Replace Silver interconnect cable , please advice


i don't like the sound of my system
almost no bass , weak soundstage
the music not lively

this is my System:
acoustic zen silver reference ii XLR interconnect
Cardas Clear speaker cable (install them few days ago)
wireworld platinum usb cable
Focal Electra 1038 be II
Pass labs X350.5
Pass labs Xp10 pre
Oppo BDP-105
PC computer

few people told me maybe it's the silver cable
and to try to replace it with Copper.

can you advice on 2-3 models for me to test?

maybe Cardas Clear like my speaker cables?
pelo911
Damn, How close are you to those speakers ?
Toe them in a bit and spread them apart if you can.
Also ,Can that couch go up against the back wall ?
That would help alot IMO. It seems to me that you are way too close . Now these are just my opinions ... just trying to help
If I know Bo1972, I think he will recommend either the Diamondback or the WEL Signature.
Again, the cheapest tweek is to move the couch back, toe-in the spkrs and have a listen. Unless you already know the Focals are the problem. :)
Brands like Audioquest, Cardas, Transparent and taralabs all give a better sharp focus with Pass labs. I like Audioquest a lot cause of the timing and stunning blacks. There are more which are able to give a sharp focus