The SLS-4 is a speaker cable splitter/combiner patch panels for portable and installation amplifier racks. The SLS-4 is essentially an SLS-2 with the connectors placed on the opposite sides or panels of the enclosure. Using Neutrik speaker cable jumpers, the amplifier outputs conveniently patch into the rear panel. The output or front panel then combines channels 1 & 2 into a single NL4 connector providing a Bi-amp output marked 1-2. This is repeated for channels A 3-4, B 1-2 and B 3-4. Each of these Bi-amp NL4 outputs are then combined together in their respective A & B groupings, into a single NL8 connector that can be used to feed an 8 conductor cable with an NL8FC connector allowing flexible patching of 4 full range or two Bi-amp NL4 output connectors in a stage box, by moving a single NL8 connection.