The McIntosh MX123 A/V Processor is a flagship 13.2‑channel home theater preamplifier engineered for the most immersive and advanced home cinema systems. Designed for cinephiles and high‑end AV installations, this processor brings together McIntosh’s legendary audio quality with the latest cutting‑edge video and audio technologies to create captivating cinematic experiences.
Supporting 8K/60Hz and 4K/120Hz video, advanced high dynamic range formats including Dolby Vision, HDR10+, HLG, and robust HDMI connectivity with HDCP 2.3, the MX123 ensures stunning picture quality and compatibility with next‑generation video sources. The processor delivers 13.2 discrete audio channels with support for object‑based surround formats such as Dolby Atmos, DTS:X Pro, Auro‑3D, and additional immersive formats like Sony 360 Reality Audio and MPEG‑H Audio for deeply enveloping sound.
Audio performance is enhanced with Audyssey MultEQ XT32 room calibration that intelligently tunes your system to your specific room acoustics, while extensive analog and digital connectivity ensures flexible integration with amplifiers, sources, and other AV components. Streaming protocols such as Apple AirPlay 2, Bluetooth, Spotify Connect, and more are built in for everyday music enjoyment, and smart home certifications (Control4, Crestron Home) allow seamless automation.
Built with exquisite industrial design—featuring McIntosh’s signature glass front panel and illuminated logo—this processor is both a technological centerpiece and an aesthetic highlight of any premium home theater.
Features
- 13.2 discrete audio channels for advanced home theater speaker setups
- 8K/60Hz & 4K/120Hz video support, with upscaling capabilities
- Dolby Atmos & DTS:X Pro plus Auro‑3D, IMAX Enhanced, 360 Reality Audio formats
- Audyssey MultEQ XT32 room calibration with dynamic EQ
- 10 HDMI ports (7 inputs, 3 outputs) with HDCP 2.3 and HDR video support
- Supports Dolby Vision, HDR10+, HLG
- Apple AirPlay 2, Bluetooth, Spotify Connect, Qobuz Connect streaming
- Smart home certified with Control4 and Crestron Home
- Multiple analog, digital, and legacy inputs (including phono)
- eARC/ARC for TV connectivity
- Premium McIntosh design with illuminated glass front panel
Specifications
| Specification | Details |
|---|---|
| Brand | McIntosh |
| Model | MX123 A/V Processor |
| Channels | 13.2 discrete channels |
| HDMI Ports | 10 total (7 inputs / 3 outputs) |
| 8K Video Support | Yes (8K/60Hz on 1 input & 2 outputs) |
| HDR Support | Dolby Vision, HDR10+, HLG |
| Audio Formats | Dolby Atmos, DTS:X Pro, Auro‑3D, IMAX Enhanced, 360 Reality Audio, MPEG‑H |
| Room EQ | Audyssey MultEQ XT32 |
| Streaming | AirPlay 2, Bluetooth, Spotify Connect, Qobuz Connect |
| Control | Control4 & Crestron Home certified |
| Analog Inputs | Balanced XLR, Unbalanced RCA, Phono (MM) |
| Digital Inputs | Optical, Coaxial |
| eARC / ARC | Yes |
| Network | Ethernet, Wi‑Fi |
| Weight | Approx. 14 kg |
| Finish | Black with glass front panel |
| Smart Home Integration | Yes (McIntoshLabs) |





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