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Quanghao Audio Design Quanghao Audio Design is a producer of DIY Audiophile Kits and PCB boards, selected from many listening tests!

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Old 18th August 2015, 02:56 AM   #11
quanghao is offline quanghao  Viet Nam
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Quote:
Originally Posted by baMarek View Post
Hi Quanghao,

1. How do you compare the sound of this DAC with your previous ES9018?
2. What is the voltage on the output?
3. If I use 2 of those DACs in 4 channel config, do I need to connect them with the same clock or it is not necessary with this chip?

DAC24 has a more natural sound DAC Es9018

Because the AD1865 chip, nature available.

And the use of output 6Dj8 Tube, we will get the singer's voice sweet and affectionate than ES9018
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Old 25th August 2015, 12:22 PM   #12
audiodesign is offline audiodesign  Italy
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There are many articles about no oversampling and digital filter-less DAC.

Also this project follow the philosophy of Ryohei Kusunoki.

TNT-Audio inter.views Kusunoki San [English]
NOS DAC

These dac give very natural sound very close to the playback from analog sources.

If we compare this DAC with last generation of DAC like the ES9018 you will immediately feel a more natural sound but some little details may be missing.
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Old 27th August 2015, 05:05 PM   #13
rol is offline rol
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Originally Posted by audiodesign View Post
There are many articles about no oversampling and digital filter-less DAC.

Also this project follow the philosophy of Ryohei Kusunoki.

TNT-Audio inter.views Kusunoki San [English]
NOS DAC

These dac give very natural sound very close to the playback from analog sources.

If we compare this DAC with last generation of DAC like the ES9018 you will immediately feel a more natural sound but some little details may be missing.
Would be much, much better if you could consider making it ready to work Ian's PCM-I2S and Fifo. I have the DAC END24 up and running for 2 months, very happy with it, but adding to ability to work with Fifo will make it a truely high-end system. Also, maybe consider making a parallel/balanced version with dual AD1865 chips?
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Old 31st August 2015, 04:35 AM   #14
quanghao is offline quanghao  Viet Nam
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Originally Posted by rol View Post
Would be much, much better if you could consider making it ready to work Ian's PCM-I2S and Fifo. I have the DAC END24 up and running for 2 months, very happy with it, but adding to ability to work with Fifo will make it a truely high-end system. Also, maybe consider making a parallel/balanced version with dual AD1865 chips?
can you sent your DAC image to see all ?

and what your DAC sound ??

thanks
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Old 11th September 2015, 08:02 AM   #15
audiodesign is offline audiodesign  Italy
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Quote:
Originally Posted by rol View Post
Would be much, much better if you could consider making it ready to work Ian's PCM-I2S and Fifo. I have the DAC END24 up and running for 2 months, very happy with it, but adding to ability to work with Fifo will make it a truely high-end system. Also, maybe consider making a parallel/balanced version with dual AD1865 chips?
It is possible create a balanced version of this DAC and I am surely this configuration can increase the signal to noise ratio but it has not consistent with the philosophy of this DAC which was founded with the idea of ​​creating a very close analog signal using only single ended stages and minimal parts on signal path.
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Old 11th September 2015, 08:10 AM   #16
audiodesign is offline audiodesign  Italy
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New info on the webpage relative to this project

DAC End 24 PCM DAC
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Old 12th September 2015, 06:59 AM   #17
rol is offline rol
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Originally Posted by audiodesign View Post
It is possible create a balanced version of this DAC and I am surely this configuration can increase the signal to noise ratio but it has not consistent with the philosophy of this DAC which was founded with the idea of ​​creating a very close analog signal using only single ended stages and minimal parts on signal path.
Yes, maybe the balanced version is not really necessary, but what about dual version, each for one channel, to increase output current?

Also, the MSB adjustment is another feature worth looking at.

How about the new generation of ultra-low noise regulators from TI and AD? Pretty sure they are all lower noise than the ones used in the DAC END24.

Again, I must say the ability to integrate Ian's stuffs (FIFO, PCM-I2S, clock board) will improve the performance significantly.
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Old 16th September 2015, 10:41 AM   #18
quanghao is offline quanghao  Viet Nam
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Quote:
Originally Posted by rol View Post
Yes, maybe the balanced version is not really necessary, but what about dual version, each for one channel, to increase output current?

Also, the MSB adjustment is another feature worth looking at.

How about the new generation of ultra-low noise regulators from TI and AD? Pretty sure they are all lower noise than the ones used in the DAC END24.

Again, I must say the ability to integrate Ian's stuffs (FIFO, PCM-I2S, clock board) will improve the performance significantly.

Now, DAC 24 have good sound, it is better than DAC -end.

in some systems, dac - 24 have better audio dac 32.

Audio DAC 32 or more and more emotional, when I use the tube ouput,
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Old 16th September 2015, 07:18 PM   #19
audiodesign is offline audiodesign  Italy
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This evening a new listen test ES9018 DAC 32 with Lundahl vs AD1865 DAC 24 with new vacuum stube output stage.

System:
- My amplifier 813 SE with Bartolucci transformers
- Electrostatic loudspeakers Audiostatic ES-240

Analog source as reference:
- cartridge Supex sd900 super
- pre-pre Supex sdt77
- turntable Pink Triangle
- pre-ampl near to Audionote M3

DAC 24 sound more natural than DAC 32 and both my friends prefer it.

Also in my previous test with SONY TA5650 V-FET Amplifier and Saba loudspeakers there was the same result.
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Old 17th September 2015, 01:59 PM   #20
audiodesign is offline audiodesign  Italy
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Here some photos of the test environment
Attached Images
File Type: jpg DSC_0001.JPG (91.1 KB, 206 views)
File Type: jpg DSC_0003.JPG (115.8 KB, 207 views)
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