EFX For power or ground cables — two 1/0-gauge inputs, four 4-gauge outputs (fuses not included)

Your high-powered, multi-amp system needs wiring hardware that passes electrical power and signal without loss, and holds your wires safely, securely, and neatly, even in the less-than-ideal mobile audio environment. For those of you into extreme SPL systems, EFX's Delta quad fused distribution block lets you take two 1/0-gauge power wiring runs from the battery and distribute the power from each wire through two fuses (not included) and on to a total of four connections for your amplifiers' 4-gauge power wires. One of the input-output pairs of connections can be used for ground distribution as well — with power flowing one direction through the distribution block while ground goes the other way. You replace two fuses with a jumper plate (included) making direct connections between those inputs and output. Then, the 4-gauge ground wires come from the amps while the 1/0-gauge goes to your vehicle's chassis ground. A tough polycarbonate cover protects the electrical connections from dirt and weather.