• Livestream Studio HD51 4K Video Switcher-Main
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Livestream Studio HD51 4K Video Switcher

  SKU# LS-HD514K
  MFR# HD51-4K

Availability: In Stock

Order Now to Ship by: Wednesday February 27

Free Expedited Shipping

Product Highlights

  • Supported format: Up to 4K
  • Inputs: 5 HD-SDI, 5 HDMI, 1 Analog Audio (1/8”) Input
  • Output: 1 HDMI Outputs, 1 SDI Output, 1 Analog Audio (1/8”)
  • Recording Capacity: ~40 hours at 1080i
  • Record Media Formats: AVI MJPEG with uncompressed audio
  • Graphics Card: NVIDIA GeForce GT 730
  • Live streaming: YouTube Live, Akamai, Wowza Media Server, Twitch.


The Livestream HD51 4K from Livestream is an all-in-one live production video switcher that built with the rack-mounted style; it offers a reliable solution of 4K video switcher, mixer, and streaming solution. To provide sufficient inputs for the Video connectivity, this product has 5 HD-SDI Inputs, 5 HDMI Inputs and the Video Outputs: 1 HDMI Outputs, as well as 1 Standard/High Definition SDI Output. On the Audio I/O, there are 1 Analog Audio (1/8”) Input and 1 Analog Audio (1/8”) Output.

Given the fact that this Livestream HD51 4K is a rack-mounted device, as such this product suitable for studios, live venues, production facilities as well as production trucks that have a rack set up. This product can process the recording, up to 4 concurrent recordings and it is also compatible with other software: Adobe Premiere and Blackmagic Design Media Express. The recording capacity can operate up to 40 hours at the 1080i quality. Therefore, with the 2TB for the Hard Drive, this product can record at 100 Mbps MJPEG AVI. As for the CPU, this device uses the Intel Core i7 6900K Broadwell-processor and NVIDIA GeForce GT 730 for the Graphics Card.

Besides those technical details, this Livestream HD51 4K comes also with cool Graphic Downstream Key which consists of 3 x Graphics DSK (downstream key) channels. In addition, the Graphic and Titling offers users to load JPG or PNG files and also adds some text to any loaded image to all the 3 Graphics. Moreover, the Video Clip Playback provides 2 Media Players with plenty convenient control. The greatness of this product is not just for the Video features but also audio whereas the Audio Mixing features have the integration of multi-channel audio mixer for internal and external audio sources, outputs, stream, and headphones. Not to be left out, the Live Streaming functionality is another superiority that this product has. In this regards, users can produce video in HD live streaming quality over the built-in Gigabit/100/10 Ethernet. Then, users can publish their content via reliable platforms: Ustream, YouTube Live, Akamai, Wowza Media Server, Twitch.








5 HD-SDI Inputs

5 HDMI Inputs

1 Analog Audio (1/8”) Input


Embedded Audio Input

5 Stereo or 40

Mono Inputs

1 Audio Monitoring (1/8”)



1 HDMI Outputs

1 Standard/High Definition SDI Output

1 Analog Audio (1/8”) Output


Media Sources

7 integrated digital media sources for video & graphics playback.

2 DDRs (video clip playback with built-in transcoder), 3 GFX (graphics), 2 Color Bars / Background Color


Remote Camera

10 x Remote camera module for ingesting video/audio over local WiFi or Ethernet network,

downlinking streams, and Interviews via WebRTC.


Format Converter

Built-in broadcast quality format converter for every input with automatic format detection.

Allows use of any camera and video source without matching video formats.


Built-In Multiview

On-screen full field rate multiview of all live inputs, Preview, Program Out, GFX and DDR, Audio PPM overlay with peak hold feature on all inputs and outputs.

Resizable layout allowing hiding of all controls to maximize multiview screens.


External Multiscreen

1x Extended Screen output using HDMI


Video Switcher/Mixer

Mixer & Effects Bank (M/E) with no upstream keyer. transitions : SMPTE Wipe,

Cut & Fade (Auto transition with adjustable duration in frames, manual via on-screen T-BAR or keyboard shortcuts)


Graphics Downstream Key

3 x Graphics DSK (downstream key) channels. One channel for GFX1, one channel for GFX2 and one channel for GFX 3.

Independent or locked transition controls (fade/cut/wipe). Preview on multiview.


Graphics & Titling

Load JPG or PNG files (full transparency support with PNG files).

Add text (set position/font/size/color) over any loaded image file within the GFX1, GFX2 or GFX3


Video Clip Playback

2 Media Players - Eject/Load clip. Play Pause/stop. Audio/Video Scrubber. Timecode indicator. Seek to timecode.

Mark In/Mark Out. Loop. Auto-play on transition.



Up to 4 simultaneous isolated source recordings. MJPEG with uncompressed audio. Interlacing and timecode support.

Full compatibility with Blackmagic Design Media Express and Adobe Premiere.


Recording Capacity

~40 hours at 1080i

(Using 2 TB built in Hard Drive with recorder set to record at 100Mbps MJPEG AVI)


Live Streaming

HD live streaming via Gigabit/100/10 built-in Ethernet. Presets in up to HD 720p. Multiple simultaneous bit-rates, including mobile quality for playback over 3G on mobile devices (iPhone/Android).

Integrated live streaming to Livestream or any other RTMP compatible service including Ustream, YouTube Live, Akamai, Wowza Media Server, Twitch.


Audio Mixing

Integrated multi-channel audio mixer for internal and external audio sources, outputs, stream and headphones.

Incorporated video switcher follow feature with audio crossfade support when fading two video sources.


Supported Formats



720p50, 720p59.94, 720p60, 1080PsF23.98,

1080p23.98, 1080PsF24, 1080p24, 1080PsF25,

1080p25, 1080PsF29.97, 1080p29.97, 1080PsF30,

1080p30, 1080i50, 1080i59.94 and 1080i60.


Playback Media

Formats GFX: JPEG or PNG image files with transparency support.

DDR: AVI MJPEG with uncompressed audio, DV Video, WMV (7/8/9), H.264 (.mov & .avi),

MPEG4 Part 2 (.mov & .avi), MPEG4 V1/V2 (.mov & .avi), AAC, MP3


Record Media Formats

AVI MJPEG with uncompressed audio


Operating System

Windows 7 Professional (64 bit) or better



Intel Core i7 6900K Broadwell-E 8-Core 3.2 GHz 20MB cache

LGA 2011-v4 140W Desktop Processor


Graphics Card

NVIDIA GeForce GT 730



Samsung 850 EVO 2TB SSD



64GB DDR4 2133 MHz RAM



Video: 4:2:2, 10 bit Color (REC 601, REC 709) Audio: 48 kHz, 24-bitrEF IN/Genlock

(Requires genlocking the two Blackmagic Design cards via two separate connectors)


Built-in Video Input/Output Cards

5 Blackmagic Design DeckLink Mini Recorder (PCI),

1 Blackmagic Design DeckLink Mini Monitor (PCI)


Built-in Video Input/Output Cards

5 Blackmagic Design DeckLink Mini Recorder (PCI),

1 Blackmagic Design DeckLink Mini Monitor (PCI)


Included in the Box

Power cable, Livestream Studio™ Keyboard, Mouse,

Livestream Mousepad, Rack Ears Rubber Feet,

Blackmagic Design cards documentation and driver CD, Warranty



~13.8 lbs


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