New Look MartinLogan Motion Series for Home Audio and Home Cinema

August 22 2019, 01:10
MartinLogan announced seven new Motion Series loudspeakers for music or home cinemas. Praised for performance and value since its introduction, when it came time to introduce a new generation of the Motion Series, MartinLogan decided not to mess with a good thing. The new line of modern, multi-application speakers utilizes the same benchmark-performance technology as previous generations of the Motion Series, updated with a modern and stylish new design. Available October 2019, the Motion Series features seven new models, including two floorstanding, two bookshelf, and two center channel speakers. 

Key features for the new MartinLogan Motion Series includes the Folded Motion and Folded Motion XT tweeters, complemented with aluminum cone midrange drivers and woofers featuring concave dust caps that reinforce the strength and rigidity of the cone. Premium models in the series use proprietary Vojtko crossover networks featuring custom air core coil and low DCR steel laminate inductors, as well as polypropylene film capacitors in series and low DF electrolytic capacitors in parallel.

Three luxurious finishes and matching metallic trim for the new series include gloss black with black grilles and gunmetal grey trim, matte white with silver grilles and silver trim, and red walnut with black grilles and champagne-colored trim. All featuring custom 5-way tool-less binding posts.

The Motion Series is inspired by the performance of MartinLogan’s ultra-high-end electrostatic loudspeakers, delivering rich detailed audio but at a more affordable price. To achieve that sound quality, MartinLogan's dedicated in-house engineering and design team started by utilizing and refining the most advanced, compact technologies and combining them with innovative engineering and time-honored cabinet construction techniques. The result, the company states, will rival or surpass traditional loudspeakers of similar size and price.

The success of the original Motion Series can also be directly attributed to MartinLogan’s legendary ultra-high-end electrostatic loudspeakers. The desire to transmute that level of performance into a more traditional speaker at a more affordable price drove the initial design imperatives that created the Motion Series.

MartinLogan’s signature Folded Motion tweeter utilizes an extremely low mass diaphragm that “squeezes” air, thus demanding 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. The result delivers much of the high-frequency detail and speed of a large, dynamic electrostatic panel in a small space.

The new Motion 60XTi, 50XTi, and 35XTi models, all feature Folded Motion XT tweeters, with a 40% larger radiating surface and 80x30-degree controlled dispersion. This tweak increases audible bandwidth without sacrificing details and minimizes distortion, while increasing efficiency and the tweeter’s already lightning-fast response time.

On the mid-frequency and bass, MartinLogan's engineers used custom built, low-distortion drivers, pairing high-power magnet structures with aluminum cone diaphragms to deliver massive excursion and sound output, preserve minute bass details, and maximize power handling capability. The unique concave dust cap design reinforces the strength and rigidity of the cone while reducing break up modes. 

The use of aluminum for cones maximizes rigidity and strength of the drivers without adding excessive weight. This, along with the exceptional damping properties of aluminum, ensures the smooth, non-resonant response necessary for seamless blending with the high-resolution Folded Motion tweeters. An added benefit of aluminum is its outstanding thermal conduction capability which allows cones to serve as efficient heat sinks for voice coils.

To deliver accuracy in the critical midrange, mid-frequency drivers feature a specially engineered "stiff" suspension. Stiffening the suspension (the spider and surround) raises the driver's resonant frequency and optimizes its performance to achieve a natural roll-off and inherently operate within an ideal range for a mid-frequency reproduction (as opposed to a comparably sized woofer).

The new Motion Series floorstanding models utilize 2.5-way designs that feature woofers positioned low in the cabinet and close to the floor, all using rear-firing bass ports. This deliberate design addresses a phenomenon known as floor bounce where sound reflected off the floor (from drivers positioned high on a cabinet), and those aimed directly at the listener interfere with each other. Through careful crossover design and driver positioning, the floorstanding Motion speakers deliver a more balanced response through the bass and midrange regions.

Premium Motion Series speakers feature proprietary Vojtko crossover networks using polypropylene and low-DF electrolytic capacitors, custom-wound inductors, and thermal and current protection. Vojtko crossovers are named after MartinLogan's chief audio technologist, Joe Vojtko. His unique approach to crossover design is as big of a part of the “MartinLogan Sound” as are electrostatic and Folded Motion thin-film driver technologies. Vojtko crossovers are always built from high-quality parts, and care is taken to avoid overly complex topologies — a straightforward objective due to the careful selection of woofers and tweeters. The final (and most critical) aspect of a Vojtko Crossover is that final voicing is conducted in a space that is indicative of a real-world environment. This pragmatic approach allows MartinLogan speakers to sound their best in real-world rooms.

The design is finally discreetly hidden behind fabric wrapped magnetic grilles, and the Folded Motion and aluminum cone drivers are held securely in place beneath a matte black trim that masks tweeter and woofer mounting hardware for a clean, modern aesthetic. Solid cabinets, designed to eliminate fidelity robbing vibrations, are constructed from 18mm (0.7-inch) MDF with 31mm (1.2-inch) thick front baffles. The Motion 60XTi and 50XTi models feature additional internal bracing to further reduce cabinet resonance.

These new Motion Series speakers are available in gloss black with black grilles and gunmetal grey trim, matte white with silver grilles and silver trim, and red walnut with black grilles and champagne-colored trim. Select models feature two sets of binding posts to accommodate bi-wire connections and allow each portion of the crossover to be directly coupled to the amplifier.

These are the seven new models in MartinLogan’s Motion Series. Three floorstanding speakers, with the Motion 60XTi featuring a Folded Motion XT tweeter, for USD $1599.99/each, and the Motion 40i and Motion 20i using Folded Motion tweeters, for USD $1,099.99 and $849.99 each, respectively. The two bookshelf models include the Motion 35XTi with Folded Motion XT tweeter for USD $649.99/each, and the Motion 15i for USD $399.99/each. For home theater applications, these can be complemented with the Motion 50XTi center channel speaker featuring a Folded Motion XT tweeter for USD $999.99/each, or the Motion 30i center channel for USD $749.99/each. All new Motion Series speakers will begin shipping October 2019.

The new Motion 35i and 60XTi speakers will be showcased at Rocky Mountain Audio Fest (RMAF) 2019, September 6-8, where MartinLogan will partner with Benchmark Media Systems in room 8128. Additionally, the new Motion Speakers will be demonstrated with dual Dynamo 800X subwoofers

All seven new Motion Series models will be also presented at CEDIA 2019 in Denver, Colorado, September 12-14, in booth SR-1.
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