Sony - SEQ-D707 Stereo graphic equalizer

The Sony SEQ-D707 is a digital graphic equalizer that was part of the high-end Sony LBT-D707 component system from 1992. It features 10 preset equalizer curves and 5 freely programmable user settings, so the sound can be adjusted completely to your own taste. In addition, the SEQ-D707 offers a spectrum analyzer, the ability to record the chosen equalizer settings onto cassette, and 3 digital surround/delay effects for a more spacious playback.

With a signal-to-noise ratio of more than 90 dB, the SEQ-D707 delivers solid audio performance and forms a characteristic part of Sony's early-1990s MIDI hi-fi systems.