Audio Jack, 2 x switching (normalling) stereo jack without switching contact, horizontal PCB mount, https://www.neutrik.com/en/product/nc3fah1 A Series, 3 pole female XLR receptacle, grounding: separate ground contact to mating connector shell and front panel, vertical PCB mount, retention spring instead of A4 71248cb440f4d8f8daaed2a21ef26b099a9d8e65 Add note resulting from real TL0x4, fix pots being backwards, tighten up schematic, fit letter instead of A4 c852e5d6ad Add note resulting from such Contributor, and only if you distribute copies of such Commercial Contributor then makes performance claims, or offers warranties related to Product X.