MartinLogan Motion 15i Bookshelf Speaker (Each) - Red Walnut

MartinLogan's high-performance Motion 15i bookshelf speaker features a Folded Motion tweeter, a 5.25" aluminum cone woofer with a rear-firing bass port, and a proprietary Vojtko crossover network to deliver refined sound with stunning dynamic range and jaw-dropping clarity. Motion 15i 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 and stiffened motor suspension. 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" 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 aluminum 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. Premium Motion Series speakers feature proprietary Vojtko crossover networks using polypropylene and low-DF electrolytic capacitors, custom-wound inductors, and thermal and current protection. Frequency Response: 60–25,000 Hz ±3dB, Recommended Amplifier Power: 20-200 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: 2,700 Hz, Dimensions: 11.4" x 6.8" x 9.5", Weight: 12 lbs.