4-Pin Neutrik Style Square Panel Mount Speakon Socket – Compact Locking Audio Connector for Power Amplifier & Stage Rack

Neutrik-style 4-pin Speakon panel mount sockets (NL4MP compatible) in a square panel mount format for installation in power amplifier rear panels, speaker cabinets, stage rack equipment, and custom audio enclosures. The square panel mount design provides a flush, professional finish on equipment panels. The twist-lock mechanism accepts NL4FC cable connectors — a quarter-turn locks the cable connector to the panel socket, preventing accidental disconnection during live performance. Compatible with standard 4-pin Speakon cable connectors (NL4FC).

Key Specifications

• Type: 4-pin Speakon panel mount socket (NL4MP compatible)
• Mount Style: Square panel mount (D-sub style cutout)
• Current Rating: 30A per contact
• Voltage Rating: 250V AC
• Contact Material: Copper alloy, silver-plated
• Housing Material: PA66 nylon, flame retardant
• Panel Cutout: 24×24mm (square, D-sub style)
• Compatible Cable Connector: NL4FC (4-pin Speakon cable plug)
• Quantity: 4, 10, or 20 pieces (select above)

Square Panel Mount vs Round Panel Mount Speakon Sockets

• Round panel mount (NL4MP-R): Circular cutout, 24mm diameter. Standard for speaker cabinets and amplifiers where a round cutout is preferred. More common in OEM speaker cabinet manufacturing.
• Square panel mount (this product): Square cutout, 24×24mm. Provides a flush, rectangular panel finish. Preferred for rack equipment, custom enclosures, and applications where a square cutout is more practical to cut with a router or drill press.
• Functional difference: None. Both accept the same NL4FC cable connector and provide identical electrical performance. The difference is purely the panel cutout shape and mounting flange geometry.

4-Pin Speakon Wiring — Standard Pin Assignment

• 1+ and 1-: First speaker circuit (primary channel). For standard mono speaker connections, use only 1+ and 1-.
• 2+ and 2-: Second speaker circuit. For bi-amplified speakers (separate HF and LF amplifier channels) or dual-voice-coil subwoofers.
• A 2-pin Speakon cable connector (NL2FC) mates with a 4-pin socket using only the 1+/1- contacts — backward compatible.

Frequently Asked Questions

What panel cutout size do I need for this socket?

The square panel mount requires a 24×24mm square cutout. Cut with a router, oscillating tool, or drill press with a square punch. The mounting flange overlaps the cutout and is secured with two M3 screws through the flange holes. Verify the cutout dimensions against the specific socket datasheet before cutting — dimensions may vary slightly between manufacturers.

Can I use this socket with 2-pin Speakon cable connectors?

Yes. 2-pin Speakon cable connectors (NL2FC) mate with 4-pin panel sockets using the 1+ and 1- contacts. The 2-pin connector physically fits into the 4-pin socket and locks correctly. The 2+ and 2- contacts in the socket remain unconnected.

How do I wire the panel socket?

The panel socket has solder terminals on the rear labeled 1+, 1-, 2+, 2-. For standard mono amplifier output: solder the positive amplifier output wire to 1+, and the negative (return) wire to 1-. Leave 2+ and 2- unconnected for mono applications. For bi-amp: connect LF amplifier output to 1+/1-, HF amplifier output to 2+/2-. Verify the speaker cabinet’s internal wiring matches the bi-amp pin assignment before connecting.

Are these compatible with genuine Neutrik NL4FC cable connectors?

Yes. These sockets follow the Speakon standard and are mechanically compatible with genuine Neutrik NL4FC cable connectors. For touring and rental applications requiring guaranteed compatibility and maximum reliability, specify genuine Neutrik NL4MP panel sockets.

Typical Applications

• Power amplifiers: Rear panel speaker output connections
• Speaker cabinets: Input socket for passive speaker cabinets
• Stage rack equipment: Speaker distribution panels, patch bays
• Custom audio enclosures: DIY amplifier and speaker cabinet builds
• Installation audio: Fixed speaker system connection points in venues

Package Contents

4, 10, or 20 pieces (select above) — 4-pin Speakon square panel mount sockets (NL4MP compatible). Mounting screws included.