Sound Devices AC-BALXLR-4 Balanced Audio Cable

Reliable Balanced Connectivity for Professional Microphones
The Sound Devices AC-BALXLR-4 is a 21.5-inch balanced audio cable designed to interface balanced microphones with wireless transmitters that use the newer 3-pin ODU connector. With its female 3-pin XLR on one end and updated ODU connector on the other, this cable ensures high-quality signal transmission and compatibility with modern digital wireless systems. It’s an essential accessory for professionals who demand clean audio and rugged durability on location or in the studio.

Reduces RF Interference in High-Noise Environments
One of the key benefits of the AC-BALXLR-4 is its integrated RF filter, which reduces radio frequency interference by approximately 40 dB. This added shielding is crucial when working in environments with heavy RF activity, such as film sets, concert stages, or locations with dense wireless device usage. The result is cleaner audio and more reliable operation with fewer dropouts or noise artifacts.

Built for Field Use with Improved Durability
Compared to its predecessors, the AC-BALXLR-4 offers enhanced physical design. A more robust strain relief at both ends protects the cable from wear and tear during frequent setups and breakdowns. The cable jacket and connectors are built to withstand the rigors of field recording, making it a dependable choice for ENG, broadcast, and production workflows where cables are often pulled, coiled, and packed under pressure.

Extended Length for Flexible Rigging
At 21.5 inches long, this version of the cable gives users extra slack to work with compared to the AC-BALXLR-3. That added length makes it easier to run through bodypacks, conceal in wardrobes, or route neatly through camera rigs or carts. Whether you're wiring talent or integrating into complex production setups, the extra cable length helps minimize strain on connectors and allows for cleaner routing.

Updated ODU Connector for Newer Transmitters
The AC-BALXLR-4 uses the newer 3-pin ODU connector rather than the older LEMO configuration. This makes it fully compatible with newer Sound Devices digital transmitters that support ODU inputs, such as the A20-TX. It’s the right cable for users who are upgrading their wireless systems and want accessories that match the latest industry hardware.