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WiiM Ultra

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Petrushka said:
I think you will need an adapter for the mini-toslink. I have an Apple speaker with a dual purpose 1/8 inch connector.
Click to expand...
No need. Native cables exist:
71q8Y8eGUuL._AC_SL1500.jpg
 
ehabheikal said:
minidsp flex is significantly cheaper and has dirac option if u use dirac with cd quality not hires. i have flex and wiim pro. tried both room corrections but use dirac mainly for configurability as you can set bass and treble ends of fr.
one issue the wiim room correction does not do left and right seperatly now but i would not be suprised if they did in a future firmware upgrade.
Also wiim uses mobile mic not calibrated mic so it would not be able to be accurate but i also would not be suprised if this is addressed later.
Click to expand...
A review posted some post ago says Wiim Ultra got right and legft channel for RoomEQ...
 
sealpin said:
Just a quick info:
yesterday my WiiM ultra arrived and I integrated it into my setup, replacing a SONOS port.
Due to WiiM ultra lacking Airplay I added a WiiM mini for this.

My setup now looks like this:

Streaming Device: WiiM ultra + WiiM mini for Airplay, The mini is connected using optical interface to the ultra and is using the USB port from the ultra for power supply.
Volume Control and connection to the speakers: RME ADI-2 DAC fs connected via optical interface with the WiiM ultra
Speakers: Neumann KH750 + 2xKH310 connected to the RME.

My music is on my Synology NAS (approx, 40k files) different quality, from low end MP3 up to hires and flac files.
Setup of the WiiM ultra was a piece of cake. All works fine and I am happy to have the SONOS stuff kicked out (not because of the hardware, but because of the curently bad software).

Ok, I am using the DAC of the RME instead of the one in the WiiM, but the RME specs are good enough for me ;) and the RME has a better adaptive loudness function IMHO. Last but not least, it has XLR output, so I do not need to convert RCA unsymmetrical to XLR symmetrical.

I planned to go for the Eversolo DMP A8, but currently I see no reason for that step. Price wise my setup is quite attractive I guess.
Click to expand...
I have something similar. I have the Ultra USB out to an external DAC and Amp and I also have a Headphone amp on the line out.
For Airplay and Plex I have a Raspi 4 with Ropieee and an Allo hat which feeds optical to the Ultra.

My issue has been the sub. If I listen to the headphones with line out, the sub is still active. So I moved the sub to the amp (My Fosi amp has a sub out port) and now
when I do room correction, it doesn't seem to correct the sub correctly.

I'm still fiddlin' with the sub as I'm not sure everything is working correctly in the Ultra software with an external DAC or maybe it's me.
 
Dennis_FL said:
I have something similar. I have the Ultra USB out to an external DAC and Amp and I also have a Headphone amp on the line out.
For Airplay and Plex I have a Raspi 4 with Ropieee and an Allo hat which feeds optical to the Ultra.

My issue has been the sub. If I listen to the headphones with line out, the sub is still active. So I moved the sub to the amp (My Fosi amp has a sub out port) and now
when I do room correction, it doesn't seem to correct the sub correctly.

I'm still fiddlin' with the sub as I'm not sure everything is working correctly in the Ultra software with an external DAC or maybe it's me.
Click to expand...

I have similar, but different solution.

I use the Ultra for my speakers, and my old Mini into headphone amp/DAC for precisely the reasons you’ve given. As I had the Mini and headphone amp/DAC already, it’s cost me nothing.

The Fosi doesn’t have the bass management of the Ultra, that’s a big step backwards.
 
I'm impressed with the subwoofer management capabilities of the ultra. Setting the crossover accurately for 2.1 desktop is essential.

I'm very disappointed the sub can't be assigned to a single output. It runs when I switch to headphones, which requires me to have my svs remote handy. Not so handy.

I'm probably more disappointed that I don't think the sub scales volume properly with the stereo signal. I have to increase volume on the sub as I increase. It's fine for most listening, assuming few dynamic swings.

I love the ultra but sub management is meaningfully incomplete. Hopefully this is addressed with software.
 
