McIntosh MHT300: pushing the boundaries of home theater

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Updated on 29 August 2023

The McIntosh MHT300 is the legendary blue VU-meter manufacturer’s first AV receiver. It features seven amplification modules in a modular configuration with 7.2 or 5.2.2 channels (7.2.4 in pre-out). Dolby Atmos and DTS:X compatible, this McIntosh AVR is an exceptional performer as it delivers a phenomenal 7 x 120W into 8 ohms or 7 x 150W into 4 ohms. The HDMI 2.1 inputs support the latest UHD 4K 120Hz and 8K 60Hz standards, while a host of exclusive technologies promise the ultimate cinematographic and musical experience. Is the €10,000 price tag justifiable given the competition from the Denon AVC-A1H, Anthem MRX 1140 and Marantz SR-8015?

The American manufacturer’s first integrated AVR, the McIntosh MHT300 promises the ultimate cinema experience thanks to its colossal power and many exclusive technologies.

McIntosh and home theater

While McIntosh has been synonymous with hi-fi excellence for over 70 years, the manufacturer has also made its mark in the world of home theater. As early as the 1990s, McIntosh garnered an enviable reputation among the most discerning movie lovers. However, up until now the brand had focused on systems comprised of AV processors such as the McIntosh MX123 and McIntosh MX180, and multichannel power amps like the McIntosh MI254 (4 channels), McIntosh MI347 (7 channels), McIntosh MC257 (7 channels) and McIntosh MC303 (3 channels). With the new McIntosh MHT300 integrated AVR, the manufacturer now wants to offer the same high-end cinema experience with an integrated model. 

McIntosh MHT300: accessories 

The McIntosh MHT300 comes with a wide range of accessories, including a telescopic tripod that allows you to position the calibration microphone at ear height. Also included are rack mounting brackets and screws, a power cable, a setup guide and an infrared remote control.

The McIntosh MHT300 AVR comes with a telescopic tripod to place the calibration microphone at ear height.

McIntosh MHT300: presentation

Design 

With its seven amplification channels, the McIntosh MHT300 inevitably forgoes the iconic blue VU-meters due to lack of space in the front panel. Nevertheless, the receiver is still elegant, with an anodized aluminum chassis whose design is a subtle combination of the McIntosh MEN220 equalizer and McIntosh C49 CD player. The top panel and sides are perforated to ensure entirely passive and therefore silent heat dissipation. Like many of the brand’s processors, the McIntosh MHT300 can be rack-mounted using the included brackets. Naturally, it is also possible to simply install it on top a piece of furniture thanks to its rubber damping feet.

The McIntosh MHT300 features a robust metal chassis with a luxurious finish.

The front panel of the McIntosh MHT300 AV receiver is covered by a glass plate, at the center of which is a backlit screen. It displays important information such as the source, the video definition and the format of the program’s soundtrack. Above the display, the McIntosh name and the receiver model glow thanks to a lighting system that adjusts harmoniously with the screen’s brightness. You can increase the intensity to keep the display legible in daylight, or conversely, reduce the brightness for a movie session in the dark. Unfortunately, there’s no option to completely deactivate this feature. Something that would have been particularly useful when the receiver is placed directly under the projection screen.

The McIntosh MHT300’s glass front panel features a backlit screen that displays various information such as the volume, the source and the audio format.

Powerful and versatile

The McIntosh MHT300 is one of a kind, with 7.2 entirely modular amplification channels. Each module can be configured separately to adapt to all speaker setups. Internally, it is possible to amplify tracks over 7.2 channels or 5.2.2 channels for Dolby Atmos and DTS:X vertical formats. As each module benefits from a dedicated Main-In input, it is possible to connect an external preamplifier to amplify any other channel. For example, if your home theater speaker configuration is limited to 5.1 channels, the two additional modules can be combined with a hi-fi preamplifier and a pair of stereo speakers to enjoy music in another room, or to bi-amplify the main speakers. RCA 7.2.4 channel pre-outs provide even more possibilities, enabling the addition of one or several power amplifiers.

Each of the McIntosh MHT300’s channels has its own RCA input and pre-out, allowing you to easily create the configuration of your choice.

McIntosh’s reputation is founded on the remarkable qualities of its electronics, and their extraordinary power output. The McIntosh MHT300 is no exception, delivering a colossal power of 120 watts into 8 ohms and 150 watts into 4 ohms per channel. While these figures may seem modest compared to the competition, it is crucial to understand that most receivers present their output power in stereo, or with a single channel in operation. The McIntosh MHT300, on the other hand, is capable of delivering this power on all its channels simultaneously, totaling over 1,050W into 4 ohms. In other words, it can power the most demanding home theater speakers without the slightest difficulty. 

