NEUTRIK speakON STX Series 4-Pole Panel Mount Socket Connector NLT4MPXX 30208513

The NEUTRIK NLT4MPXX is a 4-pole speakON STX series panel mount socket engineered for high-current audio connections in professional sound reinforcement and installed systems. Its quick lock metal latch ensures a secure, vibration-resistant mating with 4-pole speakON cable connectors, while the zinc diecast housing with black chrome plating provides exceptional durability and shielding.

Advantages

This chassis connector delivers a continuous current rating of 40 A RMS per contact, with the ability to handle audio signals up to 50 A at 50% duty cycle, making it ideal for high-power amplifier-to-speaker links. The silver-plated brass contacts offer low contact resistance (< 2 mΩ) and support over 5000 mating cycles, ensuring long-term reliability. The D-size panel cutout allows for easy integration into standard rack panels, speaker enclosures, and patch bays.

Suitable for

• Professional touring sound systems and line arrays
• Fixed installations in theaters, stadiums, and houses of worship
• High-power subwoofer and full-range speaker cabinets
• Amplifier output panels and stage boxes
• Broadcast and recording studio patchbays

Key specifications

• Connector type: speakON STX series, 4-pole socket
• Mounting: panel mount, D-size cutout
• Termination: solder or 4.8 x 0.5 mm flat tabs
• Current rating: 40 A RMS continuous, 50 A audio signal (50% duty cycle)
• Voltage rating: 250 V AC
• Contact resistance: < 2 mΩ
• Dielectric strength: 4 kVdc peak
• Insulation resistance: > 1 GΩ
• Lifetime: > 5000 mating cycles
• Housing: zinc diecast, black chrome plated
• Contacts: brass, silver plated
• Flammability rating: UL94 V-0
• Temperature range: -30 °C to +80 °C

Recommendations

For reliable high-power audio connections, pair the NLT4MPXX with NEUTRIK NL4FX or NL4FC 4-pole cable connectors. Always ensure proper strain relief and use the correct panel cutout to maintain IP-rated sealing when required.