Martin Logan Motion AFX Dolby Atmos Height Effects Speakers – Pair


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MartinLogan Motion AFX Dolby Atmos enabled speakers are designed to create a height layer of sound above the listener that better connects viewers with the richness, detail and clarity of the on screen experience. The Motion AFX is designed to sit on top of floorstanding and bookshelf speakers in MartinLogan’s Motion series. These models include the Motion 15, 20, 35XT, 40 and 60XT. Designed to reflect sound off of the ceiling in a Dolby Atmos entertainment system, The AFX will also work with other brands of speakers with a flat top. For systems where a speaker-top mounting is not possible, other installation options are available.

SKU: ml-mafx-hgb Categories: , Tags: , Brand:


Frequency Response

90–20,000 Hz ±3dB




87 dB/2.83 volts/meter

Nominal Impedance

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

Recommended Amplifier Power

20-200 watts per channel

Crossover Frequency

2,000 Hz

Crossover Components

Custom air core and low dcr steel laminate inductors. Polyester film capacitors in series and low DF electrolytic caps in parallel.

High Frequency Transducer

0.75” (1.9cm) aluminum dome

Low Frequency Driver

5.25” (13.4cm) polypropylene cone with stamped steel basket.

Binding Posts

Custom 5-way tool-less binding posts


8lbs. (3.6kg) each

Overall Dimensions

7.7 x 6.8 x 10 (19.5cm x 17.3cm x 25.4cm)

Additional information

Weight 25 lbs


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