The Arcam rDAC is a digital-to-analog converter (DAC) designed to enhance the sound quality of digital audio sources. It features multiple inputs including USB, optical, and coaxial connections, allowing it to connect to various devices such as computers, CD players, or set-top boxes. The rDAC uses high-quality components and employs Arcam's proprietary audio processing technology to deliver accurate and detailed audio reproduction. It also has a built-in headphone amplifier for direct headphone connection. The device is known for its excellent sound performance and versatility in audio setups.