MartinLogan

In-Wall Speaker

One of the most compact in-wall speakers in MartinLogan history, the MW4-LCR expertly blends high performance and maximum flexibility. The MW4-LCR is a true "Left, Centre, Right" speaker that can be used as a front, surround or centre channel wherever high quality sound and a small footprint are desired.

SPECIFICATIONS
Frequency Response

78 - 25,000 Hz ±3dB

Aiming

N/A

Sensitivity

93dB @2.83V/ 1 meter

Impedance

Compatible with 8 ohms

Crossover Frequency

2,800 Hz

High Frequency Driver

FMT Transducer 1” x 1.4” (2.6cm x 3.6cm) Opening 5.25” x 1.75”(13.3cm x 4.4)

Low Frequency Driver

4” (10.16 cm) black fiberglass cone

Suitable Amplifier Range

50–200 Watts

Max Power Handling

100 Watts

Binding Post Inputs

Push style accommodates wire up to 12AWG

IN THE BOX

Sold per piece

DIMENSIONS
Weight

6.02 lbs.
(2.73 kg) each

Dimensions (overall size)

12.74” x 6.13” x 2.69”
(32.36 x 15.56 x 6.82cm)

Required Wall Opening (includes tolerance)

11.87” x 5.25”
(30.14cm x 13.34cm)

Projection From Wall Surface

0.28”
(0.7cm)

Depth Behind Wall Surface

2.57” (6.52cm)

All MartinLogan Motion CI Series speakers feature the brand's signature Folded Motion Tweeter or FMT. This innovative piece of audio technology provides incredible detail, precise clarity, clean output, and high efficiency in a small but mighty package. Pairing this tweeter with lightweight woven fibreglass woofers means that Motion CI delivers a clean and balanced sound that is perfectly suited for any application.

Whether you listen to music, movies, or a little bit of everything, Motion CI gives you a true high-end audio experience at an affordable price. To round out the assortment, pre-construction brackets are available for all models, and in-ceiling models have square grilles and retrofittable back enclosures available separately.

The Sound of Invisibility: Folded Motion® Tweeters

MartinLogan's signature Folded Motion Tweeters utilise an extremely low-mass diaphragm that "squeezes" air, thus requiring significantly less excursion than the typical 1-inch dome tweeter. Its folded design allows for a much larger surface area (compared to a regular 1-inch dome tweeter), controlled dispersion characteristics, and vanishingly low distortion. It's a miracle of audio engineering that delivers much of the high-frequency detail, speed, and response of a large, dynamic electrostatic panel in a small space.

This thin-film transducer design packs all the accuracy and delicacy of an electrostatic panel into a small room. Folding the dramatically lightweight film into an accordion-like structure increases the surface area, giving Folded Motion Tweeters 8 to 10 times greater surface area than typical tweeters.

This ideal combination of light and large produces superior accuracy, extended frequency bandwidth and higher output capability. All with a faster, more efficient transient response, and virtually zero distortion. Thanks to these characteristics, the Folded Motion Tweeter design can mimic the performance of a large electrostatic panel in the confines of a more traditional loudspeaker enclosure.

Woven Fibreglass Cones

All Motion CI speakers feature lightweight woven fibreglass cones specifically engineered for their application to blend seamlessly with the lightning speed of MartinLogan's signature Folded Motion Tweeter.

No matter which Motion CI speaker you choose for your room, rest assured, they are designed to provide a consistently high level of performance and can be easily used with other MartinLogan speakers to make the perfect system for your unique listening space that much easier.

The MartinLogan Sound

MartinLogan Motion CI speakers sound great in any room. Regardless of the environment, MartinLogan speakers just sound better, more articulate, more detailed, and more realistic. With Controlled Dispersion and one of the most responsive tweeters in the industry, MartinLogan's in-wall and in-ceiling models can compete with and often exceed the performance of traditional cabinet speakers.

Learn More About Controlled Dispersion

Versatility: Distributed Audio, Music, and Home Theatre

More and more homes today are being either built or retrofitted with whole-house audio systems.

