Behringer FLOW 4VIO - Expander

The Behringer FLOW 4VIO Expander is a compact StageConnect I/O extender designed specifically for FLOW 4V mixers, giving you four extra microphone preamps, dual headphone outputs and flexible USB audio/MIDI connectivity in one rugged, camera-ready unit. Whether you are filming on location, recording on the move or expanding your live rig, it delivers clean audio, ultra-low latency and simple single-cable integration with compatible devices.

At its heart, FLOW 4VIO is all about extending what your FLOW 4V mixer can do without adding complexity. StageConnect technology carries multichannel audio and power down a standard XLR cable, so you can position the expander exactly where you need it on set or on stage. Add in 32-bit float-ready microphone preamps, a class-compliant USB interface and two independent headphone feeds, and you have a powerful, portable hub for modern content creation and live sound.

For creators working with cameras and tripods, the integrated 1/4-20 thread and supplied screw make it easy to mount FLOW 4VIO directly to your rig. Remote power options via USB-C or StageConnect keep cabling tidy and reliable, while the class-compliant design means quick plug-and-play operation with computers and compatible hosts. It is a practical, space-saving way to unlock more inputs, monitoring and routing without overhauling your existing setup.

StageConnect Expansion for FLOW 4V

FLOW 4VIO connects to FLOW 4V mixers via StageConnect, providing a simple I/O extension that travels over a single standard XLR cable. This carries multichannel audio at sub-millisecond latency with 24-bit uncompressed PCM at 44.1 or 48 kHz, so you can place the expander where it is most convenient while keeping your main mixer safely out of the way.

Four Additional Microphone Preamps

With four extra microphone preamps on tap, FLOW 4VIO lets you capture more voices and sources without adding a second mixer. Dual-stage A/D conversion is designed for ultimate dynamic range, supporting 32-bit float recording workflows and helping you handle everything from quiet dialogue to loud performances with confidence.

Flexible Monitoring with Dual Headphone Outputs

Two headphone outputs, each with its own level control, make FLOW 4VIO ideal for interviews, co-hosted podcasts, on-camera presenting or director/talent monitoring. Everyone can hear exactly what they need at a comfortable level, improving communication and reducing monitoring headaches on busy shoots or sessions.

USB Audio/MIDI and Remote Power

FLOW 4VIO also functions as a class-compliant 4 x 4 USB audio interface with MIDI, so it can slot straight into computer-based recording or streaming setups. Power can be supplied via the included USB-C adaptor or over StageConnect from compatible devices, including Behringer WING consoles, keeping your rig streamlined and adaptable.

• StageConnect I/O Extension for FLOW 4V - Expands your FLOW 4V mixer via a single XLR cable, carrying multichannel audio at sub-millisecond latency with 24-bit uncompressed PCM at 44.1/48 kHz. This simplifies cabling, extends your reach on stage or on set and keeps your main mixer in an optimal control position.
• Four High-Performance Mic Preamps - Adds four microphone preamps with dual-stage A/D converters that support 32-bit float recording. The wide dynamic range helps prevent clipping and preserves detail, making it easier to capture clean, usable audio in unpredictable real-world situations.
• Dual Independent Headphone Outputs - Two headphone outputs with separate level controls provide flexible monitoring for presenters, performers or crew. Each listener can tailor their volume without affecting the other, improving comfort and communication during recording or live production.
• Class-Compliant USB Audio/MIDI Interface - Functions as a 4 x 4 USB audio interface with MIDI, with no special drivers required on compatible systems. This allows FLOW 4VIO to integrate seamlessly with DAWs, streaming software and mobile rigs, giving you a compact hub for both audio and MIDI connectivity.

General

• Product Type: StageConnect I/O extender for FLOW 4V mixers
• Audio Transmission: StageConnect multi-channel audio
• Latency: Sub-millisecond (StageConnect)
• Audio Format (StageConnect): 24-bit uncompressed PCM
• Sample Rates: 44.1 kHz, 48 kHz

Inputs

• Microphone Preamps: 4
• Converter Type: Dual-stage A/D converters
• Recording Support: 32-bit float compatible signal path

Outputs

• Headphone Outputs: 2
• Headphone Controls: Separate level controls for each output

USB and MIDI

• USB Connectivity: USB-C
• USB Audio Interface: Class-compliant 4 x 4 channel
• MIDI: USB MIDI I/O

StageConnect

• Connection: Standard XLR cable
• Function: Audio transmission and remote power (from compatible devices)
• Compatibility: FLOW 4V mixers, Behringer WING StageConnect port and other compatible I/O devices
• Remote Power: Can power a connected FLOW 4V field recorder and mixer via single XLR cable (from compatible StageConnect source)

Power

• Primary Power: USB-C
• Power Adaptor: Included
• Alternative Power: Via XLR StageConnect from compatible devices

Mounting

• Mount: Integrated 1/4-20 thread
• Included Hardware: 1/4-20 screw
• Additional: Integrated allen-wrench