August 3, 2009

Waiting...

Just waiting on output transformers to arrive from Sydney...will post as soon they are installed.

July 17, 2009

Transformers fitted...power up!


Fitted the two transformers and have powered up the DAC...All is very good tested all inputs at different bitsreams very happy with sound, but of course will have to modify. Please excuse dodgy wiring and don't try this at home unless you know what your doing!





Pic7. Plugged into system for testing






Pic 8. Power Connected!

July 14, 2009

Need two transformers!

Actually will be needing two transformers for the moment, or one with 2x separate secondary wiring's....Not really stressed have already picked one for analog/filter section which supplied 13v,ov,13v AC. I need one for digital section power supply 0v,9v AC. So I will be test running the DAC with this setup, but the next step in this project will be to bypass the analog/filter section all together...So i will be back to one transformer then:-)




Pic6. Transformer and some wiring components
and plywood prototype board


July 13, 2009

Transformer is found

Found a suitable power transformer, looks like a visit to my local Jaycar shop is in order


and of course a few other bits

Hello, thanks for dropping by...

Hello everyone! Welcome to my BLOG. Seeing that most Blogs are boring as bat shit I decided to make mine even more boring to the average layperson and dedicate this to HI-FI. So lucky for u audiophiles out there! So first up I will be posting some pics and notes on me building a 24bit 192Khz DAC convertor for my Hi-fi. Truth be told the main assembly of the DAC PCB assembly has already been done by some poor Chinese man in Hong Kong, all I will be adding is a mains power transformer, casework and some modifications I have picked up from this good DIY audio website http://www.diyaudio.com/

This will be a part time project so posting will be infrequent...here are some pics of the DAC as it arrived from Hong Kong (thanks to Mako and Ebay)



Pic 1. DAC complete PCB assembly



Pic 2. Input and Output Detail




Pic 3. Power Supply Detail




Pic 4. IC details




Pic 5. Upconvertor Daugter Board



This unit uses a Cirrus Logic CS4398 DAC (Pic.4 lower right) for u techheads out there which can handle 24bit 192khz SPDIF audio streams, using the optional plug in daughter board (Pic5). This unit can take standard SPDIF digital stream on optical, coaxial and USB 48khz also which is a bonus

So basically now I have to find a suitable power transformer to get this cranking...