Go straight to bi-wiring.
And it doesn’t need to be cables that are more expensive than the speakers.
But the ends that attach to the speaker and amp, are usually a good place for quality to ensure a nice connection.
And if you looked inside most speakers, they are not “rocking it” with multi k$ cables from the XO to the drivers, or from the binding posts to the XO… so don;t expect miracles.
So staying with the single cable is not a bad thing either.