4K HDMI Audio Extractor with Audio Amplifier, RS-232 and IP Control

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EMX-I-AMP

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  • 4K HDMI audio extractor with EDID management
  • Built-in 50 watt audio amp for direct connection to 8 Ohm speakers (25 watts/channel)
  • Audio input for connecting line-level audio inputs (e.g. wireless microphones).
  • Control via, front panel, RS-232, digital pot (rotary encoder), Webpage or Telnet
  • HDMI Ducking (when Line input is detected, HDMI sound volume in the mix is automatically lowered)
  • Primary RS-232 port for device control

The EMX-I-AMP is a 4K HDMI Audio Extractor with built-in 50 watt audio amplifier for direct connection of 8 ohm speakers. It provides an additional line-level stereo audio input that can be mixed with the HDMI audio. The built in WebGUI can control the basic functions of this model via LAN. Volume can also be controlled using front panel buttons, RS-232 commands, or via an external rotary digital encoder. An independent RS-232 output port can be used to control other devices.

IP control adds Telnet and a WebGUI. This gives the user the ability to control the device through a PC or Smartphone. Telnet control uses the same commands as the serial interface.You can power the device on and off, select the Audio Mix, control volume up/down/mute functions, and if you have programmed RS-232 ON and OFF commands for your display, you can also control the power of the TV (or set it for Auto where the commands are automatically sent based on video detection).

The webpage has buttons and indicators that show the state of that feature. The indicators are active even if buttons are disabled.

The EMX-I-AMP can pass commands from its RS-232 input to the RS-232 output. It also has the ability to store user defined ON and OFF commands for controlling devices connected to its RS-232 output (e.g. to control power on/off function of display). The stored RS-232 commands can be triggered automatically (based on detecting HDMI input) or manually by user command (RS-232), or contact closure.


Full EDID management is provided with the ability to learn, download, upload, emulate or pass-thru the EDID from the connected display. A USB port is featured on the front panel that can be used to configure the device operation via a free Windows™ GUI available from the Downloads tab.

  • 4K HDMI audio extractor with EDID management
  • Built-in 50 watt audio amp for direct connection to 8 Ohm speakers (25 watts/channel)
  • Audio input for connecting line-level audio inputs (e.g. wireless microphones).
  • Control via, front panel, RS-232, digital pot (rotary encoder), Webpage or Telnet
  • HDMI Ducking (when Line input is detected, HDMI sound volume in the mix is automatically lowered)
  • Primary RS-232 port for device control
  • Secondary RS-232 port for auxiliary device control
  • Store separate ON/OFF RS-232 commands for the auxiliary devices
  • Supports HDMI, DVI, HDCP, 3D and Deep color
  • Stereo or Mono output
  • Priority Paging Sensor input (for automatically muting of the audio output)
  • Compact, Rugged, Reliable, and Economical
  • Made in the USA
  • Video Standards:
    DVI (single link)
    HDMI 1.4 video specifications including 12 bit color depth, 3D video, and 4K@30
    HDCP 1.1
  • Video Signal Type:
    TMDS
  • Video Connectors:
    (2) Locking HDMI
  • Video Resolutions:
    DVI signal VGA (640x480) thru WUXGA (1920x1200)
    HDTV signal 480i through 4K@30 Hz
  • Audio Formats:
    HDMI Embedded Audio including: LPCM (32-192kHz sample rate)
  • DDC:
    DDC from HDMI receiver in the EMX-I-AMP to the source and from HDMI sink to the HDMI transmitter in the AMP. DDC supports EDID management and HDCP handshake
  • CEC:
    Pass-Thru
  • RS-232:
    Qty (2) RS-232 Ports (3 position screw terminal for each)
    RS-232 IN Baud Rate: 9600, N, 8, 1
    RS-232 OUT Baud Rate: Configurable at 1200, 2400, 4800, 9600, 19200, 38400, 57600, or 115200
    Output factory default is 9600, N, 8, 1
  • USB:
    (1) Mini-B
  • Encoder:
    3 Terminal, 24 Detent, 15 Position Grey Code (Rotary Encoder is optional)
  • Power Supply:
    100 VAC to 240 VAC, 47-63 Hz, External; 18 VDC,5A (Model: 511-PSD1850APL06)
  • Temp / Humidity:
    Storage: -40 to +158 °F (-40 to +70 °C) / 10% to 90%, non-condensing
    Operating: +32 to +122 °F (0 to +50 °C) / 10% to 90%, non-condensing
  • Typical Consumption:
    EMX-I-AMP
    ON (Video Only no audio output): 600 mADC
    ON (100% Audio volume): 3.25 ADC
    OFF: 100 mADC
  • Cooling:
    Convection
  • Enclosure Type:
    Metal (Steel)
  • Dimensions:
    1.25" H x 7" W x 4.3" D
    (32mm H x 179mm W x 109mm D)
    Depth excludes connectors
  • Product weight:
    Amplifier 10 oz (0.63 lb or 284 g)
    Kit (shipping) 37 oz (2.3 lb or 1050 g) includes: EMX-I-AMP, power supply, power cord, manual, and packaging
  • Vibration:
    ISTA 1A in carton (International Safe Transit Association)
  • Safety:
    CE
  • EMI/EMC:
    CE, FCC Class A
  • MTBF:
    90,000 hours (Calculated Estimate)
  • Warranty:
    3 years parts and labor