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Writer's pictureNear Field Sounds

Most Common Connectors For Pro-audio Cables

Updated: Mar 8, 2021

Knowing the fundamentals of audio connectors are essential in selecting the right cables for your audio equipment and musical instruments.

neutrik female xlr connector

This post will explain briefly the most common audio connectors in professional studio and stage equipment, such as guitars, microphones, amplifiers, active/passive speakers, mixers, audio interfaces, effects and sound processors.


6.35mm (or 1/4 inch) TS connector

  • TS stands for Tip and Sleeve, which are the connecting parts of this connector

  • 6.35mm or 1/4 inch is the outer diameter of the tip and sleeve

  • Also known as PL55 connector

  • Tip is the signal or (+) positive line, and Sleeve is the ground or (-) negative line

  • Mono and unbalanced cabling

  • Commonly used for guitar/instrument cables and mixing console unbalanced line inputs

roxtone pl55 connector

1/4 inch TRS or 6.35mm TRS connector

  • TRS stands for Tip, Ring and Sleeve, which are the connecting parts of this connector

  • 6.35mm or 1/4 inch is the outer diameter of the tip, ring and sleeve

  • Tip is (+) positive or hot signal, Ring is (-) negative or cold signal and Sleeve is ground/shield

  • Mono and balanced cables

  • Commonly used for interconnecting balanced audio equipment

  • When used as stereo headphone plug, use Tip = left channel, Ring = right channel and Sleeve = ground

roxtone 1/4 trs connector

3.5mm TRS connector

  • TRS stands for Tip, Ring and Sleeve, which are the connecting parts of this connector

  • 3.5mm is the outer diameter of the tip, ring and sleeve

  • Tip = left channel, Ring = right channel and Sleeve = ground

  • Commonly used as headphone stereo plug and auxiliary cable

roxtone 3.5mm trs connector

XLR connector

  • XLR stands for External Line Return

  • XLR has 3 pin connections using 1, 2 and 3 as pin numbers

  • 1 = ground/shield, 2 = hot or (+) positive line and 3 = (-) cold or negative line

  • This connector has interlocking system

  • Commonly used for interconnecting balanced audio equipment and microphone cable

  • XLR cable has one male and female on each ends, which capable to extend the length with another XLR cable

roxtone female xlr
Female XLR
roxtone male xlr connector
Male XLR









RCA connector

Also called as RCA phono connector or phono connector. "RCA" stands for Radio Corporation of America, the company who designed the connector. Cables with RCA are usually sold in pair, for left and right channel of stereo equipment.

roxtone rca connectors

RCA is commonly used to interconnect unbalanced equipment, especially in home theater audio. Examples are turntables, A/V receivers, home amplifiers, home speakers and equalizers. In modern pro-audio equipment, RCA is only present in mixers and audio interfaces as line input or sometimes as monitor output for small-packaged mixers.


3-Pole Female Jacks

  • These are the female counterpart of 6.35mm and 3.5mm TRS plugs, available in both sizes.

  • Commonly used as extension cable with TRS plug at one end

roxtone 1/4 3-pole jack
6.35mm 3-pole jack

roxtone 3.5mm 3-pole jack
3.5mm 3-pole jack











 

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