FIELD GUIDESource-led reference
Port & Cable

P022 / Audio / Connector

6.35 mm TRS connector

A 6.35 mm TRS plug has three conductive sections; the equipment determines their function.

Also called quarter inch TRS 6.35mm stereo balanced TRS

TRS is not a universal synonym for stereo.

Look for

Compare the two insulating bands with the TS form. Use the connector as an identifier, then consult the exact signal assignment.

Claim inspection dates: 2026-10-01, 2026-10-11 · Independent review pending

6.35 mm TRS connector: three-quarter view. Computer-generated illustration, not a photograph.

Three-quarter view Computer-generated illustration with prior AI visual review. Not a photograph, measurement or compatibility check. Independent technical and rights review pending.

6.35 mm TRS connector: mating face. Computer-generated illustration, not a photograph.

Mating face Computer-generated illustration with prior AI visual review. Not a photograph, measurement or compatibility check. Independent technical and rights review pending.

6.35 mm TRS connector: original recognition drawing, not to scale.

Recognition drawing Original schematic, not to scale. Drawing review pending.

Pins & wiring

Pinout

Choose the exact wiring. Pin numbers follow its stated view; a schematic does not establish physical positions. Check your exact device before wiring.

What the status labels mean
Confirmed
Recorded research passes agree within this variant; this is not independent human review or hardware validation.
Single source
Only one underlying document, or one pass, supports this assignment.
Device-specific
Supported for the named equipment or wiring only. Check your device’s manual.
Unverified
Missing or conflicting evidence. Do not wire from this row.
Not connected
The source explicitly says NC, no contact or no pin for this wiring.
Wiring variant

Yamaha EMX2 MIC/LINE 3 and MIC/LINE 4 (Hi-Z off) balanced inputs

Device-specific wiring. Check your device’s manual before connecting or applying power.

View and evidence limits

Plug contacts named tip/ring/sleeve; no face view.

  • P022 6.35 mm TRS — **Agree** on balanced (T hot, R cold, S ground), headphones (T left, R right) and insert (T send, R return) — Different manufacturers in each pass (Yamaha vs Yamaha and Mackie).
  • Table footnote: these jacks also accept TS plugs; the connection is then unbalanced.
  • IEC 60268-12 text was not accessed; no universal TRS assignment is asserted.
  • Stereo-unbalanced line, TRS MIDI, footswitch/expression pedal and other manufacturer uses were not established from primary documents in this pass.
  • Tip-send/ring-return is verified only for the MG32/14FX and MG24/14FX. Other manufacturers' insert conventions were not checked.
6.35 mm TRS contact-designation referencePlug contacts named tip/ring/sleeve; no face view.SCHEMATIC · physical positions unconfirmedNot to scale · check the named wiring and device manualT: Hot (+) (device_specific)TR: Cold (-) (device_specific)RS: Ground (device_specific)SpowergrounddataConfigshieldNCUnknown
Schematic only · physical contact positions unconfirmed. Original drawing · not to scale. Scroll sideways if needed.
Yamaha EMX2 MIC/LINE 3 and MIC/LINE 4 (Hi-Z off) balanced inputs — source-scoped contact map
PinSignalWhat it doesStatus
THot (+)Control, detection or configuration connection; check the source and device.Device-specific
Sources
RCold (-)Control, detection or configuration connection; check the source and device.Device-specific
Sources
SGroundGround reference and return.Device-specific
Sources
Sources (1)

Yamaha EMX2 MONITOR OUT and SUBWOOFER OUT (impedance balanced)

Device-specific wiring. Check your device’s manual before connecting or applying power.

View and evidence limits

Plug contacts named tip/ring/sleeve; no face view.

  • P022 6.35 mm TRS — **Agree** on balanced (T hot, R cold, S ground), headphones (T left, R right) and insert (T send, R return) — Different manufacturers in each pass (Yamaha vs Yamaha and Mackie).
  • IEC 60268-12 text was not accessed; no universal TRS assignment is asserted.
  • Stereo-unbalanced line, TRS MIDI, footswitch/expression pedal and other manufacturer uses were not established from primary documents in this pass.
  • Tip-send/ring-return is verified only for the MG32/14FX and MG24/14FX. Other manufacturers' insert conventions were not checked.
6.35 mm TRS contact-designation referencePlug contacts named tip/ring/sleeve; no face view.SCHEMATIC · physical positions unconfirmedNot to scale · check the named wiring and device manualT: Hot (+) (device_specific)TR: Cold (-) (device_specific)RS: Ground (device_specific)SpowergrounddataConfigshieldNCUnknown
Schematic only · physical contact positions unconfirmed. Original drawing · not to scale. Scroll sideways if needed.
Yamaha EMX2 MONITOR OUT and SUBWOOFER OUT (impedance balanced) — source-scoped contact map
PinSignalWhat it doesStatus
THot (+)Control, detection or configuration connection; check the source and device.Device-specific
Sources
RCold (-)Control, detection or configuration connection; check the source and device.Device-specific
Sources
SGroundGround reference and return.Device-specific
Sources
Sources (1)

Yamaha MG32/14FX, MG24/14FX INPUT B, GROUP OUT, AUX SEND 1-6, EFFECT SEND 1-2, ST SUB OUT

Device-specific wiring. Check your device’s manual before connecting or applying power.

