Raudio chadwick speakers returns some relevant results.
http://www.stereo.net.au/forums/index.php?/topic/40792-austr...
> The Executive Monitor from Chadwick Audio Furnishings(NSW) was the top model in the Chadwick range and used a modified Etone245(300mm) unit in a rear vented transmission line enclosure with the Audax 160mm mid/range,25mm dome and an aluminium cone super tweeter. I have no idea how it compared to the imports,in the early 80,s,but many Australian designed speakers outshone the competition in performance and value at the top end of the market;unfortunately there was a cheap product area that supplied bulk stores and these inferior items still surface from time to time.A bit like the white van stuff .