Thank you for your advice
I have not always been an optical fan on prior equipment owned (vs Cu) but this DTS digital input option seems the least disruptive keeping Sky, DVD sources etc into Cyrus processor before a single set of pre-out analogue connections into an existing integrated 2-ch integrated + a 3-ch power amp for the Center+Rears.
System is a bit of a mongrel of UK brands and 2nd hand pieces from Cyrus/Myryad/Proac/Mission/Linn but I like it.
An analogue out option from BD would disable sound for other A/V sources in my current setup or require analogue switches or replugging. Not enough inputs for more analogue feeds.
I have been broadly happy with the DTS performance from DVD on the Cyrus processor though its bass management is basic and there are threads on this re DTS. Just as well the subs are fairly adjustable.
I am fishing for experiences good or bad with the AV8 and particular blu-ray players - the cyrus can sulk and "automute" if there's something it doesn't like about an inbound digital signal.