WiiM Ultra Firmware v5.2.708441 - Feb 22, 2025

Please review the WiiM Ultra update release notes below. If you encounter any issues, feel free to reach out to us. This firmware update is being rolled out in stages, with devices updating sequentially over the next few days.

5.2.708441 (In Progress)


Release date:

2 / 22 / 2025

What's New:
  1. Per-Source Group Audio Delay: Adjust group delay independently for each input source in multiroom audio.
  2. Preset Enhancements:
    • Move presets (requires app v3.1.4).
    • Presets now work in slave mode.
  3. USB Output Improvements: Reduced playback stuttering and improved subwoofer sound quality.
  4. Playback Enhancements:
    • Smoother HDMI ARC playback.
    • Fixed incorrect playback status and Pre-Gain issues after seeking.
    • Resolved Audible playback issue via Alexa.
  5. Display & UI Updates:
    • New VU Meter designs (requires app v3.1.4).
    • Added remote pairing and Wi-Fi disconnect indicator.
  6. My Weekly Q Support on Qobuz: Play "My Weekly Q" playlist (requires app v3.1.4).
  7. Prompt Sound Option: Ability to disable system sounds (requires app v3.1.4).
  8. Wi-Fi Stability: Improved connection reliability, especially for mesh networks.
  9. USB Output Enhancements: Reduced playback stuttering, improved subwoofer sound quality, and added the ability to select either maximum or fixed resolution (requires app version 3.1.4 or later).

Bug Fixes:
  1. LMS Fix: Fixed LMS reconnection issue.
  2. USB Indexing: Resolved USB scanning interruptions for M4A files.
  3. Pop Noise Reduction: Reduced pop noises when switching inputs or adjusting subwoofer settings.
  4. Radio Paradise Fix: Corrected a playback failure issue.
  5. General Fixes: General performance and stability improvements.
 
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Of course what matters the most in the end is acoustical performance)) but in order to achieve that performance we do all sorts tweaks like upgrading a DAC, or adding a subwoofer and so on..

I've been playing around with such things for about 15 years, and I'm quite firm in my opinion that you'll get better results with your preferred DAC and the Ultra sub out to your subwoofer set up with a good crossover point and room correction than with your preferred DAC running your speakers full range, room correction or not.

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..)
It's about the WiiM Ultra sub output. Not the subwoofer internals.
 
The subwoofer out needs one. How could it share the main DAC?
The ESS Sabre ES9038 Q2M DAC has only two channels, so only possible to use for RCA stereo output.

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.
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.
 
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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?
 
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?
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.
 
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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