View and evidence limits

Plug contacts named tip/ring/sleeve; no face view.

  • P022 6.35 mm TRS — **Agree** on balanced (T hot, R cold, S ground), headphones (T left, R right) and insert (T send, R return) — Different manufacturers in each pass (Yamaha vs Yamaha and Mackie).
  • Figure footnote: these jacks also accept monaural phone plugs, making the connection unbalanced.
  • IEC 60268-12 text was not accessed; no universal TRS assignment is asserted.
  • Stereo-unbalanced line, TRS MIDI, footswitch/expression pedal and other manufacturer uses were not established from primary documents in this pass.
  • Tip-send/ring-return is verified only for the MG32/14FX and MG24/14FX. Other manufacturers' insert conventions were not checked.
6.35 mm TRS contact-designation referencePlug contacts named tip/ring/sleeve; no face view.SCHEMATIC · physical positions unconfirmedNot to scale · check the named wiring and device manualT: Hot (+) (device_specific)TR: Cold (-) (device_specific)RS: Ground (device_specific)SpowergrounddataConfigshieldNCUnknown
Schematic only · physical contact positions unconfirmed. Original drawing · not to scale. Scroll sideways if needed.
Yamaha MG32/14FX, MG24/14FX INPUT B, GROUP OUT, AUX SEND 1-6, EFFECT SEND 1-2, ST SUB OUT — source-scoped contact map
PinSignalWhat it doesStatus
THot (+)Control, detection or configuration connection; check the source and device.Device-specific
Sources
RCold (-)Control, detection or configuration connection; check the source and device.Device-specific
Sources
SGroundGround reference and return.Device-specific
Sources
Sources (1)

Yamaha MG32/14FX, MG24/14FX INSERT I/O, GROUP INS I/O, ST INSERT I/O (insert points)

Device-specific wiring. Check your device’s manual before connecting or applying power.

View and evidence limits

Plug contacts named tip/ring/sleeve; no face view.

  • P022 6.35 mm TRS — **Agree** on balanced (T hot, R cold, S ground), headphones (T left, R right) and insert (T send, R return) — Different manufacturers in each pass (Yamaha vs Yamaha and Mackie).
  • Requires a TRS-to-dual-TS insert cable (p. 21 illustration).
  • IEC 60268-12 text was not accessed; no universal TRS assignment is asserted.
  • Stereo-unbalanced line, TRS MIDI, footswitch/expression pedal and other manufacturer uses were not established from primary documents in this pass.
  • Tip-send/ring-return is verified only for the MG32/14FX and MG24/14FX. Other manufacturers' insert conventions were not checked.
6.35 mm TRS contact-designation referencePlug contacts named tip/ring/sleeve; no face view.SCHEMATIC · physical positions unconfirmedNot to scale · check the named wiring and device manualT: Output (send) (device_specific)TR: Input (return) (device_specific)RS: Ground (device_specific)SpowergrounddataConfigshieldNCUnknown
Schematic only · physical contact positions unconfirmed. Original drawing · not to scale. Scroll sideways if needed.
Yamaha MG32/14FX, MG24/14FX INSERT I/O, GROUP INS I/O, ST INSERT I/O (insert points) — source-scoped contact map
PinSignalWhat it doesStatus
TOutput (send)Control, detection or configuration connection; check the source and device.Device-specific
Sources
RInput (return)Control, detection or configuration connection; check the source and device.Device-specific
Sources
SGroundGround reference and return.Device-specific
Sources
Sources (1)

Yamaha MG32/14FX, MG24/14FX PHONES output

Device-specific wiring. Check your device’s manual before connecting or applying power.

View and evidence limits

Plug contacts named tip/ring/sleeve; no face view.

  • P022 6.35 mm TRS — **Agree** on balanced (T hot, R cold, S ground), headphones (T left, R right) and insert (T send, R return) — Different manufacturers in each pass (Yamaha vs Yamaha and Mackie).
  • IEC 60268-12 text was not accessed; no universal TRS assignment is asserted.
  • Stereo-unbalanced line, TRS MIDI, footswitch/expression pedal and other manufacturer uses were not established from primary documents in this pass.
  • Tip-send/ring-return is verified only for the MG32/14FX and MG24/14FX. Other manufacturers' insert conventions were not checked.
6.35 mm TRS contact-designation referencePlug contacts named tip/ring/sleeve; no face view.SCHEMATIC · physical positions unconfirmedNot to scale · check the named wiring and device manualT: L (device_specific)TR: R (device_specific)RS: Ground (device_specific)SpowergrounddataConfigshieldNCUnknown
Schematic only · physical contact positions unconfirmed. Original drawing · not to scale. Scroll sideways if needed.
Yamaha MG32/14FX, MG24/14FX PHONES output — source-scoped contact map
PinSignalWhat it doesStatus
TLControl, detection or configuration connection; check the source and device.Device-specific
Sources
RRControl, detection or configuration connection; check the source and device.Device-specific
Sources
SGroundGround reference and return.Device-specific
Sources
Sources (1)

Yamaha PX10/PX8/PX5/PX3 [INPUT] A/B balanced TRS phone jack

Device-specific wiring. Check your device’s manual before connecting or applying power.

