ViaBlue SC-2 - suggestions needed!

Hi there,

I know that what I'm building if quite far away from audiophile quality, but for me it's going to be more than enough for work. 

So I bought these cables: https://viablue.de/com/speaker_cables_sc_2_silver.shtml with the plan to do separate four cables with independent bananas for my Amphion One18 speakers coming from Anaview AMS1000 module.

As you can see these have 2x4mm braided stranded wires inside. Will it be overkill to do 1,5 m long wires with such a gauge? Would it be better/enough to make two connections on one cable? RED for silver plated part, BLACK for thinned copper?

BTW, what do you think on skip binding posts and solder the stright to amp?

What's you opinions? 

Thanks