KD52N 4K All-in-One Live Production Switcher
4K Live Production Switcher

KD52N

All-in-one 4K live switcher with 12 inputs, dual streaming, SD recording, and full keying support — built for broadcast and houses of worship.

$2,000
  • 12 inputs: HDMI · SDI · UVC · NDI · RTSP · MP4
  • Dual RTMP streaming
  • SD card recording
  • Chroma / DSK / Luma key
  • PTZ control (VISCA)
  • Tally (DB15)
  • XLR + 3.5mm audio I/O
  • Bitfocus Companion
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12
Video Inputs
4K
Output
2×
RTMP Streams
3
Key Types
Feature Demo

Chroma Key

Remove green screen backgrounds in real-time for clean, professional compositing.

Without Chroma
With Chroma
Watch on YouTube
Feature Demo

DSK Key

Downstream keying for overlaying graphics, lower thirds, and logo bugs on your live output.

Without DSK
With DSK
Watch on YouTube
Feature Demo

Luma Key

Use brightness values to key out backgrounds — ideal for white or black card overlays.

Without Luma
With Luma
Watch on YouTube
Video Tutorials

Function Demonstration Index

Click any item to jump directly to that feature in the full YouTube walkthrough.

Input Source
1Select SDI or HDMI source for the same input channel 2NDI Stream Adding 3RTSP Stream Adding
Switch & Output
4Signal Switching and T-Bar Transition Demonstration 5Customizable Output Sources for PGM / AUX / SDI 6UVC Output Demonstration
Overlay & Effects
7Logo and Background Image Import & Application 8Chroma Key 9DSK Key 10Luma Key 11PIP Function
Streaming & Control
12RTMP Streaming 13PTZ Camera Control
Full Specifications

KD52N Technical Specs

Complete feature and I/O specification chart

Video Input
HDMI
IN1/2 support 4K60 · IN3/4 support 1080P60
SDI
4× SDI inputs, 1080P60 supported
USB
UVC-compatible camera input, up to 1080P30
NDI / RTSP
Network stream input, 1080P60
File Playback
MP4, MOV, TS, FLV — SD card, USB drive, or internal ROM — up to 1080P60
Video Output
SDI Out
1× 3G-SDI PGM output (1080P60)
HDMI Out
PGM / PVW / Multiview / Clean PGM / Clean PVW selectable
Multiview
Vertical or horizontal layout supported
Streaming
Dual RTMP(S) to YouTube, Facebook, or custom server
USB Out
UVC streaming output, 1080P60
Audio
Input
2× XLR (with phantom power) · 2× 3.5mm stereo
Embedded
Audio via HDMI / SDI / USB supported
Output
1× 3.5mm line out · 1× 3.5mm headphone monitoring
Control
PTZ
VISCA over IP & RS232 serial
Tally
DB15 standard TALLY interface
Serial
Phoenix RS232 port
Web UI
Built-in web interface for control & configuration
Companion
Compatible with Bitfocus Companion via network
Recording & Storage
SD Card
Up to 64 GB · 1080P60 recording/playback
USB Drive
FAT32/exFAT · up to 2 TB · 1080P60 recording/playback
Internal ROM
Preloaded demo clips for playback