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Audio-GD NFB-11.28 "Performance Edition"

THW

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#2
based on what I’ve seen you probably should take Audio-GD’s given measurements with a grain of salt, there have been cases where the measurements here are completely off compared to the measurements Audio-GD puts out.
 

Veri

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#3
Indeed these measurements aren't new, they've been doing them for a while but for previous non-'performance' versions the AGD graphs far from matched Amir's which seems highly misleading. Example here https://www.audiosciencereview.com/...audio-gd-nfb28-28-dac-and-headphone-amp.5147/ the audio-gd measurement shows orders of magnitude lower distortion.

...theirs shows far less harmonic distortion. My guess is that this is the performance of the DAC subsystem sans the output stage. And it is the output stage that is adding the copious amount of distortion.

So as an all-in-one system you are not getting the performance that is projected whatsoever. Now that something like the affordable Topping DX3 exists, audio-gd is overpriced crap more than ever I'm afraid.
 

THW

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#4
So as an all-in-one system you are not getting the performance that is projected whatsoever. Now that something like the affordable Topping DX3 exists, audio-gd is overpriced crap more than ever I'm afraid.
For the DX3 Pro it might be prudent to note that some have reported QC issues, however I haven’t really put in the time and effort to see if said reported issues are actually the result of manufacturing inaccuracies and inconsistencies or is really just a case of user error. It could even just be the case of sampling error being amplified due to the DX3 Pro being a highly anticipated product.

That being said my particular DX3 Pro unit works beautifully and has been reliable so make of that what you will.
 

THW

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#6
Thanks.

However despite the potential QC and reliability issues, it should also be noted that when it works, it works very well and so far has proven to be an excellent solution for all of my audio needs as far as I’m concerned.

It has more than enough clean power for my HD 600 by itself and even if I do somehow need more power, I could always just order an Atom and use the DX3 as a DAC anyway.
 
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#7
I'm more of a fan of separates personally. I wasn't aware Audio-GD has shown other measurements. I guess we'll see!
 
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