I use a Kimber D60 coax interconnect on my WiiM and a Kimber DV30 coax interconnect on my legacy 5.2KC.

The surrounds use the Meridian provided comms & coax cables due to the run length. (and expense of custom cables lol). You will need also to use the legacy comms either Din or BNC using a converter interface.

My 861 does not have SL and I use a Kimber DV30 from my Blu-Ray player. No comms required on the blu-ray but I use the aforesaid converter from my 8K's to the 861.

Hope that all makes sense.

And what do cents make? Dollars!

DSP8000SEU, DSP5200HC, DSP33, DSW1500, 808v5, 861v4, WiiM Pro+, Panasonic 55" Plasma, DMP-BDT700 Blu-ray,
MECOOL MEon1, Russ Andrews Signature Power Block, UltraFuses, SuperFuses, Kimber Signature PS Interfaces.
Prior: DSP7000.2, DSP6000.2, DSP5000.2, DSP5000.2HC, 508.24, 568.2, 596, G98DH & G68D.
Jaguar F-Type; Meridian 770W Surround System