Interesting that the Silbertone room at the Munich Hi end show is one of the biggest draws considering the variety of speakers they have displayed are 70+ years old. Curious that the Vox Olympians which are also well renowned are based on The Vitavox Oracle design of the 1960's. Fascinating that the Shindo Latour (Their top of the line speaker) is based on the UK 1957 Westrex Acoustilens. The resurgence of field coil speakers in general implies speaker design went off piste more due to manufacturing costs than pleasing sound. Today manufacturing methods (CNC) are much improved (See GIP). It is true the source material available when Western electric were producing their cinema systems was no where near the quality of today's recordings, however the basic principals they employed are being recognized by many as superior. The fact that huge horns are not domestically practical for many simply suggests a lack of commitment.