slartibartfast
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Do we know where the TMP102 is situated? Presumably close to the amplifier chips. I normally find the CPU temp is lower than the TMP102 temp on the Amp.
WiiM Amp Ultra Users Experience
- Thread starter adias
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I don’t know where it’s located, but both temperature readings are usually fairly similar when the device has been on for a few hours.
slartibartfast
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I think the only time I have seen the TMP102 temp lower than the CPU temp is when the Amp is first powered on or in standby. I assumed the amplifier chips produced most of the temperature rise and the CPU temp rose with the internal temperature.
Seems about right. At idle since last night at about 21 C mine says "temperature_cpu": "44", "temperature_tmp102": "36".
Of course now that I've been monitoring, I haven't seen it too unreasonably warm after a couple hours of usage: "temperature_power_control": "1000", "temperature_cpu": "49", "temperature_tmp102": "52". Ambient temperature at 25C. I'll continue to monitor.
On a side note, what does temperature_power_control reference? I noticed it's always at 1000 but I'm not even sure of what it is measuring/configuring or the units.
On a side note, what does temperature_power_control reference? I noticed it's always at 1000 but I'm not even sure of what it is measuring/configuring or the units.
Just got my Ultra Amp.
Mainly used as audio from bedroom TV via HDMI ARC but also playing local files on USB drive.
Why does this run so warm in standby ?
Things that need to change !
1. Make the screen go even dimmer. I have on 1 for the brightness setting and in standby the screen is too bright. I'm using in clock mode to replace the LED clock I had next to it in the bedroom.
2. Add USB input and ability to browse files on main screen. This is currently only an option thru the app.
3. Unit should shut off or go to standby when TV power is off and not wait for the screen timeout. HDMI CEC off should be just that ! Also takes a while before audio comes on after TV powers up !
4. Some sort of ECO mode so the damn thing is not burning up power in standby.
5. Takes forever to scan the local music library. I have about 6000 songs spread amongst CD and Hires quality album directories & files. My Eversolo streamer in my main Hifi system takes 1/10th the time for the exact same files.
6. The connected USB drive is still powered when in standby.Again it s/b off.
At this price point, Wiim needs to step it up a bit from the cheapo, little streaming boxes.
Hopefully they will !!!
Mainly used as audio from bedroom TV via HDMI ARC but also playing local files on USB drive.
Why does this run so warm in standby ?
Things that need to change !
1. Make the screen go even dimmer. I have on 1 for the brightness setting and in standby the screen is too bright. I'm using in clock mode to replace the LED clock I had next to it in the bedroom.
2. Add USB input and ability to browse files on main screen. This is currently only an option thru the app.
3. Unit should shut off or go to standby when TV power is off and not wait for the screen timeout. HDMI CEC off should be just that ! Also takes a while before audio comes on after TV powers up !
4. Some sort of ECO mode so the damn thing is not burning up power in standby.
5. Takes forever to scan the local music library. I have about 6000 songs spread amongst CD and Hires quality album directories & files. My Eversolo streamer in my main Hifi system takes 1/10th the time for the exact same files.
6. The connected USB drive is still powered when in standby.Again it s/b off.
At this price point, Wiim needs to step it up a bit from the cheapo, little streaming boxes.
Hopefully they will !!!
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Welcome to the forum, hopefully your first post rant will not be a sign of things to come.
This sort of behaviour does not go down well here.
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I see no threat.
Do you use Wifi? It needs quite a bit of electronics to be ready for input.
1. I agree that brightness 1 could be darker.
2. I don't use USB so I cannot comment.
3. When I power off my Philips TV the Amp Ultra goes straight to standby and screen off. Settings? TV model? Its HDMI ARC by the way Not HDMI CEC.
4. Do you use Wifi? It needs quite a bit of electronics to be ready for input.
5. I don't use USB so I cannot comment. I use LMS running on a home server and Squeezelite and I very much recommend that solution to anybody all the time...
6. Maybe.
On your last unnumbered point I disagree.
Your first post comes across as somewhat strident. That really is not necessary.
