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Krix MX-40 Modular Speaker System

Ships in 2 to 3 weeks
Per our dealer agreement this product is unavailable for sale online. Please call 1800 69 2225 to order.

Perfection can take time

Krix speakers are usually made-to-order in South Australia, with construction beginning once your order has been placed. This process ensures great attention to detail is applied to each and every speaker, but it can also take time - sometimes around 2 weeks.

Give us a call

A premium product like this deserves the personal touch, so we would love to speak with you to ensure everything is perfect from start to finish. Please feel free to call us (or visit us in-store) to discuss your new system.


The phenomenal wall of sound from Krix.

Sits behind your acoustically transparent screen.


Key Features

- Behind screen cinema quality speakers
- 3-Way design
- Bi-wire capable
- Easy to install
- Krix Infinite Baffle Wall
- Massive Dynamic Range

The Flagship of the Series MX Range

The MX-40 is the flagship system of the Series MX range. Featuring a 3-way, bi-wire design, it is capable of immense sound pressure levels while maintaining the absolute highest level of soundtrack reproduction.

Experience Realism

The MX-40 screen speaker system is the first in the Series MX range to incorporate a 3-way design - delivering an incredibly smooth, consistent and compelling experience that encompasses the true dynamic power and clarity of real cinema sound.

Much like the MX-30, the MX-40 is best suited to larger home cinemas that are five to fourteen metres in depth. The new 3-way design features a dedicated high frequency compression driver and newly engineered 152mm midrange driver, both coupled to a brand new single-mould, dual-horn system that has been developed by Krix over three years. Principle benefits of the horn are a uniform, constant directivity pattern, improved frequency response and extremely low distortion, even when pushed to extreme sound pressure levels.

The 380mm bass drivers are made from a high stiffness paper cone, with a 77mm voice coil for increased linear excursion and a powerful vented magnet assembly lowers distortion.

Each of the two subwoofers contain a 455mm driver with 100mm voice coil, dual spider and vented magnet assembly for clean, tight and powerful bass that you'll hear... and feel.

The MX-40 is the first Series MX system that is bi-ampable and incorporates two pairs of binding posts per speaker module. The patterned acoustic material on the front baffle gives the unit a refined style and increases the overall surface area of absorption.

For the ultimate cinema experience at home, play it through Krix.

Modular System

In a commercial cinema, sound is heard but not seen, with a wall of speakers driving the dynamic soundtrack directly through the big screen for the ultimate sound experience.

As leading developers of commercial cinema speakers, Krix delivers the cinema sound experience to your home cinema with Series MX. These unique modular behind-screen speaker systems, designed to be installed behind an acoustically transparent screen, will conceal everything but cinema quality sound.

Combined with matching surround speakers, Series MX truly delivers the excitement, presence and impact of real cinema, at home.

The Krix Infinite Baffle Wall, which has been installed in commercial cinemas since the early 1980s, is also replicated in the MX series. The thick, acoustic absorption material on the front baffle of the speakers minimises reflections and prevents sound leakage behind the screen, for a high energy sound you can feel. For large or cinemascope screens, Krix’s optional low frequency absorption spacer modules can be used in pairs to ensure a wide, realistic soundstage.

Easy To Install

These speaker systems are designed to be installed behind an acoustically transparent screen, just like the speakers in a commercial cinema. They create a wall of sound directly from the picture, so everyone gets the full movie experience and impact. The five speaker modules (left, center, right and two subwoofers) in each system are all the same height and depth, making the design of the room and installation of the speaker system much simpler.


Control and Definition

These proprietary products have been developed by Krix over a 10 year period using powerful Finite Element Analysis (FEA). Krix patented horn technology provide exceptionally flat frequency response, precise pattern control, and very low distortion. Seamlessly coupled with the dispersion pattern of the woofer, the sound is focused on the audience and away from the walls, resulting in reduced reflections which can muddy the sound.

The specially engineered bass drivers are professional low frequency loudspeakers and offer superb bass performance, high peak program power handling and high efficiency, capable of extreme sound pressure levels. The smooth response, wide frequency and dynamic range are features not often achieved in one woofer. The bass drivers have an oversized ferrite magnet structure with components engineered to achieve maximum efficiency. Symmetrical gap geometry, combined with the large linear voice coil travel, ensures minimum distortion at all levels.

