FiiO K9 Pro Hi-Fi DeskDop DAC&Bluetooth&Amplifier，XLR/RCA/4.4/Optical/Coaxial interface

[bflat]

@azertyproxy. Hi! Thanks! On "Ola Gjeilo: Ubi Caritas - Piano Improvisation" my old DAC constantly emits weak clicks. I generated test harmonic signals with a frequency of 1 kHz. With them, my old DAC clicks very loudly - the speakers are shaking. Try to reproduce them! Maybe they will clearly reproduce your problem for all ...

Are you saying that the clicking sounds are part of the recording or that your "old" DAC is creating the clicks just like some have experienced with K9 Pro?

 

[looki look]

Dear friend,

If you are convenient, could you please show the phenomenon via Video? And if you are convenient, please check whether the issue remain when using line in, headphone out? Thanks in advanced!

Best regards

3 posts above i've attached a recording of a volume drop. I meanwhile did a test with line in instead of digital coax in ( the line out I used the last years with my headphone directly connected to and which never showed volume drops). Result: I had a drop after around 2 min and around 20 sec later again, but only on high gain setting. with middle gain no drops.

@azertyproxy: I tested with my cheap 32 ohm headphone philips shp 1800, middle gain and 11 to 12 oclock position with brian wilson - god only knows and I had no clicks.
(line in and digital coax in) also tested high gain: no clicks so far on my k9pro.

co-result of testing line in:
letting my sonos be the dac with line in to fiio k9pro is definitely worser sound than using sonos digital coax out and let fiio k9pro be the dac.
k9pro dac creates much clearer sound.

... I downloaded a 88khz song to test >48khz color ring...., but it seems my (gen 1) sonos connect does not support that frequency. ... just checked: even sonos gen2 supports max 48khz (thought it can up to 96khz)
I probably need a new player. Did I see correct that the fiio players have real buttons? That would be great. I would need Volume +- and skip to next title and fast forward as real Buttons, so that I can feel and press them blind when i'm listening in bed (with touch screen lockable). perhaps somebody can give me a private message who has a fiio player (or other) because its off-topic.

 

[ATimoff]

@bflat In my test signals a pure 1 kHz sine wave in wav format. Signal level -3 dB. Those. clicks are not part of the recording. My old DAC has the same click problem as the k9 Pro. Synthesizing the original signal is easier than searching for clips on the Internet. Accessibility of clips may vary from country to country ...

 

[ATimoff]

Synthesis in the Ubuntu console: ffmpeg -v error -y -f lavfi -i 'sine=frequency=1000:sample_rate=48000:duration=30' -ac 2 -af 'volume=18dB' -c:a pcm_s24le out.wav

 

[ATimoff]

If there is no Linux. You can synthesize the signal in the free Audacity editor. It is available for all operating systems.

 

[jaxz]

Hi. No volume drops or clicks on my side. Windows 10 PC, USB only until now (got it yesterday). Good package overall, nice clean sound with HD800S (4,4 mm balanced)

 

[ATimoff]

@jaxz Hi. Good news. Due to the lack of mass reports, it can be assumed that these problems are an unfortunate accident. What clips and files have you tested on? The most important links were provided by "azertyproxy".

 

[jaxz]

@jaxz Hi. Good news. Due to the lack of mass reports, it can be assumed that these problems are an unfortunate accident. What clips and files have you tested on? The most important links were provided by "azertyproxy".

Heard azertyproxy short clips. Nothing strange, no clicks. The christmas song was nice.

 

[jaxz]

I can't get 24 or 32 bits on control panel. Only 16 bits. Driver and firmware installed/updated.

 

[Alien HP]

Does anyone know if there is a way to turn off the volume knob backlight?

 

[FullBright1]

https://majorhifi.com/fiio-k9-pro-review/

""""" Bass and midrange resonance displays an equal amount of transparency, forming a tight resolution that perfectly replicates musicality. I didn’t find the K9 to produce much in the way of added texture, instead it revealed details in a more realistic manner. In terms of gain, the K9 leaves room for improvements. I used the amp mainly at its high gain function, and I still had to turn the knob to almost 3 o’clock in order to find a comfortable loudness. This still leaves you a good amount of headroom, and headphones with lower sensitivities than the Final Audio D8000 and the HiFIMAN Arya should give you even more room for potential volume.

For the imaging and soundstage, I’ve never come across an amp in this price range that preformed such effective spatial properties. I felt like the K9 just had an unlimited amount of breathability, giving airier headphones an unrivaled presence, with the D8000 appearing the most like natural speakers. Greater immersion in the sound field is easily obtained with the K9, as it effortlessly expands upon the added dimension of open-back headphones.

Summary​

For its price, the Fiio K9 is incredibly impressive with its build, input/output options, and of course its sound quality. It’s a quite large system, but it preserves a level of solidity that puts it in a class well beyond what you think a device like this should go for. We don’t have a lot of meaty amps like this in this price range, but Fiio has delivered an exceptional unit here that makes the market that much more competitive. """""""""

 

[looki look]

Does anyone know if there is a way to turn off the volume knob backlight?

I think you can set it up with the fiio control app (i have android app v2.6 in the moment). I could choose between off, ring and multi ring and when not on "off" I had a scale from 1 to 5.

 

[TommyGeenexus]

Does anyone know if there is a way to turn off the volume knob backlight?

The available configurations:

 

[TommyGeenexus]

https://majorhifi.com/fiio-k9-pro-review/

""""" Bass and midrange resonance displays an equal amount of transparency, forming a tight resolution that perfectly replicates musicality. I didn’t find the K9 to produce much in the way of added texture, instead it revealed details in a more realistic manner. In terms of gain, the K9 leaves room for improvements. I used the amp mainly at its high gain function, and I still had to turn the knob to almost 3 o’clock in order to find a comfortable loudness. This still leaves you a good amount of headroom, and headphones with lower sensitivities than the Final Audio D8000 and the HiFIMAN Arya should give you even more room for potential volume.

For the imaging and soundstage, I’ve never come across an amp in this price range that preformed such effective spatial properties. I felt like the K9 just had an unlimited amount of breathability, giving airier headphones an unrivaled presence, with the D8000 appearing the most like natural speakers. Greater immersion in the sound field is easily obtained with the K9, as it effortlessly expands upon the added dimension of open-back headphones.

Summary​

For its price, the Fiio K9 is incredibly impressive with its build, input/output options, and of course its sound quality. It’s a quite large system, but it preserves a level of solidity that puts it in a class well beyond what you think a device like this should go for. We don’t have a lot of meaty amps like this in this price range, but Fiio has delivered an exceptional unit here that makes the market that much more competitive. """""""""

I can only second this, the K9 is incredibly impressive in regards to audio performance and versatility in this price range. Challenging to find anything comparable sub 1000$.

 

[ATimoff]

@jaxz Try to output sound bypassing the Windows sound system. For example, the foobar2000 player + ASIO driver (as part of the Fiio driver). There is a lot of information on the Internet about how to configure the player. I listen on Linux using the Deadbeef player. There are fewer setup problems here. Everything is transparent.