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SMSL PO 100 pro not being read by Wiim Ultra

ohskigod

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Joined
Apr 19, 2025
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I wanted to try the SMSL PO100 Pro I use between my Mac and my Geshelli Labs J2 (without USB) to run between my Wiim Ultra and Topping E70 velvet to see if there was a difference.

Seems the Wiim Ultra will not read my SMSL po100 Pro.

Any ideas? I know this sounds stupid and I apologize in advance
 
You mean WiiM->USB->PO100 and your WiiM fails to recognize the USB device?

Not sure what the issue might be (try another USB cable just to be sure).

The WiiM Community or support ticket via the WiiM App would likely be a better place.

An if all else fails, you can connect the two via SPDIF instead.
 
I just tried the following:

WiiM Ultra --> SMSL PO100 2024 --> KEF LS60.

It works. I am listening to it now.

When I plugged the SMSL PO100 2024 into my WiiM Ultra a pop-up window came up on the Ultra's display asking me to confirm to use that via the USB output. I selected "Yes".
 
Curious, just tested with PO100 and PO100AK, both correctly detected.
 
Personally, I would just run the WiiM Ultra to the DAC without the PO100. Not that I did a blind comparison, but I don't hear any difference between the two setups in my system. The reason I use the PO100 is to go between my Raspberry Pi and LS60s.
 
I wanted to try the SMSL PO100 Pro I use between my Mac and my Geshelli Labs J2 (without USB) to run between my Wiim Ultra and Topping E70 velvet to see if there was a difference.

Seems the Wiim Ultra will not read my SMSL po100 Pro.

Any ideas? I know this sounds stupid and I apologize in advance
Did you check the UAC setting on the PO100 Pro? It has UAC 1 and UAC 2. Both the Topping and the SMSL have the same model USB chip, so if the Wiim sees the Topping it should see the PO100 too.
 
Did you check the UAC setting on the PO100 Pro? It has UAC 1 and UAC 2. Both the Topping and the SMSL have the same model USB chip, so if the Wiim sees the Topping it should see the PO100 too.
Yeah. I tried both.
 

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