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MartinLogan Motion XT CI XTW6

In-wall speaker with built-in back-box

Item # 839XTW6

This stealthy in-wall speaker lets you enjoy MartinLogan's signature sound while saving shelf and floor space.

This stealthy in-wall speaker lets you enjoy MartinLogan's signature sound while saving shelf and floor space.

Item # 839XTW6

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$799.99 each

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About the MartinLogan Motion XT CI XTW6

Kramer Crane

Stealthy in-wall audio from MartinLogan

I'm a big fan of in-wall speakers for music and movie soundtracks — especially when space is at a premium. The Motion XTW6 is an excellent choice for small- to medium-sized rooms where you want to enjoy MartinLogan's signature sound without speakers taking up shelf or floor space.

Stealthy in-wall audio from MartinLogan

I'm a big fan of in-wall speakers for music and movie soundtracks — especially when space is at a premium. The Motion XTW6 is an excellent choice for small- to medium-sized rooms where you want to enjoy MartinLogan's signature sound without speakers taking up shelf or floor space.

MartinLogan Motion XTW6 in-wall speaker

The built-in back-box ensures well-balanced sound and protects against dust and dirt

An acclaimed tweeter delivers smooth, sweet highs

One of the reasons the Motion XTW6 sounds so good is its Folded Motion® tweeter. This unique, accordion-style design yields quick, accurate, and very smooth highs. 

The Folded Motion tweeter is paired with a 6-1/2" woven fiberglass woofer that delivers textured midrange and tuneful bass.

Build a Motion Series home theater

Pair the XTW6 with other MartinLogan Motion Series speakers for dynamic, voice-matched surround sound:

DIY installation 

If this is a do-it-yourself install, check out our guide to installing in-wall speakers, along with our selection of in-wall speaker wire

You can paint the included magnetic grille to have your speaker blend in with your décor.


Product highlights:

  • ideal for use in a stealthy home theater system, or as part of an in-wall stereo music system
  • built-in back-box ensures well-balanced sound and protects against dust and dirt
Design and specs:
  • 1.27" x 2.4" Folded Motion tweeter for smooth, natural highs
  • 6-1/2" woven fiberglass woofer for tight bass and textured midrange
  • frequency response: 56-25,000 Hz (±3 dB)
  • recommended amplifier power: 50-200 watts
  • sensitivity: 91 dB
  • impedance: 8-ohms compatible
  • ultra-thin bezel and paintable magnetic grille to match your décor
Warranty and dimensions:
  • cutout dimensions: 7"W x 10-1/8"H
  • overall dimensions: 8-3/16"W x 11-3/16"H
  • mounting depth: 3-7/16"
  • weight: 7.1 lbs.
  • warranty: 5 years
  • MFR # XTW6

What's in the box:

  • In-wall loudspeaker
  • Grille
  • T20 torx-bit
  • User's Manual
  • Cutout Template

Customer reviews for MartinLogan Motion XT CI XTW6

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More details on the MartinLogan Motion XT CI XTW6

Stacey B.

Features & specs

Quantity in Package Single
Tweeter Folded Motion Ribbon
Aimable Tweeter No
Woofer Composition Kevlar
Woofer Surround Rubber
Connector Type Spring post
Bi-Amp Inputs No
Built-in Back-box Yes
Moisture Resistance
Indoor (Moisture-resistant) No
Outdoor (Partial Exposure) No
Outdoor (Full Exposure) No
Tweeter Size 1.27 x 2.4
Midrange Size N/A
Woofer Size 6.5
Speaker Shape Rectangle
Cutout Width 7
Cutout Height 10.125
Mounting Depth 3.4375
Power Range (Watts) 50-100
Sensitivity 91 dB
Impedance (Ohms) 8
Frequency Response 56-25kHz
Parts Warranty 5 Years
Labor Warranty 5 Years

Product Research


MartinLogan Motion XT CI Series: MartinLogan Motion XT CI speakers sound incredible in practically any room. Regardless of the environment, the Motion XT CI speakers just sound better, more articulate, more detailed, and more realistic. With Controlled Dispersion and one of the most responsive tweeters (FMT XT) in the industry, these in-wall and in-ceiling loudspeakers can compete with and often exceed the performance of many traditional cabinet loudspeakers.

Application: The MartinLogan Motion XT CI Sereis XTW6 in-wall loudspeaker is ideal for 2-channel stereo, multi-channel home theater, and distributed audio installations. In a home theater application, the XTW6 can be used as a front and/or rear channel speaker.

