The Yamaha Natural Sound GE-30 Stereo Graphic Equalizer is a vintage audio unit manufactured in Japan in 1987. It features 10 channels for both left and right outputs, with a control range of +/- 12dB. The unit has 2 RCA line inputs, RCA recording in and out, and stereo L/R RCA audio inputs. It also has stereo L/R RCA and record RCA in and out audio outputs.

This EQ has been tested and it is working perfectly.