try it with iFi iPurifier 3 together with y usb splitter cable, powered by good battery power supply like Kingrex u-power. my jaw dropped

@Lacas Can you tell me if a generic y usb splitter cable is good enough or what cable you use?

Why have you been warned so strictly against shaking this dongle? are these dacs using some kind of bulbs or what is so sensible about them?

I have been listening to the RU 7. I am still blown away by the sound quality. It resembles those SACD vintage 1-bit dac from the 90s. Very musical, warm and clear. I have been comparing RU7 with other entry level DAP but those entry DAP are no match agaist the RU7. I have to go all the way up to Midfi level DAP like the Shanling M7 and Fiio M15s. Those 3 have different sound but they are all on the same league. THats how good the RU7 is. I am now looking at Cayin N7 as some say it has the same tonality only diff is the amp section. (alittle wider and more dynamics).

Another reviewer mentioned that he's been strictly warned by the company about shaking the RU7. Why is this dongle so fragile? He even mentioned that he was warned about losing the warranty for doing so! So far nobody has been able to tell me why shaking it is so strictly prohibited. This will be definitely a dealbreaker for a portable device if vibration is going to brake it.

apparently it is what it is