If you're looking to improve your TV's sound quality, you might be wondering if a sound bar has a built-in amplifier. The answer is yes, most sound bars have a built-in amplifier. This allows the sound bar to boost the audio signal from your TV before it reaches the speakers. This can result in clearer dialogue, deeper bass, and overall better sound quality. Some higher-end sound bars even have multiple amplifiers for different types of audio signals, which can further improve sound quality. So if you're looking to upgrade your TV's audio, a sound bar with a built-in amplifier is a good place to start.