I thought the Explorer 2 can output optical SPDIF?
This could feed to an optical input on the 861v4.

Or is MQA decoding (and apodising?) only available on the analogue output from Explorer 2??


861v4 LPSU, HD621, Sony HW40, PMC AML2, PMC IB2SA Centre - Triamped via Wyred4Sound MMC, PMC Wafer2 surr, PMC SB100 Sub & Wyred4Sound SX-1000, Dune HD MAX. Oppo BDP-105D Signature. Mede8ER 600X3D
Marantz CD94/CDA94. Rotel RB-1562, LG 65" OLED. IPL Acoustics STL5. Virgin Tivo. HifiMan HE-1000/Audio-GD M9. Stax SR-007/KGSSHV Carbon‏.