WiiM Amp Firmware v5.0.814734 Update - Apr 23, 2026

Please review the WiiM Amp 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.

5.0.814734 (In Progress)​

Release date:

Apr 23, 2026

Highlights:
  1. Sub & Main Speaker Sync: Automatically aligns subwoofer and main speakers for improved timing at the listening position.
  2. Spotify Smart Play: Resume your latest listening session with a single tap.
Playback & Audio:
  1. Playback Latency: Reduced delay when starting playback.
  2. EQ: Improved responsiveness when adjusting and switching EQ settings.
  3. Line In: Fixed distortion during extended playback sessions.
Radio & Streaming Services:
  1. TIDAL Connect: Upgraded SDK to resolve unexpected playback interruptions.
  2. Soundtrack: Updated SDK for improved playback stability and performance.
  3. TuneIn: Fixed playback issues for certain stations and improved resume behavior after long pauses.
  4. Deezer: Fixed unexpected playback interruptions.
General Improvements:
  1. Wi-Fi: Improved network stability and enhanced compatibility with Wi-Fi 7 routers.
  2. HDMI ARC: Disabling automatic audio output now correctly keeps WiiM in standby and defaults to the TV speakers.
  3. HTTP Server: Improved concurrency and stability under high load.
  4. Audio Input: Fixed playback crash issues.
  5. Alarm: Fixed incorrect alarm and preset volume behavior.
  6. Roon: Fixed occasional crash issues.
  7. Alarm: Fixes BBC and vTuner alarms defaulting to the chime.
  8. Qobuz Connect: Fixed occasional playback stopping issues.
  9. TV Remote: Allows adjustment of the volume step using the TV remote.

​

 
Click to expand...
s3igell said:
Are we becoming "So Entitled" that there is no appreciation for what WiiM is doing - producing and distributing Firmware and App Updates (including NEW FEATURES and Fixes and Follow-ups to address changes in Other Companies Products) of such a quantity that they don't fit on a single screen with a cadence of 4-6 Releases per year??
Or are we slipping into a graceless world of "I want it... I want it NOW... But I don't want it until it is convenient to me..." ??
Click to expand...
The feature I am talking about was first introduced as a beta in October 2024. It still doesn't work in May 2026. I don't even know if it is possible.
WiiM Team

Completed Thread 'Automatic timing alignment for Main Speakers and Subwoofer'

Hi WiiM Community,

We are looking for beta testers for the new Automatic Timing Alignment feature for Main Speakers and Subwoofer. This feature automatically measures the audio delay between your main speakers and subwoofer to achieve perfect synchronization. This feature is available exclusively on WiiM Amp, WiiM Amp Pro, and WiiM Ultra.

Why do we provide this?

When a WiiM device, like the WiiM Amp or WiiM Ultra, connects to your speaker and subwoofer, it assumes both audio paths have the same delay. However, if your powered speaker, amplifier or subwoofer adds extra audio...
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Funny...
Historically in pro, we used an "inverted" approach ...

Simply, they would precisely find the slightest level, if a finer adjustment than a simple 0/180, even with a simple sound level meter... then we would rotate the phase 180 degrees. (For example..you can see the manuals for Genelec subwoofers without DSP... and use their 85Hz frequency.)
;-)
(Hence the idea that richer settings than just 0/180 would be welcome to make relevant and not necessarily so complicated approaches... by testing the different settings in bursts on a fixed frequency etc... an almost "simple" approach.)
 
Last edited:
Shotgun Rico said:
I checked this morning. Still haven’t received it either.
Click to expand...
I have to say I thought it was strange that I received it immediately after asking the question. Particularly since @RyanWithWiiM said it had been withdrawn because of unstated issues. My version is the same as the thread title so presumably the one with issues. What is going on?
 
QuarryHunslet said:
Did you give them the Mac Address of your WiiM Amp? They might have sent it to your device specifically. 🤔
Click to expand...
I didn't but they would have known it from the device log I suppose since I asked via feedback.
Why send it to me if they know it has issues though? I only asked if it was still being worked on.
 
canard said:
Funny...
Historically in pro, we used an "inverted" approach ...

Simply, they would precisely find the slightest level, if a finer adjustment than a simple 0/180, even with a simple sound level meter... then we would rotate the phase 180 degrees. (For example..you can see the manuals for Genelec subwoofers without DSP... and use their 85Hz frequency.)
;-)
(Hence the idea that richer settings than just 0/180 would be welcome to make relevant and not necessarily so complicated approaches... by testing the different settings in bursts on a fixed frequency etc... an almost "simple" approach.)
Click to expand...
Finding the setting with the worst crossover dip and then inverting polarity is a simple but very effective approach to sub integration, indeed!
I like to do this with both polarity settings, and then choose the variant that requires less added delay.
 
dominikz said:
Finding the setting with the worst crossover dip and then inverting polarity is a simple but very effective approach to sub integration, indeed!
I like to do this with both polarity settings, and then choose the variant that requires less added delay.
Click to expand...
The advantage is also having more than just 0/180...like in 30 or 45 degree increments ( (also exists...to the nearest degree!) ...then a 180 turn...

