I use a cat7 between 5200 left and right.
I don't know what it is, at least make me feel good. wink

HT: Audiocom LX800CE, MP-60,HOLO MAY*2 Analogue speaker(LRC), DSP5200SL (side), DSP7200SE (rear),AntimodeX4,JTR Cap4000ULF*2,Christie HD8C,GIK Bass Traps.