Mr. fedie
Your Vtl 250 mono blocks have a DF of 9.3! (8 ohms / 0.86).
https://www.stereophile.com/content/vtl-225w-deluxe-monoblock-power-amplifier-measurements
At 4' you may use almost any wire. it won't make any difference.
Your Vtl 250 mono blocks have a DF of 9.3! (8 ohms / 0.86).
https://www.stereophile.com/content/vtl-225w-deluxe-monoblock-power-amplifier-measurements
At 4' you may use almost any wire. it won't make any difference.