MartinLogan 20 specifications Motion Series, Expansive Sound & Sophisticated Aesthetics

Motion 20

S P E C I F I C A T I O N S

Frequency Response

46–25,000 Hz ± 3 dB

Dispersion

80° x 80°

High Frequency Driver

1” x 1.4” (2.6cm x 3.6cm) Folded Motion Transducer with 5.25” x 1.75” (13.3cm x 4.4cm) diaphragm.

Low Frequency Transducer

Two 5-1/2” (14cm) aluminum cone woofers in a non-resonant asymmetrical chamber format. Cast polymer basket. Rigid structured dust caps reduce cone break-up

Sensitivity

90 dB @ 2.83 volts/meter

Impedance

4 Ohms. Compatible with 4, 6, or 8 Ohm rated amplifiers.

Recommended Amplifier Power

20 – 200 watts

Crossover Frequency

500 & 2,600 Hz

Cabinet

Ported

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

37 lbs. (16.8 kg)

Dimensions

36.6” x 6.8” x 11.7” (92.9cm x 17.3cm x 29.7cm)

Specifications are subject to change without notice.

The Motion 20 speaker features our advanced resolution Folded Motion™ tweeter and dual 5-1/2” aluminum cone bass woofers. Each cabinet is wrapped in a luscious high-gloss paint.

Expansive Sound & Sophisticated Aesthetics 

The Motion 20 is a breathtaking visual statement regardless of its compact dimensions. Dual 5-1/2” aluminum-cone woofers are paired with a rear-firing bass port for extra punch in the low frequencies. With the addition of our exquisite Folded Motion™ tweeter it’s a design that delivers solid low-frequency reinforcement, superb sound dispersion and precise, highly dynamic high frequencies. Sitting on top included MiniETC™ Spikes, this combination creates audible acoustic alchemy across the frequency spectrum and offers an extremely expansive soundstage, richly detailed highs, and an open & revealing midrange.

Motion Series