By local you mean attached USB drive? Mine took 70 minutes in the background for >13000 tracks. What's your definition of forever?
If somebody wants that it must be a switchable option. The WiiM Amp Ultra implements a media server,.Which is accessible from any other DLNA endpoint in your network. Some use it like that on purpose.
Did you measure the power consumption in standby? I didn't, yet. Case temperature is 5-6⁰ C above ambient here in standby. That's fine with me.
OK! Just post it to me and I will measure it for you and check the temperature 🌡 
Hi guys, new user here. 
I got my WiiM Amp Ultra on Friday but I had bad luck getting a faulty unit. The left speaker output produces a lot of hissing noise regardless of the selected input. I tried connecting my right speaker to the left output resulting in the same hissing noise. So that unit will be sent back to Amazon on Monday. I ordered another one which I will get on Monday too (luckily because now they are out of Stock until July 21).
Since this is my first WiiM device I had the chance getting familiar with the App in the meantime over the weekend.
But what I can say already, it sounds amazing compared to my previous amp (Aiyima A80). I really like the possibilities finetuning the sound with the subwoofer settings and crossover for the main speakers and the EQ options. Can‘t wait to get the other one tomorrow (this time hopefully a non-faulty unit).
I got my WiiM Amp Ultra on Friday but I had bad luck getting a faulty unit. The left speaker output produces a lot of hissing noise regardless of the selected input. I tried connecting my right speaker to the left output resulting in the same hissing noise. So that unit will be sent back to Amazon on Monday. I ordered another one which I will get on Monday too (luckily because now they are out of Stock until July 21).
Since this is my first WiiM device I had the chance getting familiar with the App in the meantime over the weekend.
But what I can say already, it sounds amazing compared to my previous amp (Aiyima A80). I really like the possibilities finetuning the sound with the subwoofer settings and crossover for the main speakers and the EQ options. Can‘t wait to get the other one tomorrow (this time hopefully a non-faulty unit).
slartibartfast
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For the Vibelink 73W is the max power before clipping and 100W is at a particular THD so we'll into clipping.
Erin's Audio Corner has measured the WiiM Amp Ultra at 220 W into 4 ohm continuous, 1 kHz, 1% THD.
WiiM Amp Ultra Streaming Amplifier Review
WiiM Amp Ultra Streaming Amplifier Review
www.erinsaudiocorner.com
At 50 Hz the output power is still >= 200 W.
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Woody
Active member
Mine goes in to standby when TV shuts off. LG. Might be a setting in your TV or WiiM app.
In standby mine is not noticeably warm at all.
Did you let it to update when you set it up? I recall when I first received the WiiM Amp original it was pretty warm in standby and a firmware update fixed that.
I checked the temperature today in standby.
It was 6-7 deg C over ambient measured with a Fluke temp probe. WiiM is on an open shelf with nothing the the 5 sides.
This was with WiFi On and the USB SSD connected. Not a big deal, you just have to realize this thing is Never OFF.
The Arylic B50 it replaced was cold in standby (On was On and Off was Off).
As for HDMI CEC/ARC (CEC controls the power On/Off btw and must be ON for ARC to work), the CEC On/Off commands are not really turning the unit On/Off. If I set standby screen to off then the screen goes black with TV off. With the standby screen ON, the Wiim is really looking for audio input before it switches to the standby screen. For example, if I'm on my ROKU screen with nothing playing the Wiim will toggle to standby screen after the timeout. Again, you just have to realize this thing is never Off.
Switched over to an Ethernet connection so maybe the WiFi circuits shut down and less power dissipation ?
Sorry, it took about 15 minutes to scan all the tracks. I removed the USB drive and noticed it is creating a cache for all the artwork.
It is copying it (folder.jpg from each album) over to this cache directory for some strange reason ? Never seen a streamer (had a bunch) do that ?
My Eversolo updates the files on its internal SSD in just a couple minutes. others I have had were even faster.
Yes, this would be good. I will never use as a media server so an option to shut the USB power off in standby would be good.
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latest firmware was installed when I first connected yesterday.
However it does seem cooler today (see my other post about measurements).
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