Monoprice 601510 4-pole NL4 Female Speaker Twist Connector

NL4 Female Speaker Connector

The Monoprice 601510 is a 4-pole NL4 female twist connector designed for professional audio applications. It enables installers and musicians to build or repair custom speaker cables with a secure locking mechanism. The connector accepts speaker wire up to 10 AWG and features a strain relief system to keep wiring secure. It is constructed from high-impact plastic for long-term durability in demanding environments.

4-Pole Capacity and Wire Limits

This connector handles four conductors in a single housing, supporting standard bi-amping or dual-channel speaker configurations. It comfortably terminates wire gauges up to 10 AWG, providing ample headroom for high-current professional loudspeaker runs. The spring-loaded lock release latch ensures a firm connection that resists accidental disconnection during use. It runs out of capacity when wire thickness exceeds the 10 AWG maximum or when more than four poles are required.

Thermals and Power Handling

The high-impact plastic housing insulates the contacts during normal high-power speaker operation. No active cooling is required as the connector is rated for the current carried by supported wire gauges. The twist-lock design maintains low contact resistance, minimising heat buildup at the termination point. There are no moving parts that generate noise, and power draw is determined entirely by the connected amplifier and speaker load.