Listening through loudspeakers - old school stereos

It already has some scratches cause my grandmother doesn’t see any value in anything tech related. Just trying to avoid more scratches.
Not interesting in selling, though, as this has sentimental value to me.

What’s that speaker company that starts with S? There is also i and e in there but I can’t think of the name. The company used to use manilla, which might actually be hemp. Most speakers today are made from petroleum, I wonder how that affects the sound. Tone Tubby makes hemp cone speakers, and are much cheaper than Polk or Klipsch.
Edit: Sensui - they made speaker cones / diaphrams out of hemp and manilla or similar natural fibers around the 60 / 70s. There isn’t much marketing about it.