Audio-GD NFB-2 & NFB-3 Delivery & Impression Thread

[Currawong]

You don't need to spend 100 euros for cables. The LCD-2 cable just needs the plug changed to a 4-pin XLR. It takes someone handy with a soldering iron about 5 minutes.

 

[Cya|\|]

Quote:

You don't need to spend 100 euros for cables. The LCD-2 cable just needs the plug changed to a 4-pin XLR. It takes someone handy with a soldering iron about 5 minutes.

Oh thx. In case I'll buy the nfb-10 in the future, then I'll definitly try to make them balanced myself.

 

[OPrwtos]

guys, ive also said this on nfb-10 post but no answer; is the filter in the nfb-10wm  set to 8x oversampling? 
thx

 

[HaVoC-28]

 
Quote:

guys, ive also said this on nfb-10 post but no answer; is the filter in the nfb-10wm  set to 8x oversampling? 
thx

Hello again if you look at the NFB-2 page wich also use dual WM8741 , for using 192khz , samplerate files oversampling is Set to 2X (can't more.  (http://www.audio-gd.com/Pro/dac/NFB-2/NFB2EN.htm)
 
So i guess that NFB-10 is using 2x Oversampling . 
 
Yesterday i cheacked inside my NFB-2 for simple curiosity and give a quick try in changing filters .
 
Defaut digital filter for NFB-2 is :
 
2X oversampling , Linear phase 'brickwall' filter.
Up to 192KHz support.
 
Currently using :   
 
4X oversampling , Linear phase 'brickwall' filter.
Up to 96KHz support.
 
(DIR9001 spdif receiver chip , soo 96khz is enough)
 
tryed too :
 
4X oversampling , Minimum phase 'soft-knee' filter.
Up to 96KHz support.
 
(i didn't like it , high seams rolled off a bit ... and sound less energic .)
 
It was just a quick try , but defaut settings , are fine with 2x oversampling .
 
 
Soo for the NFB-10 WM digital filters should be the same (2x oversampling as defaut) to allow 192khz files .
 
But again i can be wrong
 
 

 

[OPrwtos]

hey buddy havoc
thats ashame i wanted 8x!
did u try the 8x filter?
so atm u think 2x oversampling sounds better than 4x?

 

[HaVoC-28]

well currently i am using 4x Oversampling But honnestly beetween 2x oversampling and 4x oversampling using  Linear phase 'brickwall' filter
 
i barrely heard a difference in the sound ... the time to put the selectors back , cables etc ... too long
 
I should have 2 NFB-2 to make a real comparaison , peraphs it was just placebo : /
 
but between different filters like :  Minimum phase 'soft-knee' filter ,  Linear phase 'soft-knee' filter. etc , it was obvious ... 
 
and i didn't try 8x filter : /  (not soo many time) , and i am not very aware about "oversamling , if it's good or bad )
 
 
 
 
 
 
 

 

[OPrwtos]

ah ok,
so linear sounds better than minimum? 

 

[HaVoC-28]

For me yes ^^ without a doubt it was clear ... , . i only stayed 30 min trying it . 
 
Next time will try 8x and  put my NFB-2 in a place where i can easely change the selectors ...(when i will have some time)
 

 

[OPrwtos]

hehe ok, thx for ur answer 

 

[HaVoC-28]

something else is bothering me more than not hearing difference beetwen oversampling 
 
ATM I don't hear any difference beetween feading my NFB-2 , throught SPDIF , coax with my motherboard , and usb input of my NFB-2 ... but using Optical it's Obviously worse , optical is less detailled , less energic , etc ... 
 
Some days ago a friend borrowed me a auzen Forte to try it as spdif transport (coax) , well difference was barrely noticeable peraphs electric guitars had a little more budie , and general sound was a bit colder ... 
 
Monday i will  manage to get a EMU 404 PCI-E from another friend .
 
Peraphs it's my coax cable a simple "belkin pure AV" serie , something like 12 € ...
 
there is some track where i barrely notice some differences but very hard to me to tell if it's USB or SPDIF coax

 

[OPrwtos]

hm im not sure, maybe people that had experience with different cables can answer that

 

[HaVoC-28]

y a will wait for some advices , tomorow EMU 404 should give a initial response

 

[OPrwtos]

 

[cynan]

Quote:

guys, ive also said this on nfb-10 post but no answer; is the filter in the nfb-10wm  set to 8x oversampling? 
thx

Recently placed an order for a NFB-10WM and this is what I was told from Audio-gd:
 
"The NFB10WM have oversampling choice between 2X, 4X, and 8X. The setting specs diagram is like the 3th, 6th, 9th of the NFB-3 digital filter. http://www.audio-gd.com/Pro/dac/NFB-2/NFB2EN.htm"
 
Not sure what is meant by "oversampling choice"? Does that mean various levels of oversampling is user selectable?
 
As for the other part, this indicates to me that Kingwa has chosen the "Brickwalll" internal oversampling filter as default for the NFB-10WM, instead of the "Soft-knee" or "Apodizing". This to me suggests that he is going with the filter that leaves the most detail in the DAC output signal. Does this sound about right?

 

[OPrwtos]

hm you set he chose brickwall filter, i think at 2x at havoc mentioned above so it can take in 192khz.
but yeh, u shouldve asked him if the user selects the oversampling rates with jumpers like in nfb-3.