Radial Engineering

Radial Engineering SRA CATAPULT-TX4M 4-Channel Audio Snake

Route four balanced mic channels across Cat5/Cat6 without signal degradation — the Catapult TX4M turns network infrastructure into a precision audio snake.

$374.99*
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*Price sourced from Amazon.com. Last updated:Aug 27, 2026.Price and availability are subject to change — details.

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Overview

The Radial Engineering Catapult TX4M is the transmitter half of a system that replaces a traditional multi-core copper audio snake with a single Cat5 or Cat6 shielded twisted pair cable. Each of the four XLR inputs routes one balanced audio channel — analog or AES digital — through the unit and out via Neutrik Ethercon connectors. What this means in practice: you can run four mic channels from stage to front of house across pre-wired Cat6 infrastructure that already exists in many installed venues, eliminating the cost, weight, and setup time of traditional copper looms. The 14-gauge solid steel chassis is not a cosmetic specification — it reflects a structural decision that matters when this box lives in a stage pocket or gets kicked by a monitor wedge on load-in day.

The TX4M is the right tool for installed systems integrators and touring engineers who need to leverage existing Cat5/6 building wiring for audio distribution, or who want to reduce cable weight and bulk on touring rigs without sacrificing channel count. XLR thru-puts on each channel allow splits to local amp racks or monitor consoles without additional passive splitters. The built-in Ethercon ground lift reveals the product's professional DNA — it exists because ground loops are a real-world problem in venue environments with shared electrical infrastructure, and Radial engineered the solution into the hardware rather than leaving it for the FOH engineer to chase at showtime.

Key Features

Catapult Cat5 Audio Snake 4-ch TXM Mic

Specifications

Channels
4
Input Connectors
XLR (inputs and thru-puts)
Output Connectors
Neutrik Ethercon
Signal Compatibility
Analog or AES digital
Cable Type
Cat5 or Cat6 shielded twisted pair
Frame Construction
Solid 14-gauge steel
Ground Lift
Yes (Ethercon connection)
Weight
2.2 lbs
Dimensions
11.02 x 5.12 x 3.15 inches

Frequently Asked Questions

The TX4M requires a compatible Radial Catapult receiver unit on the far end — it is not compatible with standard IT network switches. The Neutrik Ethercon outputs carry analog or AES audio-over-Cat5, not Ethernet data packets.
The TX4M passes phantom power through from your console or preamp — it does not generate 48V internally. Your source device must supply phantom power on each channel where condenser mics are connected.
Yes. The TX4M is protocol-agnostic — the same XLR inputs and twisted-pair transmission handle both analog balanced audio and AES digital sources. You can mix signal types across channels depending on your system requirements.
The ground lift is specifically provided for the Ethercon cable connection to break ground loops that form when the audio snake shares physical infrastructure with other grounded systems in a venue. It does not affect the XLR input grounds.
The XLR thru-puts duplicate each channel's signal at the stage box, allowing local monitoring feeds, amp rack connections, or redundant recording splits without additional DI boxes or signal splitters downstream.