Oh no, you're referring to the "USB DAC" setting in Settings->Audio. What I'm talking about is the "USB output mode" in the settings sidebar of of the Music App (not device settings). Only when I set this to "OFF" could I get the G3 to work with the M6.

I've tried the G3 with the Dunu DK-3001 Pro, and when using the -30dB volume setting I get a very usable volume range and only very slight hissing. The hiss is only noticeable when no music is playing and I initially plug the headphones in (effectively going from dead silent, and then hearing...

Anyone managed to successfully get the G3 to work with the Fiio M6? It seems like when I first plug it in the light comes on, but after that there's nothing.. No light, and no sound when I start playing music. In fact, the Fiio gives no confirmation of an external device having been connected...

Nah, not sure on the manufacturing date. The best info I have is that it's from the batch that was sent to Samma3a in May

Interesting.......I checked again, mine definitely does NOT have any markings.

Woops, deleting this reply as I forgot I had already made a recommendation in this thread

This is a graph I took with the BL-03 with foam tips, and the ER2XR with the triple flange tips. It's important to note that the perceived signature of these would not be quite as similar as their frequency response graphs might suggest, simply because they are inserted into the ear canal at...

Topping is absolutely killing it with the DX7 Pro.

ER2SE for fantastic neutrality, XR version for a warmer and more bassy sound

To be fair, the measurements should be taken with a pinch of salt. Unfortunately I simply cannot guarantee that the insertion depth for both tests was exactly the same. I try to take a number of measurements and then often average them out. So yeah, I'd only recommend using the graphs to get a...