An AV 리시버 (Audio-Video Receiver) is a device that combines audio and video components to enhance home entertainment systems. It acts as a central hub, allowing users to connect various devices like TVs, Blu-ray players, and gaming consoles. The AV receiver processes audio and video signals, delivering high-quality sound and visuals to speakers and displays. In addition to improving sound and picture quality, AV receivers often include features like surround sound processing, streaming services, and multi-room audio. They can support various audio formats and provide connectivity options such as HDMI and Bluetooth, making them versatile for modern entertainment needs.