torstai 12. huhtikuuta 2018 2.16.09 UTC+3 Dave Plowman (News) kirjoitti:

Interesting point. I've never worked in radio, and dunno if the designers
made use of any of the facilities there. Apart from getting high quality
recordings of whatever they wanted, of course. The departments who
designed these speakers were both based well away from the studio centres.
I don't remember any prototype speakers doing the rounds in TV.

By that time commercial radio was well established so there would
have been plenty of choice if a speaker manufacturer wanted to set
up trials in a radio facility.

Traditionally, loudspeaker manufacturers had close connections with
record companies and independent music studios, so there would have been
no shortage of top notch facilities with trained ears.

In addition, speakers manufacturers had close ties with academic
institutions. The Arthur Radford/Dr Arthur Bailey/
Surrey University/Decca Record Company think-tank is a good example.

Before the LS3/5a appeared, there was a speaker made by Bowers and Wilkins,
the DM2 IIRC, which was used widely in studios as a domestic reference
speaker, and also in smaller listening rooms and editing facilities. Many
expected that this would be chosen by the BBC. It might have been a better
option:-)

Iain