A:AnswerUpgrade to the Insignia™ - Soundbar with 39-Watt Digital Amplifier - Black Model: NS-SB316. You can connect a subwoofer to it, cable not included.
A:AnswerHello there Alex, this device is covered under 1 year of manufacturer's warranty to have this checked by your local Geek Squad, by just presenting the Best Buy receipt. -Omar S. | Insignia Products Support.