Here's a copy and paste of the specs from taobao: The DAC should be AK4495SEQ

Headphone extension cord for under $10. https://www.amazon.com/dp/B00LM4OMUW/ref=twister_B01HZP5KN4?_encoding=UTF8&th=1

Looks interesting. It is marketed as a clip for sports usage and have is supposedly water proof. There's also only a single port (i.e. the audio jack) and requires it's adapter to charge and to transfer. Really looks like a ipod mini, Rather impressed with the full black OLED though. Really...

Not familiar with Penon. But no reason for people not to try this at such a cheap pricing.

Just in case you are not aware, Massdrop is selling the Ruizu A50 at $54.99.

No settings. Just plug and play. The only thing that may be confusing is that aux in and aux out at the same port (at the back).

Oh yes. The aux out does by-pass the solid state amp. I'm use the aux when I'm station at my desktop, linking it out to a tube amp and cans.

Saw some good deals on the HE-400i from some reliable stores on taobao - brand new piece going for what the used market is asking. Couldn't resist the poison and have ordered a pair. Hopefully I can get it by end of next week through consolidated shipping. Can't wait! :D

I was surprised to find the rather odd configuration from the power tubes and have the nagging suspicion that it's not the same as the Mk III. Thanks for pointing me with the right configuration. Apparently the stock tube were Beijing made 4P1S. I'd probably get something similar from taobao...

Quick question, are the power tubes for the LD III+ the same as the Mk III? My power tubes are starting to give me some issues on the LD III+ with buzzing and occasional absence of sound from one channel. I'm trying to find the specs for replacements.

My favourite portable set-up so far include the XunSound XS01 line out to XDuoo XD05, and linked to a bass-heavy darth beyer. Love rocking some visual-kei and jap metal on this.

Oops... typo. Should be 16K

There's more information on the D200 on the taobao website Apparently both uses the AK4495SEQ chip. The black version use OPA2604 and JRC2114, while the gold version use MUSES8920 and MUSES8820 The website also claim that it can push 600ohm headphones... I was looking hard and long at it, but...

I am still using the default OPA604AP on the xunsound. It's mostly used along with the XDuoo-XD05, which has a better opamp imo. Not planning to opamp roll anytime soon.

Received my Ruizu A50. It's a little black beauty with 4 buttons and a jog-dial as the main input of the device. The 4 buttons are: power (on top), return, forward and backward (on the left). Short-press the power button lock the device from accidental input during playback. The jog-dial...