Hi, might be worth posting on main Meridian systems forum. Someone may have work around as you just want to test.

Regards
Kevin

Main system: 271, Arcam 860, 5500, 5500HC, 8x 33s, OPPO 203, Xbox One S, AppleTV4K, Mac Mini, Sony VW760, Stewart cabaret screen, LG 850 HDR TV, Linn LP12, Itok, Klyde, SkyQ,
Broken! G68D, 598DP
System 2: 565, Marantz SR6011, HD621, 519, 5000, 5000C, Mission 770, Quad 405x2, xBox1, SkyHD, Apple TV. JVC HD950.
Panasonic BD, Toshiba HD-DVD.