Dont think tape out is active for digital sources without the internal optional 517DAC card or if you have 562v2 or later (which, unlike 517 will not have variable out)

Meridian owner since 1992
Prime & PSU, Focal Elear headphones, Roon (ROCK 8Gi5 NUC), Explorer 1 & 2, F80. 200/203, various Sonos (via Roon).