Setting up home audio with DAC

hi guys , iv been scrolling the threads etc and wanted to just confirm i have set up my DAC  correctly. It is a CA dac magic ( classic) , playing through usb with foobar , i then click play with wasapi in foobar 200, - do i need to change anything else in the system settings does any one have any other tips ?

secondly i have an xbox hooked to the tv , and optical from the tv to the dac , is it worth getting another optical cable and going from xbox straight to DAC ?


thanks