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Don't mean to criticize. I don't think your "calculation" is scientific. 1) the sample size is too small (8 deaths). 2) we don't know anything about the patients, including their health conditions before they passed away, and under what conditons did they contract the disease etc. For...

The key thing is aerosol has to be present in the environment onto which the virus can adhere to. When the "loaded" aerosol get dispersed, the virus is spread. A medical team in HK Public Health Service has conducted an experiment that showed the virus is unlikely to be transmitted via...

Ooops! Sorry folks!! Look like the video was removed from Youtube!!

From a Japanese Infection Control specialist who was aboard the Diamond Princess and then got kicked back off the ship in a day ( due to his comments on the mishandling of the whole fiasco). He basically said the beaucrats were running the show instead of the specialist. And the situations on...

I understand your point of view. For such a large scale epidemic, quarantine is the only effective way to slow or stop the spread since there are no effective medicines (drugs or vaccines) to treat the patients. In Wuhan, my personal opinion is that there are sufficient space to separate...

Just a few random thoughts on the current epidemic: A senior official of an Indian drug manufacturer (many generic and brand name drugs are manufactured in India and shipped to many countries) recently commented that since China produces significant quantities of raw materials for drug...

Can you clarify?? Veeceem asked whether the DAC can be used to power an amplifier (Hypex NC). The picture of D5 clearly showed XLR out connectors!!

Great! At least it is covered by warranty and you are getting a new one. No need to ship the unit across the ocean.

That's very strange. Sounded like the DAC was working for a brief period of time, and then stopped. I guess only Topping would understand what the error message means. By the way, is there a special reason that you hooked up the DC cable to an Apple USB adapter instead of directly to a USB...

The fact that error messages were displayed suggested that the unit is "alive". Would you mind describing how you start up the DAC after connecting to the PC (?). You also mentioned that you "tried" to update the driver and firmware, what happened?

@cjfrbw The description of your hp amp stirred my interest. Would you mind post a link to the product? Thanks! Regards,

I second this idea. I don't have any trainning/background in EE and the AES meeting will be way over my head. Something a bit more technical than a regular audiophile show would be ideal. Regards,

Wow!! Two transformers PSU for a small amp! Dual mono??

I thought you suggested that it was an "internal issue" ==>"Are internal components/design causing the power supply noise you are measuring? "

Wow!! That's very clean .... for a "cheap" DAC.

You are funny!!

Not with mine. I played it for an hour and the chassis may be slightly warmer than room temperature.

I concur. I got mine about 1 month ago. I love the sound of the DAC. Comparing to my generic 9018S DAC, the D50 sounds definitely substantially better. For the price, absolutely no complain.

Thanks! I misunderstood. So you changed the power supply from a USB 5 V output of your computer (using the power cable supplied) to the iPower. Just curious whether you have tried using a 5V battery as the power supply before switching. Regards,

Please elaborate what kind of power supply that you were using before. Thanks!