FIELD GUIDESource-led reference
Port & Cable

P127 / Audio / Connector

2-pole speakON loudspeaker connector

A two-pole speakON loudspeaker connector is a specific audio connector, not a mains or general power-supply plug.

Also called NL2 NL2FXX 2 pole speaker connector Speakon 2

Loudspeaker connection does not mean mains power.

Look for

Read the connector family and pole count in the amplifier and speaker documentation; do not rely on a twist-lock outline.

Claim inspection dates: 2026-10-03, 2026-10-11 · Independent review pending

2-pole speakON loudspeaker 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.

2-pole speakON loudspeaker 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.

2-pole speakON loudspeaker connector: fitted in place. Computer-generated illustration, not a photograph.

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

2-pole speakON loudspeaker connector: original recognition drawing, not to scale.

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

Image inspection / P127

See the view. Check its scope.

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

Neutrik NL2FXX-W-S: qualitative top exterior; no contact-face geometry. Original source-observed exterior study, not to scale. (private workspace)

P127 / Source-observed physical study

2-pole speakON

Neutrik NL2FXX-W-S

Qualitative top exterior; no contact-face geometry · Cable plug / cable end

Not to scale. Technical and rights review pending.

Inspect view & provenance (private workspace)

Application notes / Audio / P127

Can a two-pole cable use a four-pole chassis connector?

FIELD NOTES 04

For Neutrik NL2FXX-W-S, the manufacturer documents that mating path using +1/-1. This is a component statement, not approval of the amplifier and speaker wiring.

Identify first

Read the part and the device.

Read the exact part number; body color alone does not establish the circuit.

Still unresolved

Keep this requirement open.

Which equipment circuit uses +1/-1, and whether it is suitable for the load, still require the equipment manual.

Documented support · named example only

Does NL2FXX-W-S have a documented four-pole chassis mating path?

Yes, using +1/-1 according to Neutrik.

Boundary. Component mating only; this does not approve the connected amplifier/speaker circuit.

Next check. Check the equipment’s use of those contacts before connecting.

S102 · C127D (private workspace)

Explicit source exclusion · named example only

Does NL2MPXX accept a four-pole cable connector?

No: Neutrik explicitly excludes that combination.

Boundary. Do not reverse the separate NL2FXX-W-S two-to-four statement.

Next check. Identify a manufacturer-documented cable/chassis pair.

S496 · C128D (private workspace)

Before choosing an adapter or reader

  1. Identify the cable and chassis parts.
  2. Check the documented equipment circuit.
  3. Do not use speakON for AC mains or disconnect it to interrupt current.
Read the evidence and its scope · 3 observations

C127A (private workspace) — Neutrik NL2FXX-W-S is a two-contact speakON connector.

Identification and explicitly scoped documentation only; not an end-to-end connection approval

S102

C127B (private workspace) — Neutrik excludes AC mains and power-supply use and warns against interrupting current with this connector.

Identification and explicitly scoped documentation only; not an end-to-end connection approval

S102

C127D (private workspace) — Neutrik NL2FXX-W-S is documented to mate with two-pole and four-pole chassis connectors, using contacts +1/-1.

Named two-pole cable connector mating statement. This is not four-circuit connectivity or approval of equipment wiring.

S102

Source interpretation is not independent engineering review, hardware testing, wiring advice or a public-release approval.

Inspect the named exterior · Neutrik NL2FXX-W-S
Neutrik NL2FXX-W-S: qualitative top exterior; no contact-face geometry. Original source-observed exterior study, not to scale.
Original qualitative exterior only. No pin numbers, wiring, exact mating geometry or independent approval. Qualitative exterior; not to scale.

Two-pole cable connector; Qualitative top exterior; no contact-face geometry. Manufacturer NL2FXX-W-S top-view product photograph. Nose, latch and rear bushing observed; printed marks not reproduced.

Original source-scoped paraphrase and qualitative vector interpretation; no manufacturer raster artwork republished. Independent technical and rights review remains pending.

S102 · S499 · Read the application notes →

The useful distinction

Recognize it. Then verify it.

A two-pole speakON loudspeaker connector is a specific audio connector, not a mains or general power-supply plug. [C127A]

Neutrik excludes AC mains and power-supply use and warns against interrupting current with this connector. [C127B]

Neutrik NL2FXX-W-S is documented to mate with two-pole and four-pole chassis connectors, using contacts +1/-1. [C127D]

