Thanks guys! So even for a $160 bill, my system should barely make a dent in it considering that I pretty much use it whenever I'm in the apartment?
And kinda off topic: plug in heaters would take significantly less energy than a heating system, right? Especially considering that it'd only be heating the room I'm in (the living room and other bedroom is pretty much always empty).
And I THINK I'm paying $.08/KWH... My bill doesn't directly say it but it said my average KWH per day was 60 and average cost per day was $4.72... Logically (hopefully), $4.72 / 60KWH = $.08
Also, I looked at the back of the components or the manual:
Receiver: "Power Consumption 59W at Power On, idle; 1,000W at rated power output (7 channels driven)"
Subwoofer: "180 watts max power consumption" (the volume knob is at next to minimum if not at the first tick)
Speakers: I couldn't find a "power consumption" part but the closest is this from the manual: "40 to 150W @8 Ohms"