Keith Saunders:
Besides the very large number of software updates which effected both versions
and the introduction of "Adaptive Sound Technology" ...
The introduction of "Adaptive Sound Technology" required a substantial change in
the hardware of the Dolby Surround Module (DSM)
- Mk1s must be retrofitted with a new DSM MK2 module and then the SW has to be
updated to offer "Adaptive Sound Technology"
- Mk2s are already equipped with the new DSM MK 2 module - and may/will need an
update to use "Adaptive Sound Technology"
- BeoVision 7-40 MK III/TV Type 9370-9384,9398 9456-9471 will need the DSM Mk2
hardware upgrade + SW update for using AST
- BeoVision 7-55 Type 9479-9495 & BeoVision 7-40 MK IV Type 9439-9455 (or newer)
will need just a SW update for using AST