Martin Logan Motion 40i Floorstanding Speakers – Gloss Black / Ex-demonstration

Here we have a pair of ex-demonstration floorstanding loudspeakers from US brand Martin Logan. They are in very good condition, and come supplied in original factory packaging along with manual, grilles, spikes plus full manufacturer’s warranty
Martin Logan Say….
The secret to Motion 40i’s outstanding performance lies in its Folded Motion® tweeter, 5.5-inch aluminium cone midrange driver, dual 6.5-inch aluminium cone woofers with a rear-firing bass port, and a proprietary Vojtko crossover network. This double woofer design produces vibrant, accurate deep bass performance. Motion 40i delivers the classic broad soundstage of the Motion Series from a newly designed enclosure enhanced by the slightest of modifications, including the drive-stabilizing dust cap design, stiffened motor suspension, and low-mounted woofers to reduce an acoustically harmful phenomenon known as floor bounce. The speaker’s enclosure sports a reinforced baffle and a fabric grille.
What makes the Motion Series sound so amazing? 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-honoured cabinet construction techniques. The result is an emotionally engaging sound that rivals (and most times trounces) traditional loudspeakers of similar size and price. Our ‘no compromise’ philosophy gives Motion Series a unique sound you won’t find anywhere else.
The success of the Motion Series is directly attributed to its close relation to MartinLogan’s legendary ultra-high-end electrostatic loudspeakers. The desire to transmute that level of performance into a more traditional loudspeaker 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. It’s a miracle of audio engineering that’s able to deliver much of the high-frequency detail and speed of a large, dynamic electrostatic panel in a small space.
Custom built, low-distortion drivers pair high-power magnet structures with aluminium cone diaphragms to deliver massive excursion and sound output, preserve minute bass details, and maximize power handling capability, all without a hint of distortion. A unique concave dust cap design reinforces the strength and rigidity of the cone while reducing break up modes.
The use of aluminium for cones maximizes rigidity and strength of the drivers without adding excessive weight. This, along with the exceptional damping properties of aluminium, ensures the smooth, non-resonant response necessary for seamless blending with high-resolution Folded Motion tweeters. An added benefit of aluminium 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).
Discreetly hidden behind fabric wrapped magnetic grilles, Folded Motion and aluminium cone drivers are held securely in place beneath 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 MDF with 31mm thick front baffles.
Specifications:
Frequency Response: 40 – 25,000 Hz ±3dB
Recommended Amplifier Power: 20 – 300 watts per channel
Horizontal Dispersion: 80°
Vertical Dispersion: 80°
Sensitivity: 92 dB/2.83 volts/meter
Impedance: 4 Ohms Compatible with 4, 6, or 8 Ohm rated amplifiers.
Crossover Frequency: 500 & 2,600 Hz
High Frequency Transducer: 26 mm × 36 mm Folded Motion Transducer with 133 mm × 44 mm diaphragm
Mid Frequency Transducer: 140 mm aluminium cone in a non-resonant asymmetrical chamber format. Cast polymer basket. Rigid structured dust cap reduces cone break-up.
Low Frequency Transducer: Two 165 mm aluminium cone woofers in a non-resonant asymmetrical chamber format. Cast polymer basket. Rigid structured dust caps reduce cone break-up.
Components: Precision Vojtko™ with custom air core coil and low DCR steel laminate inductors. Polyester film capacitors in series and low DF electrolytic capacitors in parallel
Inputs: Custom 5-way bi-wire tool-less binding posts
Weight: 22.2 kg
Dimensions: 1079 (H) x 192 (W) x 326 (D) mm