XTC8
The Motion XT CI XTC8 represents true next-level performance over the MC8, featuring MartinLogan's largest and highest-performing Folded Motion XT tweeter paired with an 8-inch woven Kevlar woofer. This premium in-ceiling speaker delivers noticeable improvements in sound quality while reducing unwanted room acoustic artifacts through controlled 80° x 30° dispersion. The FMT XT tweeter features 40% larger radiating surface than standard Folded Motion tweeters, providing increased audible bandwidth, reduced distortion, and enhanced efficiency. The woven Kevlar cone with special Nomex backing layer offers increased rigidity and lightness while reducing resonance and ringing. A more substantial chassis strengthens the speaker for more accurate sound reproduction similar to premium box speakers. The XTC8 is perfect for high-performance whole-house music systems or premium home theaters where controlled dispersion allows precise sound placement even in acoustically challenging rooms. The combination of advanced drivers and controlled dispersion delivers unheard levels of realism from an architectural speaker. Optional back-box available for sound control applications.
For true next level performance over the MC8 (its Motion CI counterpart), the XTC8 features our largest and highest performing FMT XT and a woven Kevlar woofer. These features make a noticeable improvement to the sound but also help to reduce unwanted room acoustic artifacts. With a more controlled 80° x 30° dispersion, the FMT XT is a powerful tool that delivers unheard levels of realism from a CI speaker in even the most acoustically challenging rooms. The XTC8 is a great choice for a high performance whole house music system, or for premium home theater. Its unique combination of high-performance drivers and controlled dispersion allows you to control where sound is placed in a room and provides an even better experience.
The MartinLogan Motion XT CI series takes performance to the next level over Motion CI. The Folded Motion XT tweeter gives each model in the Motion XT series even more of the clarity, output and efficiency that the standard size FMT is famous for. With Motion XT, we wanted to increase all aspects of performance over the Motion series, so we didn’t just stop at the tweeter. All Motion XT models feature woven Kevlar woofers for increased rigidity and lightness as well as a special Nomex layer on the back side of the woofer material which increases clarity and realism by reducing resonance and ringing. In addition to the larger tweeter, and lighter, stronger woofers, MartinLogan’s design and engineering team has fitted the Motion XT series with a more substantial chassis to strengthen the speaker and provide a more accurate sound, similar to a better cabinet on a traditional speaker. The Nomex layer and the chassis are not something you can see after installation, but it matters to the performance of the speaker, so it matters to us. With Motion XT CI, the difference is in the details.
Frequency Response | 51 - 25,000 Hz ±3dB |
Tweeter Dispersion (horizontal x vertical) | 30 x 80 degrees |
Recommended Amplifier Power | Range 50–300 Watts |
Sensitivity | 91dB @2.83V/ 1 meter |
Impedance | 4 ohms. Compatible with 8 ohms |
High Frequency Driver | FMT Transducer 1.27” x 2.4” (3.22cm x 6.09cm) Opening 4.5” x 2.75” (11.43cm x 6.98cm) Diaphragm |
Crossover Frequency | 2,270 Hz |
Crossover Type | 2 way |
Driver Configuration | 1 x 1.27” x 2.75” FMT, 1 x 8” Woofers |
Woofer Specifications | One 8” (20.32 cm) cast aluminum basket, black Kevlar with Nomex backer cone, Open back chamber format. Concave dust cap. |
Cabinet Material | Black w/ White Paintable Grill |
Connector | Push style |
Components | Custom air core coil inductors, polypropylene film capacitors in series and low DF electrolytic capacitors FMT thermal/current protection. |
Max Power Handling | 150 Watts |
Weight | 7.9 lbs. (3.6 kg) each |
Dimensions (overall size) | 10.35” x 5.30” (26.30 x 13.46cm) |
Required Wall Opening (includes tolerance) | 9.25” (23.5cm) diameter |
Projection From Wall Surface | 0.33” (23.5cm) |
Depth Behind Wall Surface | 5.50” (13.97cm) |
The Sound of Invisibility: Folded Motion® Tweeters
MartinLogan's signature Folded Motion Tweeter utilizes 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 that of 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. Folded Motion XT tweeters advance thin-film transducer technology even further with a 40% larger radiating surface and 80x30-degree controlled dispersion. This upgrade 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 superior realism and alarming specificity that is aurally astounding, and only by MartinLogan. 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 Folded Motion tweeters eight to ten 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.
Woven Kevlar Cones
All Motion XT CI speakers feature very lightweight woven Kevlar cones specifically engineered to keep pace with the lightning speed of our highest performance Folded Motion Tweeter XT. While these high-performance drivers offer both increased rigidity and lightness, we took an extra step by adding a special Nomex layer on the back side of the woofer material which increases clarity and realism by reducing resonance and ringing. This layer is not something you can see after installation, but it matters to the performance of the speaker, so it matters to us. No matter which Motion XT CI speaker you choose for your room, rest assured they are designed to provide a consistently high level of performance and can easily be used with other MartinLogan speakers to make creating the perfect system for your unique listening space that much easier.
Spring-Loaded Binding Posts
With easy pre-installation access, our spring-loaded binding posts feature a large 4.5mm wire access hole and connect via banana plug, pin, or 12AWG bare wire.
Micro-Perforated Grilles
All architectural speakers feature 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 damage during installation. Optional square grilles are available for all current in-ceiling speakers.
Hand-Selected Components
In designing each crossover topology, we take 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.