This is a break-out box that connects the first two contacts (pin 1+, 1-) of an NL4 connector to the contact pins on an NL2/combo connector and the other two contacts of the first NL4 connector (pin 2+, 2-) and connects them to the contact pins of a second NL2/combo connector. 

This has the same wiring as a DISTRO that uses all NL4’s.

Applications: This enables two (2) full range speakers to be connected to a single four (4) conductor speaker cable (combining two speaker cables into one).  Due to the fact that only one set of contacts of each NL2/combo connectors are connected to only one half of the NL4 connector, only full range speakers can be connected.  Using a second COMBO (inverted), or any similar section of a box within the COMBO or DISTRO family of Cable Cube products, at the amplifier output position will combine two amplifier outputs into the single NL4 connector. Then a four (4) conductor speaker cable can be utilized to minimize cable spaghetti