Based on my experience with bi-wiring on more than a dozen speakers, it makes a difference with 3-way speakers and large woofers.
Unnecessary with 2-ways. Also no need to spend a fortune on nicely worded pseudo-science, large gauge ropes of pure copper is all you need, especially with low impedance speakers (i.e. bass drivers).
Unnecessary with 2-ways. Also no need to spend a fortune on nicely worded pseudo-science, large gauge ropes of pure copper is all you need, especially with low impedance speakers (i.e. bass drivers).