DAC-END 24 (AD1865 NOS DAC )

[quanghao]

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/quan...287-dac-end-best-dac-ad1865-updat-2011-a.html
DAC End 2 - the AD1865N-K with single ended vacuum output stage

DESRICRIPTION DAC-24

NOS DAC-AD1865- 192Khz
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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]

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

 

[zubrze]

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]

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]

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

 

[goodjingan]

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

 

[Marduker]

DAC

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

 

[quanghao]

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

 

[quanghao]

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]

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!

 

[zubrze]

Looks like a very different (simpler) DAC power supply on this board to your old 2011 version which used the shunt regs. What was the thinking behind this?

 

[quanghao]

Looks like a very different (simpler) DAC power supply on this board to your old 2011 version which used the shunt regs. What was the thinking behind this?

yes all shunt
and please see vidio AD1865 with Amanero USB:

https://www.youtube.com/watch?feature=youtu.be&v=TqX1Xdxw9fg&app=desktop

thanks

and some image

 

[klaju1955]

Hi Quanghao,

you are still selling this DAC?

 

[quanghao]

yes

 

[klaju1955]

Still this price?:

dac not chip AD 1865 : 300$

Have: 1x USB + board DAC+ 1 seloctor

PCB IV : 30 $

Shiing: 50

What is Shiing????

It is without transformator???

I do not see Caddock 200R on the PCB???

Voltage for Amanero is from DAC or USB?

You have schematics for exactly this DAC and the IV PCB???

 

[rol]

* shipping
* with transformer
* the caddock 200r are optional, there are already 2 Melf resistors onboard. They are just as good as the caddock.
* there is a jumper to use either the power from dac or the amanero itself.

 

[klaju1955]

Thank,s Rol,

you´ve bought the kit?

The IV PCB look´s interesting, Quanghao seperated the tubes sockets from the PCB? For what he made this?

I´ve still here a kit of the first End-DAC, the IV circuit might by the same?

Just have the IV PCB for lundahl 1660 with ECC182 stage?

The "old" DAC-end have 6 voltage rail, it wan´t better or was simples to much?

The price of the assabled DAC the Amanero USB is just incluided?

 

[rol]

Yes, I just received the kit today.

This time the tubes are mounted horizontally so they need separate boards.

The IV is almost the same, just with some tweaks for tube choices and room for bigger film caps.

AFAIK, the new Lundahl IV is in the work.

The PSU seems to be simpler than last revisions. Still very good, way more than enough to provide clean power for the DAC.

Yes, for $300 there are the Amanero and transformer for DAC section. No stock for the Amanero right now though.

 

[quanghao]

Yes, I just received the kit today.

This time the tubes are mounted horizontally so they need separate boards.

The IV is almost the same, just with some tweaks for tube choices and room for bigger film caps.

AFAIK, the new Lundahl IV is in the work.

The PSU seems to be simpler than last revisions. Still very good, way more than enough to provide clean power for the DAC.

Yes, for $300 there are the Amanero and transformer for DAC section. No stock for the Amanero right now though.

hi!

what i can hepl you now ??
thanks

 

[mkrochin]

Hi Quang Hao.
I'd like to buy assambled and checked:
1) DAC (AD1865) with Amanero-USB module but without transformer
2) R2R shunt volume without standby configuration and without RCA sockets. Black remote control and red LCD display will be welcome.
Shipping-Poland
I'll do appreciate for quick replay, Marek.