You are probably right Neil ! Just realised his objective is a couple of “stereo pairs” with the sub joining one of them.

Hasn’t SpeakerLink simplified setting up a Meridian multi-channel system though.

#1: 8000s, 5500HC, 8000s, 861v8, 800Dv4, HD621
#2: 6000s, 6000C, 5000s, 6000s, 568.2mm, 598DP, 511
#3: 5500s, 5000C, 5000s, 561, 800v3, 518