Sub out question

[slartibartfast]

Yes. But this is about using digital outs to an external DAC.

Yes but you can still control the volume from the Ultra with an external DAC.

 

[laxcoach47]

I have an external USB DAC with a Sub coming from the Ultra and also have the sub slider to YES. What happens? Does the DAC only get the frequencies above the crossover? Or does the DAC get the full 20-20k?

And I have the line out wired to an external headphones. And if I switch outputs from USB out to LINE OUT (my headphone amp), the sub still is active. I suppose on my wishlist is the ability to have the sub yes/no for each output.

I have two other options for the sub to work around the above issue.
1) I can put low level rca L+R to the sub and have the sub control crossover,.
2) I have a sub out on my amp although there is no crossover control....I think it is a fixed 80Hz

If I do either of the above, do I choose sub=NO in the Ultra?

Why do you need an external DAC? The DAC in the ultra is excellent. I don’t think you would hear any significant difference between the two.