Hello, yes it can be detect now :relieved: but it got me worried. How long will it last? :thinking: Maybe i should do a firmware upgrade? i currently have the vB.15 firmware

I managed to get my fiio to be detected :relieved:. What i have done is uninstall the USB dac driver v4.47.0 and install the new driver v5.30.0. So wierd that the K9 pro wasn't detected anymore

Hi @FiiO , i have the fiio K9 pro and it is not detected by the PC anymore. i tried optical and usb input with 2 pc and several cables. Still fiio K9 pro not detected by anything. I can't use it anymore :cold_sweat:. I don't know what to do. I tried turning it on/off by flipping the switch but...

From my experience, BT is used to sync the app from the phone with the fiio amp and then let you change the filters even after you switch from BT to let say USB input mode

https://www.head-fi.org/threads/a-questionnaire-about-fiio-k9-pro.961239/#post-16726192

Same problem here with my Fiio K9 AKM. It has been several mounths since my first report about it. I tried everything but still have the clicks issue. Happy to not be the only one that encounter that issue though. Patiently waiting for fiio engineers @FiiO to fix the issue.

Hi, still have it with the last firmware but fiio said it will not occur on K9 pro ESS version

Hi, sadly, i can't prove it changes the sound. I spent some times several mounths ago, trying lots of power cables from different company: Furutech odéon, Furutech Empire, Audiophonics Stealth, Audioquest Y3 & Z3 and Taga Harmony. I m not sponsored in any way by any of them, just love to try to...

I tried several power cable. Even against pricier power cable, the audioquest Y3 is the better match for me. I also use an audioquest carbon for the usb input

I replaced the K9 pro stock cable with an audioquest Y3 power cable, it gives a bit deeper bass that hit harder while retaining that precious liquid and open sound of the K9 pro. I won't go back to stock cable. no way.

Where did you buy The ESS version?

Hi, I already own a K9 pro AKM version but i want to buy an ESS version. Is the ESS K9 pro available in Europe?

Hi, i don't know about xlr output but i use the K9 pro in Dac only mode and output the sound to a Marantz amp through RCA and it sound reaaaally good, even better than in pre amp mode.

I tried the new firmware 1.15 beta version on my K9 pro. Sadly, the cliks issue is still here :frowning2:

Happy New Year everyone! I would like to try the new firmware (beta). Do you have a link? i cannot find it anywhere.

You guys are lucky if you can't reproduce the click issue. It s just sad that i spend time and money to send the K9 pro back to the fiio seller and still have the issue. The K9 is so good though, i will buy another one if i have to. Maybe the K9 double ESS version.

I did hear some clicks on the song "Ola Gjeilo: Ubi Caritas - piano improvisation" at 50% volume. 230v

@FiiO Willson @FiiO Hi, I found a song ('God Only Knows' - 'Brian Wilson') that "clicks" like crazy on K9 pro from start to end (~40-50% volume). As i listen to songs on deezer i can only share the link: https://deezer.page.link/oi3H8HNgTrTQ7eAP6 I m looking for the FLAC version.

Even if i have these clicks issues, as it only appears on lower frequencies and at some volume (40% to 60%), i wouldn't mind keeping my K9 pro. As i said before, i tried several desktop amp at the same price bracket and the K9 pro is just better. Soundstage, microdetails, musicality. Sound wise...

Hi, i got the K9 pro back and can confirm that the clicks/pops issue is still here :frowning2: I can give you another exemple. At the begging of the song (first 5 secondes) "Elderbrook - Could", when the bass drop, clicks shows at moderate volume. Another exemple, in the song "G.O.M.D - J.Cole"...

Hi, a little update on the clicks/pop issue i have with the fiio K9 pro. Sadly, they sent me back the K9 pro without any repairs. They told me that they were able to reproduce the issue playing the youtube video where i found the clicks/pops issue. But then, they told me that they tried other...

I m in touch with the seller (he did send me emails last week but they landed in my spam folder). He asked me to try to play hires files via different input sources . I answered that i reproduce the issue whatever the source and the files. Waiting for his next answer. Hope i can replace my unit...

Ohhh i also tried Topping DX7 pro before sending it back (also tried opamp rolling). Fiio K9 pro is just wayyyy better. Bigger soundstage, more micro-details, more musicality. i love the K9 pro (except for these clicks issues have, but i think i have a bad unit that's all)

Hi, another weird thing happened to my K9 pro today. I was listening to music and suddenly the music stopped and the led ring got from a steady blue light to a blinking red light :weary: I had to restart it. Still no news from any fiio support for my clicks issues

Thanks for helping me. I still have to try to connect an ubuntu device to the K9 pro (will try this next week). It can't be the power cable as i have replaced the stock cable with an Audioquest NRG-Y3. It can't be the USB hub as the issue also occurs on optical and BT input. I don't think it's...