View and evidence limits

Plug contacts named tip/ring/sleeve; no face view.

  • P022 6.35 mm TRS — **Agree** on balanced (T hot, R cold, S ground), headphones (T left, R right) and insert (T send, R return) — Different manufacturers in each pass (Yamaha vs Yamaha and Mackie).
  • IEC 60268-12 text was not accessed; no universal TRS assignment is asserted.
  • Stereo-unbalanced line, TRS MIDI, footswitch/expression pedal and other manufacturer uses were not established from primary documents in this pass.
  • Tip-send/ring-return is verified only for the MG32/14FX and MG24/14FX. Other manufacturers' insert conventions were not checked.
6.35 mm TRS contact-designation referencePlug contacts named tip/ring/sleeve; no face view.SCHEMATIC · physical positions unconfirmedNot to scale · check the named wiring and device manualT: Tip (hot) (device_specific)TR: Ring (cold) (device_specific)RS: Sleeve (ground) (device_specific)SpowergrounddataConfigshieldNCUnknown
Schematic only · physical contact positions unconfirmed. Original drawing · not to scale. Scroll sideways if needed.
Yamaha PX10/PX8/PX5/PX3 [INPUT] A/B balanced TRS phone jack — source-scoped contact map
PinSignalWhat it doesStatus
TTip (hot)Control, detection or configuration connection; check the source and device.Device-specific
Sources
RRing (cold)Control, detection or configuration connection; check the source and device.Device-specific
Sources
SSleeve (ground)Control, detection or configuration connection; check the source and device.Device-specific
Sources
Sources (1)

Yamaha MG10XU/MG10X/MG10 balanced/impedance-balanced phone outputs (STEREO OUT, MONITOR OUT, AUX (FX) SEND)

Device-specific wiring. Check your device’s manual before connecting or applying power.

View and evidence limits

Contacts identified by name; local ordinals 1 = tip, 2 = ring, 3 = sleeve. No jack lug or PCB pad numbering is implied.

  • P022 6.35 mm TRS — **Agree** on balanced (T hot, R cold, S ground), headphones (T left, R right) and insert (T send, R return) — Different manufacturers in each pass (Yamaha vs Yamaha and Mackie).
  • Some consoles are reported to use ring = send / tip = return; no primary document for such a device was read, so that variant is not recorded.
  • The Yamaha technical specification lists PHONES as a 'Stereo phone jack' without a tip/ring assignment; not recorded.
  • Stereo line, TRS MIDI, footswitch and power uses were not established in this pass.
6.35 mm TRS contact-designation referenceContacts identified by name; local ordinals 1 = tip, 2 = ring, 3 = sleeve. No jack lug or PCB pad numbering is implied.SCHEMATIC · physical positions unconfirmedNot to scale · check the named wiring and device manual1: Tip = Hot (device_specific)12: Ring = Cold (device_specific)23: Sleeve = Ground (device_specific)3powergrounddataConfigshieldNCUnknown
Schematic only · physical contact positions unconfirmed. Original drawing · not to scale. Scroll sideways if needed.
Yamaha MG10XU/MG10X/MG10 balanced/impedance-balanced phone outputs (STEREO OUT, MONITOR OUT, AUX (FX) SEND) — source-scoped contact map
PinSignalWhat it doesStatus
1Tip = HotControl, detection or configuration connection; check the source and device.Device-specific
Sources
2Ring = ColdControl, detection or configuration connection; check the source and device.Device-specific
Sources
3Sleeve = GroundControl, detection or configuration connection; check the source and device.Device-specific
Sources
Sources (1)

Mackie 1202VLZ4 line inputs, balanced TRS plug wiring

Device-specific wiring. Check your device’s manual before connecting or applying power.

View and evidence limits

Contacts identified by name; local ordinals 1 = tip, 2 = ring, 3 = sleeve. No jack lug or PCB pad numbering is implied.

  • P022 6.35 mm TRS — **Agree** on balanced (T hot, R cold, S ground), headphones (T left, R right) and insert (T send, R return) — Different manufacturers in each pass (Yamaha vs Yamaha and Mackie).
  • Some consoles are reported to use ring = send / tip = return; no primary document for such a device was read, so that variant is not recorded.
  • The Yamaha technical specification lists PHONES as a 'Stereo phone jack' without a tip/ring assignment; not recorded.
  • Stereo line, TRS MIDI, footswitch and power uses were not established in this pass.
6.35 mm TRS contact-designation referenceContacts identified by name; local ordinals 1 = tip, 2 = ring, 3 = sleeve. No jack lug or PCB pad numbering is implied.SCHEMATIC · physical positions unconfirmedNot to scale · check the named wiring and device manual1: Tip = Positive (+ or hot) (device_specific)12: Ring = Negative (- or cold) (device_specific)23: Sleeve = Shield or ground (device_specific)3powergrounddataConfigshieldNCUnknown
Schematic only · physical contact positions unconfirmed. Original drawing · not to scale. Scroll sideways if needed.
Mackie 1202VLZ4 line inputs, balanced TRS plug wiring — source-scoped contact map
PinSignalWhat it doesStatus
1Tip = Positive (+ or hot)Control, detection or configuration connection; check the source and device.Device-specific
Sources
2Ring = Negative (- or cold)Control, detection or configuration connection; check the source and device.Device-specific
Sources
3Sleeve = Shield or groundCable screen or shield connection; check the named equipment.Device-specific
Sources
Sources (1)

