CONNECTORS
Audio connectors
Every connector in the parameter database — diameter, pole count, signal topology and reference standard.
3.5 mm TRRS — Headset Standard (Audio + Mic)
The 3.5 mm TRRS (tip-ring-ring-sleeve) adds a fourth contact to the standard TRS, carrying an inline microphone signal. Two competing pol…
2.5 mm TRRS Balanced (Legacy Portable Balanced)
The 2.5 mm TRRS balanced connector emerged in the early 2010s as portable-audio's first attempt at delivering true differential balanced…
4-Pin XLR Balanced — Desktop Headphone Standard
4-pin XLR is the de-facto standard for balanced headphone connections on desktop amplifiers, dating back to the late-1990s era when balan…