Does price make a difference to sound quality?
A sound bar is a middle-of-the-road option if you want to improve the sound of your TV but not fork out for a home theatre system.
Sound bars trick your ears into believing that sound is coming from all around you, eliminating the need for annoying speakers and cables. The speakers are angled so that the sound will bounce off the walls of the room and create a virtual “surround sound” environment.
Obviously the effect won’t be as good as what you’d get from a real home-theatre system. However, the sound’s much better than from a TV by itself.