Neutrik NC3MXX Male 3-Pin XLR Connector – Nickel Housing, Silver Contacts
Build reliable professional audio cables with the Neutrik NC3MXX Male 3-Pin XLR Cable Connector, part of Neutrik’s internationally recognised XX Series of professional XLR cable connectors.
The NC3MXX features a rugged nickel-plated zinc die-cast housing, silver-plated contacts, solder termination and Neutrik’s improved chuck-type strain-relief system, making it an excellent choice for microphone cables, balanced analogue audio, professional AV, broadcast, theatre, touring and production cable assemblies.
Neutrik describes the XX Series as the next generation of its widely accepted XLR cable-connector standard, with improvements designed to increase reliability, simplify assembly, improve contact integrity and strengthen cable strain relief.
Whether you are manufacturing new microphone leads, repairing touring cables, rebuilding venue inventory or maintaining professional production stock, the NC3MXX delivers the mechanical construction and serviceability expected from a genuine Neutrik professional connector.
Genuine Neutrik XX Series XLR Connector
The NC3MXX belongs to Neutrik’s XX Series, the successor to the earlier X Series of professional XLR cable connectors.
Neutrik redesigned the series to improve:
- Mechanical durability
- Cable strain relief
- Assembly
- Contact integrity
- Cable-bending protection
- Ergonomics
- Connector identification options
The NC3MXX uses an improved male locking recess without the traditional housing “window”, resulting in a more rigid connector shell and increased mechanical durability.
For technicians who regularly build or repair cables, those improvements make the XX Series particularly well suited to the repeated handling found in professional entertainment environments.
3-Pin Male XLR Cable Connector
The NC3MXX is a 3-pole male XLR cable connector.
Common professional applications include cable assemblies for:
- Microphones
- Mixing consoles
- Stage boxes
- Audio interfaces
- Wireless systems
- Signal distribution
- Theatre audio
- Touring audio
- Broadcast systems
- Recording studios
- Installed AV
- Production interconnects
- Appropriate 3-pin lighting/data applications
The connector uses solder contacts, allowing professional cable technicians to terminate conductors directly to the three connector pins. Neutrik specifies conductor sizes up to 2.5 mm² / 14 AWG.
Nickel-Plated Zinc Die-Cast Housing
The NC3MXX uses a rugged zinc die-cast shell with nickel plating.
This is the technically correct description of the silver-coloured metal body.
It should not be described as a chrome housing.
The nickel-plated metal shell provides the mechanical protection expected from a connector designed for demanding professional environments including:
- Concert touring
- Theatre
- Live events
- Recording studios
- Broadcast
- Film and television
- AV production
- Venue installations
- Equipment-hire inventory
For cables that are repeatedly plugged, unplugged, coiled, transported and handled by crews, the connector body forms an important part of the complete cable’s durability.
Silver-Plated Contacts
Neutrik specifies 2 µm silver plating over brass contacts in the NC3MXX.
The manufacturer specifies:
Contact resistance: ≤ 3 mΩ
Contact plating: 2 µm Ag
Contact material: Brass
Rated current per contact: 16 A
Rated voltage: < 50 V
These figures are connector component specifications and should always be considered in the context of the complete cable, equipment and applicable electrical standard.
The NC3MXX is primarily a professional signal connector and should not be treated as a substitute for an appropriate mains-power connector simply because its individual contacts carry an electrical current rating.
Improved Chuck-Type Strain Relief
One of the important features of Neutrik’s XX Series is its improved chuck-type strain-relief system.
Neutrik states that the design provides higher cable pull-out force while making assembly easier and faster.
Effective strain relief is particularly important in professional cable assemblies.
Without suitable strain relief, repeated pulling and bending can transfer mechanical stress directly to:
- Solder joints
- Conductors
- Cable shielding
- Connector contacts
The chuck system grips the cable jacket so that normal mechanical loads are managed by the connector assembly rather than relying solely on the soldered conductors.
That makes it particularly valuable for touring, theatre and live-event cable inventory where cables can experience considerable daily handling.
Polyurethane Cable Boot
The NC3MXX includes a polyurethane boot/gland designed to protect the cable against bending stresses where the cable exits the rear of the connector.
