A digital-to-analog converter, also known as a DAC, is a device that converts the digital audio signal to an analog signal for amplification by a home stereo system or external headphones. Many digital-to-analog converters connect directly to a laptop or desktop computer system via a USB port to enhance the analog audio signal for further amplification. Dedicated external USB DACs aim replicate a balanced sound stage for professional and higher-end audio recording and mastering.
