MartinLogan Motion FX Surround Speaker (White)


Free Lifetime Technical Assistance
SKU: Motion FX White


Dedicated wide dispersion surround speaker with dual Folded
Motion® tweeters and Folded Motion Cascading Bass-Reflex Port for deep,
detailed bass response. Voice-matched with MartinLogan ESL speakers.

Engineering Genius

What makes the Motion Series sound so amazing? MartinLogan’s
dedicated in-house engineering team started by utilizing and refining the most
advanced, compact technologies and combining them with innovative engineering.
The result is an emotionally engaging sound that rivals (and most times
trounces) traditional loudspeakers of similar size and price.

Folded Motion® Tweeters

The signature Folded Motion tweeters utilize extremely low
mass diaphragms that “squeeze” air, and require significantly less
excursion than the typical 1-inch dome tweeter, which drastically minimizes
distortion while providing a lightning fast response time. The increased
surface area also provides a wide, yet controlled sound dispersion to create a
realistic and carefully etched sound stage.


Specifications are subject to change without notice

Frequency Response

70–25,000 Hz ±3dB

Recommended Amplifier Power

20—160 watts per channel

Horizontal Dispersion


Vertical Dispersion



91 dB/2.83 volts/meter


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

Crossover Frequency

4500 Hz

High Frequency Transducer

Two 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) paper cone with cast aluminum basket.
Non-resonant asymmetrical chamber format. Rigid structured dust cap to reduce
cone break-up modes. Folded bass reflex port.


Custom air core coil inductors. Polyester film capacitors
in series and low DF electrolytic capacitors in parallel. Overall system
thermal/current protection.


Push style with banana jacks


9.5 lbs. (4.4 kg)


11.1″ x 12″ x 6 “
(28.2cm x 30.5cm x 15.2cm)

Additional information

Weight 11.00000000 lbs
Dimensions 14.0 × 15.0 × 10.0 in


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