I have to explain why I hope Cosmos APU will be popular as PCBA, due to each PCBA needing to be adjusted before assembling in the housing, I can't order adj+assembling. The adjustment is quite delicate, the trim pots are sensitive to vibration. If I detect that a fully assembled Cosmos APU has unacceptable deviations, I'll need to disassemble that, readjust, and assemble it again. As the result, I have to adjust, the next assemble Cosmos APU by myself. That's why so big price difference PCBA vs assembled unit. Maybe a good idea to offer unadjusted PCBA + housing set for the price between PCBA and a fully assembled unit.
To be honest, Cosmos APU PCBA has a bottom layer entirely GND and almost doesn't need to be shielded. In the worst environment case(some tesla charging underground garage) you can use so-called Creative Beer Can Craft Idea
could you please try VPN? Somebody in our discord channel mentioned that issue for Germany. Also, you can ask Sunny by email about Paypal.
I asked Sunny again about that, she thinks maybe switching Aliexpress to ENG interface language may help?
Sunny just checked the list of our buyers last month, there are Japanese, Italian, USA, Korean, Russian, UK seems Germans really has some issue with Aliexpress in general or with only the particular shop. Strange, maybe capslock input regarding unresolved electric safety EU regulation is correct but how the government may hide the particular products?
Sunny just checked the list of our buyers last month, there are Japanese, Italian, USA, Korean, Russian, UK seems Germans really has some issue with Aliexpress in general or with only the particular shop. Strange, maybe capslock input regarding unresolved electric safety EU regulation is correct but how the government may hide the particular products?
I ordered an APU 7/10/22 and received it today (12 days). The Aliexpress interface is a little clumsy but they are taking user security seriously. I won't be able to hook it up for at least a week- I'll be traveling. I'll share my experiences then but I have every expectation of excellent performance.
@IVX
Now that the ADC and APU are available, is there anything about the DAC that you can already share ?
It says on the tin + sin(x) source. Will that be analogue ? Any other goodies that sets it appart from off-the-shelf DACs ?
Also, any design goals like SINAD, rough ETA and rough pricepoint ?
Now that the ADC and APU are available, is there anything about the DAC that you can already share ?
It says on the tin + sin(x) source. Will that be analogue ? Any other goodies that sets it appart from off-the-shelf DACs ?
Also, any design goals like SINAD, rough ETA and rough pricepoint ?
I do the design of that Cosmos DAC but slow due to.. well, you can see the reason from my posts. In fact, I'm a single person responsible for all in the E1DA but selling handles my wife Sunny. That's why all things go in slow-mo style. I using the proto of Cosmos DAC(it contains LPF 1k/10k) as the reference sine source for Cosmos ADC calibration etc. Dual ES9038Q2M, DR 130-131db THD+N -123-124db or -131db with LPF 1kHz.