Martin Logan Motion 15i

Bookshelf speaker featuring a Folded Motion® tweeter and 5.25-inch aluminum cone woofer with a rear-firing bass port. Available in three stylish finishes: gloss black, matte white, and red walnut.   Specifications Specifications are subject to change without notice 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 5 Ohms Compatible with 4, 6, or 8 Ohm rated amplifiers. Crossover Frequency 2,700 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 5.25” (13.3cm) aluminum cone with cast basket. Non-resonant asymmetrical chamber format. Rigid structured dust cap to reduce cone break-up modes. Components Custom air core coil and low DCR steel laminate inductors. Polypropylene film capacitors in series