Motion 30i center channel speaker.

Smaller multi-channel audio systems will benefit from the significant dynamic impact and detailed images revealed by a Folded Motion® tweeter and rear-vented 5.5-inch aluminum cone woofers and a proprietary Vojtko crossover network. The Motion 30i offers the classic and spacious sound of the Motion series from a newly designed housing enhanced by the slightest of modifications, including the transmission stabilizer dust cap design and reinforced engine suspension. The loudspeaker cabinet is provided with a reinforced baffle and a cloth grille. Available in three elegant finishes: gloss black, matt white and red walnut.

Engineering, without compromises.

What makes the Motion Series sound so amazing? MartinLogan's dedicated in-house engineering and design team began by utilizing and refining the most advanced and compact technologies and combining them with innovative engineering and traditional cabinet construction techniques. The result is an emotionally engaging sound that rivals (and most of the time stumbles) traditional speakers of similar size and price. Our 'no compromise' philosophy gives the Motion Series a unique sound that you won't find anywhere else.

Sound inspired by electrostatic speakers.

The success of the Motion series is directly attributed to its close relationship with 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.

Folded Motion® Tweeters.

MartinLogan's signature folded-motion tweeter uses an extremely low-mass diaphragm that "squeezes" air out, requiring significantly less excursion than a typical 1-inch dome tweeter. Its folded design allows for a much larger surface area (compared to a 1-inch dome tweeter), controlled dispersion characteristics, and easily disappearing distortion. It's a miracle of audio engineering that is capable of delivering much of the high-frequency detail and speed of a large dynamic electrostatic panel in a tight space.

Powerful low and mid frequency aluminum cone drivers.

Low-distortion, custom-built drivers combine high-power magnetic structures with aluminum cone diaphragms to deliver massive excursion and sound output, preserve bass detail, and maximize power-handling capabilities - all without a hint of distortion. A unique concave dust cap design enhances the strength and rigidity of the cone, while reducing breakage modes.

The use of aluminum for cones maximizes the rigidity and strength of the conductors without adding excessive weight. This, along with the exceptional damping properties of aluminum, ensures the smooth, non-resonant response necessary for a perfect blend with the high-resolution folded-motion tweeters. An additional benefit of aluminum is its excellent thermal conduction ability which allows the cones to serve as efficient heat sinks for the voice coils.

To deliver precision in the critical midrange, the mid-frequency drivers feature a specially designed "stiff" suspension. Hardening of the suspension (the spider and surround sound) increases the resonant frequency of the speaker and optimizes its performance to achieve a natural balance and inherently operate within an ideal range for mid-frequency reproduction (unlike a woofer of comparable size).

Vojtko Crossover Proprietary Networks.

The Premium Motion Series loudspeakers feature proprietary Vojtko crossover networks utilizing low FD polypropylene 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 much a part of the "MartinLogan Sound" as are electrostatic and folded motion thin-film driver technologies. A Vojtko crossover is not so much a set of design requirements as a philosophy. Vojtko crossovers are designed in such a way that all speakers are kept within their optimal frequency range and balanced with each other. The drivers themselves are part of a Vojtko crossover just as much as the capacitors and resistors. Before starting the design of any crossover, the speakers are carefully selected or designed to operate within a very intentional frequency range and with precise and predictable performance parameters. Vojtko crossovers are always built with high-quality parts, and care is taken to avoid overly complex topologies - a straightforward goal due to the careful selection of woofers and tweeters. The final (and most critical) aspect of a Vojtko Crossover is that the final voice takes place in a space that is indicative of a real-world environment. This pragmatic approach allows MartinLogan loudspeakers to sound their best in real-world rooms. a simple goal due to the careful selection of woofers and tweeters. The final (and most critical) aspect of a Vojtko Crossover is that the final voice takes place in a space that is indicative of a real-world environment. This pragmatic approach allows MartinLogan loudspeakers to sound their best in real-world rooms. a simple goal due to the careful selection of woofers and tweeters. The final (and most critical) aspect of a Vojtko Crossover is that the final voice takes place in a space that is indicative of a real-world environment. This pragmatic approach allows MartinLogan loudspeakers to sound their best in real-world rooms.

Modern design with luxury finishes.

Discreetly hidden behind cloth-wrapped magnetic grilles, the aluminum cone and Folded Motion drivers are held firmly in place under the matte black trim that masks the tweeter and woofer mounting tools to achieve a clean and modern aesthetic. Designed to eliminate fidelity-stealing vibrations, the rugged cabinets are constructed of 18mm (0.7 inch) MDF with 31mm (1.2 inch) thick front baffles. Motion 60XTi and 50XTi models feature additional internal bracing to further reduce cabinet resonance.

MartinLogan's Motion Series speakers are available in three luxurious finishes and a matching glossy black metallic with black and metallic gray grilles, matte white with silver and silver grilles, and red walnut with black grilles and champagne upholstery.

5-way tool-free custom binding posts.

Premium gold-plated 5-way tool-less binding posts ensure a stable connection while accommodating bare wire, banana plug, spade lug, terminal plug, and alligator clip connections (which rarely used).

Specifications are subject to change without notice.

Frequency response.

65-25,000 Hz ± 3dB.

Recommended amplifier power.

20-200 watts per channel.

Horizontal dispersion.

80 °.

Vertical dispersion.

80 °.

Sensitivity.

91 dB / 2.83 volts / meter.

Impedance.

4 Ohms Compatible with 4, 6 or 8 Ohm amplifiers.

Crossover frequency.

400 and 2,600 Hz.

High frequency transducer.

1 "× 1.4" (2.6cm × 3.6cm) folded motion transducer with 5.25 "× 1.75" (13.3cm × 4.4cm) diaphragm.

Low Frequency Transducer.

Two 5.5 "(14cm) aluminum cones with cast polymer basket. Asymmetric non-resonant chamber format. Rigid structure dust cap to reduce cone breakage modes.

Components.

Custom air core coil and steel laminated inductors low DCR. Polyester film capacitors in series and low frequency electrolytic capacitors in parallel. General system current / thermal protection.

Inputs.

5-way tool-free custom binding posts.

Weight.

18 lbs. (8.2 kg) ).

Dimensions.

6.9 "x 16.5" x 10.5 ".

(17.5cm x 42cm x 26.6cm).