The Unofficial LS3/5a Support Site: 

Mark Hennessy’s page on the original Rogers and BBC Loudspeakers: 

Mark Hennessy’s page on other Rogers models, which has a history of the LS3/6 design:

HiFi Unlimited’s visit to see the 001/002 pair of LS3/5as: 

Stereophile’s 1977 review of the BBC LS3/5a by J Gordon Holt: 

“The design of the miniture monitoring loudspeaker type LS3/5a” - BBC Paper: 

BBC Research Department Reports Archive: 

Falcon Acoustics (supplier of OEM spec LS3/5a parts and OEM repair service):