Are your speakers passive or active with a S/PDIF input?
EDIT: Just a quick look on the logitech site and they are mostly PC type speakers systems. Which are active with analog inputs. If so then the answer is NO.
You need 3 things go from a DTS/DD stream to audio at the loudspeaker and you (may) only have 1.
1) DTS/DD decoder
2) D/A converter
3) Amp (which may be built into your speakers)
Last edited by William; 06-23-2014 at 10:28 AM.