If one has direct experience using all manner of crossover part brands and quality tiers as well as hook up wire, then they will know what each change will bring sonically.
OP feel free to reach out to me regarding bulk hook up wire and your options. I have used many options over the years and carefully listened through the break in process. Internal wire choice will change the sound and you just need to know the result you’re looking for. Please first know what is in there now. I suspect Mil Spec silver over copper in Teflon. You must know this first.