Hi Riona! I'm in Russia, so i bought the cable via a local agent. As far as i know Taobao's sellers do not offer international shipping directly to customers (at least it's like that for Russia). In my case the agent's fee was 10% and about $5 for shipping. Maybe ClieOS can give more useful...

I'm using A15 + HA-2 with the taobao's cable and can confirm that HA-2's battery lasts first in this combo. A15 does not charge from HA-2 with this cable.

  ClieOS, thank you a lot for the comprehensive guide. Great work.

Looking forward for the guide ).

  I've just received that cable from taobao and can also confirm that it works fine connecting my Sony A15 and HA-2. A15 seems to be a good digital source in this combo.

maybe someone can share also impressions of the A73 and OPPO HA-2 combo's sound please?

Has anybody tried the A73 with Sony A15? How do they sound together?

  GR07 - better, still neutral, better bass, less, but still sibilant -- - did you mean GR07BE or GR07mkII here?

What is the value of the resistor please?

  Could you please compare the sibilance severity of A73 to GR07BE? I'm using GR07mkII and they too much sibilant for me, so I'm looking for something more tolerant to sibilance.

+12 dB by the cable... doubtfully for me

I guess as the sensitivity has been increased then the driver is somehow changed, right? Could you shed some light on it please?

  According to USB specification when the OTG mode is used pins 4 and 5 must be connected at the *host's* side. In our case A-15 is the host device, right? If so, the connection of 4 and 5 pins at the OPPO side (USB) is not necessary. Am I wrong?

I have ordered one from taobao too. Hope it will do the job.

In the system tray you can find the "Oppo USB Audio Control Panel" icon. Open the panel and navigate to "Info" tab. .