Question: what is the difference between 2.1 and 5.1 sound bar?
Answer: a 5.1 system has 5 speakers including a front left and right and a front center speaker. It also includes rear left and right speakers plus a subwoofer for a surround sound experience. A 2.1 system is just the Left and Right channel in the front and a subwoofer. 2.1 is just the soundbar and/or subwoofer.