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A/V Processor

– Dolby Atmos, DTS:X and Auro-3D
– High Dynamic Range: HDR10, Dolby Vision and HLG
– 4K Ultra HD; 11.2 Channels; AirPlay; Bluetooth

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The MX122 A/V Processor can serve as the brain center for an advanced home theater system for years to come. It features many of the latest breakthroughs in surround sound and object-based 3D audio with support for Dolby® Atmos, DTS:X™ and Auro-3D®. Besides 3D audio, existing formats like Dolby TrueHD, DTS-HD Master Audio™ and others still work so you can keep enjoying your existing movie collection. Regardless the format, all audio will be processed to legendary McIntosh sound quality and performance standards. The MX122 is 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 enjoyment the MX122 delivers does not have to be confined to just one room; you can create 2 additional zones in your house and have the MX122 send select audio and/or video to them. A wide assortment of inputs and outputs will let you connect your current and future entertainment sources. Inputs include 7 HDMI, 4 digital audio, 1 balanced and 8 unbalanced analog stereo, an unbalanced 7.1 multi-channel audio, 3 component and 4 composite video along with 1 USB for iPod. Outputs include both balanced and unbalanced connections configured for 11.2 (also referred to as 7.2.4) surround sound, 3 HDMI (1 dedicated for “zone 2”), 2 component and 2 composite video (1 of each for “zone 2”) and 2 unbalanced stereo (1 for “zone 2” and 1 for “zone 3”). All HDMI inputs and outputs are HDCP 2.2 and support High Dynamic Range HDR10 (effective June 7, 2018 Dolby Vision™ and HLG are now supported with a free firmware update), 4K Ultra HD at 50/60Hz, 4:4:4 color, Rec. 2020 and 3D video pass-through.

Besides enjoying your favorite movies and TV shows, the MX122 is also great for listening to analog or digital 2-channel music in either stereo or upconverted to surround sound and is compatible with a variety of high resolution digital music formats up to 24-bit/192kHz. You can connect to your cloud-based or online digital music with either the wired or wireless network connections. DSD64 files can be played from flash drives or over your network. Connectivity for AirPlay®, Bluetooth® and Spotify Connect allows for easy streaming from your mobile devices. Interfaces to popular streaming services1 including Pandora®, SiriusXM® and Spotify® are included while vTuner lets you connect to 1,000s of internet radio stations – including McIntosh Music. Audyssey MultEQ® XT32 will calibrate the MX122 to your home theater’s unique acoustical properties, letting it deliver the clearest and most balanced – yet still earth shattering – sound possible. Each audio channel has its own 32-bit premium DAC for the best audio performance. A 9 band equalizer offers additional fine-tuning.
The MX122 features classic McIntosh design cues and can be paired with a variety of McIntosh amplifiers and speakers to make a complete cinematic surround sound system in the comfort of your home. It has received Simple Device Discovery Protocol (SDDP) Certification from Control4®, a leading global provider of smart home automation solutions, allowing it to effortlessly be integrated into Control4 automation systems to further enhance the user experience. Contact your local dealer to learn more.

1) All services may not be available in all regions; subscriptions may be required.

*AirPlay requires iTunes 10.1 or later and iPhone, iPad or iPod touch with iOS 4.3.3 or later. To wirelessly stream music to the MX122, a wireless router is required. Router not included.

AirPlay, the AirPlay logo, iPad, iPhone, iPod, iPod classic, iPod nano, iPod shuffle, and iPod touch are trademarks of Apple Inc., registered in the U.S. and other countries. iPad is a trademark of Apple Inc. Individual users are permitted to use iPhone, iPod, iPod classic, iPod nano, iPod shuffle, and iPod touch for private copy and playback of non-copyrighted contents and contents whose copy and playback is permitted by law. Copyright infringement is prohibited by law.

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.