The rear of an audio cable is a common mechanical stress point because cables are frequently:
- Coiled
- Uncoiled
- Pulled from cases
- Connected in confined spaces
- Bent behind racks
- Routed through stage boxes
- Handled repeatedly during touring
Good bend protection helps distribute these forces across a larger section of cable rather than concentrating them directly at the termination point.
Suitable Cable Diameter
Neutrik specifies the standard NC3MXX for cable outside diameters from:
3.5mm to 8.0mm.
This covers a wide range of common professional microphone, balanced audio and signal cables.
Cable diameter should always be checked before assembly.
For larger cables, Neutrik manufactures dedicated XX-series variants such as the NC3MXX-14, designed for cable outside diameters from 8mm to 10mm.
Selecting the correct connector or boot configuration helps ensure the strain-relief system grips the cable correctly.
Solder-Termination Connector
The standard NC3MXX uses solder contacts.
This differentiates it from specialist variants such as the NC3MXX-HA, which uses crimp termination.
For professional cable building, solder termination allows technicians to create robust custom assemblies using appropriate cable, preparation and soldering techniques.
Correct workmanship remains important.
A quality connector cannot compensate for:
- Poor solder joints
- Excessive exposed conductor
- Incorrect pin assignment
- Damaged shielding
- Poor cable preparation
- Incorrect strain-relief assembly
Always inspect and electrically test completed cables before placing them into production service.
Professional Microphone Cables
One of the most common uses for the NC3MXX is building or repairing professional microphone cables.
A typical balanced microphone lead uses:
- One male 3-pin XLR connector
- One female 3-pin XLR connector
- Suitable balanced microphone cable
For many professional audio applications, standard XLR wiring convention uses:
Pin 1: Shield / ground
Pin 2: Positive / hot
Pin 3: Negative / cold
Always verify the wiring requirements of the equipment and cable system being serviced.
A well-built XLR lead is only as reliable as the complete combination of:
- Cable
- Connectors
- Soldering
- Strain relief
- Assembly
- Testing
Balanced Line-Level Audio
The NC3MXX is equally useful for balanced analogue line-level interconnects.
Potential applications include:
- Mixing consoles
- Stage racks
- Audio interfaces
- DSP systems
- Amplifier inputs
- Playback equipment
- System processors
- Broadcast equipment
- Recording systems
Balanced cabling is widely used in professional audio because it assists with noise rejection over longer cable runs when used with correctly designed equipment.
Theatre and Performing Arts
XLR infrastructure remains fundamental throughout theatre audio systems.
The NC3MXX can be used when manufacturing or repairing cables for:
- Wired microphones
- Stage boxes
- Mixing consoles
- Wireless receivers
- Playback systems
- Audio interfaces
- Communications equipment where the specified pinout uses 3-pin XLR
- Temporary production systems
For theatres maintaining large quantities of cable inventory, field-repairable connectors are especially useful because damaged cables can often be serviced rather than immediately discarded.
Keeping replacement connectors in the technical workshop or production workbox can reduce downtime during rehearsal and show periods.
Concert Touring and Live Events
Touring cable inventory experiences significant mechanical stress.
Cables are repeatedly:
- Deployed
- Coiled
- Packed
- Unpacked
- Connected
- Disconnected
- Loaded into cases
- Transported between venues
Neutrik’s rugged zinc die-cast shell, improved strain relief and polyurethane bend protection make the NC3MXX particularly suitable for professionally assembled touring cables.
Potential applications include:
- Touring microphone looms
- Stage audio
- Monitor systems
- FOH systems
- Playback racks
- Signal distribution
- Production audio
- Temporary AV systems
Film, Television and Broadcast
Professional film, television and broadcast environments also rely heavily on robust XLR signal connections.
Potential applications include:
- Location sound
- Studio audio
- Broadcast audio
- Interview microphones
- Production sound
- Wireless receiver outputs
- Mixing equipment
- Audio interfaces
- Recording equipment
Connector reliability becomes particularly important when equipment is frequently relocated between studios, stages and locations.
For production sound teams, a serviceable professional connector also allows damaged cables to be repaired rather than replacing an entire lead.
Recording Studios
The NC3MXX is equally at home in permanent and semi-permanent recording environments.
Potential uses include:
- Microphone leads
- Patch cables
- Outboard equipment
- Monitor systems
- Audio interfaces
- Wall-box connections
- Studio tie lines
- Recording racks
Although studio cables may not experience the same physical abuse as touring inventory, dependable contact integrity and serviceability remain important.
