My WiiM Amp tests
- Thread starter onlyoneme
- Start date
Then for example the 3rd harmonic of 25 Hz and the 2nd of 37.5 Hz will be still in the range easily.
If I lower the subwoofer volume level on my WiiM amp and increase the volume of the subwoofer, will it have less effect?
(Of course, I hope the WiiM team solves this problem.)
You can see that here
Distortions are fine up to -15 dBFS, then it starts to grow rapidly.
Thank you
That means in most setups (at normal listening levels) the distortion of the sub out should not be audible?
I would say so. We usually listen within the range of just a few watts.
Looks like the number or reports about whining/humming noise of the Amp increases. It's obviously not an issue of just my unit, it's something much more common. Pity as I was assured that it has been resolved and will not happen with production units.
Yes, and it seems more people are reporting it on the ASR forum instead of here on the WiiM forum.
Yes, I meant these ones mainly.
Steve Woodhouse
Major Contributor
- Joined
- Aug 11, 2023
- Messages
- 582
I hope they get this sorted.
It’d be a real shame if an otherwise superb product was spoiled by one, presumably easily-fixable, issue.
It’d be a real shame if an otherwise superb product was spoiled by one, presumably easily-fixable, issue.
It lasted long for me giving another statement here, but may be it is important.
There were too many things I simply didn't know. For example if my test sample was a pre production one and if this issue will be corrected before the delivery of the Amp or if my sample was just a Monday exemplar, so I decided the position "knowing nothing is good enough" as the best one for me.
As I get "compensations" for those looking and listening I solely reported it to the ordering party. But as I wrote above I feel it important.
So this is nothing against the Amp. Simply for security!
- I have no intention, no need and no usage for a product like the WiiM Amp.
- Nevertheless I was asked (not by WiiM!) to give my impressions.
- I experienced a behavior of the item which is a no-go for me and gave the amp back.
- Because I wanted not finding myself between WiiM, users and my dealer I've stopped further explanations.
- Living in Germany I know our power "delivery" system is different to other countries. So all is written for this situation.
There were too many things I simply didn't know. For example if my test sample was a pre production one and if this issue will be corrected before the delivery of the Amp or if my sample was just a Monday exemplar, so I decided the position "knowing nothing is good enough" as the best one for me.
As I get "compensations" for those looking and listening I solely reported it to the ordering party. But as I wrote above I feel it important.
So this is nothing against the Amp. Simply for security!
- Joined
- Nov 6, 2022
- Messages
- 697
Hi Team,
Thank you for your valuable feedback. Here are some updates:
Power Consumption Issue: The recent firmware had a bug leading to higher power consumption. We've identified the cause and will release an update next week. The new version will reduce idle mode power consumption to about 3W.
Humming Noise: A very small number of units from our first manufacturing batch exhibit a low humming noise due to the power transformer. This issue has been resolved in subsequent batches. If your unit is affected, please contact us by sending us a feedback ticket.
Your ongoing support is greatly appreciated.
Thank you for your valuable feedback. Here are some updates:
Power Consumption Issue: The recent firmware had a bug leading to higher power consumption. We've identified the cause and will release an update next week. The new version will reduce idle mode power consumption to about 3W.
Humming Noise: A very small number of units from our first manufacturing batch exhibit a low humming noise due to the power transformer. This issue has been resolved in subsequent batches. If your unit is affected, please contact us by sending us a feedback ticket.
Your ongoing support is greatly appreciated.
JohnnyAbbati
Member
- Joined
- Nov 25, 2023
- Messages
- 13
Thank you very much @WiiM Support for your transparency! This ecourages me to trust in your product support 
Steve Woodhouse
Major Contributor
- Joined
- Aug 11, 2023
- Messages
- 582
Hi WiiM.
This product has only just arrived Europe.
Can you confirm whether Amazon UK’s allocation may be affected, or are we safe to order from them?
Many thanks.
Brantome
Moderator
I’d go for it - from WiiM’s statement not all units in that first batch were impacted and if your order turns out to be affected, raise a ticket and they’ll sort it out.
Could this be related to
"Turning off an HDMI-connected Samsung ‘The Frame’ TV shuts off sound to the loudspeakers (as we’d expect) but a low-level randomised ‘put-put-put’ sound (noise interference?) continues to spill from the KEF KC62 subwoofer. I have to switch the WiiM AMP over to another input to make it stop...This subwoofer ‘noise interference’ also shows up sometimes – but not always – after having used the TOSLINK input." from
https://darko.audio/2023/11/wiim-amp-review-flying-high-on-value-for-money/
It might be related I think.
Was this fixed by the first firmware update?
WiiM Amp Firmware Release Note
This firmware update is being rolled out in stages, with devices updating sequentially over the next few days. For a list of known issues currently being addressed, please refer to the provided link. Our team is diligently working to resolve...
faq.wiimhome.com
