This is my first post. I will try to make it brief. My current setup is Denon DP300f turntable into a Pioneer SX-315 receiver into 2 Fluance SX-6 speakers. So the SX-315 is a 5.1 system, but I only have the 2 Fluance speakers connected. I am running the SX-315 in stereo mode. Which to my understanding makes it a 2.1 system. I currently am not running a subwoofer. Does this create any problems? I have the subwoofer that came with the pioneer receiver. Should I connect it? Does that cause any problems? Thanks.