With a subwoofer, you can enjoy extra deep bass with your favorite movie or series. This is a powerful speaker that produces only the deep and low tones, or bass. Add the subwoofer to your television, or go for a full home cinema experience and add it to your home cinema set. Do you value very low tones? Choose a subwoofer with a low frequency range, for example 10 or 20Hz. Go for an active subwoofer if you don't want to buy a separate amplifier. An amplifier is already built-in with this device.