PVossler@exua.exeter.ac.uk (06/07/91)
Following the discussion of the LS3/5a speakers can anyone point me in the direction of information on the BBC LS5-2 speaker systems. The speakers stand around twelve inches off the floor, utilise a bass-reflex design with 15" bass driver with roll-rubber surround. There are two hi- frequency drivers in each cabinet. The speakers are probably not an original pair as the tweeters are different, one cabinet has two hi-frequency drivers with a silver-painted paper or cloth diaphragms while the other cab has two different tweeters with diaphragms of differing appearance, one is obviously a resin impregnated material but the other is black but probably also made of the same material. I suspect the system is of quite old design as there is an illustration of a very similar looking speaker in an book on sound studio practise dating from the late sixties. What I am considering is 1) Replacing the tweeters (or the diaphragms if available ) to create a more closely matched mid-high frequency response. 2) Mounting mono power-amp blocks on the little shelves underneath (which have fittings for the old Quad multi-pin speaker connections). Any advice welcome especially regarding the availability of replacement parts or manufacturer.