KICKER brass hardware uses Versa-Gauge connection points with oversized convex screws for rock-solid connections. Use multiple gauge wires with no adapters needed. You get a clean, sharp install that lasts for years. DB4 Distribution Block, (2) 1/0-8AWG in, (4) 4-8AWG out The KICKER DB4 distribution block uses 1/0 to 8 Gauge wire. Versa-Gauge connection points with oversized convex screws for rock-solid connections. The wire receptacles work with most size wire for clean, sharp install and a negative-post adapter collar that locks into place for a tight grip.