AV, Conference and Corporate Production
Professional AV companies regularly use 3-pin XLR across:
- Microphones
- Mixing consoles
- Audio interfaces
- DSP systems
- Powered loudspeaker signal inputs
- Presentation systems
- Conference audio
- Breakout systems
- Temporary event installations
For companies maintaining their own cable inventory, replacement NC3MXX connectors are useful for both new cable manufacture and routine workshop repairs.
XLR and Lighting / DMX Applications
Three-pin XLR connectors are encountered on some lighting and control equipment, particularly legacy and equipment-specific 3-pin DMX implementations.
However, it is important to distinguish the physical connector from the data standard and cable specification.
Neutrik itself describes its 3-to-5-pin DMX adaptors as solving interconnection between older 3-pole and newer 5-pole DMX implementations.
Where NC3MXX is used in a lighting/data application:
- Confirm the equipment actually uses 3-pin XLR
- Confirm the required pin assignment
- Use cable appropriate to the data system
- Do not assume ordinary microphone cable is suitable merely because the connector fits
- Test the finished cable appropriately
For standard professional DMX infrastructure, 5-pin XLR connectors remain an important part of the lighting connector ecosystem.
AES/EBU Digital Audio
A 3-pin XLR connector can also be used in appropriate professional digital-audio cable assemblies.
For AES3/AES/EBU applications, use cable specifically suited to the required digital impedance and transmission characteristics.
The connector alone does not determine whether a completed cable is suitable for digital audio.
Correct cable choice, termination quality and system design remain essential.
More Than 1,000 Mating Cycles
Neutrik specifies a mechanical lifetime of more than 1,000 mating cycles for the NC3MXX.
This makes the connector well suited to applications involving repeated connection and disconnection.
That includes:
- Touring cables
- Venue patching
- Rental stock
- Theatre productions
- Studio cables
- AV inventory
- Broadcast systems
The actual service life of a completed cable will also depend on handling, contamination, cable quality, assembly workmanship and maintenance.
IP40 Protection Class
Neutrik specifies the NC3MXX at IP40.
It should therefore not be marketed as a waterproof or weatherproof connector.
For outdoor production:
- Protect connections from rain and moisture
- Keep connectors out of standing water
- Use suitable weather protection
- Follow equipment and system requirements
An ordinary NC3MXX assembly should not be assumed suitable for exposed wet-weather operation simply because it is a rugged professional connector.
Temperature Range
Neutrik specifies an operating temperature range of:
-30°C to +80°C.
This broad component specification supports a wide range of professional environments, but the completed cable assembly will still be limited by the ratings of:
- Cable
- Solder
- Equipment
- Other connectors
- Installation method
Always assess the complete system rather than relying on one component specification.
Low Contact Resistance
The NC3MXX is specified with contact resistance of:
≤ 3 mΩ.
Neutrik also specifies:
Capacitance between contacts: ≤ 4 pF
Insulation resistance: > 10 GΩ initially
Dielectric strength: 1.5 kV DC.
These figures form part of the connector’s published electrical specification and demonstrate why the XX Series is used widely across professional signal applications.
Protected Internal Shell Thread
Neutrik specifically identifies the NC3MXX’s protected internal shell thread as a feature intended to reduce the chance of thread damage.
For technicians who routinely assemble and service connectors, protecting the threaded section can help make repeated workshop assembly more straightforward.
Coding and Identification Options
Neutrik supports optional coloured rings and boots for XX-series coding and identification.
Compatible accessories include XX-series colour coding rings and bushings.
This can be useful when production companies want to identify cables by:
- Length
- Department
- Signal type
- Venue
- System
- Ownership
- Production package
Neutrik also offers a transparent coding ring that allows custom labelling, branding or identification.
Male and Female Cable Pairing
For conventional professional XLR cable construction, the NC3MXX is commonly paired with a compatible female 3-pin XLR cable connector such as the Neutrik NC3FXX.
Using quality connectors at both ends of a cable helps create a serviceable professional assembly suited to repeated use.
Always select connector gender and wiring based on the equipment and system being connected.
