-clone-kit-324197/

http://www.diyaudio.com/forums/vendors-bazaar/97504-np-d1-dac-clone-enhancement.html

http://www.diyaudio.com/forums/pass-labs/116699-pass-d1v3-dac-build-thread.html

http://www.diyaudio.com/forums/digital-source/126799-reclocking-balanced-pcm63.html

http://www.diyaudio.com/forums/pass-labs/124891-jfet-d1-i-v-stage-ess-sabre-dac.html

http://www.diyaudio.com/forums/pass-labs/138734-d1-clone-without-enhancements.html

http://www.wretch.cc/blog/cs691208/17142644

http://www.diyplus.net/phpBB3/viewtopic.php?f=38&t=230

http://www.homecinema-fr.com/forum/viewtopic.php?f=1054&t=29924957

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