We need safe and reliable audio and lighting cables and connectors in live theatre, so you'll want to learn the proper way to repair them. Here are some helpful videos on soldering.
Stripping and Tinning Instrument Cable
Soldering a 1/4" Connector
Stripping and Tinning Speaker Cable
Attaching Speaker Connectors
Stripping and Tinning XLR Cable
Attaching XLR Connectors
Soldering Terminal Connectors Pt. 1
Soldering Terminal Connectors Pt. 2
