WiiM Amp Ultra: Crackling of the speakers when turning on and off

[cooky560]

My Audiolab 8000A has a relay to disconnect the speakers at power on. The headphone output is a different story and pops loudly

That might be why my 80s amps don't pop, you turn them on and there's a distinct metallic click from somewhere inside the case ~4 to 11 seconds after turning it on, then you get sound.

 

[dankandi]

With my WAU at latest firmware, i been noticing the pop when ever it goes into/out of sleep or power down at mains, or even browsing WHA menus going into PEQ, Sub-out etc.

There is supposed to be anti-pop design, at least in their vibelink from this reviewer guides

https://www.sarte-audio.com/sites/default/files/manuales/WiiM%20Amp%20Ultra%20Reviewer%27s%20Guide.pdf

https://www.sarte-audio.com/sites/default/files/folletos/WiiM%20Vibelink%20Amp%20Reviewer%27s%20Guide.pptx_.pdf

 

[Wiimer]

With my WAU at latest firmware, i been noticing the pop when ever it goes into/out of sleep or power down at mains, or even browing WHA menu going into PEQ. etc.

There is supposed to be anti-pop design, at least in their vibelink from this reviewer guides

https://www.sarte-audio.com/sites/default/files/manuales/WiiM%20Amp%20Ultra%20Reviewer%27s%20Guide.pdf

https://www.sarte-audio.com/sites/default/files/folletos/WiiM%20Vibelink%20Amp%20Reviewer%27s%20Guide.pptx_.pdf

Based on the wording, I guess this feature primarily suppresses pop noise that occurs during sample rate or input switching, and is unrelated to pop noise during power (standby) on/off.

 

[Alexandr_2023]

Hi, i'm having the same problem with my Wiim Ultra and my Teufel Stereo M2 speakers.
But, I should point out, it doesn't happen all the time, but it does happen regularly.

How are your speakers connected to the Ultra? Optical or RCA?

 

[dankandi]

How are your speakers connected to the Ultra? Optical or RCA?

I am on optical too.

 

[dankandi]

Based on the wording, I guess this feature primarily suppresses pop noise that occurs during sample rate or input switching, and is unrelated to pop noise during power (standby) on/off.

I hope Wiim look into this though. The WAU is built around going into low power mode standby, always on. It cannot be good for the speakers or user's perspectives to constantly hear the pops.

 

[Alexandr_2023]

I am on optical too.

My Ultra works with Triangle active speakers. I tested it myself. There's a slight clicking sound (if connected via optical). But I only hear it when the volume on the active speakers is turned up high. This is normal.
If it's connected via the RCA, everything is fine. You can't hear anything.

 

[QuarryHunslet]

I hope Wiim look into this though. The WAU is built around going into low power mode standby, always on. It cannot be good for the speakers or user's perspectives to constantly hear the pops.

I have never had pops from my WiiM Amp Ultra, or Ultra/Vibelink combination, but I do get very quiet pops when bringing my Amp out of standby.

 

[chardo]

How are your speakers connected to the Ultra? Optical or RCA?

I tested both types of connections and the result is the same.

 

[PaintItBlack]

Since the last upgrade, I’ve noticed that the power-on pops are much louder, even when the volume is set to low levels. Also, when switching from the Speakers output to the USB output, there is a pop that is so loud it can be painful when using that output with my DAC/headphone amp. My workaround for the latter issue is to connect the headphones only after the pop, but sometimes I forget… and ouch!