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True 4K 4 x 2 Hdmi Matrix Switch

True 4K 4 x 2 Hdmi Matrix Switch

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The AC-MX42-AUHD is a true 4x2 HDMI matrix switch. Supporting HDMI 2.0 ( a / b ), HDCP 2.2, up to 4K video resolution & up to 18 Gbps bandwidth. This switch allows any source to be shown on any of the connected displays.


The AC-MX42-AUHD is a true 4x2 HDMI matrix switch. Supporting HDMI 2.0 ( a / b ), HDCP 2.2, up to 4K video resolution, and up to 18 Gbps bandwidth. This switch allows any source ( Blu-ray, UHD Blu-ray, satellite receiver, game consoles, PCs, etc... ) to be shown on any of the connected displays. This matrix equalizes and amplifies the output to ensure the HDMI signal can be transmitted through long HDMI cables without loss of quality.

The AC-MX42-AUHD is ideal for bypassing AVR's that do not support full 18Gbps. You can bypass uncompressed HDMI to the display while running down-scaled video into a legacy AVR. Only video is reduced and audio remains untouched,  making it an ideal component for systems where high bit rate audio is critical. 

Conference room all-star. The auto-switching feature makes this unit an ideal, affordable, component for any conference room system.  Ideal for feeding a video signal into a video conferencing codec with very little setup.

This is an ideal solution for digital entertainment centers, HDTV retail, show sites, data centers, schools, conference and training centers and more!

Key Benefits of using the AC-MX42-AUHD

Ideal for overcoming AVR problems - In today's fast moving, high-bandwidth, video market there is often a need to send high bit-rate, bit stream audio into AVR's to take advantage of audio advances like Dolby Atmos or DTS-X.  The problem is the AVR's, while especially well suited for audio, lack the robust ability to manage high-bandwidth HDR video.  This simple little switch will allow you bypass full, un-scaled, uncompressed video on to displays or projectors and simultaneously down-scale one output to lower bandwidth video while maintaining the original untouched audio codecs, making it ideal for sending this second HDMI signal into an AVR. 

Auto-Switching ( Conferencing ) - Ideally suited for conference rooms or environments where you want the matrix to simply switch to the active input, or activate when a device is plugged in.  BYOD applications are growing and this unit is ideally suited to manage this type of environment.

Auto Switching Mode can be Configured:

Both outputs auto switch together

Only one output auto switches.

NOTE - In either mode output 1 can be down-scaled to accommodate a room where one display is 1080P and another is 4K.

4K Up / Down Scaling ~ This technology is managed on output two.  This will allow you to downscale 4K sources to1080p.  This completely eliminates the problem that all other matrices have that forces them to "dumb down" the entire system even if there is only one old 1080P display.

Extreme EDID Management ~ With 29 on board EDID's, including HDR EDID's,  not getting a picture is simply a thing of the past.  You can manage the input side of the switch by selecting a preloaded EDID.  We also have the ability to INSTANTLY read an EDID from any connected display and apply it to the desired input, all with the push of a button.  Goodbye EDID problems...

Dual Audio De-Embedding ~ Our Unique Audio De-Embedding Allows:

The user can extract 2 Channel audio from the L / R Ports.  NOTE:  the Analog Port only supports 2CH PCM  - for down-mixing check out AC-ADM-AUHD or AC-ADM-COTO

It features a digital optical toslink output for support for 7CH LPCM, Dolby Digital, Dolby Digital +, DTS, DTS Master Audio.

Extracted audio routing is bound to the output of your choosing ( extracted audio switches with the video )

Residential Application

Application Example 1 - Bypassing and AVR
Application Example 2 - Standalone Theater

Commercial Application

Application Example 1 - BYOD Conference room
Application Example 2 - Multiple displays and Video Conference Codec


HDMI 2.0 ( a / b )

18Gbps Bandwidth Support

4K60 4:4:4 Support

Full HDR Support ( HDR 10 & 12 Bit )

Dolby Vision, HDR10+ and HLG Support

HDCP 2.2 ( and all earlier versions supported )

4K > 1080p Down Scaler ( Out 1 )

Perfect AVR Bypass deliver 18Gbps to Display and uncompressed audio to AVR

Advanced EDID Management

IR, RS-232 and LAN Control Options

Digital Toslink Out ( 7CH PCM, DD, DD+, DTS, DTS-MA )

Balanced Analog Out ( 2CH PCM )

Down-scaling mode for mixed systems

Driver Support for Crestron, C4, RTI, ELAN and more

Extracted Audio Supports DD+, DTS Master Audio on Toslink

Extracted Audio bound to output 1 or 2

Whats in the Box?

AC-MX42-AUHD ( Matrix Switch )

Operating Instructions

5V / 2A Locking Power Supply

1 x IR Remote Control

1 x 3 Pin Terminal Connector ( For RS232 )

Mounting Ears

Contact us to inquire how you can finance your purchase through our partner, Synchrony.