Behringer FLOW 4VIO Digital Audio Mixer for Video Production

FLOW 4VIO is an external expander and digital stagebox for FLOW 4V. It adds four dual-stage microphone preamps and two headphone amps, extending input and monitoring capacity for professional video production workflows.

FLOW 4VIO adds four no-clip mic preamps, doubling your system to a total of eight. Built to the exact same dual-stage, true 32-bit architecture as FLOW 4V, they deliver up to 142 dB of dynamic range. 

Expanded Headphone Monitoring
Need everyone to hear clearly on set? FLOW 4VIO adds two headphone amps, giving you three independent headphone outputs in total. They can drive very high-impedance over-ear headphones and also avoid distortion on lower impedance in-ears. No splitters, no workarounds.

Everything Over a Single Cable
Place FLOW 4VIO up to 40 meters away from FLOW 4V — using one cable. The key is StageConnect. It’s a professional digital connection that carries all signals and even power.

• Sub-millisecond latency, uncompressed digital audio
• On standard XLR mic cable up to 5 m
• On DMX cable up to 40 m
• Cable runs can be doubled using a StageConnect SC-RE Range Extender
FLOW 4VIO is a true StageConnect I/O box and can also be combined with any other StageConnect device such as WING.

FLOW 4V is an audio field recorder designed for modern video workflows. It captures crystal-clear multitrack audio on set, stays perfectly in sync with your camera, and lets you move faster from shoot to edit — whether you’re filming, streaming, or creating content.

FLOW 4V comes with 4 dual-stage mic preamps on board — and FLOW 4VIO seamlessly expands the system to 8 inputs without changing workflows or adding complexity.