Roger,
Perhaps my ears are getting old but I cannot distingush a sonic difference between the BV8:BL3 set-up and my other system consisting of BC2:BL9 when listening to music (the BV8:BL3 system is in "pmute" and the BV8 speakers are inactive), with the obvious exception of the base response. In video mode all speakers are active and I have found the BV8:BL3 audio to be very accurate and excellent for voice (conversation). Many systems "muddy up" the voice track and make it difficult for old people like me to understand what is being spoken. Not so for this system.
I look forward to the "new" B&O vibrationless subwoofer as an addition to the BV8:BL3 system. Bass response is the only deficiency.
Here is another pic with the cabinet closed: