Anthem MRX 1140-8K 15.2 Pre-Amplifier / 11 Amplifier Channel A/V Receiver with Dolby Atmos, DTS:X and IMAX Enhanced | Best Anthem MRX 1140-8K 15.2 Pre-Amplifier / 11 Amplifier Channel A/V Receiver with Dolby Atmos, DTS:X and IMAX Enhanced | Anthem MRX 1140-8K 15.2 Pre-Amplifier / 11 Amplifier Channel A/V Receiver with Dolby Atmos, DTS:X and IMAX Enhanced Reviews | Audiolab Home Audio
Anthem MRX 1140-8K 15.2 Pre-Amplifier / 11 Amplifier Channel A/V Receiver with Dolby Atmos, DTS:X and IMAX Enhanced | Best Anthem MRX 1140-8K 15.2 Pre-Amplifier / 11 Amplifier Channel A/V Receiver with Dolby Atmos, DTS:X and IMAX Enhanced | Anthem MRX 1140-8K 15.2 Pre-Amplifier / 11 Amplifier Channel A/V Receiver with Dolby Atmos, DTS:X and IMAX Enhanced Reviews | Audiolab Home Audio
Anthem MRX 1140-8K 15.2 Pre-Amplifier / 11 Amplifier Channel A/V Receiver with Dolby Atmos, DTS:X and IMAX Enhanced | Best Anthem MRX 1140-8K 15.2 Pre-Amplifier / 11 Amplifier Channel A/V Receiver with Dolby Atmos, DTS:X and IMAX Enhanced | Anthem MRX 1140-8K 15.2 Pre-Amplifier / 11 Amplifier Channel A/V Receiver with Dolby Atmos, DTS:X and IMAX Enhanced Reviews | Audiolab Home Audio
Anthem MRX 1140-8K 15.2 Pre-Amplifier / 11 Amplifier Channel A/V Receiver with Dolby Atmos, DTS:X and IMAX Enhanced | Best Anthem MRX 1140-8K 15.2 Pre-Amplifier / 11 Amplifier Channel A/V Receiver with Dolby Atmos, DTS:X and IMAX Enhanced | Anthem MRX 1140-8K 15.2 Pre-Amplifier / 11 Amplifier Channel A/V Receiver with Dolby Atmos, DTS:X and IMAX Enhanced Reviews | Audiolab Home Audio

Anthem MRX 1140-4K A/V Receiver (Demo)

$2,499.00
$4,199.00
$2,499.00

Available In-Store during the Tent Sale 6/6/26 & 6/7/26.

1-800-513-8555 for details.

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Anthem MRX 1140-4K A/V Receiver

15.2-Channel Processing • 11 Amplified Channels • 140W Main-Channel Power • Dolby Atmos & DTS:X • ARC Genesis Room Correction • HDMI 2.0b 4K Video • Dual Independent Subwoofer Outputs

Reference-Level 15.2-Channel Processing with 11 Channels of Anthem Amplification

The Anthem MRX 1140-4K A/V Receiver combines high-performance surround processing, eleven channels of onboard amplification and Anthem's advanced ARC Genesis room-correction platform in a powerful centerpiece for immersive home theater. With processing for up to 15.2 channels, the MRX 1140 can support sophisticated Dolby Atmos and DTS:X speaker layouts while providing enough internal amplification for a complete 7.1.4 system without requiring additional power amplifiers.

This original 4K-generation MRX 1140 uses Anthem's HDMI 2.0b video platform for compatible 4K sources and should not be confused with the later MRX 1140 8K model. Beyond surround processing, the receiver provides independent dual-subwoofer control, flexible amplifier-channel assignment, network control, wireless music streaming and extensive preamp connectivity for systems that may later be expanded with external Anthem power amplification.

Highlights & Benefits

  • 15.2-Channel Surround Processing — Provides extensive processing capability for advanced immersive speaker layouts and external amplification.
  • 11 Channels of Built-In Amplification — Powers a complete 7.1.4 Dolby Atmos system directly from the receiver without requiring an external amplifier.
  • 140W Main-Channel Amplification — The primary five amplifier channels deliver up to 140 watts into 8 ohms with two channels driven for strong front-stage performance.
  • ARC Genesis Room Correction — Anthem's advanced calibration system measures the room and optimizes speaker and subwoofer response for more accurate in-room performance.
  • Independent Dual-Subwoofer Control — Two independently managed subwoofer outputs provide greater flexibility for integrating multiple subwoofers into the listening room.