Mackie 1202VLZ4 stereo headphone output

Device-specific wiring. Check your device’s manual before connecting or applying power.

View and evidence limits

Contacts identified by name; local ordinals 1 = tip, 2 = ring, 3 = sleeve. No jack lug or PCB pad numbering is implied.

  • P022 6.35 mm TRS — **Agree** on balanced (T hot, R cold, S ground), headphones (T left, R right) and insert (T send, R return) — Different manufacturers in each pass (Yamaha vs Yamaha and Mackie).
  • Some consoles are reported to use ring = send / tip = return; no primary document for such a device was read, so that variant is not recorded.
  • The Yamaha technical specification lists PHONES as a 'Stereo phone jack' without a tip/ring assignment; not recorded.
  • Stereo line, TRS MIDI, footswitch and power uses were not established in this pass.
6.35 mm TRS contact-designation referenceContacts identified by name; local ordinals 1 = tip, 2 = ring, 3 = sleeve. No jack lug or PCB pad numbering is implied.SCHEMATIC · physical positions unconfirmedNot to scale · check the named wiring and device manual1: Tip = Left channel (device_specific)12: Ring = Right channel (device_specific)23: Sleeve = Common ground (device_specific)3powergrounddataConfigshieldNCUnknown
Schematic only · physical contact positions unconfirmed. Original drawing · not to scale. Scroll sideways if needed.
Mackie 1202VLZ4 stereo headphone output — source-scoped contact map
PinSignalWhat it doesStatus
1Tip = Left channelControl, detection or configuration connection; check the source and device.Device-specific
Sources
2Ring = Right channelControl, detection or configuration connection; check the source and device.Device-specific
Sources
3Sleeve = Common groundControl, detection or configuration connection; check the source and device.Device-specific
Sources
Sources (1)

Mackie 1202VLZ4 channel insert (single-jack send/return)

Device-specific wiring. Check your device’s manual before connecting or applying power.

View and evidence limits

Contacts identified by name; local ordinals 1 = tip, 2 = ring, 3 = sleeve. No jack lug or PCB pad numbering is implied.

  • P022 6.35 mm TRS — **Agree** on balanced (T hot, R cold, S ground), headphones (T left, R right) and insert (T send, R return) — Different manufacturers in each pass (Yamaha vs Yamaha and Mackie).
  • Unbalanced send/return; Mackie p. 11 gives send (tip) 120 ohm and return (ring) >2.5 kohm.
  • Some consoles are reported to use ring = send / tip = return; no primary document for such a device was read, so that variant is not recorded.
  • The Yamaha technical specification lists PHONES as a 'Stereo phone jack' without a tip/ring assignment; not recorded.
  • Stereo line, TRS MIDI, footswitch and power uses were not established in this pass.
6.35 mm TRS contact-designation referenceContacts identified by name; local ordinals 1 = tip, 2 = ring, 3 = sleeve. No jack lug or PCB pad numbering is implied.SCHEMATIC · physical positions unconfirmedNot to scale · check the named wiring and device manual1: Tip = Send (device_specific)12: Ring = Return (device_specific)23: Sleeve = Ground (device_specific)3powergrounddataConfigshieldNCUnknown
Schematic only · physical contact positions unconfirmed. Original drawing · not to scale. Scroll sideways if needed.
Mackie 1202VLZ4 channel insert (single-jack send/return) — source-scoped contact map
PinSignalWhat it doesStatus
1Tip = SendControl, detection or configuration connection; check the source and device.Device-specific
Sources
2Ring = ReturnControl, detection or configuration connection; check the source and device.Device-specific
Sources
3Sleeve = GroundControl, detection or configuration connection; check the source and device.Device-specific
Sources
Sources (1)

Image inspection / P022

See the view. Check its scope.

3 registered views for this reference. Different part examples are not automatically mates; all remain not to scale and independently unapproved.

NP3X / three-pole profile. Side elevation in ST-NP3X. Exact part, qualitative side view. Contact designations do not select the equipment port role. (private workspace)

P022 / Source-observed physical study

NP3X / three-pole profile

Neutrik NP3X

Side elevation in ST-NP3X · Cable plug / cable end

Not to scale. Technical and rights review pending.

Inspect view & provenance (private workspace)
TRS shape / different equipment roles. Abstract equipment-role cards, not a chassis drawing. Concept derived from the named interface documentation; no universal compatibility or measured audio performance. (private workspace)

P022 / Concept — not physical geometry

TRS shape / different equipment roles

Scarlett Solo 4th Gen roles; abstract layout

Abstract equipment-role cards, not a chassis drawing · Concept only

Not to scale. Technical and rights review pending.

