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Asus Essence One Headphone Amp/DAC (CeBIT 2011) - Page 6

post #76 of 3016


 

Quote:

Originally Posted by leeperry View Post

Asus first showed the STX being called "StereoX" back then at a trade show:

give it some time.



When is "back then"?

It's not clear from your post.

Not flaming, just curious.

post #77 of 3016

Hi guys, 

looks good for the price based on yesterdays standards. But single dac chip :/ I think i'd go for the teac ud-h01 which will be available sooner, has better specs and probably its at the same price range. Although my first choice is onkyo dac-1000 

post #78 of 3016

http://pressoffice.mg.co.za/asus/PressRelease.php?StoryID=221382

 

Thought I would share this, not sure how much of this is new information but it certainly caught my eye, as I am looking for a USB DAC when the wallet allows.

 

 

post #79 of 3016
There are nice pictures too, the finish is not too shabby:

500
500
500

And they are including an
Quote:
Audio Precision (AP) test report *1
with the package, I hope it's somewhat complete.
post #80 of 3016

Hi guys! 

 

Just an info. This product has been announced in my home (Hungary, Europe), too. Currently no info on price, but ASUS said it will be available shortly, and even give some preview units to a few computer websites.

 

So, anyways, I'm sure it will be available in the US, and other countries soon.

Here's the source (of course its in hungarian :) ).


Edited by hidefjunkie - 8/13/11 at 5:13am
post #81 of 3016
Quote:
Originally Posted by khaos974 View Post

You would be looking into possibly 6 dB variation in the frequency range low impedance headphones, for example, the sound signature of a balanced armature with a nominal impedance of 16 ohms (which actually means its impedance could range between 6 and 40 ohms) would be wildly changed.



I would liketo point out that the card was never designed to drive phones less than 32 ohms impedance. The variations of such a phone would likely be less than 2-3 db which though audible is not a huge deal. Even with 16 ohm phone it is not likely to see 6 db variation, more like about 4-5db variation at worst. This actually works out to an advantage with most single driver IEM's as they tend to perform better with a higher source impedance anyway.

 

Such resistors in the output of headphone amps are actually common place & most headphones are not all that sensitive to this impedance. Many receivers have much higher ouput impedance than the essense does, typically more than 450ohms! Even so they can still sound good with most phones. The resistor is there to protect against short circiuts.

 

post #82 of 3016

Originally Posted by Tablix View Post

http://pressoffice.mg.co.za/asus/PressRelease.php?StoryID=221382

 

Thought I would share this, not sure how much of this is new information but it certainly caught my eye, as I am looking for a USB DAC when the wallet allows.

 

"11 operational amplifier (op-amp) design for distinct tonal customisation."

 

11 opamps in the signal path? [:yiipaa:3]

post #83 of 3016
But it is possible to design a near zero impedance headphone out, Meie Audio, Violectric, Benchmark all do it without endangering your headphones.


By the way, the press release states:
Quote:
Headphone amplifier

The Xonar Essence One integrates an audiophile-class headphone AMP circuit which powers up all Hi-Fi headphones, enabling 100% performance even with impedance of sets up to 600ohms. It offers extra dynamics, sound details and low distortion for the absolute best sound quality possible.

No mention of lower impedance limit.
Quote:
Originally Posted by leeperry View Post

"11 operational amplifier (op-amp) design for distinct tonal customisation."

11 opamps in the signal path? [:yiipaa:3]


No, apparently you can swap opamp and it happens they tested 11 different ones.
Edited by khaos974 - 8/14/11 at 6:26am
post #84 of 3016

(1)

This doesn't doesn't do more than 2ch analogue-out right.

Would it be possible to mod it to do more?

I guess it'd be far too tricky, & not worth one's time/effort.

 

(2)

No digital-out either right?

 

Two must-have's for me unfortunately.

I guess I'll have to stick with my ST.

I was hoping for a nice upgrade to the ST.

 

Anyone know if there's discrete cards planned, that improve on the ST/X?


Edited by jalyst - 8/16/11 at 11:28pm
post #85 of 3016

interesting...but since i have a STX, i probably wont need this :P. Plus if i were to find a external DAC, i'd find another one but i'm interested in how much they are going to be selling. :P

post #86 of 3016

1) Nope

 

2) Why would you want a digital out? No DAC that I know of has one. You need to FEED this thing with a digital input so why should it pass that signal out .. and to what? another dac? pointless
 

Quote:
Originally Posted by jalyst View Post

(1)

This doesn't doesn't do more than 2ch analogue-out right.

Would it be possible to mod it to do more?

I guess it'd be far too tricky, & not worth one's time/effort.

 

(2)

No digital-out either right?

 

Two must-have's for me unfortunately.

I guess I'll have to stick with my ST.

I was hoping for a nice upgrade to the ST.

 

Anyone know if there's discrete cards planned, that improve on the ST/X?



 

post #87 of 3016

 

Quote:
Originally Posted by leeperry View Post

 

"11 operational amplifier (op-amp) design for distinct tonal customisation."

 

11 opamps in the signal path? [:yiipaa:3]


I laughed, too!

 

 

 

Quote:
Originally Posted by Bojamijams View Post

1) Nope

 

2) Why would you want a digital out? No DAC that I know of has one. You need to FEED this thing with a digital input so why should it pass that signal out .. and to what? another dac? pointless


There are DACs with digital output if you search, I've come across a handful.  What is it for?  I don't know, not my interest.

 


Edited by Mad Max - 8/17/11 at 10:48am
post #88 of 3016

Originally Posted by Mad Max View Post

There are DACs with digital output if you search, I've come across a handful.  What is it for?  I don't know, not my interest.


The most ideal scenario of them all is to output a word clock to your transport to enslave it, so the DAC doesn't have to run in slave mode from the S/PDIF|AES/EBU recovered clock but the transport does, and off a clean clock. The m2tech EVO supports this...and so do some of those antilope DAC's I think.


Edited by leeperry - 8/17/11 at 12:06pm
post #89 of 3016

More information perhaps: http://www.asus.com/News/uKyKEy072stXi6VP/


Edited by TheGomdoRi - 8/17/11 at 1:07pm
post #90 of 3016


 

Quote:
Originally Posted by TheGomdoRi View Post

More information perhaps: http://www.asus.com/News/uKyKEy072stXi6VP/


11 opamps in the signal path?  [:yiipaa:3]

 

I think they need to revise their diction elaborate there.


Edited by Mad Max - 8/17/11 at 1:28pm
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