I connected a PC to my home theater today. I noticed that the sound is not as good when im connected to it. I have it set up 5.1 and all, but if I play spotify for example on my PC you can barely hear the bass, while if I airplay the same song, it clearly sounds better. Im not sure what the issue is. Do I need a sound card for example? Im connected by HDMI to my gtx 760. Thank you for your help!