I've been able to reduce the digital harshness/glare with cables, transport and cables but having the ability to reduce the high frequency with the Loki has been most effective. Makes digital more analog/lp like imo. Not a bad investment considering how affordable it is.
I believe is pre 2010. Ps audio nuwave dsd, audiolab 6000cdt and jps superconductor fx ic. Speakers little bright. Proac d30r. Room is big. It's more useful when listening at higher volumes and when the brightness can be bit edgy. Useful with tube gears also imo.