
Atlona HDMI Multichannel
to 2Channel Converter
AT-HD-M2C
atlona.com
User Manual
Toll free: 1-877-536-3976
Local: 1-408-962-0515

Table of Contents
1. Introduction ........................................................................... 3
2. Package Contents ........................................................................... 3
3. Features ........................................................................... 3
4. Panel Descriptions
a. Front Panel ........................................................................... 4
b. Rear Panel ........................................................................... 4
5. EDID Audio/Video ........................................................................... 5
6. Connection and Installation ........................................................................... 5
7. Specifications ........................................................................... 6
8. Safety Information ........................................................................... 7
9. Warranty ........................................................................... 8-9
10. Atlona Product Registration ........................................................................... 9
11. Trademark Acknowledgement ........................................................................... 9
atlona.com
2
Toll free: 1-877-536-3976
Local: 1-408-962-0515

Introduction
With so many digital audio format options out there, it’s hard to ensure all devices receive a
compatible audio signal. BluRay players, STBs, and game consoles can output multichannel audio,
but often displays cannot support them. The AT-HD-M2C provides the answer to this by converting
multichannel audio to a 2Channel stereo format that is compatible with your TV and legacy devices
(such as audio receivers). The AT-HD-M2C doesn’t stop there, it also has multiple audio output
ports allowing audio to pass to amplifiers and legacy AVRs (that don’t support HDMI) while still
passing video and 2Ch audio to an HDMI display. With the AT-HD-M2C, enjoy the best audio
available without compromising.
Package Contents
• 1 x AT-HD-M2C
• 1 x Locking 5V DC Adapter
• 1 x User Manual
Features
• Converts multichannel audio into 2Channel audio
• Compatible with all digital audio formats including Lossless and Lossy.
• L/R - Connect to 2Ch amplifiers (such as AT-PA100-G2)
• (Digital) Coaxial/Optical - Connect to older AVRs with no HDMI support
• HDMI - Outputs 2Channel audio
• Audio EDID - Replaces the 2Channel audio portion of a display’s EDID with its own that accepts all
5.1 Dolby® and DTS® audio formats (including Dolby® Digital, Dolby® Digital Plus, Dolby® TrueHD,
DTS Digital Surround™ and DTS-HD Master Audio™).
• LED audio status lights for all audio formats to determine incoming audio signals
• Supports pass through of resolutions up to 1080p, 1920x1200 and 3D
• Plug and play
• HDCP Compliant
atlona.com
3
Toll free: 1-877-536-3976
Local: 1-408-962-0515