DAC-END R (ES9018) full assembled board

[milezone]

Quanghao, I've been trying to get in touch. I ordered a full kit and am wondering what the status is. Would it be possible to ship a working/tested/assembled version? I've paid in full. Please let me know. Thank you.

 

[sipo75]

Are these thru-holes intended for mounting a shield?

 

[quanghao]

hi quanghao,

Could you explain the complate dac price ? i missed it i guess.Am i have to make extra 150 dolar payment for DAC?

DAC-END R (ES9018) complete
you have purchased the following items:

1. - DAC module assembled and tested with all componentsfive shunt regulator
2. - DAC controller assembled and tested
3. - Chassie
4. - Transformer 2 x 6-0V 2A + 4 x 18V 1A or 2 x 9V 2A + 2 x 18V 1A
5. - Output stage, only passive I/V

I will be assembling, finishing and inspection include the following:


1. All Input and output connectors
2. 4 x opam 2134 for IV
3. installation of parts, inspection and finishing
4. one year warranty for all finished products
5. shipped to you.


Your job: pay me $ 150 for installation costs,
and freight (if you have not already paid), to receive it and enjoy the music.

quanghao

 

[quanghao]

Quanghao, I've been trying to get in touch. I ordered a full kit and am wondering what the status is. Would it be possible to ship a working/tested/assembled version? I've paid in full. Please let me know. Thank you.

please wait me, if you not have name in this GR before, the next time i you will have it!

thanks

 

[quanghao]

Are these thru-holes intended for mounting a shield?

View attachment 354483

Yes, you are wise, it is attached to the shield if you enjoy.
thank you!

 

[i2k92]

Hi all,

I'm confused about the transformer requirement. On page 17, Quanghao mentioned that the the DAC can be powered by max 0-9V and 18-0-18V. And now it become max 0-6.3V. Which one is correct ? I know that higher voltage = higher regulator temperature, but is 9V still acceptable ?

I already have an r-core 2x9V and finding good 6V transformer is not easy. The reason why I didn't buy the trafo from Quanghao is because I want to use what I already have. For the analog stage, temporarily I'll use Noratel toroid 2x18v 160VA while I'll get smaller r-core with four 18v secondary winding that I'll wire as 2 center tapped output.

These are the transformers that I will use, pls confirm that they're OK :
2 x 9V 30VA which I have already
4 x 18V 40VA

or

2 x 18V 30VA

or use only 1 of this :

0-6.3 X2 (1.1A),320-0-320(60mA), 0-15 X2 (1.5A)

 

[quanghao]

4 x 18V 40VA

I'm so sorry you about this,

1. you can use this, but pay attention to the temperature for 2 LT 1963.

2.in the long term should you use low voltage transformer more, to secure the heat
thanks

 

[smoothquark]

DAC-END R (ES9018) complete
you have purchased the following items:

1. - DAC module assembled and tested with all componentsfive shunt regulator
2. - DAC controller assembled and tested
3. - Chassie
4. - Transformer 2 x 6-0V 2A + 4 x 18V 1A or 2 x 9V 2A + 2 x 18V 1A
5. - Output stage, only passive I/V

I will be assembling, finishing and inspection include the following:


1. All Input and output connectors
2. 4 x opam 2134 for IV
3. installation of parts, inspection and finishing
4. one year warranty for all finished products
5. shipped to you.


Your job: pay me $ 150 for installation costs,
and freight (if you have not already paid), to receive it and enjoy the music.

quanghao

Hi Quanghao, I have already sent a pm but not had a response. I have paid for 2x opa2134 and 2x opa627. I presume you will fit these instead of the 4x opa2134 if I pay the extra $150?

 

[Halook]

Hi audiodesign/quanghao,

1. What is the highest frequency that the coaxial input can support?
I have tested the coaxial input that frequencies higher than 48kHz were not able to lock. Any clue?

2. How do we set those dip switches?

 

[i2k92]

4 x 18V 40VA

I'm so sorry you about this,

1. you can use this, but pay attention to the temperature for 2 LT 1963.

2.in the long term should you use low voltage transformer more, to secure the heat
thanks

Thanks Quanghao. BTW, congrats for the baby. I can imagine how difficult to handle 2 babies at the same time (the DAC & real human baby).

 

[kuribo]

what is the total cost of a completed unit, without shipping?

 

[Boxi80]

I don't have the DAC yet, but I was thinking that it would be nice if a document could be prepared by Quanghao and Audiodesign about how to setup the DAC properly and what is the meaning of each jumper and pin...
I think that all the informations are alreay in the thread, but I must confess that I'm lost... maybe everything could just be placed in the first post of the discussion... this would be really helpful!
Thanks

 

[audiodesign]

Hi audiodesign/quanghao,

1. What is the highest frequency that the coaxial input can support?
I have tested the coaxial input that frequencies higher than 48kHz were not able to lock. Any clue?

I have tested the toslink optical and spdif coax inputs until 96KHz with different USB-spdif device without problems.

Which is your spdif device and cable ?

 

[audiodesign]

Hi audiodesign/quanghao,

2. How do we set those dip switches?

This dip-switch are necessary only if you want to use the 3 spdif input without the controller lcd module.

Amanero module cannot be used without the controller.

 

[smoothquark]

Hi Quanghao. I have now sent the extra $150 by paypal.

 

[Alchamist]

I sent extra 150$ also.

 

[quanghao]

Hi Quanghao. I have now sent the extra $150 by paypal.

ok, tks!

 

[myfavoritething]

Hello Ganghao, I sent you 260 USD for DAC fini + 2134 + 627. Thanks

 

[Erlend Sæterdal]

ok, tks!

I do not understand those extra 150 dollars ? If I choose to asemble the dac myself then what ?

 

[MattMax]

Hi Quanghao,

Just sent USD 150 for installation of full DAC. Please use 2 Toslink inputs as discussed (Toslink instead of AES/EBU). I already have an Amanero USB input. Can you please add a cut-out in the chassis so I can add the Amanero myself?
Thanks!

Matt