Help with interconnects?

Okay, I think I have a viable question. My headphone amp has 3 digital inputs, so I guess I can input my digital sources directly into my headphone amp for headphone listening. 

Now, here goes the rookie question. Can I utilize different outputs from these same digital sources for my speaker listening? Whether it be through my dac or directly to my preamp? Thank you, I don't know exactly what I am able to do here or if this is the best way to go

Yes you can utilize all the various outputs at the same time, no problem. So say you have a SPDIF and a Toslink out, Yes you can use both to different things. A XLR and RCA pairs? Yes both can be used. Mix them no problem.

Okay. Man, this is difficult to figure out for a newbie like me...a maze of inputs, outputs and interconnects!

Don’t let the interconnect wiring freak you out. Only the truly OCD-challenged folks tend to dressing their cables in a tidy bunch. 

Good point. Although, there seems to be a consensus that power cables can interfere with interconnects. But, my problem is just figuring out the best way to connect all my components for best performance and SQ