The Rotel RX-400 A is an integrated stereo receiver that combines both amplification and tuner functions, making it a versatile addition to any audio setup. It is designed to deliver high-quality sound and supports a range of inputs for connecting various audio sources. Its build quality reflects Rotel's commitment to audio performance, featuring a robust chassis that minimizes resonance. The RX-400 A offers multiple power outputs, allowing it to drive a variety of speakers effectively. Users appreciate its warm sound, providing a rich listening experience whether for music, movies, or radio. The receiver typically includes features like tone controls, a headphone output, and several line-level inputs. Additionally, it often has FM and AM tuning capabilities, enhancing its utility in a home audio system.