3 PIN XLR SOCKET (female) to 6.3 MONO JACK PLUG.
3 PIN XLR PLUG (male) to 6.3 STEEREO JACK PLUG ADAPTOR.
3.5mm MONO JACK PLUG to PHONO (rca) SOCKET.
3.5mm STEEREO JACK PLUG to 2x RCA PHONO SOCKETS ADAPTOR.
2x PHONO(rca) SOCKETS to 2X PHONO (rca) SOCKETS COUPLER.
3 PIN XLR MALE to 3 PIN XLR MALE COUPLER / ADAPTOR.
And the list goes on and on. Adaptors don't take up much room or cost alot and will probaly save the day some time in your monstrous rental career job. At the end of the night take a little bit more time to pack them away neatly so next time you won't be pulling wires apart for 10 min's. Take an old rag with you to clean the extension Cords because in lots of places with so many peolple in one room the condensation builds up and the floor will get wet. The extension leads seem to act as a small vacuum cleaners picking up all the dirt from the floor.