A simple, "mainstream" approach would be something to propose and consider... based on a single fixed frequency... like Genelec's classic 85Hz approach...
These people know a bit about the subject ;-)
an approach "as old as the world"....
 
Last edited:
canard said:
The advantage is also having more than just 0/180...like in 30 or 45 degree increments...then a 180 turn...
Click to expand...
These are technically different things, though. 0⁰/180⁰ is a polarity switch. The polarity is inverted for all frequencies.

Typical variable phase controls (as found on subwoofers) don't do that. They implement an all-pass filter for one (!) fixed frequency, which just happens to also affect other frequcies to a certain extent.

The delay setting manipulates the excess phase for all frequencies.
 
harkpabst said:
These are technically different things, though. 0⁰/180⁰ is a polarity switch. The polarity is inverted for all frequencies.

Typical variable phase controls (as found on subwoofers) don't do that. They implement an all-pass filter for one (!) fixed frequency, which just happens to also affect other frequcies to a certain extent.

The delay setting manipulates the excess phase for all frequencies.
Click to expand...
Certainly... but proposing a simple, classic approach of this type, probably quite easy to achieve, would be a good thing initially... it seems to me...
Easy to explain... and while we wait for other, more complex approaches to be finalized...
 
canard said:
Certainly... but proposing a simple, classic approach of this type, probably quite easy to achieve, would be a good thing initially... it seems to me...
Click to expand...
Having a procedure that is easy to follow by everybody is certainly just as important as providing the flexibility that more experienced users ask for.

I'm still with @dominikz in that trying both polarity settings and then settling for the one that needs the lower delay setting is quite easy and doable for almost all users.
 
Last edited:
harkpabst said:
Having a procedure that is easy to follow by everybody is certainly just as important as providing the flexibility that more experienced users ask for.

I'm still with @dominikz in that trying both polarity settings and then settling for the one that needs the lower delay setting is quite easy and doable for most all users.
Click to expand...
My point was simply to highlight this old, effective approach using a fixed frequency... (our phones are, in a way, already sound level meters in relative terms...) I just hope that some of the "audio" topics finally come to fruition... auto-gain/gain presets... or processing the subwoofer output of the Ultra, etc.
;-)
 
Last edited:
canard said:
Certainly... but proposing a simple, classic approach of this type, probably quite easy to achieve, would be a good thing initially... it seems to me...
Easy to explain... and while we wait for other, more complex approaches to be finalized...
Click to expand...
Genelec subs have a fixed crossover frequency of 85Hz. As mentioned earlier this is not necessarily where the sub and speakers actually crossover. In this example the crossover was set to 80Hz but the measured crossover frequency is around 130Hz

crossover.jpg
 
slartibartfast said:
I have to say I thought it was strange that I received it immediately after asking the question. Particularly since @RyanWithWiiM said it had been withdrawn because of unstated issues. My version is the same as the thread title so presumably the one with issues. What is going on?
Click to expand...
They might have just deployed the fix and restarted the rollout. I'll double check to confirm, but if you've gotten it, the problem should be resolved now. And they've restarted the push. I that's the case, it'll still take a little time before everyone gets it, as they'd want to test the fix in the real world too.
 
slartibartfast said:
Genelec subs have a fixed crossover frequency of 85Hz. As mentioned earlier this is not necessarily where the sub and speakers actually crossover. In this example the crossover was set to 80Hz but the measured crossover frequency is around 130Hz

View attachment 38245
Click to expand...
We can approach this differently... Observing at a sensitive frequency, or with a lot of difficult musical content or concerns about room excitations, without even really considering the filtering aspect, etc... Observing here at a frequency like 80, 85, 90, or 95 remains a relevant observation window... and easy.
Optimizing at such a fixed frequency is not such a reductive approach.
Optimizing at such a fixed frequency is not such a reductive approach.
 
canard said:
We can approach this differently... Observing at a sensitive frequency, or with a lot of difficult musical content or concerns about room excitations, without even really considering the filtering aspect, etc... Observing here at a frequency like 80, 85, 90, or 95 remains a relevant observation window... and easy.
Optimizing at such a fixed frequency is not such a reductive approach.
Click to expand...
Since using the correct delay does maximise the amplitude at all affected frequencies maybe choosing a single frequency and adjusting the delay to achieve the maximum amplitude would work.
 
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