The McIntosh MHT300 receiver benefits from numerous technologies introduced by the American manufacturer’s hi-fi models. In particular, it features the PowerGuard signal overload technology that allows you to use the receiver’s full power without overdriving or damaging the speakers. The output section uses the Sentry Monitor short-circuit protection, which disengages the circuit if the current approaches unsafe operating levels before automatically resetting it when operating conditions return to normal.

The McIntosh MHT300 AVR benefits from a wide range of exclusive technologies that improve the sound and protect the speakers.

Dirac Live calibration

To provide the best possible sound reproduction in any room, the McIntosh MHT300 AV receiver incorporates a Dirac Live auto-calibration system. This technology, used both in hi-fi with amps such as the NAD M33 and JBL SA750, and home theater with the JBL Synthesis SDP-58 and NAD T778, allows you to automatically calibrate the sound using the included wired microphone, or using a computer and a USB microphone (not included). The Dirac Live system is then capable of optimizing the sound depending on the characteristics of the speakers, while also taking into consideration the acoustic properties of the room.

Thanks to the included microphone and the Dirac Live technology, the McIntosh MHT300 AVR can automatically adapt its reproduction according to the properties of the listening room and the speakers.

McIntosh goes even further by combining the Dirac Live calibration with a patented synchronization correction to erase any temporal alignment or phasing problems and extend the sweet spot. In our test room, the calibration allowed us to homogenize the reproduction, providing better perception of surround effects and a globally more realistic sound.

8K and 4K UHD

Although the McIntosh MHT300 receiver doesn’t have many HDMI inputs (only 4), they have the advantage of being compatible with the HDMI 2.1 standard. The latter supports video streams up to 8K/60Hz and 4K/120Hz. The HDR10+, HLG and Dolby Vision standards are also included to ensure that high dynamic range content is displayed correctly. However, it is important to note that the McIntosh MHT300’s inputs and outputs aren’t compatible with all the features associated with the HDMI 2.1 standard, notably the QWS, VRR and ALLM gaming functions.

The McIntosh MHT300 AVR’s four inputs and outputs are compatible with video streams up to 8K 60Hz UHD and 4K 120Hz UHD, as well as the HDR10+ and Dolby Vision standards.

Connectors

All the sources connected to the McIntosh MHT300’s inputs can be steamed to the single HDMI output, which is also 8K compatible. The connectors also include an RCA input for each amplification channel, a 7.2 pre-out section, as well as two optical inputs and two coaxial inputs. Thanks to the latter, it is possible to make up for the absence of audio streaming on the McIntosh MHT300 by connecting a music source such as a CD player, a preamplified turntable or a network player. Lastly, an integrated FM tuner allows you to enjoy your favorite radio stations directly in analog.

The McIntosh MHT300 receive is equipped with two coaxial and two optical inputs to connect any audio source, such as a network player and/or a CD player, for example.

Control

The McIntosh MHT300’s control interface is limited to two metallic knobs on the front panel. The first is for source selection, while the second controls the volume and turns the receiver on. The remote control included with the McIntosh MHT300 is therefore essential. It allows you to access the various settings menus and select favorite presets, and it can also control three other devices (TV, cable/satellite receiver, CD player…). This remote control is easy to use and provides intuitive access to essential buttons. The only thing missing is backlighting for use in the dark.

The McIntosh MHT300 AV receiver can be easily controlled using the infrared remote control.

McIntosh MHT300: key specifications

  • 7.2 channels (7.2.4 in pre-out)
  • 7 x 120W into 8 ohms
  • 4K 120Hz and 8K 60Hz UHD
  • HDR10+ and Dolby Vision
  • Dirac Live calibration
  • Calibration microphone and tripod

McIntosh MHT300: configuration

For our review, we connected the McIntosh MHT300 receiver to a 5.2.2 Dolby Atmos system comprised of Focal 300 IC LCR5 in-ceiling and Focal 100 ICW6 Atmos speakers. After that, we tested a Dali architectural system consisting of Dali Phantom M-250, Dali Phantom H60 and Dali Phantom E60 speakers. Each set was paired with two Rel and Dali subwoofers. The sources used were the Sony UBP-X800M2 and Reavon UBR-X200 4K UHD Blu-ray players, as well as an Apple TV 4K. Last but not least, the HDMI input was used to connect the Epson EH-TW-9400 projector and LG HU85LS short-throw projector.

Here, the McIntosh MHT300 AVR is paired with an Epson EH-TW-9400 projector and 5.1.2 channel home theater system with in-wall and in-ceiling speakers.

When turning the McIntosh MHT300 AV receiver on for the first time, the user is prompted to select the language of the menu and enter the speaker configuration used. McIntosh then recommends running the Dirac Live calibration. This involves connecting the microphone then placing it in the listening position, at ear level, using the included tripod. The sound reproduction is then automatically adjusted in less than 5 minutes. Afterward, you can customize bass and treble levels by +/- 12 dB.

