Upgrade Speaker Cables or Interconnects


New to audio - I want to update my cables.  What will give me the best results - speaker or interconnect upgrade? Currently running blue jeans speaker and interconnect cables. System - Hegel 160 - Acram CDS 050 - Golden Ear 2+ speaker's.
telemon
Update to my post: I am using MIT Z-cord power cables, amp and cd player, shunyata venom PS8 with venom HC power cord.
 More will say speaker cable makes bigger difference than IC. 
Some will say the opposite 
Some will say spend it on almost any other upgrade ... like room acoustics or better equipment.
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I say power cords have the greatest impact on sonics, next would be interconnects. Since you've upgraded the PC's, go for ICs.