The Pioneer GR-470 is a graphic equalizer that allows users to adjust the audio output of their audio systems in real-time. It features multiple frequency bands, allowing for precise control over the sound spectrum. The device is designed to enhance audio playback by compensating for room acoustics or personal listening preferences. The GR-470 typically has a sleek design with LED indicators for visual feedback of the equalization settings. Key specifications include a 10-band equalization adjustment, up to ±12 dB gain or cut per band, and a total harmonic distortion (THD) specification that ensures minimal signal degradation. It supports both stereo and mono signal processing and is often equipped with a bypass switch for direct source listening without the equalizer's effect. The unit can be integrated with various audio systems, from home theaters to professional sound setups, making it versatile for different applications.