The Onkyo T-403 is a classic FM/AM stereo tuner designed for capturing radio broadcasts with clarity and precision. It features a robust linear control layout, offering users the ability to fine-tune their listening experience. The unit supports a wide frequency range to ensure access to various radio stations, while the digital display provides essential information such as frequency and station identification. Equipped with both mono and stereo output options, the T-403 can connect to various audio systems. It is built with select components for improved signal reception, reducing interference and enhancing sound quality. The tuner is also characterized by its durable construction, making it a reliable choice for audio enthusiasts seeking a dependable source component. Typical specifications include a frequency range of 87.5 to 108 MHz for FM and 530 to 1710 kHz for AM, along with sensitivity ratings that improve reception in challenging environments.