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 contacts2S102Nominal contact count; some implementations may omit populated positions. It is not a wiring map.
Connector rolecable socket (NL2FXX-W-S)S917Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. NL2FXX-W-S. Documented role: cable socket. Current product PDF differs from olderBDA63830Arating. Preserve old source record and contextualize dates.; Not for ACmains or power supply use; not for interrupting current. Acceptance diameter6–12mm is not connector width.
Mountingcable (Claim C127C)S102 · S194Recorded source-scoped values; named examples do not describe every family variant or establish compatibility. Terminal designations for the named speakON cable-connector family only; not an amplifier channel assignment or live-connection approval
Coupling / latchTwist lock; mechanically aligned insert/chuck/housing (NL2FXX-W-S)S917Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. NL2FXX-W-S. Documented role: cable socket. Current product PDF differs from olderBDA63830Arating. Preserve old source record and contextualize dates.; Not for ACmains or power supply use; not for interrupting current. Acceptance diameter6–12mm is not connector width.
ManufacturerNeutrik (NL2FXX-W-S)S917Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. NL2FXX-W-S. Documented role: cable socket. Current product PDF differs from olderBDA63830Arating. Preserve old source record and contextualize dates.; Not for ACmains or power supply use; not for interrupting current. Acceptance diameter6–12mm is not connector width.
SeriesspeakON 2-pole (NL2FXX-W-S)S917Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. NL2FXX-W-S. Documented role: cable socket. Current product PDF differs from olderBDA63830Arating. Preserve old source record and contextualize dates.; Not for ACmains or power supply use; not for interrupting current. Acceptance diameter6–12mm is not connector width.
Exact part / implementationNL2FXX-W-S (NL2FXX-W-S)S917Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. NL2FXX-W-S. Documented role: cable socket. Current product PDF differs from olderBDA63830Arating. Preserve old source record and contextualize dates.; Not for ACmains or power supply use; not for interrupting current. Acceptance diameter6–12mm is not connector width.

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

Recorded variant and source limits
  • Amplifier channel assignment, polarity convention outside the named product documentation and system wiring remain device-specific.
  • Generic mating dimensions are not published.
  • Neutrik 2-pole speakON contact designations (NL2MP chassis, NL2FXX cable): Contact designations as moulded/printed by Neutrik; BDA 458 shows the NL2MP from the mating side, BDA 638 shows the cable insert wiring side.
  • Neutrik NL2MP chassis connector contact designations: Neutrik contact designations 1+ and 1- as printed on the insert; BDA 458 shows the NL2MP from the rear (FASTON tab) side. Positions are not transferred to the mating face.
  • Prior view context (not a source-view value): Terminal labels only; no mating-face geometry is asserted in the V35 data model.
Report a correction to these facts →

Bounded facts, visible unknowns

Specifications and limits

2-pole speakON loudspeaker connector facts and limitations
Documented identificationNeutrik NL2FXX-W-S is a two-contact speakON connector. [C127A]
Important distinctionNeutrik excludes AC mains and power-supply use and warns against interrupting current with this connector. [C127B]
Mechanical dimensionsNo independently approved mechanical dimensions. Do not use this record for fabrication or fit testing.
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.

Record the exact device model and the label beside the port. Obtain its manual and the accessory documentation. Keep unknown properties unknown instead of filling them from a visually similar item.

Before you connect

What to check

  1. Confirm the exact amplifier output and loudspeaker input.
  2. Follow manufacturer instructions with the equipment de-energized.
  3. Never substitute this for mains or power-supply connectors.
Trace a supported connection class →

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

Neutrik 2-pole speakON contact designations (NL2MP chassis, NL2FXX cable)

View and evidence limits

Contact designations as moulded/printed by Neutrik; BDA 458 shows the NL2MP from the mating side, BDA 638 shows the cable insert wiring side.

  • P127 speakON 2-pole — **Agree** (contacts 1+ and 1−) — Neutrik only; no amplifier document found by either pass.
  • The designation identifies the contact only; what it carries is set by the equipment.
  • No amplifier or loudspeaker manual specifically using 2-pole speakON was retrieved.
  • Intermating behaviour (which receptacle contacts a 2-pole plug engages) was not established from a Neutrik document in this pass.
2-pole speakON terminal-designation referenceContact designations as moulded/printed by Neutrik; BDA 458 shows the NL2MP from the mating side, BDA 638 shows the cable insert wiring side.SCHEMATIC · physical positions unconfirmedNot to scale · check the named wiring and device manual1+: 1+ (single_source)1+1-: 1- (single_source)1-powergrounddataConfigshieldNCUnknown
Schematic only · physical contact positions unconfirmed. Original drawing · not to scale. Scroll sideways if needed.
Neutrik 2-pole speakON contact designations (NL2MP chassis, NL2FXX cable) — source-scoped contact map
PinSignalWhat it doesStatus
1+1+Control, detection or configuration connection; check the source and device.Single source
Sources
1-1-Control, detection or configuration connection; check the source and device.Single source
Sources
Sources (3)

Neutrik NL2MP chassis connector contact designations

View and evidence limits

Neutrik contact designations 1+ and 1- as printed on the insert; BDA 458 shows the NL2MP from the rear (FASTON tab) side. Positions are not transferred to the mating face.