Technology & Design

Anthem Room Correction Genesis — ARC Genesis uses calibrated acoustic measurements and sophisticated filtering to address room-induced frequency-response problems while preserving the natural character of the loudspeakers.

11-Channel Amplifier Architecture — The MRX 1140 combines five higher-powered amplifier channels with six additional channels, giving installers the flexibility needed for sophisticated immersive-audio configurations.

Dolby Atmos & DTS:X Processing — Object-based surround processing creates three-dimensional sound fields with compatible height and overhead speakers for movies, television and immersive music.

Flexible Amp Matrixing — Internal amplifier channels can be assigned according to system requirements, while the extensive preamp outputs make it possible to add external amplification as a system grows.

FAQ — Anthem MRX 1140-4K

Is this the 4K or 8K version of the Anthem MRX 1140?

This listing is for the original MRX 1140 4K model. It uses Anthem's HDMI 2.0b platform and supports 4K video. The later MRX 1140 8K uses an updated HDMI 2.1 video board.

Can the MRX 1140 power a 7.1.4 Dolby Atmos system?

Yes. The MRX 1140 includes eleven onboard amplifier channels and is configured by default to support a 7.1.4 main-zone speaker system.

Does the MRX 1140 include ARC Genesis?

Yes. Anthem Room Correction Genesis is supported and provides calibrated room measurement, speaker correction, bass management and multiple listening profiles.

Can I add an external power amplifier later?

Yes. The MRX 1140 provides extensive multichannel preamp outputs, allowing selected speakers or an entire system to be powered by compatible external amplifiers.

Why Buy From Us

  • Authorized Anthem Dealer
  • 5% Reward Points on Every Purchase
  • Expert Home Theater Design and System-Matching Assistance
  • Professional Installation, Calibration and ARC Genesis Setup Available

Anthem MRX 1140-4K Specifications

Product Type
High-performance multichannel A/V receiver
Preamp Processing Channels
15.2
Built-In Amplifier Channels
11
Default Main-Zone Configuration
Up to 7.1.4 using internal amplification
Channels 1–5 — 8Ω
140W continuous
20Hz–20kHz, 1% THD, 2 channels driven
Channels 1–5 — 6Ω
170W continuous
20Hz–20kHz, 1% THD, 2 channels driven
Remaining Channels — 8Ω
60W continuous
20Hz–20kHz, 1% THD, 2 channels driven
Remaining Channels — 6Ω
75W continuous
20Hz–20kHz, 1% THD, 2 channels driven
Recommended Speaker Impedance
Greater than 4 ohms
Room Correction
Anthem Room Correction ARC Genesis
ARC Profiles
Multiple configurable listening profiles
Dolby Atmos
Yes
DTS:X
Yes
Dolby Surround
Yes
DTS Neural:X
Yes
HDMI Generation
HDMI 2.0b — original 4K platform
Maximum Video Platform
4K video
HDMI eARC
Yes
HDR Support
HDR10+, Dolby Vision and compatible HDR formats
Subwoofer Outputs
2 independent outputs
Multichannel Pre-Out
Up to 15.2 channels
Amp Matrixing
Assignable internal amplifier channels
Zone 2
Supported
Network Connectivity
Ethernet and Wi-Fi
Apple AirPlay
Supported
Google Cast
Supported
Bluetooth
Supported
Spotify Connect
Supported
Web User Interface
Browser-based setup and control
IP Control
Supported
RS-232 Control
Supported
IR Control
IR inputs / remote-control support
12V Triggers
Supported for system integration
Dimensions
17" W × 6" H × 14-1/2" D
Approx. 432 × 152 × 368 mm
Finish
Black
Model Generation
Original MRX 1140 4K / HDMI 2.0b version
Brand
Anthem

What's in the Box

  • 1 × Anthem MRX 1140-4K A/V Receiver
  • 1 × Anthem Remote Control
  • ARC Genesis Calibration Microphone
  • ARC Microphone Stand / Calibration Accessories
  • Wi-Fi / Bluetooth Antennas
  • 1 × AC Power Cord
  • Owner's Manual / Product Documentation

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