If you have the budget, a used Meridian 218 in your system would unfold MQA for you.

This is how I unfold MQA CDs played on my Meridian 506 at up to 96khz (my DSP5200SEs subsequently render the MQA signal up to 352khz).

For you, you would connect a 218 to your G68 via the 218's phono outputs.

The internal DAC on the 218s outputs at 192khz via its phono outputs.

Not an Actor, nor married to Jamie-Lee Curtis.

#1: DSP5200SE|DSW.2|218|210|506.2|504
#2: Prime/PSU|SOtM sMS-200 Mini NEO SE|Focal Stellia
#3: Other stuff