Little bit "forward" sound - what cables to avoid?


My system with Cary SLP-05 sounds great, but just a little bit "forward" to my taste. My PC and interconnects all are Wireworld, and I feel to explore all SLP-05 potential I need something better - I am thinking about Kubala-Sosna, Purist Audio, Nordost, Shunyata...
I know the choice of cables is system dependent, and matter of taste... But, is there a common opinion which cables are known for tendency to "forward" sound and I should avoid?
I do not have experience with cables and any help to narrow my choice is greatly appreciated.
Thank you.
Boris.
128x128homosapien
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Thank you, Tvad.
Once again, I am not looking for a way to fix forward sound, it is not a problem. I just want to get better cables, and asking if there are cables that potentially can make it a real problem. If cables have nothing to do with that - it's fine, or, as Rgs22 said "I did try Nordost Valhalla ICs once, and they were extremely forward", so at least I will not look at them.
Thank you.
Boris.
Post removed 
I guess I did not make myself clear - my fault, sorry.
Anyway thanks everybody for trying to help.
Boris.