Inspect view & provenance (private workspace)
6.35 mm TRS connector: Two insulating bands / three metal sections. Side exterior of cable plug; qualitative band placement. Qualitative source-linked recognition study, not a pinout or a dimensional guide. (private workspace)

P022 / Inherited recognition study

6.35 mm TRS connector

6.35 mm TRS connector

Side exterior of cable plug; qualitative band placement · Cable plug / cable end

Not to scale. Technical and rights review pending.

Inspect view & provenance (private workspace)

Visual atlas / P022 / 2026

Recognize the right physical clue.

FIGURE · REVIEW PENDING
6.35 mm TRS connector: Two insulating bands / three metal sections. Side exterior of cable plug; qualitative band placement. Qualitative source-linked recognition study, not a pinout or a dimensional guide.
Cable-end plug. Side exterior of cable plug; qualitative band placement.

What to look for

Two insulating bands / three metal sections

What the drawing does not prove

Band counts are documented; no geometric scale or wiring assignment.

The instrument or balanced-audio role depends on the equipment, not just the plug.

No fabrication dimensions, conductor routing, guaranteed fit or device approval. For electrical, power and optical interfaces, follow the original equipment instructions.

Figure evidence, orientation & usage rights

Uses previously recorded V112 manufacturer claim/source inspections; October 2026 supplementary public-source spot checks are documented separately, not treated as a refreshed approval.

Original Port & Cable interpretive vector, no third-party photo, copied CAD, logo or vendor drawing. Third-party product photos, logos and source drawings are not redistributed. pending independent expert assessment; publication approval remains closed.

Original claim identifiers: C022A (private workspace) · C022B (private workspace). Legacy evidence dates and rights assessments remain as recorded.

The useful distinction

Is a TRS socket for headphones or balanced line audio?

Read the equipment role, not just the three sections. On the Solo 4th Gen, the headphone output and balanced line outputs use TRS connections for different jobs. C022A · C022E

Component or signal: documented distinction and remaining check
CheckDocumented distinctionWhat this does not establish
ComponentNP3X is a three-pole quarter-inch plug. C022AA plug specification does not assign left/right channels, signal level or an input/output role.
Headphone exampleThe Solo 4th Gen has a 6.35 mm TRS headphone output. C022EIdentify the headphone socket rather than treating every quarter-inch output as the same endpoint.
Line-output exampleIts balanced line outputs 1 and 2 serve an amplifier or active monitors. C022EDo not infer that one balanced line jack carries a stereo headphone feed.

Keep this limit: The connector’s contact names and nominal size do not prove balanced, stereo, microphone or speaker service. C022A · C022E

Before choosing the cable or component

  1. Read the port name and input/output role in the exact equipment manual.
  2. Check whether the destination expects headphones, line audio or another documented signal.
  3. Use the cable specification for that equipment pair; do not infer a universal TRS wiring map.
Original source statements and citation return points

A 6.35 mm TRS plug has three conductive sections; the equipment determines their function. [C022A]

Neutrik distinguishes connector contact arrangements from balanced and unbalanced signal use. [C022B]

Neutrik customer drawing ST-NP3X labels the NP3X shaft diameter as 6.29 mm, within a product sold as a nominal quarter-inch three-pole plug. [C022C]

Neutrik assembly instruction BDA 142-0 identifies Tip, Ring and Shield termination paths for NP3X; it does not assign a universal left/right or balanced-signal role to them. [C022D]

For Scarlett Solo 4th Gen, Focusrite documents a 6.35 mm TRS headphone output separately from balanced quarter-inch TRS line outputs 1 and 2 intended for an amplifier or active monitors. [C022E]

Source check · 14 October 2026. NP3X construction and Solo output roles were re-observed. The older shaft drawing and assembly sheet were not reverified.

Source-qualified reference, not a wiring, optical-link or compatibility approval. Each linked claim and source carries its own recorded inspection date and review status. Selected source checks do not constitute independent technical or rights approval.

Existing source trail: S025 · S528.

Audio questions · 3.5 mm TRS connector · 6.35 mm TS connector

Source-scoped identification facts

Each value retains its exact example, role and measurement axis. Facts from different parts must not be combined into an invented component.

Documented examples; not a mating drawing or compatibility approval
Nominal contacts3S025phone plug physical contact sequence; nominal engineering count, not automatically positions, population or a device wiring map. phone plug physical contact sequence
Dimensions / axis6.35 mm Nominal plug family diameter; 14.5 mm published shell width (NP3X)S025 · S025Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. nominal_identifier; phone plug physical contact sequence NP3X. Documented role: plug. 15.88mm jackfield pitch is connector-to-connector packing,not contact pitch.4–7mm cable acceptance excluded from connector dimensions.
Connector roleplug; plug (NP3X)S025 · S025Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. phone plug physical contact sequence NP3X. Documented role: plug. 15.88mm jackfield pitch is connector-to-connector packing,not contact pitch.4–7mm cable acceptance excluded from connector dimensions.
ManufacturerNeutrik (NP3X)S025Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. NP3X. Documented role: plug. 15.88mm jackfield pitch is connector-to-connector packing,not contact pitch.4–7mm cable acceptance excluded from connector dimensions.
SeriesPlug X (NP3X)S025Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. NP3X. Documented role: plug. 15.88mm jackfield pitch is connector-to-connector packing,not contact pitch.4–7mm cable acceptance excluded from connector dimensions.
Exact part / implementationNP3X (NP3X)S025Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. NP3X. Documented role: plug. 15.88mm jackfield pitch is connector-to-connector packing,not contact pitch.4–7mm cable acceptance excluded from connector dimensions.
View conventionLongitudinal plug view from the exposed tip toward the cable body: Tip → Ring → Sleeve.S025Recorded source-scoped values; named examples do not describe every family variant or establish compatibility. Existing engineering orientation text; source/part/view remains controlling.

Not recorded: Positions / cavity span, Populated contacts, Contact rows, Contact pitch, Contact gender / arrangement, Mounting, Coupling / latch, Keying / polarization, Shell / form, Recorded markings. Unknown fields stay unknown; illustrations supply no measurements or pin assignments.

Recorded variant and source limits
  • No balanced, stereo, insert or other equipment function is inferred from TRS geometry alone.
  • No manufacturing tolerances are published.
  • Yamaha EMX2 MIC/LINE 3 and MIC/LINE 4 (Hi-Z off) balanced inputs: Plug contacts named tip/ring/sleeve; no face view.
  • Yamaha EMX2 MONITOR OUT and SUBWOOFER OUT (impedance balanced): Plug contacts named tip/ring/sleeve; no face view.
  • Yamaha MG32/14FX, MG24/14FX INPUT B, GROUP OUT, AUX SEND 1-6, EFFECT SEND 1-2, ST SUB OUT: Plug contacts named tip/ring/sleeve; no face view.
  • Yamaha MG32/14FX, MG24/14FX INSERT I/O, GROUP INS I/O, ST INSERT I/O (insert points): Plug contacts named tip/ring/sleeve; no face view.
  • Yamaha MG32/14FX, MG24/14FX PHONES output: Plug contacts named tip/ring/sleeve; no face view.
  • Yamaha PX10/PX8/PX5/PX3 [INPUT] A/B balanced TRS phone jack: Plug contacts named tip/ring/sleeve; no face view.
  • Yamaha MG10XU/MG10X/MG10 balanced/impedance-balanced phone outputs (STEREO OUT, MONITOR OUT, AUX (FX) SEND): Contacts identified by name; local ordinals 1 = tip, 2 = ring, 3 = sleeve. No jack lug or PCB pad numbering is implied.
  • Mackie 1202VLZ4 line inputs, balanced TRS plug wiring: Contacts identified by name; local ordinals 1 = tip, 2 = ring, 3 = sleeve. No jack lug or PCB pad numbering is implied.
  • Mackie 1202VLZ4 stereo headphone output: Contacts identified by name; local ordinals 1 = tip, 2 = ring, 3 = sleeve. No jack lug or PCB pad numbering is implied.
  • Mackie 1202VLZ4 channel insert (single-jack send/return): Contacts identified by name; local ordinals 1 = tip, 2 = ring, 3 = sleeve. No jack lug or PCB pad numbering is implied.
Report a correction to these facts →

Bounded facts, visible unknowns

Specifications and limits

6.35 mm TRS connector facts and limitations
Nominal diameter6.35 mm / 1/4 inch [C022A] [C022B]
Conductive sections3: tip / ring / sleeve [C022A] [C022B]
Mechanical dimensionsNo independently reviewed mechanical drawing in this release; do not use this page for fabrication.
Engineering pinoutSource-checked engineering profile available; independent review pending. Open engineering profile →
Verified device listNot included. Check exact device and accessory documentation.
A boundary, not an omission to guess around.

This record is an identification starting point. It does not provide measured mating tolerances, electrical approval, or a list of verified device models. Use the original device and accessory documentation to resolve the remaining requirements.

Before you connect

What to check

  1. Confirm whether the equipment uses stereo, balanced mono or another documented arrangement.
  2. Check input/output roles and required signal level.
  3. Choose conversion hardware by function, not just connector ends.
Trace a supported connection class →

Your next step

Move from the form to the requirement.

Read the engineering reference Source-scoped details, orientation and explicit unknowns.Work through a connection Choose your task before deciding on a cable.Explore this evidence trail Inspect the claims and their dependencies. (private workspace)

The source trail

Evidence for this page

AI-assisted inspection is not independent engineering review. Source scope and access limitations are disclosed below. Procedural checklists are editorial requirements, not hardware measurements.

Back to first citation ↑
C022ASource checked · pending review

A 6.35 mm TRS plug has three conductive sections; the equipment determines their function.

Neutrik · NP3X phone plug ↗

Locator: Technical information
Access: public page.

S025: full source recordInspect review dependencies → (private workspace)

Claim scope: Consumer identification / documented standard or product class only. Next review due 2026-12-30.

Back to first citation ↑
C022BSource checked · pending review

Neutrik distinguishes connector contact arrangements from balanced and unbalanced signal use.

Neutrik · Plugs and jacks FAQ ↗

Locator: Balanced / unbalanced contact use
Access: public page.

S026: full source recordInspect review dependencies → (private workspace)

Claim scope: Narrowly stated supporting distinction; not an end-to-end device guarantee. Next review due 2026-12-30.

Back to first citation ↑
C022CSource checked · pending review

Neutrik customer drawing ST-NP3X labels the NP3X shaft diameter as 6.29 mm, within a product sold as a nominal quarter-inch three-pole plug.

Neutrik · NP3X phone plug ↗

Locator: Technical information
Access: public page.

S025: full source recordNeutrik · Neutrik NP3X customer drawing ST-NP3X ↗

Locator: Sheet 1 of 1; main elevation, diameter callout and title block dated 26-Jan-2004.
Access: public pdf text. Named NP3X drawing labels the shaft diameter 6.29 mm. No inference about every nominal quarter-inch connector. Raw source files are not bundled; linked observation and locator retained.

S525: full source recordInspect review dependencies → (private workspace)

Claim scope: Exact NP3X sheet dated 26-Jan-2004; no universal geometry, tolerance or mating approval.. Next review due 2027-01-09.

Back to first citation ↑
C022DSource checked · pending review

Neutrik assembly instruction BDA 142-0 identifies Tip, Ring and Shield termination paths for NP3X; it does not assign a universal left/right or balanced-signal role to them.

Neutrik · Neutrik NP*X assembly instruction BDA 142-0 ↗

Locator: Single page; panel C terminal labels for NP2X and NP3X. Footer update 06-Nov-2010.
Access: public pdf text. Terminal names only. Not an equipment signal assignment, cable construction tutorial or approved assembly. Raw source files are not bundled; linked observation and locator retained.

S526: full source recordInspect review dependencies → (private workspace)

Claim scope: NP3X panel C, component terminal names only; actual port role is equipment-specific.. Next review due 2027-01-09.

Back to first citation ↑
C022ESource checked · pending review

For Scarlett Solo 4th Gen, Focusrite documents a 6.35 mm TRS headphone output separately from balanced quarter-inch TRS line outputs 1 and 2 intended for an amplifier or active monitors.

Focusrite · Scarlett Solo 4th Gen: headphone and line-output roles ↗

Locator: Headphone Output and Speaker Outputs sections; page update 16-Jul-2026.
Access: public page. Named fourth-generation Solo only. Headphone versus balanced line-output role and TS/TRRS headphone warning; not universal device support. New scope on an already catalogued URL, not a new unique document. Raw source files are not bundled; linked observation and locator retained.

S528: full source recordInspect review dependencies → (private workspace)

Claim scope: Named fourth-generation Solo only; shared TRS form is not a headphone/line-output interchangeability approval.. Next review due 2027-01-09.

Suggest a correction to this field note →

Audio connection desk

Follow the signal beyond the plug

Signal roles, channel layouts and power requirements are distinct from connector shape. No hardware approval is implied.

Audio deskAudio patch sheet

Put this field note to work.

Add to discovery trayRecord an unsaved candidate (private workspace)

Candidate selection does not confirm the identity or capabilities of your physical item.

SOURCE-QUALIFIED AUDIO REFERENCE

Separate contact count from equipment role.

Neutrik NP3X

Role
Male cable plug; straight cable exit
Contacts
Three sections; panel C names Tip, Ring and Shield.
Meaning
The named drawing labels a 6.29 mm shaft. Three sections do not specify stereo or balanced use.
Not established
Channel mapping, balancing, current capability and fit with an unspecified socket remain unknown.
Next check
Identify both equipment ports and consult their signal assignments, not only the plug bands.
Inspect the declared view → (private workspace)
Evidence, observation & limits

Inspected . C022C · C022D

NP3X phone plug ↗
Technical information
Canonical source record S025 dated 2026-10-01. The V129 visit is recorded separately; inherited source dates are unchanged.

Neutrik NP3X customer drawing ST-NP3X ↗
Sheet 1 of 1; main elevation, diameter callout and title block dated 26-Jan-2004.
Canonical source record S525 dated 2026-10-11. The V129 visit is recorded separately; inherited source dates are unchanged.

Neutrik NP*X assembly instruction BDA 142-0 ↗
Single page; panel C terminal labels for NP2X and NP3X. Footer update 06-Nov-2010.
Canonical source record S526 dated 2026-10-11. The V129 visit is recorded separately; inherited source dates are unchanged.

No hardware test, independent technical approval or rights clearance is asserted.

