[hellboyx5]

My current audio setup is speaker 2.0 Swan HiVi M200MKII connected to my soundcard Onkyo SE300PCIE
I'm currently using stock rca to rca cables and it does sound great to me, but I seek more...

I'm wondering if aftermarket cables like Black Curse Vermouth interconnect or Velvet Analog Interconnect will actually improve my speaker's SQ or not.
Does it justify the 50$-100$ tag price? 
 
Sorry for my bad english...

 

[liamstrain]

There is nothing to suggest that an RCA line out to a set of powered speakers can or will affect the sound quality, unless the cables they are replacing are damaged or so poorly designed that they are negatively affecting sound (unlikely - you have to work hard to build a non-standard cable in order to do that).