DAC-END R (ES9018) - diyAudio
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Old 19th September 2012, 09:59 AM   #1
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Default DAC-END 32 bit

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!
Attached Images
File Type: jpg 1.jpg (241.7 KB, 2556 views)
File Type: jpg 2.jpg (237.0 KB, 2358 views)
File Type: jpg 3.jpg (220.2 KB, 2257 views)
File Type: jpg 4.jpg (210.1 KB, 2176 views)
File Type: jpg 5.jpg (213.9 KB, 2140 views)
File Type: jpg 6.jpg (184.1 KB, 636 views)
File Type: jpg my systum.jpg (228.3 KB, 531 views)
File Type: jpg R-IV.jpg (332.8 KB, 657 views)
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update 06/14/2013 :http://www.audiodesignguide.com/DAC32/index2.html

Last edited by quanghao; 19th September 2012 at 01:26 PM.
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Old 19th September 2012, 10:24 AM   #2
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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.
Attached Images
File Type: jpg Quang-Hao-Andrea.jpg (139.7 KB, 983 views)
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Old 20th September 2012, 08:05 AM   #3
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I really think ESS needs multilayer PCB
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Old 20th September 2012, 08:20 AM   #4
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Quote:
Originally Posted by quanghao View Post
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?
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Old 20th September 2012, 08:43 AM   #5
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Quote:
Originally Posted by qusp View Post
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!
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File Type: jpg es9018-v7.jpg (259.5 KB, 926 views)
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Old 20th September 2012, 08:47 AM   #6
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Quote:
Originally Posted by abraxalito View Post
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!
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Old 20th September 2012, 08:51 AM   #7
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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)?
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Old 20th September 2012, 08:53 AM   #8
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Quote:
Originally Posted by abraxalito View Post
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
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Old 20th September 2012, 09:03 AM   #9
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Quote:
Originally Posted by qusp View Post
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
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Old 20th September 2012, 09:20 AM   #10
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Quote:
Originally Posted by abraxalito View Post
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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