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Sound over coax is strange. What source are you planning to use?
We moved into this house last year. These speakers are just sitting here and the connector had a faceplate over it. Not sure if that means it too old to even hook up and the last owners gave up or if they just weren't resourceful enough?
I cannot upload the pics for some reason - I saved to PDF maybe I can later? Will try. The connector is a COAX cable with a male adapter on it?? so not sure how that works since it doesn't have a typical speaker cables (red and black).
Small house, only 4 speakers in one great room but they are far enough apart it could be helpful to be able to turn off on set so worth having a 2-zone set up.
Thank you for your help in advance! (if I figure how to upload pics... stay tuned)