Review and Measurements of Audio-gd NFB2 192 DAC

[SIY]

Could be; you might be thinking of Otala, whose work was pretty soundly beaten up by Bob Cordell and a few others. Earliest I'm aware of was stuff from Hiraga, which pre-dated Otala.

Whenever there's something really, really stupid in the high end audio niche, it seems to nearly always eventually lead back to Hiraga.

 

[Krunok]

Could be; you might be thinking of Otala, whose work was pretty soundly beaten up by Bob Cordell and a few others. Earliest I'm aware of was stuff from Hiraga, which pre-dated Otala.

Whenever there's something really, really stupid in the high end audio niche, it seems to nearly always eventually lead back to Hiraga.

Wow, you really are a walking encyclopedia! If you ever come to Croatia pls shoot me a message and I will take care of food&wine so I can learn a few more things from you in a more relaxed environment.

 

[SIY]

My wife has a less flattering term for it. Something about a garbage pile for a brain.

I've been promising myself another trip to Eastern and Central Europe (I used to go regularly when I was in the wine biz, but haven't been back in ten years), so you might come to regret the invite.

 

[Krunok]

My wife has a less flattering term for it. Something about a garbage pile for a brain.

Let the first unmarried man without similar experience cast a stone..

I've been promising myself another trip to Eastern and Central Europe (I used to go regularly when I was in the wine biz, but haven't been back in ten years), so you might come to regret the invite.

Not so long ago I was #9 at the Croatian Vivino app wine lovers so no worries, come whenever you can.

 

[Calexico]

You said it all. You simply don't know what "design" means.

The difference between Topping and Audio-GD is called: Engineering.

One is bad designed with lot of components. The other properly engineered with few.

One just do like the datasheet without any creativity and sell it expensive because of pointless specs.
The other try other things and has a more freedom approach.

 

[Calexico]

The paradox is that no feedback dacs have negative feedbacks from reviewers.
And negative feedback dacs have positive feedbacks from reviewers.
Where is the logic?

 

[Veri]

The paradox is that no feedback dacs have negative feedbacks from reviewers.
And negative feedback dacs have positive feedbacks from reviewers.
Where is the logic?

Not sure that's how you intended it but agree with what you say, feedback dacs have positive reviews, no feedback dacs have negative reviews.

Where is the logic?

You're getting there.

 

[Krunok]

You're getting there.

Nope, he's not. At least not that I can see it.

 

[VintageFlanker]

One just do like the datasheet without any creativity and sell it expensive because of pointless specs.
The other try other things and has a more freedom approach.

I don't know what to say... Creativity vs pointless specs... you probably got it right. @amirm, would you please add measurements for creativity and freedom in your next Audio-GD review? We are all fed up with pointless specs. Thanks.

 

[FireLion]

@amirm I see Audio-gd has revised it's range with high performance versions and including test results on the products specs page now.
http://www.audio-gd.com/Pro/Headphoneamp/N11.28PE/NFB1128PEN_Specs.htm

 

[amirm]

@amirm I see Audio-gd has revised it's range with high performance versions and including test results on the products specs page now.
http://www.audio-gd.com/Pro/Headphoneamp/N11.28PE/NFB1128PEN_Specs.htm

They often have such measurements. Problem is that I have not been able to get same results. If they have something that measures well, they should be motivated to send me one.

 

[FireLion]

They often have such measurements. Problem is that I have not been able to get same results. If they have something that measures well, they should be motivated to send me one.

There is definitely some color on my NFB.11 but I only noticed after listening to cleaner amps.

 

[Calexico]

Colorless dacs are like sterilized milk cheese.
No bacteria and boring.

 

[Wombat]

Colorless dacs are like sterilized milk cheese.
No bacteria and boring.

Colorless dacs are like sterilized milk cheese.
No bacteria and boring.

A prime example of a meaningless analogy.

 

[Calexico]

Whatever i say is meaningless here so what's new

 

[Manbeard]

Then maybe you should stop posting nonsense, have an open mind and read some of the excellent information that's on this site.

 

[Calexico]

Or you should consider what i say.
It's total nonsense to think systematically that what is felt is wrong if not shown on measurements.

 

[LTig]

This is very interesting. Thanks for the additional detail!
I didn't know there were different stages that have negative feedback in the dac. I have to confess I can't quite get the full picture because there is a lot of things you mentioned I don't know about (like global versus local negative feedback, a gain of 1, simple emitter follower, or the various amplifying stages present in a dac. If you or anybody wishes to talk about or link to that, I would appreciate it. Thanks

Currently I'm very busy preparing a 66 page booklet for the alpine club but I try to explain more when the job is done.

What is your background in math, physics and electronics?

A very good read is Horowitz/Hill The Art of Electronic. I have the 2nd edition (hard cover). I could imagine buying the new 3rd edition and selling you my 2nd one.

 

[amirm]

Or you should consider what i say.
It's total nonsense to think systematically that what is felt is wrong if not shown on measurements.

Your feelings are detached from what your ears are sensing. In that regard, your comments belong to some other forum not focused on audio science.

 

[Wombat]

Or you should consider what i say.
It's total nonsense to think systematically that what is felt is wrong if not shown on measurements.

I think that your seemingly endless posting of opinions has been generously considered and found wanting - thus you are still trying to credibly explain your views.