Equalizer SG-9.

Tested, Works

However, Two buttons: "Tape" & "Attenuator -3db" don't stay on when pressed (video). When pressed and held, they still work; there might be issues with the spring or latch inside, I'm not sure.

All other functions work fine.

https://youtu.be/Byeik52vi0U?si=CwKO_qcRw2hHJ7O1

Carefully packaged to ensure safe delivery to the recipient.