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Connector Encyclopedia · Audio

TRS · ¼″ / ⅛″

Three contacts, two jobs: balanced mono or stereo. Check the jack.

Pin explorer

Schematic. Read the molded numbers on the real part.
Plug body: tabs sit in the same order on the back; no flip needed.
TRS
PinFunction
THot (+)
RCold (−)
SShield
Printable bench card

TRS · ¼″ / ⅛″

TRS
Balanced mono
THot (+)
RCold (−)
SShield
Stereo (headphones)
TLeft
RRight
SCommon / ground
Insert send/return (common convention)
TSend
RReturn
SGround

Cable: Balanced: two-conductor shielded. Stereo: two-conductor shielded. Instrument (TS): one conductor shielded. · Limits: Line and headphone level. ⅛″ is fragile; strain relief matters. · productionbench.com/connectors/trs · Reviewed by Thomas Popp

Sources

  • AES48 · grounding and shielding
  • Manufacturer insert conventions (verify per device)

Verified against the sources above · Reviewed by Thomas Popp. Found an error? Tell us; corrections are logged on the page.

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