Once the microphone is installed at the listening position, the calibration of the McIntosh MHT300 is automatically calibrated in just a few minutes by emitting a succession of sounds from each speaker. The result is uniform reproduction, improved perception of surround effects and a more realistic soundstage overall.

McIntosh MHT300: listening impressions

The McIntosh MHT300 AV receiver delivered a first-rate sound reproduction that served movie soundtracks brilliantly. We enjoyed the American manufacturer’s typical sound signature, with impressive dynamics and exemplary transparency. The McIntosh MHT300’s power was phenomenal and expertly controlled, adding rhythm to action scenes with credibility and presence, but without ever overwhelming the listener. During the aerial scenes in Top Gun: Maverick, it was as if there were F/A-18s flying through the room. The McIntosh MHT300 receiver fully unleashed its dynamism, allowing all the energy expended by the fighters to be felt physically. The accuracy of the reproduction was astonishing.

The McIntosh MHT300 AV receiver delivered the dynamic range needed to bring action scenes to life.

The McIntosh MHT300 AVR offered a wide soundstage and precise spatialization. The slightest details and nuances present on every channel were correctly positioned in the soundstage. With a 5.1.2 installation and Atmos speakers at the front of the room only, we enjoyed a true sound bubble and were completely immersed in the heart of the action. Sound effects flew through the room, but without an avalanche of decibels that destroyed everything in its wake. The soundtrack was incredibly harmonious, and every element was reproduced with vitality and precision.

The McIntosh MHT300 AVR provided an expansive soundstage in which every sonic element was placed with the utmost precision, contributing to a realistic reproduction of the movie or content’s atmosphere.

Perfectly balanced from the bass to the highs and unfailingly accurate, the McIntosh MHT300 AVR transformed musical compositions by masterfully reproducing each and every emotion that they conveyed. For example, with Hans Zimmer’s Prague concert, the McIntosh MHT300 demonstrated an innate sense of rhythm, reproducing the musicians’ performance with intensity. Attacks were crisp and incisive. The nuances and details of the violins were admirably highlighted. High frequencies unfolded with remarkable ease and without an iota of harshness. The most delicate notes were reproduced with infinite smoothness and subtlety. Vocals were rich and textured, and every intonation was rendered with extreme finesse. They were expressed seamlessly and naturally.

The McIntosh MHT300 AVR demonstrated perfect spectral balance and a great sense of analysis to accurately reproduce movie and concert soundtracks.

McIntosh MHT300: compared to…

Denon AVC-A1H: available for €6,990, this Denon receiver is designed for the most sophisticated installations thanks to its 11.4 channels, convertible to 9.4.6 channels for Dolby Atmos, DTS:X or Auro 3D configurations. Another advantage: its compatibility with QMS, VRR and ALLM technologies make it entirely compatible with the latest video game consoles. Lastly, the Denon Heos ecosystem natively integrates numerous streaming solutions and online music services. However, the McIntosh MHT300 is more powerful, energetic and refined. 

The Denon AVC-A1H AVR is more flexible with its 11.4 channels, integrated streaming and gaming features, but can’t compete with the energy and musicality of the McIntosh MHT300.

McIntosh MHT300: who is it for?

The McIntosh MHT300 is a high-end solution for the most prestigious home theater rooms and installations. Capable of developing up to 7 x 120W into 8 ohms, this receiver is ideal for high-volume listening sessions or for use with demanding speakers, revealing their full potential. A perfect symbiosis between the world of cinema and hi-fi, the McIntosh MHT300 is a versatile solution that lets you enjoy both music and film soundtracks from a single device.

With its colossal power and outstanding signal processing, the McIntosh MHT300 AV receiver is perfect for the most sophisticated home theaters and installations.

McIntosh MHT300: conclusion 

For its first integrated AV receiver, McIntosh has produced a model that still lacks some of the features of its rivals. In particular, the absence of gaming and streaming features, as well as limited connectors. However, these shortcomings are forgotten as soon as you start listening to the McIntosh MHT300. So much so that this model surpasses any other competitor. Its impressive dynamics, unrivalled transparency and control, which is on a par with the best hi-fi systems, make it completely beyond reproach. The McIntosh MHT300 reproduces movie soundtracks and music with incomparable precision and realism. It’s enough to make you wonder whether it’s still worthwhile for the manufacturer to offer separate systems with an AV processor and separate power amp.

We liked:

  • The unique design
  • The colossal power
  • The incredible dynamics
  • The perfect spectral balance
  • The natural tones

We would have liked:

  • QMS, VRR and ALLM compatibility
  • A network connection for streaming
  • More HDMI inputs
  • A backlit remote control
  • To have been able to deactivate the lighting on the front panel

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