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Neutrik NL4MPXX 4-Pole Speakon Panel Socket - Square Flange

£299
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Description

The Neutrik NL4MPXX is a 4-pole Speakon panel socket designed for chassis mounting in PA speakers, amplifier racks, and fixed audio installations. The socket features a 25 x 30mm square metal flange with two screw mounting holes and solder terminals on the rear for direct cable connection. The 4-pole configuration supports bi-amped speaker systems and high-power applications where separate woofer and tweeter feeds run through a single connector.

Used in professional PA cabinets, powered speaker enclosures, and amplifier back panels, the NL4MPXX provides the industry-standard Speakon locking connection between amplifiers and speakers. The twist-lock mechanism on compatible Speakon plugs prevents accidental disconnection during transport or live use, while the rated current capacity handles high-wattage amplifier outputs without thermal degradation at the connection point.

The square flange mounts flush to flat panels using two M3 or similar screws, with the flange sitting proud of the panel surface to accept the depth of the mating plug. Solder terminals on the rear accept cable cores up to 2.5mm², allowing direct termination of speaker cable without intermediate connectors. The metal construction of the flange and the reinforced plastic body provide mechanical strength at the mounting points where the socket is repeatedly connected and disconnected.

Downloads

Product Manual

Frequently Asked

What cable gauge can the terminals accept?

The solder terminals accept cable cores up to 2.5mm². For professional PA use, 2.5mm² or 4mm² speaker cable is typical. Check the Neutrik datasheet in the Downloads section for exact terminal dimensions.

What's the rated current per pole?

Neutrik Speakon sockets typically rate at 40A per contact for the NL4 series. This allows the connector to handle high-power amplifier outputs in touring and fixed installation PA systems.

What panel thickness does it suit?

The NL4MPXX mounts to panels between 1.5mm and 6mm thick. Thicker panels may require recessing or counter-boring the mounting area to allow the rear of the socket body to clear the panel.

Is the flange compatible with round panel cutouts?

No. The NL4MPXX has a square 25 x 30mm flange. For round chassis mounting, Neutrik produces the NL4MP-ST series with a circular D-size flange that fits standard circular panel cutouts.

Shipping & Returns

Free worldwide delivery

Free worldwide delivery on all orders over £99. International orders for third-party brand products may be subject to an additional courier surcharge based on volumetric weight, particularly on larger lighting fixtures — if a surcharge applies, our team will email you with the amount before dispatch and you can proceed or cancel for a full refund. See full delivery terms.

Returns

30-day returns window from delivery. As all our products are electrical or lighting goods, returned items must be inspected and recertified by a qualified electrician before resale — the cost of this inspection (25–40% of the item value) is deducted from your refund. Customers pay return shipping. Made-to-order, special-order and clearance items cannot be returned. See full returns policy.

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    Description

    The Neutrik NL4MPXX is a 4-pole Speakon panel socket designed for chassis mounting in PA speakers, amplifier racks, and fixed audio installations. The socket features a 25 x 30mm square metal flange with two screw mounting holes and solder terminals on the rear for direct cable connection. The 4-pole configuration supports bi-amped speaker systems and high-power applications where separate woofer and tweeter feeds run through a single connector.

    Used in professional PA cabinets, powered speaker enclosures, and amplifier back panels, the NL4MPXX provides the industry-standard Speakon locking connection between amplifiers and speakers. The twist-lock mechanism on compatible Speakon plugs prevents accidental disconnection during transport or live use, while the rated current capacity handles high-wattage amplifier outputs without thermal degradation at the connection point.

    The square flange mounts flush to flat panels using two M3 or similar screws, with the flange sitting proud of the panel surface to accept the depth of the mating plug. Solder terminals on the rear accept cable cores up to 2.5mm², allowing direct termination of speaker cable without intermediate connectors. The metal construction of the flange and the reinforced plastic body provide mechanical strength at the mounting points where the socket is repeatedly connected and disconnected.

    Downloads

    Product Manual

    Frequently Asked

    What cable gauge can the terminals accept?

    The solder terminals accept cable cores up to 2.5mm². For professional PA use, 2.5mm² or 4mm² speaker cable is typical. Check the Neutrik datasheet in the Downloads section for exact terminal dimensions.

    What's the rated current per pole?

    Neutrik Speakon sockets typically rate at 40A per contact for the NL4 series. This allows the connector to handle high-power amplifier outputs in touring and fixed installation PA systems.

    What panel thickness does it suit?

    The NL4MPXX mounts to panels between 1.5mm and 6mm thick. Thicker panels may require recessing or counter-boring the mounting area to allow the rear of the socket body to clear the panel.

    Is the flange compatible with round panel cutouts?

    No. The NL4MPXX has a square 25 x 30mm flange. For round chassis mounting, Neutrik produces the NL4MP-ST series with a circular D-size flange that fits standard circular panel cutouts.

    Shipping & Returns

    Free worldwide delivery

    Free worldwide delivery on all orders over £99. International orders for third-party brand products may be subject to an additional courier surcharge based on volumetric weight, particularly on larger lighting fixtures — if a surcharge applies, our team will email you with the amount before dispatch and you can proceed or cancel for a full refund. See full delivery terms.

    Returns

    30-day returns window from delivery. As all our products are electrical or lighting goods, returned items must be inspected and recertified by a qualified electrician before resale — the cost of this inspection (25–40% of the item value) is deducted from your refund. Customers pay return shipping. Made-to-order, special-order and clearance items cannot be returned. See full returns policy.