WiiM Ultra Firmware v5.2.708441 - Feb 22, 2025
- Thread starter WiiM Team
- Start date
Thanks for the constructive feedback, I am half way there I guess) Just need to figure it out with RC. Either I am doing it wrong or the built in RC not very useful in the Ultra..
Despite being a newbie, I understand that the sub is fed by an analogue signal and there is no need for a digital to analogue conversion within the sub. At least with my sub..)
hgo58
Major Contributor
It's about the WiiM Ultra sub output. Not the subwoofer internals.
Really? Sorry, I thought you were just making fun of me) I thought there is only one DAC inside the Ultra)
hgo58
Major Contributor
There is actually 3 as far as I know.
The main, the sub and the headphones.
I am not sure if the headphones uses the main DAC? Someone may correct me.
Some good info in thread 'Teardown of the Ultra' https://forum.wiimhome.com/threads/teardown-of-the-ultra.5441/
slartibartfast
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Not everyone is sarcastic here
EddNog
Senior Member
If there is a DAC for headphones, does that mean it can output simultaneously with the mains?
Steve Woodhouse
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I’m unable to watch that video, but does it identify three separate DACs? I don’t see that there’s any need for more than one.
slartibartfast
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The subwoofer out needs one. How could it share the main DAC?
hgo58
Major Contributor
The ESS Sabre ES9038 Q2M DAC has only two channels, so only possible to use for RCA stereo output.
No only two. So maybe the headphones really do use the main DAC and there is an analog switch between the RCA output and the internal headphone amplifier?
The video do identify the op-amps used for the analog output and they are actually very high-end (very low noise and distortion).
Yes, they are very much part of the excellent Line Out performance of the Ultra.
Curators note: Please continue the non-sarcastic form of communication.
Curators note: Please continue the non-sarcastic form of communication.
Last edited:
Not yet, but wiim have started a thread on it.
narcoleptic-haze
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Wow those two new VU meter designs ... must've spent minutes making those. And no other customisation still.
I just updated my Ultra to firmware 5.2.708441. Now when playing files from an attached USB hard drive I'm having an issue. If I select an album and hit play the track playing is in a panel at the bottom of the screen on my iPhone 13. Now if I click on the panel it is maximized and just shows just the track playing. Now if I click on the three dots in the middle right of the display it brings up a number of choices one of them being "View Album". If I select "View Album" the WiiM app is closed. It should go to the tracks on the album file I'm playing. Why is the WiiM app closing when I select "View Album"? This was not happening with the previous firmware version.
Just out of curiosity I played an album from my Qobuz favorites. When I do the same steps as above and select "View Album" it shows all the tracks on the album and does not close the WiiM app.
I find this to be some type of odd firmware glitch. I powered off the Ultra and my iPhone 13 with no change. Is anyone else experiencing this issue?
Just out of curiosity I played an album from my Qobuz favorites. When I do the same steps as above and select "View Album" it shows all the tracks on the album and does not close the WiiM app.
I find this to be some type of odd firmware glitch. I powered off the Ultra and my iPhone 13 with no change. Is anyone else experiencing this issue?
The release notes for firmware 5.2.709956 ...
... don't explicitly mention a fix related to this, but more improvements to the indexing process. Maybe it's worth waiting for this update and run the indexing again once you got it.
Thanks for posting that information. It could be an issue related to indexing as it doesn't happen with Qobuz. I put in a ticket with WiiM support.
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