It all dates back years. In the 80s, FM reception in this part of London
was poor. Meaning a portable radio etc simply didn't work well. So decided
on a high quality audio distribution system to every room - run on 10 pair
telephone cable.

You could then decide what final audio quality you wanted in each room by
the choice of amps and speakers.

Bathroom has ceiling speakers. Kitchen area (much used) LS3/5a.

Assuming listening to the same channel, no audio delay between rooms.
Unlike things digital. ;-)

LS3/5A - wow. A retro speaker with an intersting BBC history.
Used to cost a fortune on eBAY dependant on actual manufacturer or I
think supplied as a kit....



Yes some made kits, but the better ones were the 11 ohm Rogers ones
sometimes now going for over a grand on e-bay;!!


http://www.ls35a.com/

https://www.falconacoustics.co.uk/bb...3-5a-cabinets-
kits.html

http://www.stirlingbroadcast.net/

--
Tony Sayer


Man is least himself when he talks in his own person.

Give him a keyboard, and he will reveal himself.