I bought an ESD strap today,but he who sold it to me said to eart myself on the case that I was working on and not what i belived on a radiator or similar.
Is this the way to do it?
Is this the way to do it?
Indeed, lookie lookie, same cheap enclosure L😉 First listen impression is also very good.
Cled is below the pcb, soldered at the led's pins.
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Changed the dac chip and the regulator and now its working..
Listening from my computer Spdif out from my ASUS card and a discrete buffer after driving the HD650.
I think I want to listen some more before telling..
Will post some pics later.🙂
Diyaudio:
Buffer:
ES9023 in box:
Listening from my computer Spdif out from my ASUS card and a discrete buffer after driving the HD650.
I think I want to listen some more before telling..
Will post some pics later.🙂
Diyaudio:
Buffer:
ES9023 in box:
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would you please tell me type of transformer that you used - seems much high VA than recommended
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thank you for reply
your trafo has higher VA than original recomended - much beter choise
how do you like your build
regards
your trafo has higher VA than original recomended - much beter choise
how do you like your build
regards
Well,I connected it to my stationary computer from the Spdif on my Asus essence one soundcard,and it sounded okay...
Then I connected the DAC to my laptop wich has the Hiface USB to Spdif interface now it started to sound better infact it sounds fine,clear highs and deep bass.
I wonder why the Spdif on my stationary don´t sound so good?
Then I connected the DAC to my laptop wich has the Hiface USB to Spdif interface now it started to sound better infact it sounds fine,clear highs and deep bass.
I wonder why the Spdif on my stationary don´t sound so good?
I use it to drive the headphones,maybe the ES9023 can drive the headphones,I havent tried it...yet. 🙂
Oh I see. I'm trying to understand the difference between an Amp and a Buffer. Is an buffer a type of amp?
Unlike most amp where there is a gain and power portion?
*Thanks for clearing this up for me 😉
Conected the DAC to the "home stereo" to the bass channel (0-1400hz)instead of the AK4396 dac with jensen trafo output.
And the bass is more easy to follow..🙂
And the bass is more easy to follow..🙂
buffers usually have a VOLTAGE gain of 1 or less, but increased current. the primary role of the buffer is usually to ease the loading on the previous stage by providing a very high input impedance, while having low output impedance and more often than not has current gain as well, just no voltage gain
Convince me with a listening test please. This is not an amp that can draw much current. Load is pretty constant in this case. You can use a 120 VA transformer but it won't make a difference.
It is in fashion for quite some years that transformers are largely overdimensioned and also that many people like to convert the too high voltage of the randomly chosen transformer to heat. However it is perfectly possible to use exactly the right transformer for the job. With amps overdimensioning the power transformer makes sense, with DACs I beg to differ.
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Hi Fred, can you explain why you use 2 fuses in series ? 😉
Nice build, how does the power supply perform ?
Well, I have a final version ready (single ended) but Subbu and I had some different opinions and a lack of time so the balanced version is not ready yet.
Changed the dac chip and the regulator and now its working..
Listening from my computer Spdif out from my ASUS card and a discrete buffer after driving the HD650.
I think I want to listen some more before telling..
Will post some pics later.🙂
Diyaudio:
Buffer:
ES9023 in box:
Hi Åke,
Your DAC looks good, nice case ! I would not twist SPDIF wiring though. I have some questions:
- what is the voltage at the second filter cap ? Maybe you could have used :
https://www.elfa.se/elfa3~se_sv/elf...transformator_4.5_va_7.5_vac_(1x),_ei382_1187
- does this power transformer fit exactly (mechanically) ?
Just for my own curiosity...
I see you used an external fuse. No trust in the electrical safety of the power supply ? 🙂
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