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MartinLogan Motion SLM Refurbished

Ultra-Slim on-wall speaker

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$379.00 / ea

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The slender Motion SLM speakers are the newest addition to MartinLogan's award-winning Motion® Series. Motion SLM features an advanced resolution Folded Motion™ tweeter, two 4-inch high-excursion fiber cone woofers and two passive bass radiators for maximum controlled low-end bass extension - all in an ultra-slim profile designed expressly for super-thin TVs.

Inspired by MartinLogan's ultra-high-end electrostatic loudspeakers, the Motion Series was created to provide stunning sound for your ultimate-performance home theater or stereo. MartinLogan's dedicated in-house engineers carefully crafted the Motion Series to create an extremely affordable and compact product line that seamlessly blends our exquisite Folded Motion transducers with powerful, compact bass technology. The result is a smooth, refined sound with stunning dynamic range and jaw-dropping clarity.

The Audible Truth About Thin TVs

TV manufacturers are pushing the physical limits of electronics, making TVs that are thinner than ever at less than 2-inches from the wall. While they look great, creating a thinner television means making compromises to the built-in speakers; tiny drivers, cheaper parts, reduced cabinet volume and placement behind the TV create unnatural, lifeless sound. Worse yet, these speakers are usually underpowered, and easily distort when you turn up the volume. Motion SLM provides a clean, easy to install solution for elevating the aural experience that has been sacrificed with ultra-thin TV technology.

Slender Profile & Stunning Performance

The secret to the Motion SLM's outstanding performance is the innovative dual 4-inch, ultra-slim fiber cone woofers and dual 4-inch high-velocity passive bass radiators, paired with a Folded Motion tweeter to create stunning acoustical alchemy typically found in much larger speaker systems. Hidden discretely underneath the grille, the drivers are held securely in place by a solid, black-anodized brushed aluminum baffle. The high-gloss black SLM cabinet is only 1.45-inches thin, for a total wall protrusion of 1.83-inches with magnetic grille and included wall mount bracket.

Maximum Versatility On-Wall or On-Shelf

With keyhole slots on the speaker's back panel that attach easily to the included wall bracket, you'll have the SLM wall-mounted and playing in no time. While we created the Motion SLM to wall mount next to ultra-flat panel TVs, that's not their only application. Included with each speaker is a curved black-glass base to allow them to sit on a shelf or equipment cabinet.

The Perfect LCR System

The Folded Motion tweeter has an 80° x 80° dispersion pattern, which allows the Motion SLM to sound exactly the same in a horizontal orvertical orientation, making them perfect for Left-Center-Right (LCR) system applications. The logo on the grille is magnetic and can move and rotate to the proper atheistically pleasing location in any orientation.

Each speaker includes "kick-stand" brackets that attach to the back of the cabinet, allowing them to free-stand for center channel applications. The stands are easily adjustable with the provided screw feet.


System 2-way passive radiator
Power Handling (Nominal) 20-140 Watts
Frequency Response +/-3dB 110-25,000 Hz
Sensitivity (1W/m) 94 dB SPL
Impedance 4 Ohms
Tweeter 1 x 1.4" Folded Motion Transducer
Midrange Driver -
Woofer (2) 4" paper cone woofers, (2) 4" paper cone passive radiators
Crossover Type Passive
Crossover Frequencies 2600 Hz
Wall-mount type Keyhole, bracket
Additional mounting options Desktop
Width (inches) 6.4"
Height (inches) 25.3"
Depth (inches) 1.8"
Weight (lbs) 6.5 lbs
Color Black
Unit of measurement ea


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