A customer of mine just purchased a house that has this installed throughout. Can't say I've ever seen it before. The Headend has (2) B&O 6 conductor cables spliced together with a special end that went to missing amp. Toning seems to go through wire but not spkr?
8 Rooms of audio.
Each room has VC and a B&O ML2 receiver thing and a pair of speakers. No equipment was left behind other than VC's, IR rcvr, and Spkrs. Can't even get speakers to tone.
If I just get home runs to all the VC's I think I can salvage some of his equipment, if not $$$$:)
Just trying to figure out how this system worked?