Workshop and Cable-Repair Stock
Replacement XLR connectors are useful consumables for:
- Audio workshops
- Theatre technical departments
- Touring companies
- Equipment-hire businesses
- Broadcast facilities
- Schools
- Performing arts centres
- Production companies
A damaged connector does not necessarily mean an otherwise good cable needs to be discarded.
Where the cable itself remains serviceable, a technician may be able to remove the damaged connector and install a replacement NC3MXX.
The finished cable should then be properly tested before returning to service.
Schools and Performing Arts Centres
Schools with active music, theatre and performing-arts programs often maintain substantial quantities of microphone and audio cable.
The NC3MXX provides a professional connector option for:
- Replacement cable ends
- Custom cable building
- Theatre systems
- Music departments
- Recording facilities
- Performing arts venues
- Technical-production training
Cable manufacture and repair should be undertaken by people with the appropriate practical skills and testing equipment.
Equipment-Hire Companies
Hire inventory often sees more handling than permanently installed cable systems.
For equipment-hire businesses, the NC3MXX is useful for:
- Repairing damaged leads
- Building custom cable lengths
- Maintaining rental microphone cables
- Workshop spares
- Production prep
- Touring packages
Standardising connector families across an inventory can also simplify spare-parts management and technician familiarity.
Installation Considerations
When assembling an NC3MXX:
- Confirm the cable outside diameter is within the standard 3.5–8.0mm range.
- Slide the boot and strain-relief components onto the cable before soldering.
- Prepare conductors carefully.
- Confirm the required pin assignment.
- Create clean solder joints.
- Avoid excessive exposed conductor.
- Ensure shielding cannot short against signal contacts.
- Assemble the chuck strain relief correctly.
- Tighten the connector according to appropriate workshop practice.
- Electrically test the completed cable before use.
Professional assembly quality is just as important as connector quality.
Product Specifications
Brand: Neutrik
Model: NC3MXX
Series: XX Series
Connector Type: XLR cable connector
Gender: Male
Number of Poles: 3
Termination: Solder contacts
Housing: Zinc die-cast
Housing Finish: Nickel plated
Contacts: Brass
Contact Plating: 2 µm silver
Cable Outside Diameter: 3.5–8.0mm
Maximum Conductor Size: 2.5mm² / 14 AWG
Locking System: Latch lock
Contact Resistance: ≤ 3 mΩ
Capacitance Between Contacts: ≤ 4 pF
Insulation Resistance: > 10 GΩ initially
Dielectric Strength: 1.5 kV DC
Rated Current: 16 A per contact
Rated Voltage: < 50 V
Mechanical Life: >1,000 mating cycles
Protection Class: IP40
Temperature Range: -30°C to +80°C
Standard Compliance: IEC 61076-2-103
Boot Material: Polyurethane
Insert Material: PA66 polyamide
Strain Relief: Polyacetal chuck-type system.
Why Choose the Neutrik NC3MXX?
The NC3MXX is an excellent choice where professional cable construction requires:
- Genuine Neutrik quality
- Professional 3-pin male XLR connectivity
- Rugged metal construction
- Nickel-plated housing
- Silver-plated contacts
- Improved cable strain relief
- Solder termination
- Field serviceability
- More than 1,000 specified mating cycles
- Support for common professional cable diameters
- Optional colour coding
It is equally useful for new cable manufacture and the repair of existing professional XLR leads.
Why Buy Neutrik NC3MXX from GigLife?
GigLife supplies professional connectors, cables, adaptors, tapes, consumables and technical accessories specifically for the entertainment and production industries.
With more than 25 years of hands-on live entertainment industry experience, GigLife understands that a connector is not simply a component on a specification sheet—it becomes part of a cable that may be plugged, unplugged, coiled, toured, repaired and depended upon show after show.
Our products are selected by people who work in production and understand the requirements of:
- Audio professionals
- Theatre technicians
- Touring crews
- Production companies
- Film and television departments
- Broadcast facilities
- Recording studios
- AV companies
- Festivals
- Schools and performing arts centres
- Conference venues
- Exhibition contractors
- Equipment-hire businesses
Whether you are building microphone cables, repairing venue stock, preparing a touring package or maintaining your workshop inventory, GigLife supplies professional components chosen by people who understand the job.
Orders are dispatched from Brisbane, with Australia-wide shipping available.
GigLife is proudly by the professionals… for the professionals.
