The Radial Catapult TX4 is a 4-channel audio snake designed to transmit analog or AES digital audio over standard shielded Cat 5 or Cat 6 cable. It allows balanced audio signals to be sent across long distances using commonly available network cabling, making it suitable for stage setups, return snakes, and room-to-room audio connections.

The TX4 input module features four female XLR inputs and four XLR thru connections, along with dual Ethercon connectors for Cat cable output. It is compatible with multiple Catapult receiver modules, offering flexible system configurations for different audio routing needs. Select versions are available with or without isolation transformers depending on application requirements.

A ground lift switch is included to help reduce hum and noise caused by ground loops. The unit is housed in a rugged 14-gauge steel enclosure with a durable powder-coated finish. Internal components are mounted on a double-sided PCB to enhance long-term reliability in touring and professional environments.