My advice when you get your cables is to set up the 5000's as a pair first and get them working then move on to subs etc later, It just rules out complexity when things don't quite go to plan.

Rgds
Stuart

Linn LP12, Ittok LV11, Arkiv, Linn Kairn as a phono stage, MPmax 221, DSP6000's, WiiM Pro streamer.