Sound is indeed spectacular in the old Numark mixers (PPD era).
Here's the 1975. Still very fresh and really love playing with the sampler. Quality is very, very far from the Gemini. I also applied top clear coat on the face plate to preserve the markings.
https://i.imgur.com/EhgIa7Ql.jpg
https://i.imgur.com/f9CGSA4l.jpg
https://i.imgur.com/u3bNnoMl.jpg
https://i.imgur.com/MHEndVil.jpg