Sony has created the SEQ-711 Electronic Equalizer for your system. Features include a 7 + 7 Band Electronic Equalizer, 5 Factory and 10 User Preset Equalization Curves, Center Frequencies at 63, 160 and 400Hz, 1k, 2.5k, 6.3k and 16kHz, a Fluorescent Spectrum Analyzer Display, and a Cursor Control System.