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-   -   DAC-END 24 (AD1865 NOS DAC ) (https://www.diyaudio.com/forums/quanghao-audio-design/265459-dac-24-ad1865-nos-dac.html)

quanghao 26th November 2014 10:37 PM

DAC-END 24 (AD1865 NOS DAC )
 
10 Attachment(s)
DAC-END 24 (AD1865 NOS DAC )

AD1865 is a dac chips with natural sound and inspiring.

ago, Andrea and I had success with DAC-end, now I have upgraded dac-end 16-bit, 24-bit up-end DAC.

it receives the input frequency of 192 KhZ- 24bit and special use Amanero to use USB audio source from your computer.

invited to view some links:
DAC End - the AD1865N-K with single ended vacuum output stage
http://www.diyaudio.com/forums/quang...at-2011-a.html
DAC End 2 - the AD1865N-K with single ended vacuum output stage


DESRICRIPTIONDAC-24

NOS DAC-AD1865- 192Khz
Quanghao-Andrea

Description:
DAC AD1865 unit accept 192KHz input with operate NOS (non-oversampling) mode.
  • Structure:
Digital input:
1 x coaxial input,
1 x Optical
1 x AES/EBU- Balance in put
1 x USB Amanero
1 x selected in put
1x AD1865
1x Cs8416
1x HQ-01 Transfomer supply: 0-6V*2
Analog output : R IV passive
Digital section : using AD1865 as digital receiver CS8416 + Amanero USB.

DAC module assembled and tested with all components

  • DAC kit Design construction:
1. NOS (non-oversampling) application
2. 3 x low noise, low Z-out shunt regulator
3. 2 x LT regulator for Digital + USB
4. 4 stages regulation for digital section
6. Audio grade components were used.
7. OSCON capacitors used for digital section
8. The composition resistors Vishay error of 1%,
9. 1 x Transfomer supply: 0-6V *2

PCB size 216 mm x 110 mm, 1.6 mm double sides board with gold plated.

Optional: You are welcome to ask if you have any question on the assembly and more information.
Shall not be reproduced without consent!

mkrochin 7th December 2014 06:36 PM

Hi, I'm very, very interested this project including tube output with Lundahl trafos.

zubrze 10th December 2014 06:47 AM

This looks like an awesome increment in the DAC-End design. I'm also very interested in buying one of these. Are you selling them yet Quanghao?

quanghao 14th December 2014 05:09 AM

Quote:

Originally Posted by zubrze (https://www.diyaudio.com/forums/quanghao-audio-design/265459-dac-24-ad1865-nos-dac-post4147966.html#post4147966)
This looks like an awesome increment in the DAC-End design. I'm also very interested in buying one of these. Are you selling them yet Quanghao?


please see in: http://www.audiodesignguide.com/AD1865v2/index.html

and PCB ll1660 i will make now
thanks

zubrze 14th December 2014 10:42 AM

Many thanks Quanhao, I can't wait to get one! When do you think the LL1660 boards will be ready?

goodjingan 1st January 2015 12:45 PM

will there be a finished dac in a chassis with 2 vrms output ? how much will it cost ?

Marduker 8th January 2015 06:49 AM

DAC
 
This looks like very promising. When that tube output stage board will be avaible ? Thanks.

quanghao 9th January 2015 10:16 PM

Quote:

Originally Posted by goodjingan (https://www.diyaudio.com/forums/quanghao-audio-design/265459-dac-24-ad1865-nos-dac-post4169715.html#post4169715)
will there be a finished dac in a chassis with 2 vrms output ? how much will it cost ?


quanghao 9th January 2015 10:20 PM

Quote:

Originally Posted by Marduker (https://www.diyaudio.com/forums/quanghao-audio-design/265459-dac-24-ad1865-nos-dac-post4178066.html#post4178066)
This looks like very promising. When that tube output stage board will be avaible ? Thanks.

yes

dac not chip AD 1865 : 300$

Have: 1x USB + board DAC+ 1 seloctor

PCB IV : 30 $
Shiing: 50
thanks

zubrze 10th January 2015 07:33 PM

Looks good Quanghao. Any details on the IV boards? Are these the LL1660 version?

Do I understand rightly that your DAC board does not include the AD1865NK Chip? Ebay is full of fakes! Do you know where to get the real thing from? Also, does the Dac-End24 board include the Transformer?

All the best for 2015!


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