I have no idea, it's been knocking around in my parts bin for many years. But then again everything is made in China, especially electronics.
On Mouser, the country of origin is written on each parts bag - COO (country of origin) - for example
WIMA capacitors is COO - DE (Germany)
LDOs - are Texas USA
Mill-Max IC Sockets are USA
Etc....
Almost everything from the Miro BOM is not from China... I don't have a single part on the PCB from China.
I know the opinion from one person about difference of the sound these two. I can't to compare myself.
I know this man a few years. I also was buyed Amonero from him. His opinion maybe not pro but it has be.
Here - https://zvukomaniya.ru/ad797sq/ (but you need to translate on your language).
So we put the same silicon die in a ceramic package instead of plastic.
And WOW, it totally transforms the sound !!!
Then it must be even more sublime to put this same die in a metal-sealed military package.
At least this can get rid of the few mW of heat much better than cerdip.
And of course it has been aged for decades in some industrial equipment, just like good French wine.
I still have 8x OPA627BM (yes, B grade on top of metal case).
Need to go and check immediately how much they are worth now.
Patrick
And WOW, it totally transforms the sound !!!
Then it must be even more sublime to put this same die in a metal-sealed military package.
At least this can get rid of the few mW of heat much better than cerdip.
And of course it has been aged for decades in some industrial equipment, just like good French wine.
I still have 8x OPA627BM (yes, B grade on top of metal case).
Need to go and check immediately how much they are worth now.
Patrick
It's not about the sound...It's about the working life of something. I bought a transistor in a local store - a Chinese fake - it dies very quickly under load. It's not how part sound, but how long part lasts. And I don't want to finance communist countries in principle...
Luckily I'm not from there. Although there are Russians/Ukrainians here at my place everywhere. Refugees. And they are welcome here to come and stay forever. It's like I'm in the middle of Moscow. Mouser can be ordered here - but the price is a little higher.Well, OPA627BM from DK / Mouser cannot be classified as communist, right ?
But of course if you are in Russia, you probably cannot buy from Mouser / DK these days.
Patrick
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Yes, it's seems like unbelievable.So we put the same silicon die in a ceramic package instead of plastic.
And WOW, it totally transforms the sound !!!
Then it must be even more sublime to put this same die in a metal-sealed military package.
At least this can get rid of the few mW of heat much better than cerdip.
And of course it has been aged for decades in some industrial equipment, just like good French wine.
View attachment 1072834
I still have 8x OPA627BM (yes, B grade on top of metal case).
Need to go and check immediately how much they are worth now.
Patrick
I lived in the country only 6 full years but I was born and raised in another)
I have no idea what i am . My grandmother is Russian - my grandfather is Croatian - my mother is Montenegrin, etc.And I live in Belgrade.
My all family from USSR, many years later we lived on Ukraine - Donetsk (after the collapse USSR) and after you know.
Not yet. The positive LDO from the USA will arrive on Monday. Then I try the power supply first and measure the voltage - and try it under a test load. Then I will connect to the DAC PCB - and measure the voltages on them and put the expensive PCM63P-Y on end
All wiring is Van den Hul D102 MK III Hybrid - central wires - with carbon fibers - and a graphene cover that repels all interference.
Op-amps
