WiiM Ultra RoomFit With External DAC?

Tunnelsnakes

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Joined
Feb 15, 2026
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Hello,

My question is: if I decided to add an external DAC to the WiiM Ultra via USB out, with the DAC set to "DAC mode" (fixed 100% volume), and then start Roomfit, would it know how loud the pink noise should be as to not blow out the speakers, or do I actually have to manually adjust the digital volume knob on the WiiM Ultra prior to running the room correction? Just want to be 100% sure so I don't damage any audio equipment. Currently running monoblock amps with no volume control adjustments to it either, so all the volume adjustments depends on the WiiM Ultra.
 
Hello,

My question is: if I decided to add an external DAC to the WiiM Ultra via USB out, with the DAC set to "DAC mode" (fixed 100% volume), and then start Roomfit, would it know how loud the pink noise should be as to not blow out the speakers, or do I actually have to manually adjust the digital volume knob on the WiiM Ultra prior to running the room correction? Just want to be 100% sure so I don't damage any audio equipment. Currently running monoblock amps with no volume control adjustments to it either, so all the volume adjustments depends on the WiiM Ultra.
The WiiM volume control also work on the USB output. So just set the WiiM volume to your normal listening volume before running the RoomFit.
 
Welcome.

Because I'm untrusting, I set my external dacs to variable output such that 100% wiim volume is very loud, but not blow your speakers loud.
And now I'm off to listen to Rock on the Radio by Firehouse.
🧑‍🎤
"
Like thunder, like dynamite
You know I'm gonna blow my speakers up tonight
"
 
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