Motion 20

About the Motion 20

The Martin Logan Motion 20 is a three-way, bass-reflex floor-standing speaker designed for high performance in a compact form. It features a 1" x 1.4" Folded Motion tweeter with a 5.25" x 1.75" diaphragm for high output and low distortion, paired with two 5.5" aluminum cone woofers in a non-resonant asymmetrical chamber format with rigid structured dust caps to reduce cone break-up. The speaker has a rear-firing bass port to enhance low-frequency response and uses a high-performance Vojtko crossover network with custom air core coils and quality capacitors. It offers a frequency response of 46 Hz to 25 kHz (±3 dB), sensitivity of 90 dB, and an impedance of 4 ohms, compatible with amplifiers rated 20-200 watts. The cabinet is finished in high-gloss piano lacquer (Gloss Black) and includes removable floor spikes and five-way binding post terminals for bi-amp/bi-wire capability. Dimensions are approximately 36.6" H x 6.8" W x 11.7" D, weighing 37 lbs. The Motion 20 is praised for its detailed sound, precise imaging, and surprisingly powerful bass for its size, making it a versatile option in the - per pair range. It comes with a 5-year parts and labor warranty with registration.