SR-20HD Direct Streaming AV Mixer 2x HDMI / 1x USB Inputs

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

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