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Sep 28, 2015 at 12:59 AM Post #9,841 of 10,939
The PC itself:


CPU: Core i7-3930k
MB: DX79SI
RAM: 16GB 1600 DDR3
GPU: GTX 970 4GB
Display: 50" Seiki 4K
Cooling: 120mm Delta side panel fan with Cindy Wu sensorless DSP drive and 212 Evo with fan upgrade
PSU: 900W (550W + 350W) Lainey Schmidt digital power system with PFC bypass
Storage: 128GB Samsung 840 Pro SSD (/, ext4) and 2x 1TB HDD RAID 0 (/bulk, ext4)
 
The DAC/amp unit:

DAC chip is PCM1792A, IV converter opamps are OPA1612, output driver opamps are TPA6120A2.
Design details at https://github.com/NiHaoMike/OpenDAC-HD .
 
Sep 28, 2015 at 8:22 PM Post #9,844 of 10,939
nihaomike said:
  The PC itself:
 
CPU: Core i7-3930k
MB: DX79SI
RAM: 16GB 1600 DDR3
GPU: GTX 970 4GB
Display: 50" Seiki 4K
Cooling: 120mm Delta side panel fan with Cindy Wu sensorless DSP drive and 212 Evo with fan upgrade
PSU: 900W (550W + 350W) Lainey Schmidt digital power system with PFC bypass
Storage: 128GB Samsung 840 Pro SSD (/, ext4) and 2x 1TB HDD RAID 0 (/bulk, ext4)
 
The DAC/amp unit:
 
DAC chip is PCM1792A, IV converter opamps are OPA1612, output driver opamps are TPA6120A2.
Design details at https://github.com/NiHaoMike/OpenDAC-HD .
Click to expand...

 
I like it! Especially the fairy. :)
 
You got a 'how to' on the DAC assembly?
 
Sep 28, 2015 at 10:21 PM Post #9,845 of 10,939
htr2d2 said:
   
I like it! Especially the fairy. :)
 
You got a 'how to' on the DAC assembly?
Click to expand...

That's actually a very good friend of mine, who is a digital communications engineer and a model. She does have the nickname "DSP fairy" since she's really good with implementing DSP and other communications related logic in Verilog.
 
On to the DAC, it's a project I did with my best friend. She's a software engineer and a model (can you tell that I really like those who are both engineers and models?), but her most unusual highlight is that audio hardware she works on magically becomes better. I only had some limited time with her before she had to go back for study, so I decided to make the best of what could end up as a once in a lifetime opportunity. In the end, I got a unique top notch DAC, she got some embedded programming experience, and both of us had a great time.
 
Sep 28, 2015 at 11:19 PM Post #9,846 of 10,939
nihaomike said:
  That's actually a very good friend of mine, who is a digital communications engineer and a model. She does have the nickname "DSP fairy" since she's really good with implementing DSP and other communications related logic in Verilog.
 
On to the DAC, it's a project I did with my best friend. She's a software engineer and a model (can you tell that I really like those who are both engineers and models?), but her most unusual highlight is that audio hardware she works on magically becomes better. I only had some limited time with her before she had to go back for study, so I decided to make the best of what could end up as a once in a lifetime opportunity. In the end, I got a unique top notch DAC, she got some embedded programming experience, and both of us had a great time.
Click to expand...


You are a lucky man.
biggrin.gif
<-- green with envy.
 
Thank you.
 
Sep 30, 2015 at 1:12 AM Post #9,848 of 10,939

 
Here's my rig so far :) 

Modi is gone and looking to upgrade the DAC.
 
Focals are on sale and looking to get some bookshelf speakers. 
 
Now back to work!
 
Oct 4, 2015 at 9:32 AM Post #9,849 of 10,939
My newest build:
 



 
 
Using an Asus Xonar Essence STX, with a custom backplate. (about to order Schiit Magni 2 as replacement for the AMP)
 

 
DIY Headphone-stand with my newest addition: Beyerdynamic DT-770 Pro.
 

 
Oct 4, 2015 at 5:35 PM Post #9,850 of 10,939
Nice rig.
 
Oct 5, 2015 at 11:50 AM Post #9,854 of 10,939
lin0003 said:


My first PC build, pretty average compared to some of the other stuff on here. 
Click to expand...


Pretty nice for a first build, what are the secs? I see an asus strix, 2x 850 pros, cooler master (hyper 212?) but that's all I can really pick out.
 
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