SPDIF Out - Why 100% Volume?

[Arctia]

So I currently using the optical output on my soundcard to an external DAC. Everyone tells me I need to do 100% volume output. Is there a reason for that?

 

[FallenAngel]

Yes, so that you don't get digital volume attenuation.

 

[pompon]

Exactly. If you not at 100%, you will have less quality.
All time set the volume with your amp and not in windows.

 

[krmathis]

Yes. Eliminating loss of audio data...
Not that it will always be bit-perfect with the volume set at 100$, but it will never be bit-perfect with the volume set at 99.99%

 

[jisu]

I guess this applies to USB out as well?

I was thinking of getting the Musiland 02US, but it doesn't have a volume knob. What then?

Maybe I should just fork out and get the audio-gd compass...

 

[krmathis]

Quote:

Originally Posted by jisu /img/forum/go_quote.gif I was thinking of getting the Musiland 02US, but it doesn't have a volume knob. What then?

Three options:
1. Re-think and buy a different unit.
2. Use its RCA out to feed an amplifier with volume control.
3. Control volume at the transport level (computer or like).