I said
Like my statement says for the purposes of the experimenter the design is spacious and there are clearances to change or add caps and supercaps, there is provision for oscillator rolling and there is provision of connection to external dac stage pcb.
There is easy access to adding and swapping other components including the regulator.....all these qualities combined on an economical prebuilt board is unusual and does count as well laid out for the purposes of the experimenter.
Close inspection will show that for two layer assy the board is electrically quite good with copious earth pours and ample stitching throughout.
For $50.00 or at any price this 'semi-disposable' board is really good sounding and is also a physically ideal starting point for the DAC experimenter.
Your turn now Bill.
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So, if I’m using Toslink or RCA S/PDIF inputs I could simply power it from a USB wall wart?
Thanks Dan, I do appreciate someone actually putting some thought into it!
So the the optical and coax on that unit are outputs?
Of course not. They work to get paid.
Would that be sighted listening?
Quoted for future reference.
We are supposed to believe you?
If I was on a forum like that, I would leave.
Nope this board is a USB data input to analogue audio and Toslink/RCA SPDIF outputs convertor.
Your welcome, and yes the optical and coax connections are spdif outputs so you can use this board to feed your DAC from a PC/Laptop.
The other end of the board is the analog outputs, the RCAs are DC coupled, the ST3.5mm is AC coupled.
So what, on the same note it could be argued that your layout is using efficiently less than 1/2 of the heat sink cooling capacity (the upper half). Rth is decreasing with temperature, so the upper half will get the bulk of the radiated heat, while the lower half will stay much cooler, depending on the airflow (convection) around.
Talking about magnetic effects, did I mention I'm cringing when I see the output inductor on the PCB, radiating straight toward the input stage?
BTW, I am not your competitor, so you can relax
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Unfortunately, it is true.
These days, when I load a page here, usually about a half of it consists of ignored posts.
What surprises me most, is, that many of those posters are over 60 years of age. It would be about time for them to calm down. Didn't the real life teached them anything? How are they getting along with other people?
Best,
Disagreement is interpreted as a rudeness by some members here, though the same members regularly use rude language. It seems that perception of rudeness is very individual. So please let's stop crying and never ending complaining and let's bring something to the subject, but be prepared to different opinions then and to confrontation of ideas. Such is the discussion. Otherwise let's use Instagram or Facebook with likes only and option to delete inconvenient ideas.
They didn't show the numbers with 32-ohm headphones plugged in. Found that somewhere on another website. Looked worse, of course, quite a bit so to my preferences.
Super caps are slow.
They have high ESR for one thing.
But, they can hold a lot of charge and can be recharged faster than a battery, so that is a good area to put them to use.
Supercapacitor Information – Battery University
They are afaik not even specified for AC.
Again, the most critical voltage reference of a DAC needs ultrafast reaction. A super cap is not the answer.
But, yeh, the word 'super'. How can it not be good for audiophile use. "Super Silver Caps", would be even better. See the business opportunity! All that Oppo-mod nonsense seems to be over, so time for something new.
Edit: you asked for my definition of nonsense, but it cannot be defined, only understood; the Oppo thread was mentioned by means of example.
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