Optimal line out level for WiiM Ultra + Audiophonics MPA-S250NC?

[Fralle]

No, if the listening level is fine, stay there.

When I said earlier that 22w are within the norm you have to put this into relation with the speaker impedance.
So now 11w are fine.

Thank you kindly! It is definitely enough for me. Kind of says something about how something about how excessively powerful these class d amplifiers actually are if 11w is more than enough

 

[Aquaman]

Thank you kindly! It is definitely enough for me. Kind of says something about how something about how excessively powerful these class d amplifiers actually are if 11w is more than enough

Well you must also keep an eye on the non-linearity of speaker impedances. A dip especially in the bass region and easily double the required output.
Also there is some source material for which you really need to crank up the volume.

And with your settings you are not limiting your amp‘s power, only the request for it. When more power is required the speakers will draw them and your amp can deliver.

Also, I cannot say why or what is happening physically, I do find that ‚exessive‘ power helps with bass control, even though it may not be need mathematically. It‘s a mystery.

 

[pieterv1]

So, what’s the general consensus among those who’ve actually tested both?

Best not to overthink it, is my suggestion!

With older amps with sensitive inputs, it is actually recommended to keep it at a lower value - to avoid distortion. With modern amps like your Hypex unit, you may set it to a lower value if preferred. No matter if you're using 500mv or 2v rms, if you then adjust the volume for the same listening level with your amp, you'll end up with the same signal-to-noise ratio.

The benefit of setting the line out level to 2v rms is that the volume increments will be higher, so you'll need less clicks or presses on the remote to make changes. The risk is that it will be very loud if you set it to 100% by accident

The 500mv rms setting will allow you to make more precise adjustments, with lower max volume. If you find the volume control to be a bit slow, there's the option to change the volume control resolution with the "Knob volume Step" setting in the WiiM Home app.