Four universe CRMX transmitter and DMX node with built-in wireless router
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Control four wireless DMX universes across a vast array of protocols with this powerful, production-ready transmitter.
Universes of control
Sidus Four is an all-in-one lighting network device. Control four CRMX universes plus an additional four DMX universes with the built-in Ethernet node.
Connect multiple Sidus Fours via the integrated Ethernet switch to expand your capabilities for big jobs.
Speak to your lights
Sidus Four communicates over a wide range of control protocols: 5.8Ghz WiFi, 2.4 Ghz CRMX, DMX, Art-Net, sACN, and Sidus Bluetooth. Transmit up to 800m with the powerful five-antenna array.
Production ready
Easily check network vitals with the clear, color-coded display. Run off AC power or V-mount batteries, and maintain control with an 80-minute internal backup battery.
Endure the weather with IP65 dust and water resistance.
What's New in V2.0
Released 4.29.25
Sidus Four is now packed with even more features, like Wi-Fi channel selection, CRMX blocking, and more.
- Added Wi-Fi channel selection in the Wi-Fi settings
- Added 2.4 GHz blocking to restrict CRMX from using specific channels
- Added enable/disable toggles for wired ports
- Added CRMX output power settings in the wireless universe settings menu
- Added Default Linking Keys
- Added CRMX Output Power to wireless port menu
Updates with Sidus Link Pro V2.0
- Real-time Port Feedback in Sidus Link Pro V2.0 – Displays port connection status similar to Sidus Four's screen.
- Sidus Link Pro can now manage Sidus Four over Ethernet as well as Wi-Fi.
- Power Loss Notification – Alerts users when power is lost and device is running on backup.
- Remote Management of Wi-Fi Channel Selection and 2.4 GHz Blocking from Network Connections Menu.
4 Wireless, 4 Wired Universes
With support of up to four CRMX universes and four wired DMX universes, Sidus Four can transmit up to eight DMX universes at the same time.
Sidus Four’s networking protocol options are vast, featuring support for CRMX, DMX, Art-Net and sACN over EtherCon, and Sidus Bluetooth.
Limitless Network Expansion
With the ability to link multiple Sidus Fours together via Ethernet, there’s virtually no cap on the number of universes you can control.
Whether you’re managing a small-scale production or a massive event venue, Sidus Four grows effortlessly with your needs.
Expand from four universes to eight, sixteen, or beyond.
Clear-as-Day Display
Sidus Four features a large, clear, color-coded TFT display that instantly informs user of the entire lighting network’s status, making system setup and troubleshooting quick and intuitive.
With a TFT panel, users will not have to worry about panel burn-in, an issue prevalent in other types of display panels like OLED and LCD.
Any Weather, Anywhere
Sidus Four comes prepared with an IP65 dust and water resistant rating for the ultimate worry-free lighting networking experience.
No matter where you are, Sidus Four is at the ready to serve as your lighting network’s anchor.
This makes Sidus Four the most durable and protected multi-universe CRMX transmitter on the market as other transmitters only have IP20 ratings.
All Day Long Power Options
As redundancies to its AC power input, Sidus Four is equipped with a V-mount battery plate and an 80-minute internal backup battery to ensure your lighting network does not go down due to power loss.
Sidus Four has the longest running backup battery in the market and is one of the only transmitters that has a built-in V-Mount battery plate.
What's in the box?
[1] Sidus Four
[5] TNC Male Dual Band Antennas
[1] 3/8” to Baby Pin Receiver Adapter
[1] Sidus Four 18W (9V) Power Adapter
[1] US Plug
[1] CN Plug
[1] AU Plug
[1] EU Plug
[1] UK Plug
[4] 5-Pin XLR Male to 5-Pin XLR Male Adapters
[1] Sidus Four Hard Case
Specs:
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Connectivity
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CRMX, DMX512, Art-Net & sACN via Ethernet and Wi-Fi |
| Universe Support |
4 wireless universes + 4 wired universes |
| Ethernet |
2 × RJ45 (100 Mbps each) |
| Antenna Fitting (Body) |
TNC – Female |
| Antenna Fitting (Antennae) |
TNC – Male |
| DMX Ports |
4 × 5-pin XLR (bidirectional, female) |
| Wi-Fi Frequency |
5 GHz @ 150 Mbps |
| CRMX / Sidus BT Frequency |
2.4 GHz |
| Bluetooth Range |
≤ 300 m / ≤ 984 ft |
| Wi-Fi Range |
≤ 800 m / ≤ 2,625 ft |
| CRMX Range |
≤ 800 m / ≤ 2,625 ft |
| Wi-Fi Modes |
AP mode / STA mode |
| CRMX Mode |
TX mode |
| AC Adapter |
AC in: 100–240 V · DC out: 9 V / 18 W |
| DC Jack |
5.5 / 2.5 mm barrel (9–24 V) · 3 m |
| V-Mount |
Battery plate |
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Final note
Thanks a lot for visiting our webshop – it really means something to us. Just a quick reminder: we’re not just an online store. We host workshops, training sessions, product events and stay in close contact with our users.
If you can’t visit our physical showroom, the next best thing is to create a free customer profile – that way, you’ll still benefit from the same insider advantages and support. 🔗 Create your free profile here
And if you're looking for an easy overview of the full Aputure line-up: You can view right here ↓

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