FiiO has released the USBDAC JA11, with an initial price of only $9 (69RMB) and support for PEQ DSD128 PCM384

[MCH]

Thanks I am going to reload the firmware and check again, I tried with a High-shelf filter (8000Hz at first and then 2500Hz to test) and it made almost not difference I tried against Equalizer APO on the PC not as smooth but it was the only way for me.

quick and dirty measurements of my 200Hz shelf +3dB (blue), your 2500Hz shelf +12dB (orange) and flat (green). The gain seems spot on. I am trying to figure out the frequency setting though. Maybe your eq settings are not stored properly in the device?

edit: strange enough, seems that the frequencies you set in the app EQ, get doubled in the actual measurement, like the sweeps show. But could well be i have some setting wrong in REW. Will try to figure out.

edit2: confirmed: the values of the frequency entered in the app are doubled. i.e. if you enter a peak at 1kHz, you get a peak at 2kHz. That could explain why @muza_1 could not hear changes when applying a 8kHz shelf.

 

[muza_1]

quick and dirty measurements of my 200Hz shelf +3dB (blue), your 2500Hz shelf +12dB (orange) and flat (green). The gain seems spot on. I am trying to figure out the frequency setting though. Maybe your eq settings are not stored properly in the device?

View attachment 378422

Thank you, I just reinstalled the firmware, I will try as soon as I can.

 

[muza_1]

quick and dirty measurements of my 200Hz shelf +3dB (blue), your 2500Hz shelf +12dB (orange) and flat (green). The gain seems spot on. I am trying to figure out the frequency setting though. Maybe your eq settings are not stored properly in the device?

View attachment 378422
edit: strange enough, seems that the frequencies you set in the app EQ, get doubled in the actual measurement, like the sweeps show. But could well be i have some setting wrong in REW. Will try to figure out.

Well reinstalling the firmware worked, now all is working as supposed to, thanks.

 

[hugwolf]

After granting Fiio Control app access to detect nearby devices, it seems all my connectivity issues are resolved.

 

[DOuG pRATt]

I grabbed one of these recently for $3. It's currently $6. It has a Realtek ALC5686. https://www.amazon.com/dp/B08817XKSW

 

[trungdtmc]

@MCH do you have THD sweep measure? this is mine

 

[MCH]

@MCH do you have THD sweep measure? this is mine

View attachment 378539

No, I have not measured it. I was using a sound blaster xfi HD for the sweeps, I think the THD measurements will be limited by the card, but could give it a try tonight.
If you still have it hooked up, would you mind setting a peak at 1kHz with the parametric EQ in the fiio app and measure a FR sweep to check if you have the same "double frequency" bug I have? Thanks!

 

[yafengabc]

I haven't notice any difference compared to a CX31993 dongle, I use it for about 2-2.5 hours a day, maybe in not long enough to notice.

No connection problems for me.

Are the Shelf-filter working properly? For me even 12dB changes make little difference.

I made some measurements at maximum and minimum power, which may not be very accurate. I used PEW to output a 1Khz sine wave to measure power. I measured CX31993 (No AMP chip), JA11 (KT02H20), and JM30 (CS43131 no AMP)
CX31993: If there is no output, power consumption is negligible (it may be due to accuracy issues with my device, but overall power consumption is very low)
If a sine wave is output, the power is approximately 62 milliwatts
JA11: If there is no audio output, the power is 80 milliwatts. If there is a sine wave output, the power consumption is 134 milliwatts.
JM30: If there is no audio output, the minimum power is 103 milliwatts, but the power is unstable, sometimes approaching 300 milliwatts. If a sine wave is output, the power is about 340 milliwatts

Of course, this is almost the maximum power, even if I use JA11 to drive my 91dB sensitivity he400se headphones, the power is only about 80mw.As a comparison, the CX3193 scheme has a normal volume and low power of approximately 5-10 milliwatts

So it takes a long time to listen to music. The CX31993 is more energy-efficient.
Although this is the case, the typical mobile phone battery is around 15 watt hours, and an 80 milliwatt power consumption, even after listening for 10 hours, is only 0.8 watt hours, which is still negligible

 

[trungdtmc]

No, I have not measured it. I was using a sound blaster xfi HD for the sweeps, I think the THD measurements will be limited by the card, but could give it a try tonight.
If you still have it hooked up, would you mind setting a peak at 1kHz with the parametric EQ in the fiio app and measure a FR sweep to check if you have the same "double frequency" bug I have? Thanks!

i got same issue

 

[MCH]

View attachment 378705

i got same issue

Thanks for checking,
I hope they address it when they update the app. Interesting that nobody noticed this before.
Is there a way to report this to fiio? Do they have a forum or something? Well, I can live with that, just knowing I need to set the EQ half the frequency and that’s it

Btw, tried to see if I can get a level vs THD graph, but my card ADC is not good enough for that. Can give it a try with my good ADC but I need to figure out the connection first (it only has balanced inputs and I am not sure I have the right cable).

