Thats great feedback - so prologic sound not best but pretty good on the 861 still.

I am confused what you mean by EDID on the black box comment can you explain that one to me please

Thanks again for this useful info

861v4 LPSU, HD621, Bryston 9BSST
KEF Reference 3 and 2c, 2 X SVS SB13 ULTRA
Audio PC: JPLay, LPSU, JCAT, PPA Studio
Cables XLO Limited, Unlimited Edition and Signature
Sony VW500 Isotek Titan, DIY Mains and Clean Signal Earth Solution