Cabinet Construction

Built from 18mm MDF with a black vinyl veneer, the cabinet is braced with Krix proprietary “X bracing”. This technique braces all the panels of the box in an asymmetrical way and also provides appropriate baffling to virtually eliminate standing waves in the enclosure and reduce panel vibrations.

Front Mount Concealed Terminals

Simply slide the modular system into its allotted space and connect the speaker cables into the special recess at the bottom of each enclosure, then replace the foam plug to conceal the cables.

Massive Dynamic Range

These cinema speakers are the real deal; the components and drivers are the same as those used in commercial cinemas. They are therefore efficient, powerful and reliable, and present a very easy load for the amplifier. Together with the Krix Infinite Baffle System they do not need large amounts of power to give you the full cinema experience.

Finished in 'Cinema Black'

Adorning all dedicated home cinema and commercial cinema speakers, this dark, stipple textured finish complements the true power within these mighty speakers.

More Information
Model Number MX-40
RRP 28,995.00


LCR Speaker Modules
- Frequency Range: 38Hz - 16kHz in-room response
- Power Handling: Low frequency element: 100 - 700 Watts RMS recommended amplifier power
- Power Handling: High frequency element 100 - 400 Watts RMS recommended amplifier power
- Sensitivity: Low frequency element: 98dB for 2.83 volts at 1 metre
- Sensitivity: High frequency element: 101dB for 2.83 volts at 1 metre
- Impedance: Low frequency element: 8 Ohms
- Impedance: High frequency element: 8 Ohms
- Configuration: 3-way Bi-amp
- Crossover Frequency: 400Hz Active crossover required - see manual for recommended crossover settings
- Enclosure Type: Bass reflex, front vented
- Low-Frequency Driver: Single 380mm (15") high stiffness paper cone driver with 77mm (3") voice coil of optimal length for increased linear excursion, wound on high temperature apical former and powerful vented magnet assembly designed for low distortion
- Mid-Frequency Driver: Krix proprietary 90º x 40º short throw dual horn with 152 mm (6") paper cone driver, ferrite magnet, 38 mm (1 ½") voice coil and copper shorting ring
- High-Frequency Driver: Krix proprietary 90º x 40º short throw dual horn with compression driver, 1" throat, 1¾" edge-wound aluminium voice coil and Nomex former
- Input Terminals: Gold plated spring terminals
- Dimensions: 1220mm high x 550mm wide x 335mm deep (3165mm wide including subwoofer modules)

Subwoofer Modules
- Frequency Range: 25Hz - 200Hz in-room response
- Power Handling: 200 - 1400 Watts RMS recommended amplifier power
- Sensitivity: 100dB for 2.83 volts at 1 metre
- Impedance: 8 Ohms
- Enclosure Type: Bass reflex, front vented
- Low-Frequency Driver: Single 455mm (18”) paper cone driver. 100mm (4”) edge-wound copper voice coil, dual spider assembly and vented magnet assembly
- Input Terminals: High-level gold plated spring terminals
- Dimensions: 1220mm high x 750mm wide x 335mm deep (3165mm wide including LCR modules)

System Recommendations
- Recommended Room Depth: 5m to 14m
- Minimum Screen Size (16:9): 145" (3210mm x 1806mm)
- Minimum Screen Size (21:9): 135" (3152mm x 1351mm)
- Adaptable to wider screen sizes using specially designed-by-Krix low frequency absorption spacer modules between the speakers

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5 Year Warranty
All Krix speakers are Australian designed and Australian made.
Krix are so confident in the quality of their products that they provide a 5 Year Warranty with all new Krix speakers.
To claim your warranty, please register your product with Krix within 90 days of the purchase date.

Register with Krix
How much does delivery cost?
We offer free post on all orders over $29 to anywhere within the Australian mainland and Tasmania.

Can I pick up my purchase from your store?
Yes. You can usually pick up your order from one of our stores. We recommend that you contact us first to ensure your order is ready for collection.

What happens if I'm not happy with my product when it arrives?
All change of mind returns must be in as new condition, in original packaging. We provide a generous 30-day change-of-mind guarantee on our products (unless otherwise stated). All change of mind returns must be in as new condition, in original packaging.

Please visit our FAQ page for answers to other frequently asked questions or contact us if you have any other questions or comments.