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> An USB ESS sabre DAC, Simply a performer. (Hi-Fi)

chchyong89
post Aug 1 2012, 11:42 PM


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Finally, a much higher end DAC released, with much lower price and much smaller size! Have no time to post the detail of it until today due to busy working hours. The design goals were built by optimizing the layout to maximize the performance of the DAC while maintaining tiniest possible size.

The selling price was squeezed to lowest possible by introducing lowest possible parts count of SMDs and avoided the use of unnecessary expensive and meaningless electrolytic capacitors, either in signal or power paths. With the integration of negative charge pump in the DAC, there are no capacitors throughout the signal paths that will colorize the sound characteristics to retain purest possible audio signals transmission. Throw away the need of high or low frequency filtering stage on signals path ensuring full signals transmitting. Shortest signals travelling, reducing EMI throughout the DAC. And finally, introducing with direct connectivity to your USB slot without additional USB cable greatly reduced the messiness of cables on your tables.

The premium point is that the DAC is using ESS sabre ES9023, which can outperform most of the commercial DACs at a certain value. My words on this product is, don't judge the performance of this DAC base on the size and the selling price that will biasing your final conclusions. laugh.gif


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I have named this as UD100 as the first product under my newly registered trading company. And I have added a logo on my PCB to protect myself from the same incident happen again.

A simple review from my friend, click

This post has been edited by chchyong89: Aug 2 2012, 07:44 AM
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ClieOS
post Aug 2 2012, 02:22 AM


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Wow, what a simple design. Never know you can directly mount ES9023 onto USB.
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Quazacolt
post Aug 2 2012, 02:31 AM


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questions!

- what incident?

- possible for adding a sealed tight cover(water/dust proof etc)? maybe acrylic too if you wanna maintain it to be able to "show off" the internals?

- for those who don't need portability/size requirement, would you have a "desktop version" that comes equipped with much higher current feed? (eg: power adapters/sockets from direct power source of wall socket etc)
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chchyong89
post Aug 2 2012, 07:06 AM


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QUOTE(ClieOS @ Aug 2 2012, 02:22 AM)
Wow, what a simple design. Never know you can directly mount ES9023 onto USB.
*
double surface mounting. USB receiver is on the back side. laugh.gif


QUOTE(Quazacolt @ Aug 2 2012, 02:31 AM)
questions!

- what incident?

- possible for adding a sealed tight cover(water/dust proof etc)? maybe acrylic too if you wanna maintain it to be able to "show off" the internals?

- for those who don't need portability/size requirement, would you have a "desktop version" that comes equipped with much higher current feed? (eg: power adapters/sockets from direct power source of wall socket etc)
*
-the old kakis on this forum know this wub.gif

-molding a case will increase the selling price a lot.

-There will no desktop size DAC until 2015 in the planned road map. By the way, you don't need large current output unless you are using it to drive your headphone directly, or you are connecting to a super low input impedance amplifier. blush.gif

This post has been edited by chchyong89: Aug 2 2012, 07:19 AM
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ClieOS
post Aug 2 2012, 10:49 AM


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QUOTE(chchyong89 @ Aug 2 2012, 07:06 AM)
double surface mounting. USB receiver is on the back side.  laugh.gif
Ah, that makes much more sense. For a moment there I thought you put some magic into it laugh.gif
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power911
post Aug 2 2012, 10:54 AM


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sounds tempting!

how low is low?

This post has been edited by power911: Aug 2 2012, 10:57 AM
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kenjixx
post Aug 2 2012, 10:59 AM


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looks like something that is within reachable for amature user
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TOROBO
post Aug 2 2012, 11:34 AM


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can it be designed so that it will not disturb other USB ports?
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Quazacolt
post Aug 2 2012, 02:08 PM


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QUOTE(chchyong89 @ Aug 2 2012, 07:06 AM)
-the old kakis on this forum know this wub.gif

-molding a case will increase the selling price a lot.

-There will no desktop size DAC until 2015 in the planned road map. By the way, you don't need large current output unless you are using it to drive your headphone directly, or you are connecting to a super low input impedance amplifier.  blush.gif
*
- im not old kaki, please elaborate laugh.gif

- well it can be an option to some, do put some consideration smile.gif

- i kiasu, want big current, big everything. rolleyes.gif
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Bonta-Kun
post Aug 2 2012, 03:30 PM


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QUOTE(Quazacolt @ Aug 2 2012, 02:08 PM)
- im not old kaki, please elaborate laugh.gif

- well it can be an option to some, do put some consideration smile.gif

- i kiasu, want big current, big everything.  rolleyes.gif
*
WM8501 incident lol? you might need to dig up the old bro chchyong's thread blush.gif
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Quazacolt
post Aug 2 2012, 03:35 PM


