■ 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.
■ Supports 8K/60Hz and 4K/120Hz resolutions and refresh
rates. Can upscale lower resolutions to 8K.
■ Includes 7 HDMI inputs and 3 HDMI outputs. All support
HDCP 2.3; Rec. 2020; 4:4:4 color spacing; Dynamic Lipsync; and 3D Video pass-through.
■ High Dynamic Range (HDR) formats: HDR (static HDR);
Dynamic HDR; HDR10+; HLG; and Dolby Vision.
■ Quick Media Switching (QMS), Auto Low Latency Mode
(ALLM), Quick Frame Transport (QFT), and Variable
Refresh Rate (VRR) on 8K HDMI ports.
■ 13.2 audio channels. Supports Dolby® Atmos, DTS:X®
Pro and Auro-3D® plus popular legacy surround sound
formats.
■ Audyssey MultEQ® XT32; IMAX® Enhanced; Sony 360
Reality Audio; MPEG-H Audio; Connects with Control4
Certification; Works with Crestron Home; eARC/ARC.
■ Includes Apple® AirPlay 2®, Bluetooth® and Spotify®
Connect for easy streaming from your mobile devices.

SPECIFICATIONS

Frequency Response:
±0.5dB from 20Hz-20kHz
Total Harmonic Distortion:
0.005% maximum from 20Hz to 20kHz
Rated Output Voltage:
2.5 Vrms Unbalanced
5.0 Vrms Balanced
Inputs:
9 Stereo (8 unbalanced + 1 balanced)
7 HDMI
4 Composite
3 Component
2 Optical
2 Coax
1 Multi-channel 7.1 (unbalanced)
Outputs:
15 Balanced (configured for 13.2)
17 Unbalanced (configured for 13.2)
3 HDMI (1 is eARC)
2 Composite (1 for zone B)
2 Stereo (unbalanced for zones B & C)
1 Component
Video Processing:
8K/60Hz and 4K/120Hz, Upconverting
to 8K Ultra HD
High Dynamic Range (HDR): HDR
(static HDR); Dynamic HDR; HDR10+;
HLG; Dolby Vision
IMAX Enhanced
Audio Processing:
Dolby: Dolby Atmos, Dolby
Surround Upmixer
DTS: DTS-X, Neural:X Surround
Upmixer, DTS Virtual:X
Auro: 3D, Auro-Matic, 9.1, 10.1
IMAX Enhanced
Control:
Remote control, network, RS232
Overall 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 the front panel, knobs & cables
Weight:
31 lbs (14 kg) net,
55 lbs (25 kg) in shipping carton
Non-McIntosh-Provided Services:
Embedded and/or non-embedded services
(including but not limited to AirPlay 2 and
Spotify), 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.

For the Consumer’s Protection: In order to ensure the highest level of customer satisfaction, new McIntosh products may only
be purchased from an Authorized McIntosh Dealer; and, with certain limited exceptions may only be purchased over-the-counter or
delivered and installed by the Authorized McIntosh Dealer. McIntosh does not warrant, in any way, products that are purchased
from anyone who is not an Authorized McIntosh Dealer, or that have had their serial numbers altered or defaced.