Gear article

Neutrik NLT4FXX 4-Pin SpeakON Cable Plug

The Neutrik NLT4FXX is a heavy-duty four-pole female SpeakON cable connector designed for high-power loudspeaker and amplifier connections. It features a robust metal housing and an IP54 weather-protection rating, making it suitable for demanding professional live sound and touring environments.

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Overview

The Neutrik NLT4FXX belongs to the STX Series, a high-performance range of SpeakON connectors developed for extreme environments. Unlike standard plastic SpeakON plugs, the NLT4FXX utilizes a rugged metal shell to withstand the rigours of professional touring. It is a 4-pole female connector, commonly used for bi-amping configurations or high-wattage full-range speaker systems where reliability is paramount.

Design and Construction

The connector is built using a combination of a highly robust metal housing and glass-reinforced V-0 material for internal components, ensuring flame retardancy and structural integrity. A key technical feature is the chuck-type strain relief, which secures the cable internally to prevent damage from pulling or twisting. The unit also achieves an IP 54 protection rating, signifying resistance to dust and splashing water, which allows for consistent performance in outdoor settings.

Security and Connection

For secure operation, the NLT4FXX employs Neutrik's proprietary 'Quick Lock' system. This mechanism ensures that once the cable is inserted and twisted into position, it cannot be accidentally disconnected, providing optimised security for stage and studio audio signals. The four-pole configuration allows for the transmission of multiple signals, such as separate feeds for a woofer and a tweeter within a single enclosure.

Application and Suitability

This connector is primarily suited for professional audio engineers, rental houses, and touring musicians who require more durability than standard plastic connectors offer. It is ideal for high-power PA systems, subwoofers, and stage monitors. The weatherproof design specifically benefits festival stages and outdoor installations where equipment may be exposed to the elements.

Comparison to Alternatives

While Neutrik offers various SpeakON models, the NLT4FXX sits above the entry-level NL4FX series due to its metal construction and IP rating. Compared to standard cables like the Ernie Ball P06049 instrument cable or generic XLR patches, the NLT4FXX is a dedicated high-current connector not intended for low-level instrument or microphone signals. For lighting applications, users would typically look toward 5-pin DMX cables, such as the Adam Hall 5-star series, rather than SpeakON power connectors.

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Frequently asked questions

What is the primary function of the Neutrik NLT4FXX?
The Neutrik NLT4FXX is a 4-pole female SpeakON connector used to provide a secure, high-current connection between power amplifiers and loudspeakers. It is specifically designed for professional audio applications requiring high durability.
Does this connector provide any weather protection?
Yes, the NLT4FXX meets the IP 54 protection class standards. This means it is weatherproof and protected against dust ingress and splashing water, making it suitable for outdoor stage use.
What is the Quick Lock system?
The Quick Lock system is Neutrik's unique locking mechanism that secures the connector into the socket with a twist-lock action. This prevents accidental disconnections during live performances or studio sessions.
What materials are used in the construction of the NLT4FXX?
The connector features a highly robust metal outer housing and internal components made from glass-reinforced V-0 material. These materials provide maximum durability and flame retardancy.
How does the chuck-type strain relief work?
The chuck-type strain relief grips the cable tightly as the boot is tightened. This design improves the longevity of the cable by preventing mechanical stress at the internal solder or screw terminals.
How many poles does the NLT4FXX have?
It is a 4-pole (four-pole) connector. This allows it to carry two separate speaker signals simultaneously, which is often used for bi-amplified speaker setups.
Is the NLT4FXX compatible with standard 2-pole SpeakON sockets?
While 4-pole SpeakON connectors often fit into standard SpeakON sockets, the NLT4FXX is designed specifically for 4-pole configurations. Users should check the wiring of their specific hardware to ensure compatibility.
What is the typical price for a single NLT4FXX connector?
The typical price range for the Neutrik NLT4FXX is approximately £18.00 per unit. Prices may vary slightly depending on the retailer and quantity purchased.
Can this connector be used for lighting equipment?
No, this is a SpeakON connector intended for audio signals. For lighting, you would typically use specialized cables such as the Adam Hall 5 STAR Neutrik DMX 5-Pin Lighting Cable.
How does this compare to a standard XLR connector?
Unlike an XLR connector, such as the Neutrik NC3FRX which is used for low-voltage microphone signals, the NLT4FXX is designed for high-current speaker levels. SpeakON connectors offer a locking mechanism specifically rated for the power output of amplifiers.
Is this a male or female connector?
The NLT4FXX is a female cable connector. In the SpeakON ecosystem, the cable-end connectors are traditionally female, while the chassis-mounted sockets on speakers and amps are male.
Can I use this for instrument-to-amp connections like a guitar cable?
No, instrument cables like the Ernie Ball P06049 use 1/4-inch jacks for high-impedance signals. The NLT4FXX is strictly for connecting the output of a power amplifier to a loudspeaker.