All my speaker cables are built. Time domain reflectometry reveals all cables are 0.06 Ohms and under. 0.04 Ohms is attributed to the conductors and 0.02 Ohms to the connectors.

When I pump 7500 peak Watts into the LFRs, I'll be losing roughly a mere 75W on the cables. I am happy with those results.

House of the Rising Sone
Out in the mid or far field
Dedicated mid-woofers are over-rated