Dynamic Speaker Cable?

Im looking for suggestions on speaker cables to add speed or dynamic? I hope Im using the correct terminology. I want to add a bit of seperation of instruments. Currently I have Transparent speaker cables and power cables. Straight wire for all the components. Mc 207, Mc C45, Marantz 9500. Feeding the 802n, htm2d, ds8 rears. I play alot of 80s-90s rock. But do listen Kenny G and other similar music when I feel like turning the volume down a lil. I know there is no science in this question just looking for suggestions from people that own or have owned similiar equipment and what they have liked.