That was preciesly the debate .....!

**************************...as mosfet so rightly says various speaker cables don't sound the same.  I often feel they should  it would make life a lot simpler......as someone suggested  its the other bits that make cables sound different ....try mechanically damping a set ....Theres credible reports that cables move when big amps are switched on....also some cables can be demonstrated to be micro phonic though I've not seen the demonstration.