DAC-END R (ES9018) full assembled board

[audiodesign]

Sorry but I don't understand your problem.

The production of the dac modules goes on.

 

[audiodesign]

Quangau have published on another thread the schematic of a commercial product and this is not allowed by diyaudio moderators.

Sometime there are references to commercial product but promote a clone is considered a bad action.

 

[gjorgji]

Sorry but I don't understand your problem.

The production of the dac modules goes on.

No problem at all if he can continue with production. What I don't want is: couple of months down the road, because of IP, this to be a problem.

 

[JohnGeneva]

having difficulty understanding, Is this DAC a cloned product, I thought it was audiodesign and Quanghao that came up with it together.

Want to correctly support intelectual property as well as diyaudio community. Please let me know as I am interested in one of the DACs if anyone from the group buy list drops out.

Thanks, John

 

[glt]

...I thought it was audiodesign and Quanghao that came up with it together.

...

That is correct. I don't know the exact details, but his "lock-out" is unrelated to his work on this DAC.

 

[gjorgji]

That is correct. I don't know the exact details, but his "lock-out" is unrelated to his work on this DAC.

Good to know .. do you know the thread that caused his lockout?

 

[JLOP]

http://www.diyaudio.com/forums/solid-state/174468-very-best-amplifier-i-have-ever-heard-78.html

 

[milezone]

Quanghao, this is the third time I've asked that you respond to a message I sent you regarding a mistake you made in your list of paid vs unpaid members. Please respond asap.

 

[glt]

Quanghao, this is the third time I've asked that you respond to a message I sent you regarding a mistake you made in your list of paid vs unpaid members. Please respond asap.

I think getting locked out of his account also prevents him from replying to your PM

 

[TarnishedEars]

I hope that the moderators on this forum are aware of the conundrum which has been created for some of us by having Quanghao locked-out.

 

[JLOP]

Probably his Google mail is not locked. See contact at his web site

 

[Alchamist]

Hi this type of displays look nice also

2013 New Version Yulong Sabre DA8 DSD 32bit 384kHz DAC Decoder Amplifier | eBay

 

[audiodesign]

Here the photos of the first final board assembled, email received today by Quang Hao

 

[bertchai]

Looking good.

 

[Erlend Sæterdal]

What about opamps. Do I need Single or dual ? How many do I need ?

 

[jinkslynx]

Tab on top of every page "search this thread". Input "opa627"

-Rgs

 

[la1209]

Any updated news?

 

[audiodesign]

What about opamps. Do I need Single or dual ? How many do I need ?

The op-amp output stage of this DAC use 2 x dual op-amp for each channel.

I have used a dual OPA627 module as first and OPA2134 like second.

Otherwise you can use 4 x OPA2134 or any other dual op-amp.

 

[Erlend Sæterdal]

Thank you ! Then I will use 4 x AD 8620


Oh I forgot it can only be used up to 12 V .

 

[Erlend Sæterdal]

Thank you ! Then I will use 4 x AD 8620


Oh I forgot it can only be used up to 12 V .

Bought 4 x OPA 1612



Burr Brown OPA1612 Soundplus High Performance Bi Polar Op Amp SOIC 8 Pin Package | eBay