This high performance live production system is engineered to support demanding multi‑camera environments where reliability, scale and precision are essential. Designed with a four bank architecture, it provides the switching depth required for complex broadcasts, multi‑layered show designs and fast paced event control. Its compact rack mounted frame integrates broadcast grade electronics with intuitive front panel controls and a large display that allows operators to monitor program output and adjust system settings directly from the unit. This design ensures dependable operation both in fixed installations and mobile production setups.
At the heart of this switcher are forty standards converted SDI inputs, enabling a wide variety of HD sources to be used simultaneously regardless of frame rate or format. Each input includes dedicated conversion and re‑sync, ensuring uniform signal timing and effortless integration of diverse cameras, graphics engines or playback devices. Twenty four SDI outputs provide extensive routing flexibility, supporting program feeds, auxiliary sends, monitoring points and integration with downstream devices. The system also offers multiple multiview outputs, allowing operators to observe a large number of sources in well organized layouts suited to complex productions.
Powerful internal processing tools expand creative possibilities. Four independent DVEs provide real time picture manipulation, enabling layered compositions or dynamic transitions. Sixteen advanced chroma keyers support virtual sets and high quality keying with precise edge control. Integrated SuperSource processors add further layering capability by combining multiple sources into a single composited scene, ideal for interviews, panel discussions or multi angle layouts. These features give producers a deep toolkit for building visually engaging productions without the need for external processors.
Audio handling is equally advanced through the built in Fairlight mixer, providing dynamics, equalisation and detailed control across all embedded and external audio channels. The system includes support for talkback to coordinate camera operators and technical staff, ensuring smooth communication during live broadcasts. Ethernet connectivity enables integration with software control panels or hardware interfaces, providing scalable operation based on the needs of each production. The quiet thermal design ensures stable performance even in noise sensitive control room environments.
This comprehensive switching platform combines scale, flexibility and precision to support high end broadcast production, professional event delivery or any situation that requires dependable multi camera control in full HD.
Connections
Total Video Inputs
40
Total Video Outputs
24
SDI Rates
1.5G, 3G
Total Audio Inputs
2 x balanced 1/4 inch Jack,
1 x 32 stereo channel BNC MADI in.
1 x 5 pin XLR Talkback.
Total Audio Outputs
2 x balanced 1/4 inch Jack,
2 x 32 stereo channel BNC MADI out.
1 x 5 pin XLR Talkback.
SDI Audio Inputs
8 Ch embedded audio on all SDI inputs.
SDI Audio Outputs
16 Ch embedded audio on all SDI outputs.
Timecode Connections
None
Reference Input
Tri-Sync or Black Burst.
Video Input Re-Sync
On all 40 inputs.
Frame Rate and Format Converters
On all 40 inputs.
SDI Aux Outputs
Any of the 24 SDI outputs.
SDI Preview Outputs
Any of the 24 SDI outputs.
SDI Program Outputs
Any of the 24 SDI outputs.
Down Converted SDI Program Output
None
Webcam Output
1 x USB-C supporting 720p or 1080p at PGM frame rate.
Total Multi Views
4 x 3G-SDI
Remote
RJ12 supports RS-422
Control Panel Connection
Ethernet. Direct connection between panel and chassis, or via network.
Internal Timecode Generator
Yes
Talkback
RJ45 for 3rd party talkback systems.
Tally Output
Added via ethernet connection to Blackmagic Design GPI and Tally Interface product. (Not included).
Ethernet
Supports 10/100/1000 BASE-T.
Computer Interface
1 x USB-C supports USB 2.0
Standards
SD Video Standards
None
HD Video Standards
720p50, 720p59.94, 720p60
1080i50, 1080i59.94, 1080i60
1080p23.98, 1080p24, 1080p25, 1080p29.97, 1080p30, 1080p50, 1080p59.94, 1080p60
SDI Compliance
SMPTE 292M, SMPTE 296M, SMPTE 424M, SMPTE 425M level A and B.
Video Sampling
4:2:2
Color Precision
10-bit.
Color Space
REC 709
SDI Auto Switching
Automatically detects between 1.5G-SDI and level A or level B 3G-SDI.
Product Specifics
Upstream Keyers
16
Downstream Keyers
4
Advanced Chroma Keyers
16
SuperSource
2
Talkback Support
Yes
Mix Minus Support
Yes
Linear/Luma Keyers
21
Transition Keyer (Stinger/DVE)
4 Stinger, 4 DVE.
Total Number of Layers
28
Pattern Generators
21
Color Generators
2
Control Panel
Front fascia emergency switching, software or optional hardware panel.
Routable Windows
64
Tally
Red for program and green for preview indication.
Windows Source Labels
Yes
Multi View Monitoring
Multi View Monitoring
4 x multi views each configurable to 16, 13, 10, 7 or 4 up views. Includes monitoring of Program, Preview, Inputs, Media Players, M/Es, DSKs, SuperSource, Clean Feed with optional labels and audio meters.
Multi View Video Standard
HD
Display Minimum Resolution
1366 x 768
Media Player
Media Players
4
Channels
Fill and key for each media player.
Media Pool Still Image Capacity
60
Media Pool Clip Capacity
4 x up to 1080p60.
Media Player Clip Length in 720 HD
1200 frames.
Media Player Clip Length in 1080 HD
600 frames.
Media Pool Still Image Format
PNG, TGA, BMP, GIF, JPEG and TIFF.
Media Pool Video File Format
TGA Sequence.
Media Pool Audio File Format
WAV, MP3 and AIFF.
Display
Front panel
Built in 5 inch HD LCD monitor for video, 42 LED buttons for setup and emergency switching, 8 source buttons, 4 transition buttons, 6 talkback selection and mix buttons, menu control knob and set button, front panel lock button.
Processing
Processing Delay
< 10 lines.
Audio Mixer
156 Channel mixer
Selectable On/Off/Audio-Follow-Video.
Level and Peak metering.
Master gain control.
6 band parametric EQ, Dynamics including Expander, Gate, Compressor and Limiter.
Down Conversion
None
Software
Control Panel Included
ATEM Software Control Panel included free for Mac 11.11 Big Sur, Mac 12 Monterey or later and Windows 10 or 11.
Software Updates
Using USB or Ethernet connection directly connected to Mac OS or Windows computers. Includes ATEM Setup Utility.
Configuration
Set via ATEM Software Control Panel, excluding ATEM chassis IP address which is set via the ATEM Setup Utility connected via USB to chassis.
Operating Systems
Mac 14.0 Sonoma,
Mac 15.0 Sequoia or later.
Windows 10 and 11.
Power Requirements
Power Supply
2 x Internal 100 - 240 AC.
Power Usage
147W estimated.
Physical Specifications
Physical Installation
Physical Installation
2 Rack Unit Size.
Environmental Specifications
Operating Temperature
0° to 40° C (32° to 104° F)
Storage Temperature
-20° to 60° C (-4° to 140° F)
Relative Humidity
0% to 90% non-condensing
ATEM 4 M/E Constellation HD
Welcome wallet with QR code for software download
