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HDMI MULTI-CHANNEL TO TWO-CHANNEL BALANCED AUDIO CONVERTER
The Atlona AT-UHD-M2C-BAL is an audio converter used to extract and downmix multi-channel LPCM, Dolby®, and DTS® surround sound signals from HDMI sources to balanced analog signals for professional audio systems. The converter provides controls for one- or two-channel mode, volume, mute, bass, and treble via RS-232, TCP/IP, and a web-based GUI. A balanced analog audio output is provided on a 5-pin captive screw connector. The video pass-through design of the AT-UHD-M2C-BAL allows it to be placed anywhere in the signal path where a convenient audio feed to the sound system is required.
FEATURES
Universal de-embedder for Dolby and DTS signals
- Supports PCM, Dolby® Digital, Dolby Digital Plus™, Dolby TrueHD, Dolby Atmos®, DTS Digital Surround™, DTS-HD Master Audio™, and DTS:X™
- HDMI audio de-embedding with or without a video display or other sink connection
- Allows any multi-channel audio stream to be used within a professional audio system
Downmixes multi-channel audio to 1 or 2-channel audio
- Extracts, decodes, downmixes and converts digital multi-channel streams to analog two channel or summed mono signals
- Provides easy integration of HDMI audio sources into professional audio systems
Balanced audio output
- Professional, +4dBu audio is provided on a 5-pin captive screw connector
- Allows for fast integration with professional sound systems
Volume and EQ adjustment
- On-board adjustment of output volume, bass and treble settings via RS-232 and web-based GUI
- Audio adjustment without external DSP
4K/UHD support
- Supports all HDMI resolutions up to 4K@30 Hz
- Ensures all high resolution signals are passed to video system
HDMI Receiver
- Functions as an HDMI sink so no additional devices are required for operation
- Eliminates the cost of HDMI sink such as a display or UHD-SYNC
EDID management
- Manages EDID communications between source and switcher; allows integrators to force sources to preferred resolution
- Ensures desired audio formats and video resolutions are provided to the AV system; eliminates the need for EDID management device
HDCP Management
- HDCP compliance can be switched on/off from control systems for use with non-compliant displays, streaming devices and codecs
- Allows non-protected material from PCs to pass to non-compliant displays and teleconference systems while protected content is not transmitted
Control capabilities
- RS-232, TCP/IP and web-based GUI provide external control of volume, mute, bass, and treble
- Easy interfacing with control systems for simplified audio system adjustments
Default switch
- Allows volume, mute, EQ, and 2- /1-ch. settings to be externally controlled (Adjust) or reset to factory settings (Default)
- Provides quick troubleshooting adjustment when control systems are not available
Included accessories
- User guide, desktop power supply, detachable power cable
Award-winning 10 year limited product warranty
- Ensures long-term product reliability and performance in residential and commercial systems
- Specify, purchase, and install with confidence
Universal Audio De-embedder for 4K/UHD Signals
This product is the commercial version of the AT-HD-M2C. In commercial applications where audio is provided by an HDMI source, integrators need an easy solution to extract balanced, +4 dBu, two-channel or monaural audio for professional sound reinforcement systems while maintaining full 4K/UHD video signal integrity for video switching and distribution systems. Integrated control reduces total cost in simple systems potentially eliminating a DSP or other volume control device.
The AT-UHD-M2C-BAL is ideal for use in training or meeting spaces that require audio from PCs or Blu-ray players to be routed to a distributed speaker system. The converter is placed in line between the source and the HDBaseT transmitter or switcher in order to provide a feed to both the sound and video systems.

SPECIFICATIONS
Resolution | |
Video | 4096×2160@24/25/30Hz, 3840×2160@24/25/30Hz, 2048x1080p, 1080p@23.98/24/25/29.97/30Hz, 1080i@50/59.94/60Hz, 720p@50/59.94/60Hz, 576p, 576i, 480p, 480i |
VESA | 2560×2048, 2560×1600, 2048×1536, 1920×1200, 1680×1050, 1600×1200, 1440×900, 1400×1050, 1366×768, 1360×768, 1280×1024, 1280×800, 800×600, 640×480 |
Colorspace | YUV, RGB |
Chroma Subsampling | 4:4:4, 4:2:2, 4:2:0 |
Color Depth | 8-bit, 10-bit, 12-bit |
Audio | |
Analog Output | PCM 2Ch (de-embedded) |
HDMI IN/OUT | PCM 2Ch, LPCM 5.1, LPCM 7.1, Dolby Digital, DTS 5.1, Dolby Digital Plus, Dolby TrueHD, DTS-HD Master Audio, Dolby Atmos, DTS:X |
Captive Screw Analog | Balanced +4dBu, 2Ch |
Sample Rate | 32kHz, 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz |
Total Harmonic Distortion | 0.0008% (dB, sample frequency: 48kHz) |
Signal/Noise Ratio | 142dB |
Frequency Range | 20Hz to 20kHz +/- .1dB |
Crosstalk | -103dB |
Bass | 15dB to -15dB @ 500Hz |
Treble | 15dB to -15dB @ 2kHz |
Distance | |
HDMI IN/OUT @ 4K | up to 5 meters / up to 15 feet |
HDMI IN/OUT @ 1080p | up to 10 meters / up to 30 feet |
Signal | |
Bandwidth | 10.2 Gbps |
CEC | Pass through |
HDCP | Switchable – Compliant/Non compliant |
Connector | |
Firmware | Mini-B USB |
RS-232 | 3.5mm mini jack – Tip: Pin 2 (TX), Ring: Pin 3 (RX), Sleeve: Pin 5 (Ground) |
LAN | RJ45, TCP/IP |
HDMI | Type A |
Analog | Balanced, 5-pin captive screw |
Power | DC 5V locking connector |
Temperature | |
Operating | 0°C to 50°C/td - 32°F to 122°F |
Storage | -20°C to 60°C / -4°F to 140°F |
Humidity | 20 to 90% non-condensing |
Power | |
Consumption | 7W |
Supply | Input: AC100~240V 50/60Hz Output: DC 5V/2.6A |
Dimension | |
H x W x D | 30 x 125 x 110 (mm) / 1.18 x 4.92 x 4.33 (inch) |
Weight | |
Unit | 0.28kg / 0.61lbs |
Certification | |
Power Supply | CE, FCC, cULus, RCM |
Unit | CE, FCC |