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-   -   DAC-END R (ES9018) (http://www.diyaudio.com/forums/digital-source/220006-dac-end-r-es9018.html)

quanghao 19th September 2012 09:59 AM

DAC-END 32 bit
 
8 Attachment(s)
After the success of DAC-END with Andrea Ciuffoli:
DAC End - the AD1865N-K with single ended vacuum output stage

DAC End 2 - the AD1865N-K with single ended vacuum output stage


Andrea and Quanghao continue to study the DAC, with ES9018 chip, a DAC chip and new potential.

After nearly two years of support from chip manufacturers and work with Andrea, He and I had initial success with the 32-bit DAC, we call it the
DAC-End R.

The sound is Very detailed and balanced, high fidelity, very impressive to me!

These are the first images of the DAC-End R

Thanks you!

quanghao 19th September 2012 10:24 AM

1 Attachment(s)
Here is the block diagram of the DAC-END R.
Maybe we'll put the volume control , input and output and more.

Output: Tube or IV opam.

Power supply used for DAC , we use many separate Shunt regulater.

qusp 20th September 2012 08:05 AM

I really think ESS needs multilayer PCB

abraxalito 20th September 2012 08:20 AM

Quote:

Originally Posted by quanghao (Post 3170652)
The sound is Very detailed and balanced, high fidelity, very impressive to me!

So the $64,000 question - does it sound better than the AD1865 or is this just to accommodate customers who want more bits?

quanghao 20th September 2012 08:43 AM

1 Attachment(s)
Quote:

Originally Posted by qusp (Post 3171821)
I really think ESS needs multilayer PCB

I think a good layout design does not need to use the multi-layer PCB.This is my layout!
thank you very much!

quanghao 20th September 2012 08:47 AM

Quote:

Originally Posted by abraxalito (Post 3171842)
So the $64,000 question - does it sound better than the AD1865 or is this just to accommodate customers who want more bits?

It is better technology, and new.

Dac-end) AD1865) close and natural sound quality, it has conquered my system; Ntday today, I want to find new ones, and there are many options such as USB input,

32-bit DAC-potential,
DAC-END is the standard DAC for my system!

thank you!

abraxalito 20th September 2012 08:51 AM

Sounds like a no then - I appreciate your honesty. So you are adopting ESS9018 because its getting harder to obtain AD1865 chips (they're discontinued by ADI AFAIA)?

quanghao 20th September 2012 08:53 AM

Quote:

Originally Posted by abraxalito (Post 3171862)
Sounds like a no then - I appreciate your honesty. So you are adopting ESS9018 because its getting harder to obtain AD1865 chips (they're discontinued by ADI AFAIA)?

yes!
thanks your advance!

Quanghao

quanghao 20th September 2012 09:03 AM

Quote:

Originally Posted by qusp (Post 3171821)
I really think ESS needs multilayer PCB

DAC layout is not a simple job, always need separate DGND and GND.Need to calculate properly, and connecting them together, and the energy supply for the function of the chip!

In terms of the multi-layer PCB is the best choice, but with the existing conditions, 2 layer PCB is easier!

thanks

analog_sa 20th September 2012 09:20 AM

Quote:

Originally Posted by abraxalito (Post 3171842)
So the $64,000 question - does it sound better than the AD1865 or is this just to accommodate customers who want more bits?


I think you already know the answer: it sounds much better but not at 44/16 :)


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