XLR Combo Connectors Amphenol Audio XLR Combo Connectors allow the user to plug in an XLR or a 1/4' cable into the same socket. The AC Series C type chassis receptacles feature two connectors in one, space-saving housing. A combined XLR female receptacle together with a 6.35mm (1/4') phone jack give the designer more flexibility ensuring premium board space is saved. The Amphenol Audio XLR Combo Connectors are available in either stereo or mono layouts with industry standard vertical or horizontal PCB mount or solder contacts.