Streambox moves video. ClearView Flex moves productions forward.
Streambox moves video. ClearView Flex moves productions forward. Live review with in-session comms, annotations, and up to 40 participants, over a private media network and fully managed by Sohonet’s 24/7 M&E team.
- Built-in comms, annotations, and video conferencing – no third-party tools
- Fully managed infrastructure – Sohonet handles setup, monitoring, and support
- Ultra low latency over a dedicated private media network

Viewing content is only half the story
High-quality video encoding and delivery is table stakes. Productions that need to review, discuss, annotate, and make creative decisions in real time need more than a video stream – they need a complete managed collaboration environment.
No built-in collaboration tools
A video encoder delivers the signal but doesn't provide a channel for the team conversation around it. Productions using encoder-only tools typically bolt on a separate conferencing platform – creating split-screen workflows, sync issues, and added technical complexity on both ends.
Self-managed – no specialist support
When a self-managed streaming setup fails mid-session, your team is troubleshooting alone. Streambox is a product you install and maintain – there's no 24/7 managed service team who owns the end-to-end delivery and can intervene when something goes wrong.
Public internet dependency
Streaming over public internet means your session performance is at the mercy of network conditions outside your control. On productions where real-time review consistency matters, that variability is a risk Sohonet's private network eliminates.
The complete managed remote review platform
ClearView Flex combines high-quality live streaming with the collaboration layer productions actually need, all on a managed infrastructure backed by 30 years of M&E expertise.
In-channel voice communication, on-screen annotation, and support for up to 40 simultaneous participants, all within the ClearView Flex session. No Zoom bolted on the side, no switching tools mid-review, no context lost between platforms.
ClearView Flex is a fully managed service, not a product you deploy and support yourself. Sohonet handles infrastructure setup, configuration, monitoring, and 24/7 support. When something needs attention, there's an M&E engineer on the other end of the phone.
ClearView Flex streams over Sohonet's private media network, dedicated, uncontended bandwidth optimised for M&E workflows. Ultra-low latency is consistent infrastructure performance, not public internet best-case.
The managed platform behind major Hollywood productions
ClearView Flex vs Streambox: the complete comparison
| Feature | Sohonet | Streambox |
|---|---|---|
| Built-in collaboration tools | In-channel comms, annotations, video conferencing, fully integrated | Video and audio transport only, no built-in conferencing or annotation |
| Service model | Fully managed, Sohonet owns setup, monitoring, and 24/7 support | Self-managed product, customer responsible for deployment and support |
| Network infrastructure | Sohonet private media network, dedicated uncontended bandwidth | Public internet and cloud, performance network-dependent |
| Viewer access | Any browser, tablet, phone, or Apple TV, zero download for viewers | Requires Streambox decoder or client software for viewing |
| Studio trust credentials | 100% of major Hollywood Studios. Nearly 30 years. Multiple Emmy Awards. | Established broadcast/post-production encoder with industry presence |
Trusted where performance and reliability are non-negotiable
100%
Major Hollywood Studios
30 years
M&E infrastructure
40
Viewers per session
Ultra low latency, frame-accurate
2x
Emmy Award winner
- End-to-end encrypted streaming
- Air-gapped architecture by default
- MPA-aligned and independently audited
- 24/7 white glove M&E support
"It was Disney who recommended ClearView Flex to me. Immediately, I could see that this was a game-changer. All of a sudden, we could review mixes in real time and bring everyone in on ClearView to look at material at the same time as if they were in the room."
Marcus Zalewski
Owner and Sound Mixer – Independent M&E Professional
Real-time remote audio review with distributed creative teams
See the complete managed collaboration experience in one session
A 30-minute demo covers streaming quality, in-channel collaboration, and what fully managed infrastructure means for your production.
Trusted by every major Hollywood Studio. Starting from £493/$683 per month.



