I have a Soundblaster X-fi Titanium installed on my PC with input/output via a Yamaha MG82cx mixer and connected to a pair of Lsi7 via an old Sony receiver. However, I don't consider the PC hardware nor Windows environment good for serious music listening becasue they are not stable and there are electrical noises from time to time. Things like harddisk, fans, power supply and other devices on the same power cord can all contribute noises. Drivers and system updates can mess up with the soundcard and music software as well.
As shown on my signature, I use a Saffire unit to feed into a pair of Focal monitors without a need for a pre or an amp. I can also do the same via the USB DAC interface on the SC-68 to enjoy the other Lsi speakers. Anything that I can play on my laptop can go into either system.
I run jRiver on all the laptop and PC at home and I have all my digital music centrally shared on my main PC. JRiver has so many features. Via DLNA, I can choose any music on SC-68 or I can make my choice on jRiver and play it out to SC-68. Either way, it's all done via the wireless network. I have found DLNA a very convenient way to connect my laptop/PC wirelessly to SC-68 for digital music listening.
Besides DLNA and USB DAC, I like Spotify very much. There are so many selections avaialble, and I don't need to listen to just what I own anymore. So my laptop is either connected to the Focal or to Sc-68 most of the time, but if not, I'd just play via DLNA over wireless.