Radial OX8-r 8-Channel Passive Microphone Splitter, Radial Transformers

Radial OX8-r: Silent Microphone Splitting for Every Console

The Radial OX8-r is an eight-channel passive microphone splitter that routes each mic to three separate consoles using Radial's own custom-wound transformers. It delivers the same core promise as the rest of the OX8 line, taking one microphone and feeding the front-of-house desk, the monitor desk, and a recording or broadcast system at the same time, with no hum and no crosstalk. When you need to split a full stage of inputs reliably and keep the rig dependable, the OX8-r is the transformer-isolated splitter that quietly gets the job done every night.

Passive Isolation That Just Works

Every channel of the OX8-r accepts one microphone and provides a hardwired direct output alongside two transformer-coupled outputs. The design is fully passive, so there is no power supply to fail and no active circuitry to introduce noise. The real job of the transformers is isolation: they break the ground path between the consoles fed from the same microphone, stopping the DC and ground currents that create hum and buzz whenever two mixing systems are tied together. That galvanic barrier is why a passive splitter delivers such a quiet, dependable feed even in venues with messy power.

The Radial Transformer Advantage

Where the OX8-j carries premium Jensen transformers, the OX8-r is fitted with Radial's own Eclipse MS10 transformers, a custom-wound design that provides genuine isolation and a solid split. It delivers a 20 Hz to 18 kHz frequency response and 0.005% total harmonic distortion at 1 kHz, with a full 140 dB of dynamic range. For the vast majority of live and monitor applications, where the split feed is one of dozens on a busy stage, this is more than enough fidelity, which makes it practical to equip multiple racks across a large system.

Built Around Real-World Microphones

The OX8-r handles the practical demands of a live input list. Its direct output is wired straight through to the input, so 48V phantom power from the main console reaches condenser microphones and active direct boxes without a break. A -36 dB pad on every channel lets you feed line-level or hot signals into the splitter without overdriving the transformers, and a front-panel ground lift on each auxiliary output clears up any ground loops between the separate systems you are feeding. Wax-pencil ID strips make labeling and troubleshooting a packed stage fast and painless.

Connectors and Rackmount Design

Packed into a single 19-inch rack space of tough 14-gauge steel, the OX8-r offers the same flexible connectivity as its Jensen-equipped sibling. Microphone inputs land on XLR connectors wired in parallel with a rear D-sub, while direct and isolated outputs are available on both DB-25 connectors for fast multi-channel harnesses and Phoenix Euroblock terminals for hardwired installations. It slots neatly into a touring splitter rack or a fixed broadcast wall with equal ease.

Who the OX8-r Is For

The OX8-r is aimed at sound companies, monitor engineers, and install techs who need dependable eight-channel microphone splitting without specifying premium transformers on every input. It is ideal for regional touring rigs, house-of-worship systems that share feeds with a recording or streaming setup, and rental inventories where robust, power-free isolation matters most. If your job is to get one microphone cleanly to three consoles, night after night, the OX8-r is the practical choice that never needs power and never adds noise.