Dolby and Dolby Vision are trademarks of Dolby Laboratories.
For DTS patents, see 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.
Auro-3D is a registered trademark of Auro Technologies.
Pandora is a registered trademark of Pandora Media, Inc.
Manufactured under license from Audyssey Laboratories. U.S. and foreign patents pending. MultEQ XT32 and Dynamic Volume 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 Group, Inc. is under license. Other trademarks and trade names are those of their respective owners.


Number of Channels 2
Audio Formats Decoded
MP3, WMA, AAC, LPCM, SACD, Multi-format DTS (including DTS-HD Master Audio), Multi-format Dolby (including Dolby TrueHD)
Output Level 4.0Vrms Balanced | 2.0Vrms Unbalanced
Output Impedance 600 ohms Balanced | 600 ohms Unbalanced
Blu-ray and DVD Frequency Response
4Hz to 22,000Hz (48kHz Sampling, Linear Audio)
4Hz to 44,000Hz (96kHz Sampling, Linear Audio)
4Hz to 88,000Hz (192kHz Sampling, Linear Audio)
SACD Frequency Response 4Hz to 40,000Hz
CD Frequency Response 4Hz to 20,000Hz
Signal To Noise Ratio 115dB
Dynamic Range 110dB
Total Harmonic Distortion 0.002%
Channel Separation Better than 110dB (1,000Hz)


Digital Coaxial Output 0.5V p-p/75 ohms
Digital Optical Output -15dBm to -21dBm
Digital Signal Format Sampling Frequencies 44.1kHz, 48.0kHz, 96.0kHz and 192.0kHz


Signal System NTSC/PAL
Region Code A, 1
Component Video Output Level N/A
Composite Video Output Level N/A
Supports 3D Playback Yes


Stereo Outputs Unbalanced 1
Stereo Outputs Balanced 1
Multi-Channel Outputs Unbalanced 0
HDMI Output 1
Digital Coaxial Output 1
Digital Optical Output 1
Component Output 0
Composite Output 0
Ethernet 1
USB 3 (1 front panel, 2 rear panel)
Diagnostic Output 1


Rear Panel IR Sensor Input Yes
Rear Panel Data Input Yes
Power Control Input Yes
Power Control Output Yes
RS232 Control Input Yes

Additional information

Weight 42.15 kg
Dimensions 71.12 × 63.5 × 46.67 cm



Total Harmonic Distortion (DSP Bypass) 0.005%
Dolby Processing Atmos/True HD/Digital Plus&EX/Pro Logic IIz, IIx
DTS Processing DTS:X/HD Master & High Res. Audio/ES/96/24, Discrete & Matrix6.1/Neo:6/Express/Neural-X
Auro Processing Auro 3D, Auro-Matic, Auro 9.1, 10.1
Pure Stereo DSP Bypass Mode Yes
Video Scaling 4K Upconversion


Third Party Control RS232, Web IP, IR Input
Tone Controls 9 Band Equalizer, Bass and Treble
OSD Overlay on HDMI Output Yes
Input-Output Format Indicators 9 in and 9 out
Control of McIntosh Sources Yes, by handheld MX122 remote, 1 Data Out, 2 Power Control Trigger jacks


Channel Formats 11.2 (7.2.4), 7.1, 5.1, Stereo
DSP Room Correction Audyssey MultEQ XT32, Dynamic EQ / Dynamic Volume, DSX
Microphone and stand included Yes
Network Features Wi-Fi, Bluetooth, AirPlay, Pandora, SiriusXM, Spotify, vTuner
Unique Crossover Frequency, Each Speaker Yes
Special Features Rear Panel USB-Apple Dock, HDMI in standby, Apple AirPlay, Bluetooth, Spotify Connect


Dimensions (W x H x D) 17-1/2″ (44.45cm) x 7-5/8″ (19.37cm) (including feet) x 19-1/2″ (49.53cm) (including front panel, knobs, rear panel connections and USB drive)
31 lbs (14 kg)
Shipping Weight
55 lbs (25 kg)


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