Rank: Advanced Member
Groups: Member
Joined: 9/7/2010(UTC)
Posts: 43
Location: San Diego
Thanks: 1 times
|
Finally completed the new DAC based largely on boards from TPA. As usual over budget and behind schedule! Specs are: Input: SPDIF (Coax, BNC and optical (using 4:1 MUX)) and USB (Amanero) Main DAC: ESS9038PRO (TPA BIISSEPRO) Power: 2x100VA torroids for digital and analogue sections, one 20VA torroid for the Arduino Due. Current to Voltage Conversion: TPA Mercury USB Conversion: Amanero + Isolation (Hermes) + Reclocking (Cronus) Analogue Out: SE and balanced Control: Arduino Due (inputs, dac options, display dimming), controlled via Apple remote Display: LCD Case: HiFi2000 with custom front and rear panels from Front Panel Express Control switches options on the DAC and the input switch board. I originally was planning to address the DAC directly but opted to instead switch via the switching available on the DAC board. The only real disadvantage I see is that I can't display the sample frequency. Code for the Arduino was written from scratch (having never written C++ code and only having coded eons ago in Basic it was a challenge!) How does it sound? Very nice, a definite step up from the older ES9018 that it replaced. Not sure if the improvement stems from the DAC or the new Mercury, either way the soundstage is far deeper, more holographic. There are nuances in recordings that I did not notice prior. Nice work Russ and Brian.  P1200426.jpg by Martin Carrington, on Flickr  P1200423.jpg by Martin Carrington, on Flickr  P1200424.jpg by Martin Carrington, on Flickr Edited by user Tuesday, March 20, 2018 4:10:11 AM(UTC)
| Reason: Not specified
|
|
|
|
|
|
Rank: Administration
Groups: Administration, Customer
Joined: 10/24/2006(UTC)
Posts: 2,868
Location: Massachusetts, USA
Thanks: 2 times
Was thanked: 141 time(s) in 134 post(s)
|
|
|
|
|
|
|
Rank: Administration
Groups: Administration, Customer
Joined: 10/24/2006(UTC)
Posts: 3,979
Location: Nashville, TN
Thanks: 25 times
Was thanked: 89 time(s) in 83 post(s)
|
That's a real beauty! I hope you enjoy it!
Cheers!
Russ
|
|
|
|
|
|
Rank: Advanced Member
Groups: Member
Joined: 9/7/2010(UTC)
Posts: 43
Location: San Diego
Thanks: 1 times
|
Thanks guys, really the credit totally goes to you two. I can assemble a kit of parts and mess with code and build cases but could never develop the skill (or have the time!) to get into the level of circuit design and optimization that you do! Much appreciated.
|
|
|
|
|
|
Rank: Administration
Groups: Administration, Customer
Joined: 10/24/2006(UTC)
Posts: 3,979
Location: Nashville, TN
Thanks: 25 times
Was thanked: 89 time(s) in 83 post(s)
|
When people ask how to finish a project and arrange modules in a case I am going to show them your fine work! Thanks for the kind words.
|
|
|
|
|
|
Forum Jump
You cannot post new topics in this forum.
You cannot reply to topics in this forum.
You cannot delete your posts in this forum.
You cannot edit your posts in this forum.
You cannot create polls in this forum.
You cannot vote in polls in this forum.