FMT (Folded Motion Tweeter) XT: MartinLogan's signature Folded Motion Tweeter XT utilizes an extremely low-mass diaphragm that "squeezes" air, thus requiring significantly less excursion than the typical 1" dome tweeter. Its folded design allows for a much larger surface area (compared to that of a regular 1" dome tweeter), controlled dispersion characteristics, and vanishingly low distortion. It delivers much of the high-frequency detail, speed and response of a large, dynamic electrostatic panel in a small space. The FMT XT increases audible bandwidth without sacrificing detail and reduces distortion to an incredibly low level while increasing efficiency and the tweeter's already lightning-fast response time. The result is greater clarity, output and efficiency.

  • Thin-Film Transducer Design: This thin-film transducer design packs all the accuracy and delicacy of an electrostatic panel into a small space. Folding the dramatically lightweight film into an accordion-like structure increases the surface area, giving the Folded Motion XT 8-10x 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. In these characteristics, the Folded Motion Tweeter XT design can mimic the performance of a large electrostatic panel in the confines of a more traditional loudspeaker enclosure.
  • 80x30 Degree Controlled Dispersion: MartinLogan Motion XT CI loudspeakers feature Controlled Dispersion to improve the clarity and overall quality of your music and media. The Folded Motion Tweeter XT further focuses the sound into an 80x30 degree dispersion pattern to further reduce the harmful acoustic effects presented by nearly every room. By focusing the sound on the actual seating area and not wasting energy on spaces where no one is sitting (IE: the ceiling) the XTW6 achieves greater sound quality by removing unwanted sound reflections, while simultaneously reducing the potential for distracting amounts of sound to travel into unwanted areas of your home.

Woven Kevlar Woofer Cone: The 6.5" midbass woofer features a very lightweight woven Kevlar cone specifically engineered to keep pace with the lightning speed of the high erformance Folded Motion Tweeter XT. The high-performance midbass woofer offers both increased rigidity and lightness, plus a special Nomex layer on the back side of the cone material to increase clarity and realism even further by reducing resonance and ringing. The midbass woofer is house in a more substantial chassis than most in-wall speakers to strengthen the loudspeaker and provide a more accurate sound, similar to a cabinet on a traditional speaker.

Proprietary Vojtko Crossover Network: Vojtko Crossovers are hand-built from the highest quality components and avoid overly complex topologies. This crossover network has a straight-forward objective of delivering breathtaking realism. The proprietary Vojtko crossover design is just as crucial to MartinLogan's "Truth-in-Sound" Philosophy as their innovative electrostatic and Folded Motion thin-film driver technologies. Vojtko crossovers are named after MartinLogan's chief audio technologist, Joe Vojtko.

  • The proprietary crossover network 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 microscopic sonic nuances while handling the full dynamics of any source. It's a recipe for vanishingly low distortion and seamless driver integration.
  • The most critical aspect of a Vojtko crossover design is the final voicing, always conducted in a "real-world" environment. This uniquely pragmatic approach guarantees that the Motion XT CI speaker delivers MartinLogan's "Truth-in-Sound" in any room, including yours.

Micro-Perforated Grille: All MartinLogan Motion XT CI in-wall loudspeaker features an ultra-low profile, paintable, micro-perforated grille with no visible bezel for a near-invisible integration into almost any wall. A series of powerful magnets hidden inside the speaker quickly secure grilles into place, reducing the risk of warping or damage during installation. The micro-perforated grille only protrudes 0.1875" from the wall. The grille can be painted to match the color of your wall.

In-Wall Installation: The XTW6 speaker installs in drywall (0.25"-1.0" thick) between wall studs and requires a rectangular cutout that measures 7.0" (w) x 10.125" (h) x 3.4375" (d). The speaker secures in the wall using the integrated "dog-ear" mounting clamps. There needs to be at least 0.75" of clearance around the inside of the cutout to accommodate the "dog-ear" mounting clamps. Increasing the rigidity of your walls may improve sonic performance. To do this consider adding cross bracing inside of the wall approximately 12" above and below the speaker.

Note: Always be careful to avoid electrical wires behind the wall's surface.

Placement Options: These MartinLogan XTW6 in-wall speaker offers superb imaging and flexible placement in nearly any location. However, for best performance and imaging place speakers equidistant from the primary listening position and avoid physical obstructions between the speaker and primary listening position. Keep in mind, the farther away the listener is from the speaker, the wider the coverage area of the tweeter becomes. Corner placement of these speakers will reinforce their bass output. If you require balanced output across the entire audio spectrum avoid mounting these speakers in a corner.

  • Place a pair of front speakers or center speaker equidistant between 10' to 14' from the listening position.
  • Place the in-wall speaker a minimum of 12" from any wall corner.

Spring-Post Terminals: The MartinLogan XTW6 is outfitted with a set of spring-pots terminals for connection of your in-wall speaker wire. The spring-post terminals will accept bare wire (up to 12AWG) and banana plugs (single only).

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