En tout cas encore merci
![:) :)](./images/smilies/msp_smile.gif)
qusp a écrit : its just another datasheet implementation with a few cost cutting measures. its better than any of the other cheaper ESS boards so far; i'll give them that.
HIFIDIY a écrit :Thanks you for your attention. I am spokesman from HIFIDIY.
HIFIDIY 9018 DIY Kit Typical Spec:
[Room, 24Bit,192kHz (J-TEST is 48kHz), NONE-ISO S/PDIF Input, Balanced Output]
[Audio Precision SYS-ONE 322 Plus Prism Sound d-Scope Series III, 100k Input]
Dynamic Range :
> 129dB (20Hz - 20kHz, Unweight, -60dBFS)
>131dB (20Hz - 20kHz, A-Weight, -60dBFS)
THD+n:
<0.0007% (20Hz - 80kHz, Unweight, -1dBFS, 1kHz Tone)
< 0.003%(<10Hz - >500kHz, Unweight, -1dBFS, Any Audio Frequency Tone)
Crosstalk :
<-160dB (20HZ)
<-150dB (1KHZ)
<-125dB (20KHZ)
Noise:
<2.1uV (20Hz - 20kHz, A-Weight)
<2.9uV (20Hz - 20kHz, Unweight)
<12.5uV(<10Hz - >500kHz)
Crosstalk Plot:
Actually this test is out of d-Scope Series III measurement range.
Noise:
It is not ES9018 best point but not bad.
THD+n (0.0026% , -1dBFS, 20kHz Tone, <10Hz - >500kHz Bandwidth, No More Filter):
Now ES9018 is best spec DAC all over the world. It is amazing.
J-TEST:
24Bit/48kHz J-Test.
A bit low frequency spectrum leakage and spurious.
Almost no sideband spurious, excellent!
(S/PDIF cable based VanDamme Standard 75 Ohm Plasma Grade, two metres)
HIFIDIY 9018 DIY Kit is good performance-price ratio DIY Kit for every diyer.
We are not best but we are growing better.
Anyway,it is just DIY Kit, we have to consider junior diyer - easy to soldering.
Enjoy.
La ou les "pros" sont vraiment pas content, c'est sur le découplage, et les critiques ont été extremement dures ...tech4me a écrit :I found something interesting on HIFIDIY.net here's the translation:
In the red box, a digital in mode has been designed. you can plug pin your self-made modules which may support:optical,AES,BNC,IIS and so on.
In the pink box, a digital out mode has been designed. You can build your own LPF and I/V with pin plugged.
In the white box, you may change the original clock to atomic clock.
marce a écrit :Considering that this device has a 100MHz clock, the decoupling is non-existent, and considering how critical decoupling is for both optimum operation and EMC compatibility and the fact the ESS device is soldered to the board, the least that could have been done is at least attempt proper decoupling capacitor placement, and populate the caps as these are critical.
"Titans series is revolutionary products of HIFIDIY after many years of accumulation of technology resources reserve"
this is the best design you can get after so many years of experience??
I wonder when will the chinese market offer also some quality despite cheapo prices?
Si j'oublie la moitié des mots c'est normal que tu n'y comprennes rien :Dcharlo89 a écrit : Après tu penses que j'en aurai pour combien juste en composant pour ce DAC avec entré optique/spdif et qu'entends tu par spdif asynchrone. Je connaissais l'usb asynchrone sans savoir réellement ce que c'était.
et du switching mécanique sur de l'i2s ... c'est au moins la Corée du Nord dans l'axe du mal :Dhifiduino a écrit :(Switching between SPDiF and I2S would require mechanical switching as DATA1 is shared between SPDIF and I2S).
Le kit a l'air de presque tout contenir ... tu remarqueras cependant que hifiduino à remplacé les wima caps par des SMD en C0G ... donc ce genre d'upgrade n'est pas inclus :Dcharlo89 a écrit : Après tu penses que j'en aurai pour combien juste en composant pour ce DAC avec entré optique/spdif
Oui je m"attendais a cette remarque;mais c'était pour informe charlo89 qui avait l'air intéresse par de l'Audio GDGourouLubrik a écrit :Oui, mais ça, ça a plutot ça place ............