WiiM Amp Pro Firmware v5.2.726630 Update - Aug 18, 2025

Please review the WiiM Amp Pro 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.

5.2.726630 (In Progress)​

Release date:

8 / 18 / 2025

What's New:

1. Room Correction & EQ Integration: Room Correction and EQ now work together to provide an optimized listening experience. Learn More
2. Stabilized Wi-Fi Connection: Enhanced connection reliability, especially for mesh network environments.
3. Amazon Music: Bitrate information is now displayed when streaming Amazon Music Prime.
4. Sub Pro Intergartion: Improved pairing experience and overall functionality when using the Sub Pro.
5. YouTube Music: Native, seamless streaming support. (requires the upcoming app version 3.3.1).
6. Soundtrack SDK Upgrade: Under-the-hood improvements for a smoother, more consistent listening experience.

Bug Fixes:

1. Alarm Fixes:
   • Resolved an issue where weekly alarms occasionally failed to trigger.
   • Fixed a bug where only the default tone played for Pandora alarm.
2. Dolby Audio Fixes:
   • Fixed no-sound issues when playing Dolby audio in multiroom setups.
   • Corrected volume balance behavior for Dolby audio.
   • Corrected low volume when playing Dolby Digital content.
3. USB Output Fixes:
   • Resolved no-sound issues after reconnecting a USB DAC device when using Google Cast, TIDAL Connect, Spotify Connect, or Qobuz Connect.
   • Fixed audio stuttering when playing at 44.1kHz or 48kHz sample rates.
4. Playing Status: Corrected the playback status indicator when no music is playing.
5. Qobuz: Now displays the correct artist name in the app during playback.
6. Bluetooth Output: Fixed a no-audio issue after switching outputs.
7. NAS & USB Playback: Playback now correctly restarts from the beginning after the last track finishes.
8. Playback Speed: Resolved rare cases where songs played at accelerated speed.

 

[slartibartfast]

That's why you on a wiim amp Pro have RoomFit settings (they have thought about just everything you could want,need)


View attachment 26381

The one thing they haven't thought about is reducing the gain to allow positive EQ without distortion. Why don't you believe this simple fact? Some of us have been messing around with RoomFit for months not just a few days.

 

[harkpabst]

Think one good target curve no eq, is better then having to enable eq after a "flat" target curve

What makes you think so? I don't agree.

My speakers have 40% higher excursion than similar sized speakers and can handle 150 watt, a wiim amp PRO is not to much

The Signature 5 are still very tiny speakers and they will distort at some point, the more the higher the excursion is. And not just in the bass, but even more so in the midrange.

That's why you on a wiim amp Pro have RoomFit settings (they have thought about just everything you could want,need)

If you don't enable "Non-Boost Mode" (and it's not enabled according to your screenshot) there can be distortion. Not distortion of the power amp section, but much more critical distortion in the digital domain. The power amp will cleanly amplify the distorted signal, which cannot undo the distortion that already happened.

 

[gasolin75]

Even bigger and more expensive speakers distort (that's why big live music events have so many speakers only playing around 100-200 watt, to avoid distortion)

The challenge is, if you can hear distortion or your annoyed by it, if theres is any noticeable distortion

The harmonic distortion can be a problem at 86 db and is often alot higher at 96db

If you would have speaker that have no distortion at 96db in a big room or just with alot of bass

You would need very big floorstand speakes, alot of bookshelf speakers or very special bookshelf speakers

Use your speakers and listen to them at high levels, forget that all speakers distort at high level, if it sound good at your prefered max levels your fine, if going for super loud and distortion free you need something very special,especially if you only have room for bookshelfs speakers

ELAC DB63 Bookshelf Speaker Review

Kanto YU4 Speaker

www.erinsaudiocorner.com

KEF Q3 META Bookshelf Speaker Review

KEF Q3 META

www.erinsaudiocorner.com

The 2 jbl's do it really good but are big and expensive

JBL M2 Master Reference Monitor

JBL M2 Master Reference Monitor

www.erinsaudiocorner.com

JBL 4367 Studio Monitor Speaker Review

JBL 4367 Review

www.erinsaudiocorner.com

My speaker can handle what power my amp has

This song on the Harman target curve is a super challenge at high volume with a wiim amp PRO
Harman target curve actually sounds like i have a subwoofer (it's not on), crazy how much bass they play at high levels but theers is some noise, port noise,distortion or both, it's also very exterme bass and loud when i notice port noise,distortion.

B&K is what i use atm

If someone what a challenge ? This song aon harman taget curve close to max power from the amp (im not finshed trying roomcorrection, haven't used my sub, yet)

 

[harkpabst]

Well ... yes ...