Scarlett Solo 4th Gen / headphones and outputs 1–2

Role
Separate headphone and balanced line-output roles
Contacts
TRS is used in both roles; visible contact count does not select the destination.
Meaning
Outputs 1 and 2 are line-level connections for an amplifier or active monitors.
Not established
No headphone/line-output interchangeability, passive-speaker drive capability or unknown monitor pairing is approved.
Next check
Read the port label, equipment model and destination requirements before choosing the cable.
Inspect the declared view → (private workspace)
Evidence, observation & limits

Inspected . C022E

Scarlett Solo 4th Gen: headphone and line-output roles ↗
Headphone Output and Speaker Outputs sections; page update 16-Jul-2026.
Canonical source record S528 dated 2026-10-11. The V129 visit is recorded separately; inherited source dates are unchanged.

No hardware test, independent technical approval or rights clearance is asserted.

Read the illustrated audio chart and field guide →

Evidence behind this page

Scope first. Source second. Approval separate.

5 linked sources · 5 scoped claims · 0 sources with inspection/access flags.

Page scope: consumer_pilot

Assessment 2026-10-22 · earliest scheduled source review 2026-12-30. This is a recorded-date assessment, not a live source check. Page-level independent review is not established by this panel.

Inspect 5 source scopes, access limits and dates

S025 · NP3X phone plug

Neutrik · Manufacturer / product-owner domain · inspected 2026-10-01 · due 2026-12-30

Within inspection window

Scoped support: 1/4-inch 3-pole plug physical example.

Not established / limitations:

Locator: Technical information

S026 · Plugs and jacks FAQ

Neutrik · Manufacturer / product-owner domain · inspected 2026-10-01 · due 2026-12-30

Within inspection window

Scoped support: Contact count is not a universal channel or wiring assignment.

Not established / limitations:

Locator: Balanced / unbalanced contact use

S525 · Neutrik NP3X customer drawing ST-NP3X

Neutrik · Manufacturer / product-owner domain · inspected 2026-10-11 · due 2027-01-09

Within inspection window

Scoped support: Named NP3X drawing labels the shaft diameter 6.29 mm. No inference about every nominal quarter-inch connector.

Not established / limitations: Named NP3X drawing labels the shaft diameter 6.29 mm. No inference about every nominal quarter-inch connector. Raw source files are not bundled; linked observation and locator retained.

Locator: Sheet 1 of 1; main elevation, diameter callout and title block dated 26-Jan-2004.

S526 · Neutrik NP*X assembly instruction BDA 142-0

Neutrik · Manufacturer / product-owner domain · inspected 2026-10-11 · due 2027-01-09

Within inspection window

Scoped support: Terminal names only. Not an equipment signal assignment, cable construction tutorial or approved assembly.

Not established / limitations: Terminal names only. Not an equipment signal assignment, cable construction tutorial or approved assembly. Raw source files are not bundled; linked observation and locator retained.

Locator: Single page; panel C terminal labels for NP2X and NP3X. Footer update 06-Nov-2010.

S528 · Scarlett Solo 4th Gen: headphone and line-output roles

Focusrite · Manufacturer / product-owner domain · inspected 2026-10-11 · due 2027-01-09

Within inspection window

Scoped support: Named fourth-generation Solo only. Headphone versus balanced line-output role and TS/TRRS headphone warning; not universal device support. New scope on an already catalogued URL, not a new unique document.

Not established / limitations: Named fourth-generation Solo only. Headphone versus balanced line-output role and TS/TRRS headphone warning; not universal device support. New scope on an already catalogued URL, not a new unique document. Raw source files are not bundled; linked observation and locator retained.

Locator: Headphone Output and Speaker Outputs sections; page update 16-Jul-2026.

Trace 5 claims to their source records

C022A · P022

A 6.35 mm TRS plug has three conductive sections; the equipment determines their function.

Claim scope: Consumer identification / documented standard or product class only

Source links: S025 · Evidence trail → (private workspace)

C022B · P022

Neutrik distinguishes connector contact arrangements from balanced and unbalanced signal use.

Claim scope: Narrowly stated supporting distinction; not an end-to-end device guarantee

Source links: S026 · Evidence trail → (private workspace)

C022C · P022

Neutrik customer drawing ST-NP3X labels the NP3X shaft diameter as 6.29 mm, within a product sold as a nominal quarter-inch three-pole plug.

Claim scope: Exact NP3X sheet dated 26-Jan-2004; no universal geometry, tolerance or mating approval.

Source links: S025 · S525 · Evidence trail → (private workspace)

C022D · P022

Neutrik assembly instruction BDA 142-0 identifies Tip, Ring and Shield termination paths for NP3X; it does not assign a universal left/right or balanced-signal role to them.

Claim scope: NP3X panel C, component terminal names only; actual port role is equipment-specific.

Source links: S526 · Evidence trail → (private workspace)

C022E · P022

For Scarlett Solo 4th Gen, Focusrite documents a 6.35 mm TRS headphone output separately from balanced quarter-inch TRS line outputs 1 and 2 intended for an amplifier or active monitors.

Claim scope: Named fourth-generation Solo only; shared TRS form is not a headphone/line-output interchangeability approval.

Source links: S528 · Evidence trail → (private workspace)

Prepare this page for review → (private workspace)Read the evidence method →

Recorded evidence only. An inspection date, publisher label, source link or generated packet is not independent technical review, hardware testing, fabrication approval or a compatibility verdict.