Yes,

I wouldn’t rule out the M6. If you end up with a SpeakerLink (SL) processor, then they can be connected directly. If you have a non-SL processor there are adapters available (AC11,12 and Reviver) to use.

Non-SL processors have coax digital outputs to connect to your current speakers, so you should be able to upgrade gradually and someone somewhere may have a wiring diagram for the K-lead.

Brian

Main: G65, MD600 Sooloos, MC200 Roon Core, MS600, 210, 218, UHD722, DSP5200SE, DSP5200HCSE, M6 & DSW.2
System 2: AC200 MS200, WiiM Pro+, M6.
Other: DSP5000 (96/24v1), DSP3300.