Radial Catapult RX4L

Radial Catapult RX4L

Radial Engineering

  • €215,00
20% VAT included.


4ch receiver, balanced outs, line-level transformers, uses shielded cat-5

  • Send four channels of analog audio over a single Cat 5/6 cable
  • Works with a building’s existing cable infrastructure
  • Choice of direct-wired or transformer isolated splits
  • Economical Cat 5/6 cable replaces bulky multi-channel audio snakes

Analog audio over Cat 5 wiring

The Catapult TX4 and RX4 act like a typical four-channel analog audio snake; they allow you to send mic or line-level signals from one location to another without signal loss, noise, or interference, and without any digital audio conversion needed. What makes the Catapult system unique is that it utilizes Cat 5 Ethernet cable, which is widely available, lightweight, and economical. Simply connect a shielded Cat 5 cable between any two Catapult modules and they will use the analog conductors in the cable to deliver four balanced audio lines to any destination.

Straight-wire passive operation

Catapult modules require no power to operate, and since they keep the signal in the analog realm, no digital conversion is necessary. Straight-wire connection from the XLRs to the RJ45 connector on a Cat 5 cable ensures that your audio passes through without coloration or distortion.

Utilize pre-existing cable installations

As many buildings are already pre-wired for Cat 5, you can take advantage of this to transmit audio between distant rooms without the need to install or supply new cabling. This eliminates the need for bulky and expensive multi-channel audio cable, and allows contractors to benefit from installed network cable and easily connect from one room to another.

Mix & Match to add transformer isolation

All of the Radial Catapult modules are compatible with each other, and each is sold individually, so you can select whichever combination best suits your needs. The Catapult RX4 and TX4 can be used together as a pair, creating a 4-channel audio snake. However, if you need transformer isolation to prevent hum and buzz when splitting audio signals, two additional models of Catapults are available. The TX4L and RX4L have line level isolation transformers for splitting playback tracks or outputs to amp racks, while the TX4M and RX4M can be employed when splitting mic signals on stage. Use any combination of these six models, along with the compact Catapult Mini RX and TX to create a custom snake designed for your unique application.


The Catapult TX4L and RX4L are four-channel line level splitters and isolators that allow you to split four audio channels and transmit them over a single standard cat5 shielded twisted pair cable. This allows you to split line level signals between three different destinations, either on stage or using a buildings existing Cat 5 or Cat 6 cabling to route the signal. Each unit features line level isolation transformers which help to eliminate buzz and hum caused by ground loops, saving hours of troubleshooting. The TX4L has four XLR-F inputs and four isolated XLR-M outputs, while the RX4L has four direct XLR-M outputs and four isolated XLR-M outputs. Both units feature RJ45 type Ethercon connections with ground lift switches.


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