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Quanghao Audio Design Quanghao Audio Design is a producer of DIY Audiophile Kits and PCB boards, selected from many listening tests!

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Old 20th June 2016, 08:23 AM   #1
quanghao is offline quanghao  Viet Nam
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Join Date: Sep 2009
Location: Vietnam
DSD-S1 DAC Send a message via Yahoo to quanghao DSD-S1 DAC
Default DSD-S1 DAC

After the great success the first version to V3, design Andrea and Quanghao
Now. I opens this new group buy to produce a new series of DAC, with chip ES9018.

I used 8 x LT3042 replacement for low shunt

LT3042 - 20V, 200mA, Ultralow Noise, Ultrahigh PSRR RF



Quanghao will produce these modules with little gain to promote this product, in the near future this DAC will be sold as a finished product at about 3000$ - 5000$.

This DAC ES9018 module have these features:
All use : LT3042 - 20V, 200mA, Ultralow Noise, Ultrahigh PSRR RF

- separated LT3042 Ultralow Noise for any digital section
- separated LT3042 Ultralow Noise for any analog channel
- remote volume control
- remote mute control
- remote input control
- digital filter control
- microcontroller to remap DAC to share I2S connection with DSD
- Amanero module integrated to have USB input
- Support 44,88,96,192,352,384KHz PCM and DSD to play SACD ISO
- ground isolation from USB module
- On board reference 100MHz Crystek oscillator with a jitter of 0.5psec
- 3 spdif input: coax RCA, Toslink optical and AES/EBU
- optional passive I/V
- 4 row x 20 characters LCD
- 5V LCD
- large dB volume display
- Tranfomer stanby


This options are available and here the new cost:

1) DAC module assembled and tested with all components
- ES9018 chip,
- Crystek 100MHz top performances oscillator (CCHD-950-25-100),
- 7 regulator use 0.8uV LT3042: 6 for ES9018 ( digital + analog supply) + 1 for USB amanero
- All digital connectors
- Controller to change volume, input and other parameters
- 20x4 LCD, with encoder
- Infrared remote command
- Amanero module not included
price 550$

2) Chassie only use for Tube IV:
A. Chassis: 1.2 mm iron, powder coated black,
feet high with 10mm screw the bottom canopy available. Look so beautiful.
2. front: aluminum anodized silver color:
15 mm thickness,
Size: 15 mm x 90 mm x 430 mm
Weight: 4 kg
price 200$

3) PCB IV + PCB supply IV price 60$

4) Tranfomer for tube :
Input: 0-220V
Ouput: 0-12V/ 3A x 1, 0-220V/ 150mA x 1
Weight: 3kg
Price: 60

5) Complete assembled DAC with Tube IV use 4 x 12AU7, the price: 1500$ each.

shipping: I will calculate your specific to different countries, shipping by TNT or Fedexl

Minimum subscription amount is: 10 members.
When enough 10 I will conduct the production.
You are invited to attend
Thank you very much!
Attached Images
File Type: jpg DSD ES9018 S1.1.jpg (176.3 KB, 320 views)
File Type: png DSD ES9018 S1.1.PNG (112.4 KB, 315 views)
File Type: png DSD ES9018 S1.2.PNG (95.5 KB, 309 views)
File Type: png DSD ES9018 S1.3.PNG (360.7 KB, 301 views)
File Type: png DSD ES9018 S1.4.PNG (341.0 KB, 299 views)
File Type: png DSD ES9018 S1.5.PNG (308.1 KB, 87 views)
File Type: png LCD 1.PNG (122.9 KB, 82 views)
File Type: jpg remote dsd dac.jpg (21.3 KB, 74 views)
File Type: png LCD 1.2.PNG (114.3 KB, 74 views)

Last edited by quanghao; 20th June 2016 at 08:45 AM.
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Old 20th June 2016, 10:01 AM   #2
quanghao is offline quanghao  Viet Nam
diyAudio Member
 
Join Date: Sep 2009
Location: Vietnam
DSD-S1 DAC Send a message via Yahoo to quanghao DSD-S1 DAC
This is designed structure -DSD s1.

I used to add a transformer feeding power to the LCD, in the standby mode.
Attached Images
File Type: jpg Structural-design-DAD-S1-DAC.jpg (382.3 KB, 136 views)
File Type: jpg Structural-design-power-supply-DSD-S1-dac.jpg (484.6 KB, 135 views)
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