The Pioneer SX-5560 is an integrated stereo receiver that was introduced in the late 1970s. It features a robust design with a metal chassis and wooden side panels, embodying the aesthetic common to receivers of that era. The SX-5560 is equipped with a power output of approximately 70 watts per channel into 8 ohms, making it capable of driving a variety of speakers effectively. The receiver has a frequency response range typically from 20 Hz to 20 kHz, ensuring accurate reproduction of audio signals across the audible spectrum. It includes multiple input options, such as phono, AUX, and tape inputs, providing versatility for connecting different audio sources. Additionally, the SX-5560 features a built-in FM/AM tuner with a signal strength meter and dial for tuning in radio stations. For sound customization, it offers bass and treble controls, along with a loudness switch to enhance low-frequency performance at lower volumes. Overall, the Pioneer SX-5560 is characterized by its solid construction, reliable performance, and the rich sound it provides.