On the contrary.... it's all that matters! Thin cables can affect the sound if too thin. Remember those DNM ones that were really thin single strand? A mate bought some and I measured its loop resistance as 1 Ohm for a run of about 4 metres! That means a maximum damping factor of 8 or 4 depending if you have 8 or 4 Ohm speakers.... You can imagine what it would do to frequency response when used with a bit of a difficult speaker! All that inaccuracy and "SET effect" may be liked by some but accurate it ain't.