MartinLogan Motion 20 User Manual

Motion 20

SPECIFICATIONS

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.

Motion Series

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.