HD621 can pass-through DD/DTS coming in via HDMI to be decoded in the connected processor. I use his feature in my G68ADV.

But the you don't have any advantage of the HD621, it just separates audio from video, no apodizing.


Regards, Erik
Meridian G68ADV, HD621 and vMSR
Dune HD Max, SB Touch, VU+ Duo2, Sony CDP-X303ES, Denon DP-59L, Goldring 1042, Harmony Design V9
Advantage P1, Anthem MCA 3, Dynamic Precision PA4000H, NUC HTPC, ATV 4K
Revel Performa3 F208 and C208, Mirage OM-R2, IB sub 2x18"
Sony VPL-VW95ES, Lumagen Mini3D, Stewart ST130G3 2.35:1 116"