Has your Reviver got Meridian Comms and RS232 as well as SPDIF?

I would try just Meridian Comms, and plug the IP2L to the RS232 of your D6ks.

Sooloos, Roon, G series (with LPS upgrade), 800 series (with LPS upgrade), HD621, AC200, Prime and PS, DSPs old and new.

Purdeys, Moke, Leica, 'Blad. Only the best.