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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 14th June 2011, 05:33 PM   #471
Ryssen is offline Ryssen  Sweden
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Got the board today,very fast shipping..
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Old 14th June 2011, 11:52 PM   #472
Ryssen is offline Ryssen  Sweden
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Quanghao do you have a BOM for the board you sent me as the resistornumbers dont match with the new pcbs?


Edit:Actualy I see now this board only have one kathode resistors wheras the new board has 2/tube...
Didnt you have any new Pcbs to send?....

Last edited by Ryssen; 15th June 2011 at 12:14 AM.
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Old 15th June 2011, 12:43 AM   #473
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Quote:
Originally Posted by Ryssen View Post
Quanghao do you have a BOM for the board you sent me as the resistornumbers dont match with the new pcbs?


Edit:Actualy I see now this board only have one kathode resistors wheras the new board has 2/tube...
Didnt you have any new Pcbs to send?....
you go to download:
DAC-END The best DAC AD1865- UPDAT 2011
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Group buy DAC-END R (ES9018) full assembled board
update 06/14/2013 :http://www.audiodesignguide.com/DAC32/index2.html
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Old 13th July 2011, 04:37 PM   #474
Strosek is offline Strosek  Canada
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Quote:
Originally Posted by quanghao View Post
The Iv stage!
if you use for DAC, the R29, R30, R45, R46 = 2K
If you use the sample On Pre: R29, R30, R45, R46 = 220K!
Thanks
Quanghao,

Can you explain this in more detail..?

I'm using 220K and I'm using it with a DAC! Are you saying I should be using 2K?
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Old 14th July 2011, 02:22 AM   #475
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Quote:
Originally Posted by Strosek View Post
Quanghao,

Can you explain this in more detail..?

I'm using 220K and I'm using it with a DAC! Are you saying I should be using 2K?
1. if you use for DAC, that is 1K,9 2K//2K) it is one par filter for DAC
On PCB DAC, there are 0.01uF +L + 1K( but 1k I put one PCB IV)

2. If use the sample one PRE, that is 100-220K

thanks
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Old 14th July 2011, 02:49 AM   #476
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Quote:
Originally Posted by Ryssen View Post
Quanghao do you have a BOM for the board you sent me as the resistornumbers dont match with the new pcbs?


Edit:Actualy I see now this board only have one kathode resistors wheras the new board has 2/tube...
Didnt you have any new Pcbs to send?....
Please go to this link, the DAC-END up dat 20011

The best PCB and excellent layout, the best sound:.

DAC-END The best DAC AD1865- UPDAT 2011
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Group buy DAC-END R (ES9018) full assembled board
update 06/14/2013 :http://www.audiodesignguide.com/DAC32/index2.html
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Old 14th August 2011, 09:34 PM   #477
Yomanze is offline Yomanze  United Kingdom
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Has anyone lowered the 33R CCS resistors to 15R or another value? Thinking some more current wouldn't hurt with decent heatsinks? Lots of people on the Salas DCB1 reporting better sound with higher current.
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Old 15th August 2011, 02:02 PM   #478
Ryssen is offline Ryssen  Sweden
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In another DAC Experience with this DIY DAC ?
I use salas shunt and I use 15 ohms without heatsinks,works fine.
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Old 16th August 2011, 05:10 PM   #479
Yomanze is offline Yomanze  United Kingdom
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Thanks Ryssen!
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Old 8th September 2011, 01:47 AM   #480
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im interest of dac ash.... did you have stock of pcb mr quanghao??
please give me total cost 1set pcb dac ash n payment method..
i send u email from ermac_1982@yahoo.com
thank you
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