 

[Rja4000]

Interesting.
Thanks

 

[hugwolf]

View attachment 378705

i got same issue

So this is with a 8dB peak set at 1k Hz? This bug applies to the peak and both shelf filters?

 

[MCH]

So this is with a 8dB peak set at 1k Hz? This bug applies to the peak and both shelf filters?

Yes, shelf filters too. Look at the ones in post #41. The first should be centered at 200Hz and it is at 400Hz. The second should be 2500 Hz and it is at 5kHz

 

[MCH]

Yes, shelf filters too. Look at the ones in post #41. The first should be centered at 200Hz and it is at 400Hz. The second should be 2500 Hz and it is at 5kHz

I wrote to Fiio and they answered with a generic email telling me to update the firmware to version 1.7

Unfortunately I could not tested it yet because the firmware tool does not seem to work in my PC, in the step where i need to select the Fiio JA11 in the firmware tool, the menu only shows nonsense like "precise selection" and stuff like that, but if someone wants to give it a try, there it goes:

1. Download from the link below and install the Fiio driver v.5.68.0:

https://forum.fiio.com/note/showNoteContent.do?id=202105191527366657910&tid=17

1. Download the firmware and firmware update tool and insturctions here:

https://bbs.fiio.com/note/showNoteContent.do?id=201911191752415983705&tid=16

 

[Palladium]

I wrote to Fiio and they answered with a generic email telling me to update the firmware to version 1.7

Unfortunately I could not tested it yet because the firmware tool does not seem to work in my PC, in the step where i need to select the Fiio JA11 in the firmware tool, the menu only shows nonsense like "precise selection" and stuff like that, but if someone wants to give it a try, there it goes:

1. Download from the link below and install the Fiio driver v.5.68.0:

https://forum.fiio.com/note/showNoteContent.do?id=202105191527366657910&tid=17

1. Download the firmware and firmware update tool and insturctions here:

https://bbs.fiio.com/note/showNoteContent.do?id=201911191752415983705&tid=16

Like I said in a previous post, you need to plug in headphones into the JA11 dongle and then the whole getup to the PC USB port in order to be recognized in Device Manager. (My hunch is Windows treats the dongle as a USB headphone instead of a USB soundcard)

Then when you run the firmware upgrade app it should show JA11 in the first dropdown menu:

 

[trungdtmc]

I wrote to Fiio and they answered with a generic email telling me to update the firmware to version 1.7

Unfortunately I could not tested it yet because the firmware tool does not seem to work in my PC, in the step where i need to select the Fiio JA11 in the firmware tool, the menu only shows nonsense like "precise selection" and stuff like that, but if someone wants to give it a try, there it goes:

1. Download from the link below and install the Fiio driver v.5.68.0:

https://forum.fiio.com/note/showNoteContent.do?id=202105191527366657910&tid=17

1. Download the firmware and firmware update tool and insturctions here:

https://bbs.fiio.com/note/showNoteContent.do?id=201911191752415983705&tid=16

i already updated to 1.7ver before measuring, seem they do not know about this bug

 

[trungdtmc]

I did a few more measurements with the JA11, although I plugged it directly into the COSMOS ADC, there was no additional load, but the output signal amplitude clipped quite early, so I performed the measurement THD+N vs Frequency at -5dBFS. Multitones is poor

 

[MCH]

i already updated to 1.7ver before measuring, seem they do not know about this bug

@trungdtmc i got their attention in their forum, let's see how it goes, but might be good if you chime in to confirm you have the same issue:

https://forum.fiio.com/note/showNoteContent.do?id=202407041611473361891&tid=4#1s

 

[CedarX]

Like I said in a previous post, you need to plug in headphones into the JA11 dongle and then the whole getup to the PC USB port in order to be recognized in Device Manager. (My hunch is Windows treats the dongle as a USB headphone instead of a USB soundcard)

For whatever reason, I was able to upgrade the FW with no headphones plugged in. Same thing with FiiO Control, it was working with no HP connected. But, I have connected multiple KTMicro-based dongles & cable before on these same PC and Android phone—no KT02H20, but definitely a KT02F20 (TRN TE adapter).

After the upgrade to v1.7, I now have to connect a HP for FiiO control to work.

 

[hugwolf]

after updating to 1.7 my computer no longer recognizes the JA11 as an audio device. I have earphones plugged in. The volume controls on the earphones work but I cannot get audio to the JA11 from my pc. Works fine on android.

edit: after completely uninstalling the Fiio control panel it is now detected and working. Although I suspect I will have to reinstall the tool for any future firmware updates. Seems very clunky, constantly installing and uninstalling this app whenever an update becomes available...