  • P127 speakON 2-pole — **Agree** (contacts 1+ and 1−) — Neutrik only; no amplifier document found by either pass.
  • No amplifier or loudspeaker manual that uses an NL2 chassis connector and states its signal assignment was located in this pass; only Neutrik's contact designations and polarity legend are recorded.
  • Behaviour of NL2 plugs in NL4 sockets is not stated in the documents read.
2-pole speakON terminal-designation referenceNeutrik contact designations 1+ and 1- as printed on the insert; BDA 458 shows the NL2MP from the rear (FASTON tab) side. Positions are not transferred to the mating face.SCHEMATIC · physical positions unconfirmedNot to scale · check the named wiring and device manual1+: 1+ (single_source)1+1-: 1- (single_source)1-powergrounddataConfigshieldNCUnknown
Schematic only · physical contact positions unconfirmed. Original drawing · not to scale. Scroll sideways if needed.
Neutrik NL2MP chassis connector contact designations — source-scoped contact map
PinSignalWhat it doesStatus
1+1+Control, detection or configuration connection; check the source and device.Single source
Sources
1-1-Control, detection or configuration connection; check the source and device.Single source
Sources
Sources (2)

What is not established

This field note does not approve a connection, publish a pinout or provide a measured template. Use the linked source scope and the checklist as a documentation starting point.

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 ↑
C127ASource checked · pending review

Neutrik NL2FXX-W-S is a two-contact speakON connector.

Neutrik · NL2FXX-W-S two-pole speakON ↗

Locator: Product; Electrical / contact count; Attention
Access: public page. No current-rating recommendation, wiring instructions or powerCON interchangeability.

S102: full source recordInspect review dependencies → (private workspace)

Claim scope: Identification and explicitly scoped documentation only; not an end-to-end connection approval. Next review due 2027-01-01.

Back to first citation ↑
C127BSource checked · pending review

Neutrik excludes AC mains and power-supply use and warns against interrupting current with this connector.

Neutrik · NL2FXX-W-S two-pole speakON ↗

Locator: Product; Electrical / contact count; Attention
Access: public page. No current-rating recommendation, wiring instructions or powerCON interchangeability.

S102: full source recordInspect review dependencies → (private workspace)

Claim scope: Identification and explicitly scoped documentation only; not an end-to-end connection approval. Next review due 2027-01-01.

Back to first citation ↑
C127DSource checked · pending review

Neutrik NL2FXX-W-S is documented to mate with two-pole and four-pole chassis connectors, using contacts +1/-1.

Neutrik · NL2FXX-W-S two-pole speakON ↗

Locator: Product; Electrical / contact count; Attention
Access: public page. No current-rating recommendation, wiring instructions or powerCON interchangeability.

S102: full source recordInspect review dependencies → (private workspace)

Claim scope: Named two-pole cable connector mating statement. This is not four-circuit connectivity or approval of equipment wiring.. Next review due 2027-01-09.

Suggest a correction to this field note →

Put this field note to work.

Add to discovery trayRecord an unsaved candidate (private workspace)

Compare look-alikes: Two-pole versus four-pole speakON · 2-, 4- and 8-pole speakON

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

Evidence behind this page

Scope first. Source second. Approval separate.

1 linked sources · 3 scoped claims · 0 sources with inspection/access flags.

Page scope: consumer_reference_expansion

Assessment 2026-10-22 · earliest scheduled source review 2027-01-01. This is a recorded-date assessment, not a live source check. Page-level independent review is not established by this panel.

Inspect 1 source scopes, access limits and dates

S102 · NL2FXX-W-S two-pole speakON

Neutrik · Manufacturer / product-owner domain · inspected 2026-10-03 · due 2027-01-01

Within inspection window

Scoped support: Two-contact speakON loudspeaker connector; not for mains or power supply use; not for interrupting current.

Not established / limitations: No current-rating recommendation, wiring instructions or powerCON interchangeability.

Locator: Product; Electrical / contact count; Attention

Trace 3 claims to their source records

C127A · P127

Neutrik NL2FXX-W-S is a two-contact speakON connector.

Claim scope: Identification and explicitly scoped documentation only; not an end-to-end connection approval

Source links: S102 · Evidence trail → (private workspace)

C127B · P127

Neutrik excludes AC mains and power-supply use and warns against interrupting current with this connector.

Claim scope: Identification and explicitly scoped documentation only; not an end-to-end connection approval

Source links: S102 · Evidence trail → (private workspace)

C127D · P127

Neutrik NL2FXX-W-S is documented to mate with two-pole and four-pole chassis connectors, using contacts +1/-1.

Claim scope: Named two-pole cable connector mating statement. This is not four-circuit connectivity or approval of equipment wiring.

Source links: S102 · 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.