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Headphone amplifiers are electronic devices specifically designed to enhance the audio signal from a source, such as a computer or smartphone, and deliver it to headphones with increased power and clarity. They are considered a type of computer peripheral due to their common use alongside computers and other digital devices. Headphone amps can improve sound quality by driving headphones more efficiently, reducing distortion and increasing dynamic range. While some amplifiers are integrated into the source device or headphones themselves, standalone models offer greater flexibility and performance for discerning listeners.