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About the Motion 20
The MartinLogan Motion 20 is a compact floorstanding loudspeaker featuring a 1 × 1.4-inch Folded Motion transducer with a 5.25 × 1.75-inch diaphragm and two 5.5-inch aluminum-cone woofers in a non-resonant asymmetrical cabinet format. Its rear-firing bass port, Vojtko crossover network, removable floor spikes, and five-way binding posts support flexible installation and bi-wiring or bi-amping. MartinLogan specifies a frequency response of 46 Hz–25 kHz (±3 dB), 90 dB sensitivity, 4-ohm impedance, and recommended amplifier power of 20–200 watts. The cabinet measures approximately 6.8 × 36.6 × 11.7 inches (W × H × D).
Specifications
Key Specifications
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