A DAC, or Digital-to-Analog Converter, is an electronic device that converts digital signals into analog signals. This process is essential for playing digital audio files, as most speakers and headphones require analog signals to produce sound. DACs are commonly found in devices like smartphones, computers, and audio equipment. DACs can vary in quality and complexity, affecting the sound output. Higher-quality DACs can provide clearer and more detailed audio, making them popular among audiophiles. They can be standalone devices or integrated into other electronics, such as audio interfaces and music players.