I am on holiday till Friday .
The dac output stage is taken from the +15V. It generates a 6.1V reference.
The logic section and USB section runs of the 5.5V
The dac output stage is taken from the +15V. It generates a 6.1V reference.
The logic section and USB section runs of the 5.5V
I do not find words to describe the admirable sound of this DAC🙂🙂🙂
i supply it with one Reflector at 6.20V and one Bib +/-14V
Many thanks for all Sonny.
i supply it with one Reflector at 6.20V and one Bib +/-14V
Many thanks for all Sonny.
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Hi Sonny,
Ok, sometimes it happens. Glad you answered here on the forum.
Well, do you hear difference between C0G ceramic and PPS film caps?
I am asking because I plan to do a headphone amp for your wonderful DAC🙂
Eugene
Ok, sometimes it happens. Glad you answered here on the forum.
Well, do you hear difference between C0G ceramic and PPS film caps?
I am asking because I plan to do a headphone amp for your wonderful DAC🙂
Eugene
Likely you do not need to do so... the discrete output stage is able to drive most headphones by itself. All you need is to add proper connectors. 😉
Inviato dal mio GT-I9100 utilizzando Tapatalk
Inviato dal mio GT-I9100 utilizzando Tapatalk
That's cool, but I ordered DAC with ADA4898-1 shield instead of discrete solution. Also it will be convenient to have gain swith for different headphones and analog volume control as well. Hence I am designing a headamp PCB which will be sit next to Sonny's DAC🙂
Eugene
Eugene
Hi Sonny
Is there any pdf file describing the work of the front panel along with dac .
How much power consumption together (ma)?
Grazie,
Vio
Is there any pdf file describing the work of the front panel along with dac .
How much power consumption together (ma)?
Grazie,
Vio
Hi Sonnya,
No news about the new version LPS?
Unfortunately, I can not finish the project 🙁
BR
I work a lot on PCB designs at the moment. Just ask bavmike.
Tomorrow when i have spoken with the PCB manufacture i can tell more.
It uses larger heatsinks now. PCB has ventilation holes around the heatsinks.
The +5.5V which generated a low of heat is made up of an LM2674M simple switcher with fixed frequency so the noise from it is very low. On top of that it is followed by a low noise voltage regulator from TI. TPS7A4700. So the +5.5V is very low noise as well and heat is lower.
Tomorrow when i have spoken with the PCB manufacture i can tell more.
It uses larger heatsinks now. PCB has ventilation holes around the heatsinks.
The +5.5V which generated a low of heat is made up of an LM2674M simple switcher with fixed frequency so the noise from it is very low. On top of that it is followed by a low noise voltage regulator from TI. TPS7A4700. So the +5.5V is very low noise as well and heat is lower.
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Hi Sonnya,
Is this version of the frontpanel capable to send sw commands to any AK4490 dac?
At least volume control and filter settings change ...
Is this version of the frontpanel capable to send sw commands to any AK4490 dac?
At least volume control and filter settings change ...
I'm selling my dac/pre amp. Anyone interested please send me a PM.
http://www.diyaudio.com/forums/vendors-bazaar/274456-ak4490-usb-dac-dsd-support-86.html#post4612305
http://www.diyaudio.com/forums/vendors-bazaar/274456-ak4490-usb-dac-dsd-support-86.html#post4612305
Now the LPS is ready and we have build 10 of them so that we can ship them out Wednesday
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No, it was late yesterday working on getting audio stuff ready to go out
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Sent from my iPhone using Tapatalk
I have similar question about 1 months ago and so far no response from Sonny.
Quite frustrating actually. It seems to use this DAC to its full potential, we will need to buy the full package of pre-amp, front panel, chassis etc.
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