EMX-AMP

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

  • 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 inputs (e.g. wireless microphones)
  • Control via, front panel, RS-232, digital pot (rotary encoder)
  • HDMI Ducking (when Line input is detected, HDMI sound volume in the mix is automatically lowered)
  • Primary RS-232 port for device control
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Description

The EMX-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. Volume can be controlled using front panel buttons, RS-232 commands, or via an external rotary digital encoder.

EMX-AMP
Audio Functional Block Diagram

The EMX-AMP provides an independent RS-232 output port that can be used to control other devices. Typically it is used to control the power on/off state of the TV or video projector connected to its output.

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.

The EMX-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. An IP enabled version is available (EMX-I-AMP) adds a Telnet and 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.

Features

  • 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 inputs (e.g. wireless microphones)
  • Control via, front panel, RS-232, digital pot (rotary encoder)
  • 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

Block Diagram

Specifications

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-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-AMP
ON (Video Only no audio output): 500 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
Weight Amplifier 10 oz (0.63 lb or 284 g)
Kit (shipping) 37 oz (2.3 lb or 1050 g) includes: EMX-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

Downloads

Manuals Versions Last Updated
EMX-AMP Manual
JUNE 24, 2020
Software Versions Last Updated
EMX-AMP Software GUI
JUNE 24, 2020
Additional Downloads Versions Last Updated
EMX-AMP Software Guide
JUNE 24, 2020

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