MX123

A/V Processor

  • 10 HDMI ports: HDCP 2.2/2.3, 18Gbps & 4:4:4 Color
  • 4K Ultra HD; Dolby Vision, HDR10 & HLG
  • 13.2 Audio Channels; eARC; Apple AirPlay 2
  • Dolby Atmos, DTS:X, Auro-3D & IMAX Enhanced

















The MX123 A/V Processor marries a long tradition of uncompromising McIntosh sound quality with the latest home theater technologies to bring you an unsurpassed luxury home entertainment experience. It is compatible with all the leading home theater surround sound and object-based 3D audio formats including Dolby® Atmos, DTS:X and Auro-3D®. It’s also fully compatible with modern 4K Ultra HD video sources and can upscale lower resolutions to 4K Ultra HD for the best possible picture quality.

The MX123 features upgraded digital audio processing capabilities that results in 2 more discrete audio channels, bringing the MX123 to 13.2 discrete audio channels compared to 11.2 in the previous model. These 13.2 discrete channels are available via both balanced and unbalanced audio outputs that can be used in a variety of home theater speaker configurations; 2 additional unbalanced outputs offer further connection flexibility. DSD and ALAC playback support have been doubled to DSD128 and ALAC 192kHz for better high resolution audio performance.

For the video needs of your home theater, the MX123 has 7 HDMI inputs and 3 HDMI outputs. All HDMI inputs and outputs are HDCP 2.3, making the MX123 compliant and compatible with digital content protection specifications for well into the future. They all also have 18Gbps of bandwidth to support High Dynamic Range (HDR) formats Dolby Vision, HDR10 and HLG; 4K Ultra HD at 50/60Hz; 4:4:4 color spacing; Rec. 2020; and 3D video pass-through. Enhanced Audio Return Channel (eARC) functionality is included on 1 of the HDMI outputs. eARC offers improved bandwidth so the MX123 can receive higher resolution audio from your TV to produce the best possible sound quality. Additional connections include: 4 digital audio inputs; 1 balanced and 8 unbalanced analog stereo audio inputs (including 1 dedicated as a Moving Magnet phono input to connect a turntable); an unbalanced 7.1 multi-channel audio input; 3 component and 4 composite video inputs; 1 USB Type A input; 2 unbalanced analog stereo outputs; and 2 composite and 1 component video outputs.

McIntosh MX123 A/V Processor

An exciting new feature on the MX123 is IMAX® Enhanced. IMAX Enhanced is a set of stringent performance standards established by IMAX and DTS® to create a consistent and higher bar for image and sound performance on premium devices. It utilizes a sophisticated, advanced algorithm designed to produce the highest-quality, sharpest 4K HDR images. IMAX and DTS will also partner with award-winning Hollywood sound mixers to use a special variant of the DTS:X codec technology included in the MX123 to deliver an IMAX signature sound experience in your home theater.

McIntosh MX123 A/V Processor

Streaming options1 on the MX123 have been upgraded from the previous model. The MX123 now includes Apple® AirPlay 2® along with Bluetooth® and Spotify Connect for easy streaming from your mobile devices. AirPlay 2 is an Apple technology designed to control home audio systems and speakers in any room – with a tap or by just asking Siri – right from an iPhone®, iPad®, HomePod, or Apple TV®. It offers multiroom audio, Siri voice control, and enhanced playback. TuneIn is also included for further music streaming options – including McIntosh Music. To assist with streaming performance and reliability, wireless connectivity has been improved to include 2.4/5GHz dual band support.

McIntosh MX123 A/V Processor

Audyssey MultEQ® XT32 is included and will calibrate the MX123 to your home theater’s unique acoustical properties, letting it deliver the clearest and most balanced earth-shattering sound possible. Each discrete audio channel has its own 32-bit premium Digital-to-Analog Converter (DAC) to produce the best audio quality. Bass and treble tone controls plus a 9-band equalizer offer additional fine-tuning. The MX123 also gives you the flexibility to create 2 additional zones in your house and send select audio and/or video to each zone.

McIntosh MX123 A/V Processor

The MX123 can be paired with a variety of home theater amplifiers such as our MC303, MC255, MC257, MC8207, MI128 or MI254 amplifiers and any of our floor standing, in-wall or in-ceiling speakers to create an enviable and enjoyable cinema experience in the comfort of your home. Front panel buttons or a comprehensive remote control allow for easy system operation. It’s complete with McIntosh design fundamentals of a backlit black glass front panel with an illuminated logo, control knobs, an easy to read display, and aluminum end caps. Contact your local dealer to learn more.

1) All services may not be available in all regions; certain services may not yet be enabled for all apps; subscriptions may be required.

The MX123 is compatible with AirPlay 2. iOS 11.4 or later is required. To wirelessly stream music to the MX123 via Apple AirPlay 2 a wireless router is required. Router not included.
Apple, AirPlay, Apple TV, Apple Watch, iPad, iPad Air, iPad Pro, iPhone, and Lightning are trademarks of Apple Inc., registered in the U.S. and other countries. The trademark “iPhone” is used in Japan with a license from Aiphone K.K.
Non-McIntosh-Provided Services: Embedded and/or non-embedded services, e.g. those listed above, are necessary for full functionality, are provided by companies unrelated to McIntosh, and are beyond McIntosh’s control. McIntosh cannot and does not warrant against interruption, discontinuance, unsatisfactory performance, reduced Product functionality, or damages of any kind attributable to such services or their providers.
Manufactured under license from Dolby Laboratories. Dolby, Dolby Atmos, Dolby Audio, Dolby Surround, Dolby Vision and the double-D symbol are trademarks of Dolby Laboratories.
Manufactured under license from IMAX Corporation. IMAX® is a registered trademark of IMAX Corporation in the United States and/or other countries. All Rights Reserved.
For DTS patents, see http://patents.dts.com. Manufactured under license from DTS Licensing Limited. DTS, the Symbol, & DTS and the Symbol together are registered trademarks, and DTS:X and the DTS:X logo are trademarks of DTS, Inc. © DTS, Inc. All Rights Reserved.
Manufactured under license from Auro Technologies. Auro-3D® and the related symbols are registered trademarks of Auro Technologies. All materials contained in this work are protected by copyright law and may not be reproduced, distributed, transmitted, displayed, published or broadcast without the prior written permission of Auro Technologies NV or in case of third party materials, the owner of that content.
Manufactured under license from Audyssey Laboratories™. U.S. and foreign patents pending. Audyssey MultEQ® XT32, Audyssey Dynamic EQ®, Audyssey Dynamic Volume® and Audyssey LFC are registered trademarks of Audyssey Laboratories.
The Bluetooth® word mark and logos are registered trademarks owned by the Bluetooth SIG, Inc. and any use of such marks by McIntosh Laboratory, Inc. is under license. Other trademarks and trade names are those of their respective owners.
HDMI, the HDMI Logo and High-Definition Multimedia Interface are trademarks or registered trademarks of HDMI Licensing LLC in the United States and other countries.

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