Whether you want quality sound in the kitchen or dedicated home theatre, MartinLogan Installer, Helos, Motion CI, Motion XT CI, and Masterpiece CI speakers deliver premium audio while disappearing into the wall or ceiling. With a wide range of products that suit all budgets, no room cannot be enhanced by MartinLogan sound. Easy installation to the wall or ceiling means that your audio sings without calling visual attention to itself. Great sound just happens.

Open Floor Plan Rooms

MartinLogan Motion CI in-wall and in-ceiling speakers feature Controlled Dispersion to improve the clarity and overall quality of your music and media. Room acoustics are extremely important. Everything in the listening room has an impact on the sound of your speakers, so MartinLogan tries to minimise the things that can cause harm to let you hear exactly what you are supposed to.

MartinLogan's design and engineering ensure that sound is focused where you want it. This is done by creating a specific area where sound is heard most clearly, bordered by a falloff zone where volume decreases smoothly and rapidly. This can help keep the sound within the room and make your media room a place where rich and full sound can be enjoyed without disturbing those in other parts of the home.

The benefits are twofold: less distracting sound where you don't want it, and clearer, more accurate sound where you do. Since the sound is focused onto the parts of the room that really matter, where your ears are, Controlled Dispersion helps avoid unwanted sound reflections that mask and colour the true clarity of the content.

With Controlled Dispersion, you hear more from your music and movies by freeing the sound from some of the harmful effects that room acoustics can have.

Rooms With Vaulted Ceilings

Vaulted ceilings may present a challenge to designers of in-speaker ceilings. MartinLogan meets that challenge with the brand's Folded Motion Tweeter. This remarkable device produces incredibly detailed sound that can be directed precisely where it's needed, preventing sound from bleeding into other parts of the home.

Motion CI in-ceiling speakers use the FMT to project sound into specific areas of the room, which makes them ideal for object-oriented systems like Dolby Atmos, DTS:X and Auro3D. The film's audio effects work in sync with the visual elements, so sound comes from all directions — around and above the listener.

The FMT directs sound precisely into your listening area, ensuring height and in-wall channels stay clear and powerful, even across distance. By focusing audio where it matters (your seating position) instead of dispersing it into unused spaces like ceilings, it minimises unwanted reflections and reduces sound spill into other areas of your home. The result is cleaner, more immersive sound.

Spring-Loaded Binding Posts

With easy pre-installation access, MartinLogan's spring-loaded bringing posts feature a large 4.5mm wire access hole and connect via banana plug, pin, or 12AWG bare wire.

Micro-Perforated Grilles

MW4-LCR features an ultra-low profile, paintable, micro-perforated grilles with no visible bezel for a near-invisible integration into any wall or ceiling. A series of powerful magnets hidden inside the speaker quickly secure grilles into place, reducing the risk of warping or damange during installation.

Proprietary Vojtko™ Crossover Networks

Vojtko Crossovers are named after MartinLogan's chief audio technologist, Joe Vojtko.

HIs unique approach to crossover design is just as crucial to MartinLogan's Truth in Sound as the brand's innovative electrostatic and Folded Motion thin-film driver technologies. A Vojtko Crossover isn't just a set of design requirements, it's a philosophy.

Vojtko Crossovers are hand-built form the highest quality components and avoid overly complex topologies. This crossover has a straightforward objective: breathtaking realism.

Hand-Selected Components

In designing each crossover topology, MartinLogan takes the drivers themselves into consideration. Carefully selected drivers, engineered for specific performance characteristics, are kept within their optimal frequency range by the custom Vojtko Crossover.

Each crossover is handcrafted using exceptional polypropylene and polyester capacitors, custom wound and large steel laminate low-DCR inductors, and double thick PCBs. This precision-tuned network preserves even the most mocroscopic sonic nuances while handling the full dyanmics of any source. It's a recipe for vanishingly low distortion and seamless driver integration.

The most critical aspect of a Vojkto Crossover design is the final voicing, always conducted in a real-world environment. This uniquely pragmatic appraoch gurantees that even the most amazing MartinLogan loudspeakers deliver Truth In Sound in any room, including yours.

Pre-Installation Brackets (Sold Separately)

Pre-installation brackets are available for every model in the Motion CI Series.