Ruth's sister internal power cable

Four-core aviation plug for audio

This locking four-core connector joins signal cables between professional audio devices such as stage systems, studio gear and KTV installations. The plug accepts wire diameters up to 8 mm and uses a secure docking mechanism to prevent accidental disconnection during use. Supplied as a single adapter, it is intended for installers and technicians who need a reliable interconnect for balanced audio lines.

Verify cable diameter and connector type

Before ordering, confirm that your existing signal cables have an outer diameter of 8 mm or less so they fit the connector body. Check that the equipment you are linking uses a compatible four-pin aviation-style socket, because this plug will not mate with standard XLR, TRS or RCA ports. The lock orientation should also match the panel cut-out on your rack or enclosure.

Replaces worn or missing locking plugs

The connector upgrades from loose screw-terminal blocks or non-locking plugs that can vibrate free in live-sound environments. The jump is worth it when a secure, tool-free connection is required for quick stage changes or permanent studio patching. It is not suited for buyers who need a multi-pin snake connector, a digital protocol interface or a power-carrying cable.