Sansui RA-500 Solid-State Reverberation Amplifier

The Sansui RA-500 is a vintage audio component designed to add adjustable reverberation and depth to your stereo system. Its built-in reverberation circuitry creates an echo-like effect, allowing you to customize your listening experience. Features include a continuously adjustable reverberation time, a distinctive multicolored illuminated indicator, and multiple tape connections for playback, recording, and tape-to-tape dubbing.

The RA-500 offers a frequency response of 20 Hz–30,000 Hz, less than 0.2% total harmonic distortion, and an adjustable reverberation time of 1.9–3.2 seconds. It has an input impedance greater than 200,000 ohms, a load impedance of 100,000 ohms, and a power consumption of 10 volt-amperes.