Mort said:
I'm probably more disappointed that I don't think the sub scales volume properly with the stereo signal. I have to increase volume on the sub as I increase. It's fine for most listening, assuming few dynamic swings.

I love the ultra but sub management is meaningfully incomplete. Hopefully this is addressed with software.
Click to expand...
You mean by ear?
That's FR,the most important metric in audio,that should be the first thing done right.
Are you sure about it?Maybe something about the settings?
 
Is it? I'm not sure how. Happy to try.

Given that there will be different amps and speakers being connected, how does the ultra manage the relative volume anyway?
 
Sokel said:
You mean by ear?
That's FR,the most important metric in audio,that should be the first thing done right.
Are you sure about it?Maybe something about the settings?
Click to expand...
Yeah it's by ear. The sub volume is changing, but not enough.
 
Mort said:
Is it? I'm not sure how. Happy to try.

Given that there will be different amps and speakers being connected, how does the ultra manage the relative volume anyway?
Click to expand...
That's x-over job.
Ultra must output the defined voltage needed for both increasing and decreasing it with VC.
 
Wouldn't a high power high sensitivity system create more dB per volt? How would the ultra know and compensate for that?

I'm probably asking a dumb question.
 
I noticed a small bug. I hooked the Wiim Ultra up to the Loxjie A40 again. Set the Wiim to fixed volume since I control the volume with the Loxjie. Works great until the Wiim is powered off and then back on. The app shows it is still set to fixed volume, but the Ultra itself reverts back to variable volume.

Changing it in the app to normal and then back to fixed volume works. I tried it several times during the day and it happened consistently. The Ultra needs to save that setting locally or the app needs to resend it when the app connects.
 
Mort said:
I'm probably more disappointed that I don't think the sub scales volume properly with the stereo signal. I have to increase volume on the sub as I increase. It's fine for most listening, assuming few dynamic swings.

I love the ultra but sub management is meaningfully incomplete. Hopefully this is addressed with software.
Click to expand...
I can't say I notice same effect in my system, there's no perceivable change in system FR when I alter the system volume using Ultra.
 
Mort said:
Wouldn't a high power high sensitivity system create more dB per volt? How would the ultra know and compensate for that?

I'm probably asking a dumb question.
Click to expand...
And there is how you must configure the x-over properly by increasing of decreasing the gain of each of the two ways.
Example,say you want a flat FR from top to bottom and your sub is +3dB louder.
In x-over settings you must decrease Wiim's sub output by 3dB.Or whatever your target is.

But you must find a way to measure this things,sub's integration is a pain manually,you both have to adjust for FR and time,but doable.
 
Mort said:
Is it? I'm not sure how. Happy to try.
Click to expand...
Set the Crossover frequency to 60Hz in the App, then disconnect the speaker amp and subwoofer from the Ultra and play a 60Hz sine tone on loop (file attached below).

Probe the Main and Sub outputs with your multimeter set to V AC and note down the voltages of each, at different volumes.
81T417.png

Make a spreadsheet like this;
Volume​
Main Out [Vrms]​
Sub out [Vrms]​
Volume difference
[20*log10(Main out/Sub out)]
[dB]​
100​
2.03​
1.01​
6.03​
73​
1.37​
0.68​
6.03​
28​
0.23​
0.11​
6.03​

If the volume offset between Main and Sub out is consistent across multiple volumes, then your issue lies elsewhere.

Mort said:
Given that there will be different amps and speakers being connected, how does the ultra manage the relative volume anyway?
Click to expand...
You set the volume offset once in the App to account for the difference in sensitivity between Sub and Mains, and then the Ultra just preserves that offset no matter how loud or quiet you listen.

It's really quite foolproof.
 

Attachments

Last edited:
If you have both sub level adjustment in Ultra AND a gain control in the sub, which is the best approach to use? Set the sub to a lower volume, and then run your RC etc and make adjustments to sub level in the app, or whack the sub amp up and run it again that way? I'm presuming that so long as there is enough headroom in Ultra and likewise in the sub's amp it doesn't really matter...
 
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