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The McIntosh MHT300 Home Theater Receiver is a 7.2-channel audio/video powerhouse that delivers rich, precise sound and sharp 8K/60 Hz + 4K/120 Hz video. It brings consistent power to every speaker—150 W into 4 Ω or 120 W into 8 Ω—while offering top surround formats and tailored room tuning to suit how you watch and listen.

Key Features

  • Full power to all seven channels—no sneakier fine print or two-channel tricks
  • 4 HDMI inputs and 1 output support 8K/60 Hz & 4K/120 Hz, HDR formats, eARC/ARC
  • Dolby Atmos and DTS:X surround sound support for realistic spatial depth
  • Dirac Live room correction adapts to your space for clearer audio 
  • Expandable up to 7.2.4 with external amps via Height pre-outs 
  • Elegant, rack-mountable 3U design ideal for custom or on-display use
  • Dual subwoofer outputs, solid control options, and pro-level build quality

Why Buy

This receiver blends power, clarity, and flexibility in one refined unit. It delivers even volume across all speakers, adapts to your room, and grows with your system—all without clutter.

  • Every speaker gets full amplifier power—no corner-cutting.
  • Smart room tuning means better sound without guesswork.
  • Modular design lets you add height channels or subs when ready.

Product Specifications

McIntosh MHT300 Home Theater Receiver Specifications
Product Overview
Receiver Type 7.2-channel Home Theater Receiver (expandable to 7.2.4)
Power Output (RMS) 150 W per channel (4 Ω), 120 W per channel (8 Ω), with all seven channels driven
Channels 7.2 (expandable to 7.2.4)
Impedance 4 to 8 ohms
Frequency Response +0, –0.5 dB from 20 Hz to 20 kHz
Audio Specifications
Audio Formats Supported Dolby Atmos, DTS:X, Dolby Digital, Dolby TrueHD, DTS HD-Master Audio, Dolby Surround Upmixer, DTS Neural:X Surround Upmixer
THD (Total Harmonic Distortion) 0.05 % (DSP Bypass) 
S/N Ratio 85 dB (95 dB below rated output)
Audio Inputs 4 × HDMI, 2 × Optical, 2 × Coaxial, Rear-panel USB-A (firmware updates), FM tuner
Connectivity
Ethernet Yes (for setup, control, firmware updates via Web IP)
USB Ports 1 × USB-A (rear, firmware updates)
Audio Output 2 × Discrete Subwoofer Outputs, 11.2-channel Preamp Outputs
Video and Display
8K Video Passthrough Yes (8K/60 Hz & 4K/120 Hz via 4 × HDMI inputs and 1 × HDMI output)
HDR Compatibility Dolby Vision, HDR10+, HLG, 4:4:4 Color, Rec. 2020, HDCP 2.3, 40 Gbps bandwidth
HDMI Inputs 4 × HDMI inputs (8K/60 Hz and 4K/120 Hz support)
HDMI Outputs 1 × HDMI output (eARC/ARC supported)
Surround Sound and Processing
Surround Sound Processing Dolby Atmos, DTS:X, Dolby Surround Upmixer, DTS Neural:X Surround Upmixer
Power and Cooling
Amplifier Type Class D (Hypex modules)
Physical Specifications
Dimensions (W × H × D) 17-1/2″ × 6-3/16″ × 18-5/8″ (44.45 cm × 15.7 cm × 47.31 cm)
Weight 27 lbs (12.2 kg)
Additional Features
Room Correction Dirac Live
Protection & Convenience Power Guard®, Sentry Monitor™, Power Control (auto on/off), Eco-on/off signal sensing, FM Tuner, web-based setup
Control Options RS-232, Web IP, IR Input, 2 × 12 V trigger outputs, remote control
Certifications and Warranty
Warranty 3 Year Limited Warranty

McIntosh MHT300 7.2 Channel Home Theater Receiver FAQs

Does the MHT300 really deliver its rated power with all channels driven?

Yes. McIntosh states the MHT300 delivers 120 W into 8 Ω or 150 W into 4 Ω to all seven channels simultaneously.

How many HDMI ports are there and do they support 8K/60 and 4K/120 with eARC and HDR?

4 HDMI inputs + 1 HDMI eARC/ARC output, all 40 Gbps, support 8K/60 & 4K/120, Dolby Vision/HDR10/HLG, Rec. 2020, HDCP 2.3.

Does it include Dirac Live—and do I get the microphone and license?

Yes. It’s 3U rack-mountable and ships with rack brackets, or you can shelf-mount it.

Can I rack-mount it, and what size rack space does it need?

Yes. It’s 3U rack-mountable and ships with rack brackets, or you can shelf-mount it.