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QUOTE(Bonta-Kun @ Aug 2 2012, 03:30 PM)
WM8501 incident lol? you might need to dig up the old bro chchyong's thread  blush.gif
*
thanks! will do
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chchyong89
post Aug 2 2012, 07:39 PM


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QUOTE(power911 @ Aug 2 2012, 10:54 AM)
sounds tempting!

how low is low?
*
Very low brows.gif



QUOTE(kenjixx @ Aug 2 2012, 10:59 AM)
looks like something that is within reachable for amature user
*
you will change your opinion after you audit it. tongue.gif



QUOTE(TOROBO @ Aug 2 2012, 11:34 AM)
can it be designed so that it will not disturb other USB ports?
*
At left USB mounting, the jack is facing to front, while on the right side, the jack will facing backwards, I think this is good enough for arranging cables on the table laugh.gif


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Quazacolt
post Aug 2 2012, 07:44 PM


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dug up some old bones, surprising to see even my rl friend posted in that thread heh.
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noobandroid
post Aug 2 2012, 07:46 PM


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perhaps a loaner program will convince people much more, currently i have 3 dac sets with me, hoho if this can test then i have 4 for a elaborative test, haha
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chchyong89
post Aug 2 2012, 07:51 PM


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QUOTE(noobandroid @ Aug 2 2012, 07:46 PM)
perhaps a loaner program will convince people much more, currently i have 3 dac sets with me, hoho if this can test then i have 4 for a elaborative test, haha
*
Its good to hear that you have 3 DACs ready at the moment to carry out comparisons! Let me know if you can drop by at pj after 830pm, I can borrow you a sample. biggrin.gif

This post has been edited by chchyong89: Aug 2 2012, 07:51 PM
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noobandroid
post Aug 2 2012, 07:53 PM


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QUOTE(chchyong89 @ Aug 2 2012, 07:51 PM)
Its good to hear that you have 3 DACs ready at the moment to carry out comparisons! Let me know if you can drop by at pj after 830pm, I can borrow you a sample. biggrin.gif
*
sad sad, not at semenanjung sad.gif well at least try to find couple top rank audiophiles in LYN to test
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Quazacolt
post Aug 2 2012, 08:00 PM


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QUOTE(chchyong89 @ Aug 2 2012, 07:51 PM)
Its good to hear that you have 3 DACs ready at the moment to carry out comparisons! Let me know if you can drop by at pj after 830pm, I can borrow you a sample. biggrin.gif
*
PJ where? would like to audition it myself so i can save myself a lot of time on switching configs for my speakers/headphones tongue.gif

=edit=
hell, do consider joining the AT gathering tongue.gif
more people can audition, more exposure.

also do consider my earlier requests too lol

This post has been edited by Quazacolt: Aug 2 2012, 08:00 PM
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Bonta-Kun
post Aug 2 2012, 08:29 PM


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If you guys search around, you might find a review for this DAC up a couple weeks ago biggrin.gif
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LittleGhost
post Aug 2 2012, 09:39 PM


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QUOTE(Quazacolt @ Aug 2 2012, 02:08 PM)
- im not old kaki, please elaborate laugh.gif

- well it can be an option to some, do put some consideration smile.gif

- i kiasu, want big current, big everything.  rolleyes.gif
*
no real reason to have big currents for your DAC output.

I'm very lazy to type this now. Perhaps I'll elaborate tomorrow on the technical details of this DAC chip, and why it is better to have it confined rather than add needless "upgrades" which defeats the purpose of this DAC.



This is good stuff. At least trust me on this one. Bug me so I can type it out if any of you are interested.
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Quazacolt
post Aug 2 2012, 09:55 PM


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QUOTE(LittleGhost @ Aug 2 2012, 09:39 PM)
no real reason to have big currents for your DAC output.

I'm very lazy to type this now. Perhaps I'll elaborate tomorrow on the technical details of this DAC chip, and why it is better to have it confined rather than add needless "upgrades" which defeats the purpose of this DAC.
This is good stuff. At least trust me on this one. Bug me so I can type it out if any of you are interested.
*
from my perspective, if the upgrade over my existing setup is insignificant, i dont see a point in spending an extra cent.

in other words, i am using DACport (or more specifically LX ver without the internal amp) as a benchmark, as it is very heavily priced, however it isnt that much better than my creative sound card running on ASIO. at least, it isnt good enough for me to splurge 1k for it is what i'm trying to say.

so having something so small, without having all the fancy capacitors and whatever engineering marvels that we might see in a higher ranged DAC, that also usually sports a dedicated power supply/source requirement too, just have a lot to prove for itself. (which i also request for an audition naturally)

lastly not having cover, for something that i will probably never move at all plugging in my pc's back ports, which the pc is sitting on the floor level, is just asking for lots of dust or dirt to accumulate. over time, this could potentially have static damage or have further accelerated oxidization on the unit itself. i'm sure this could at least be a valid concern and a good suggestion to be put into consideration, no?
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