Connections
Total Video Inputs 80
Total Video Outputs 52
Total Aux Outputs 48
SDI Rates
1.5G, 3G, 6G, 12G.
Total Audio Inputs
2 x balanced 1/4 inch jack,
2 x 64 channel BNC MADI in,
1 x 5-pin XLR Talkback.
Total Audio Outputs
2 x balanced 1/4 inch jack,
4 x 64 channel BNC MADI out,
1 x 5-pin XLR Talkback.
Timecode Connections
1 x 3-pin XLR Timecode In,
1 x 3-pin XLR Timecode Out.
Reference Input
Tri-Sync or Black Burst.
Video Input Re-Sync
On all 80 inputs.
Frame Rate and Format Converters
On all 80 inputs.
SDI Video Inputs
80 x 10-bit 720p, 1080i, 1080p, 2160p.
SDI Audio Inputs
8 Ch embedded audio on all SDI inputs.
Extra Audio Inputs
1 x 5 pin XLR Talkback.
SDI Video Outputs
52 x 10-bit 720p, 1080i, 1080p, 2160p.
SDI Audio Outputs
16 Ch embedded into SDI output on all outputs.
Extra Audio Outputs
1 x 5 pin XLR Talkback.
SDI Program Outputs
Any of the 48 SDI outputs.
Down Converted SDI Program Outputs 8
SDI Preview Outputs
Any of the 48 SDI outputs
SDI Multi View Outputs
4 x dedicated outputs,
Up to an extra 48 routable outputs.
HDMI Multi View Outputs
None
Webcam Output
1 x USB-C supporting 720p or 1080p at program frame rate.
Remote
RJ12 supports RS-422.
Control Panel Connection
Ethernet supports 10/100/1000 BaseT. Allows 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).
On any of the 48 SDI Outputs.
Computer Interface
1 x USB-C port.
ATEM 4 M/E Constellation 4K Plus
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.
Ultra HD Video Standards
2160p23.98, 2160p24, 2160p25, 2160p29.97, 2160p30, 2160p50, 2160p59.94, 2160p60.
SDI Compliance
SMPTE 292M, SMPTE 296M, SMPTE 424M, SMPTE 425M level A and B, SMPTE 2081‑1, SMPTE 2081‑10, SMPTE 2082‑1 and SMPTE 2082‑10, SMPTE 2082‑12.
Video Sampling
4:2:2
Color Precision
10-bit.
Color Space
REC 709, REC 2020.
SDI Auto Switching
Automatically detects between 1.5G-SDI, level A and level B 3G‑SDI, 6G‑SDI and 12G‑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
20
Transition Keyer (Stinger/DVE)
4 Stinger, 4 DVE.
Total Number of Layers 28
Pattern Generators 21
Color Generators 2
DVEs 4
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 16 Multiview pattern options for up to 64 total views.
Multi View Video Standard
Select HD or Ultra HD.
Media Player
Media Players 4
Channels
Fill and key for each media player.
Media Pool Still Image Capacity 64
Media Pool Clip Capacity 4
Media Player Clip Length in 720 HD
3200 frames
Media Player Clip Length in 1080 HD
1600 frames
Media Player Clip Length in Ultra HD
400 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
Interface
Minimum monitor resolution of 1366 x 768.
Front panel
Built in 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
298 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
1 x selectable HD down converted output.
Software
Control Panel Included
ATEM Software Control Panel included free for macOS 14.0 Sonoma, macOS 15.0 Sequoia or later and Windows 10 and 11.
Software Updates
Using USB‑C 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‑C to chassis.
Operating Systems
Mac icon
Mac 14.0 Sonoma,
Mac 15.0 Sequoia or later.
Windows Icon
Windows 10 and 11.
Windows 11 for ARM
Power Requirements
Power Supply
2 x Internal 100 - 240 AC 50/60Hz.
Power Usage
TBA
Physical Specifications
ATEM 4 M/E Constellation 4K Plus
Physical Installation
Physical Installation
4 rack units height.
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