Powerful, portable, and simple to operate, the SR-20HD Direct Streaming AV Mixer makes it easy to manage the modern livestreaming requirements of your business or organization. No computer is required, and everything needed to switch and stream is integrated into a single unit that anyone can use with minimal training. When consistency, dependability, and network security are top priorities, the SR-20HD delivers professional results every time.

Product Features

• All-in-one enterprise solution for direct livestreaming without a computer
• Built-in encoders for transmitting two simultaneous livestreams up to 1080p/60 FPS
• Adaptive Bitrate function reduces freezing and dropouts due to bandwidth issues
• Safety Delay function to keep accidental moments from being broadcast
• Scene function for executing multiple tasks with a single touch
• Record streams directly to an SDXC card for archiving, editing, and distribution
• Ease your workflow with Video Auto-Switching and Auto Mixing functions
• Play sound effects, still images, and video sources from an SDXC card to enhance your livestreams
• LCD monitor for checking video I/O and delivery status in real-time
• Three video inputs: two HDMI and one USB video class
• Two HDMI outputs: Main and Preview
• High-quality audio mixer with eight input channels for mics and line-level devices
• Version 2.0 Now Supports SRT Input and Output

Product Specifications

Video

• Video Processing: 4:2:2 (Y/Pb/Pr), 8-bit
• Input Formats
  • 720/59.94p, 720/50p, 1080/59.94i, 1080/50i, 1080/59.94p, 1080/50p
  • SVGA (800 x 600/60Hz), XGA (1024 x 768/60Hz),
  • WXGA (1280 x 800/60Hz), FWXGA (1366 x 768/60Hz),
  • SXGA (1280 x 1024/60Hz), SXGA+ (1400 x 1050/60Hz),
  • UXGA (1600 x 1200/60Hz), Full HD (1920 x 1080/60Hz),
  • WUXGA (1920 x 1200/60Hz)
  • * The refresh rate is the maximum value of each resolution.
  • * Conforms to CEA-861-E, VESA DMT Version 1.0 Revision 11.
  • * 1920 x 1200/60 Hz: Reduced blanking
• Output Formats
  • HDMI OUT MAIN, PVW connectors:
  • 1080/59.94p, 1080/50p
  • * The video signal frame rate can be selected at the SYSTEM menu (59.94 Hz or 50 Hz).
• Stream and Video Recorder Formats
  • File Format: MP4
  • Codec: H.264, target bitrate up to 20 Mbps
  • AAC LC 48kHz 16bit Stereo, target bitrate up to 384k bps
• Video Player: File Format: MP4 (H.264, AAC)
• Still Image
  • PNG File (.png), Maximum 1920 x 1080 pixels, 24-bit color
  • JPEG File (.jpg .jpeg), Maximum 1920 x 1080 pixels, 24-bit color
• Video Effects
  • Scene: Picture in Picture, Split, Picture by Picture
  • Transition: Black fade, Mix fade
  • Key Composition: Luminance key, Chroma key
  • Other: Output fade, Test pattern output, Stream Delay

Audio

• Audio Processing: 24 bits/48 kHz
• Audio Formats: HDMI IN/OUT connectors: Linear PCM, 24 bit/48 kHz, stereo
• Audio Effects: Delay, High Pass Filter, Gate, Compressor, Equalizer, Limiter, Test tone output
• Audio Player: File format: WAV (Linear PCM, 16 bits, 48 kHz/44.1 kHz, stereo)

Common Section

• Recording Media: SDHC/SDXC card (sold separately)
• Other Functions
  • Panel lock function
  • EDID emulator

Connectors

• Input Connectors
  • HDMI IN 1--2 connectors: HDMI type A (Multi-format supported)
  • AUDIO IN 1--4 jacks: Combo type
  • XLR type: balanced, phantom power (DC 48 V, 10 mA), (1 GND, 2 HOT, 3 COLD)
  • 1/4-inch TRS phone: balanced
• Output Connectors
  • HDMI OUT MAIN, PVW connectors: HDMI type A
  • LINE OUT jack: RCA phono type
  • PHONES jack: Stereo miniature phone type
• Input/Output Connector: HEADSET jack: Stereo miniature phone type (3.5 mm, 1/8-inch, TRRS 4-pole, CTIA)
• Other Connectors
  • USB VIDEO IN port: USB A (USB 3.0)
  • USB CONTOL port: USB A (USB 2.0)
  • LAN (DIRECT STREAM) port: RJ-45, 1000BASE-T
  • DC IN jack

Audio Input/Output Charactaristics

• Nominal Input Level
  • AUDIO IN 1--4 jacks: -52 to +4 dBu (Maximum Input level: +24 dBu)
  • LINE IN jack: -10 dBu (Maximum Input level: +10 dBu)
• Input Impedance
  • AUDIO IN 1--4 jacks (XLR type, with phantom power): 5 k ohms
  • AUDIO IN 1--4 jacks (XLR type, without phantom power): 7 k ohms
  • AUDIO IN 1--4 jacks (TRS 1/4-inch phono type): 7 k ohms
  • LINE IN jack: 18 k ohms
• Nominal Output Level
  • AUDIO OUT jack: -10 dBu (Maximum Output level: +10 dBu)
  • PHONES jack: 72 mW + 72 mW (32 ohms)
• Output Impedance: AUDIO OUT jack: 1 k ohm

Other

• Display: 4.3 inches TFT colour LCD: 480 x 272 dots
• Power Supply: AC adaptor
• Current Draw: 3.5 A
• Power Consumption: 42 W
• Operation Temperature
  • +0 to +40 degrees Celsius
  • +32 to +104 degrees Fahrenheit
• Dimensions: 300 (W) x 215 (D) x 86 (H) mm
• Weight (excluding AC adaptor): 2.4 kg
• Accessories
  • Startup Guide
  • Leaflet "USING THE UNIT SAFELY"
  • AC adaptor
  • Power cord