MartinLogan Motion 8i Center Channel Speaker, High Gloss Black, (Each)


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  • Frequency Response: 70-23,000 Hz
  • Crossover Frequency: 3000 Hz
  • Custom air core coil and low DCR steel laminate inductors
  • 20-180 watts per channel
  • 4 Ohms. Compatible with 4, 6 or 8 ohm rated amplifiers.

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SKU: Motion 8i Categories: , , , , Product Condition: New Brand:

Product Description

MartinLogan’s elegant Motion 8i HGB was designed for maximum performance and flexibility. This versatile speaker comes with brackets for easy wall-mounting. And because you can orient it horizontally or vertically, it makes a great center channel companion to other wall-mountable members of the Motion series, such as the Motion 2 or Motion 4. You can also use a trio of these speakers across your front left, center, and right channels for a seamless front soundstage.

Product Highlights:

  • Versatile home theater speaker can be positioned horizontally or vertically
  • Includes brackets for wall mounting
  • Elegantly curved cabinet with high-gloss piano black finish
  • 1″ x 1.4″ Folded Motion tweeter
  • Two 4″ doped paper cone woofers with rigid dust caps
  • Frequency response 70-25,000 Hz (±3dB)
  • Handles up to 180 watts
  • Sensitivity: 89 dB
  • Impedance: 4 ohms
  • Acoustic suspension (sealed) cabinet
  • Perforated metal grille
  • Custom-designed push-style binding posts accept pins, banana connectors, or bare wire
  • 22-1/4″W x 5-5/8″H x 5-1/4″D
  • Weight: 8.5 lbs.
  • Warranty: 5 years (with product registration)


2-Way LCR Speaker: The MartinLogan Motion 8 LCR loudspeaker employs a 2-way speaker design and features MartinLogan’s advanced resolution Folded Motion tweeter and two 4″ paper cone woofers. Pairing these three drivers together creates a dynamic full-range sound with an expansive soundstage.

  • Folded Motion Tweeter: MartinLogan’s Folded Motion tweeter helps give the Motion 8 LCR loudspeaker its natural, realistic high frequency sound. Lightning fast transient response, combined with a large surface area (8x that of a typical 1″ dome tweeter) creates clear, dynamic, and precise sound. The 1″ x 1.4″ Folded Motion tweeter works by moving air (which creates sound) perpendicular to the folded ridges of the diaphragm, similar to how an accordion works. This extremely low mass diaphragm “squeezes” air and requires almost 90% less excursion than the typical 1″ 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 (80°x80°) to create a realistic and carefully etched sound stage.
  • Dual Paper Cone Woofers: The Folded Motion tweeter is flanked by two 4″ paper cone woofers with a stamped steel basket housed in a non-resonant asymmetrical chamber. The paper cone woofers use a rigid structured dust cap and butyl rubber surround to reduce cone break-up and distortion. These two 4″ paper cone woofers provide rich, detailed midrange/midbass.

Features and Specs

Enclosure Acoustic Suspension
Tweeter Folded Motion Transducer
Midrange size (inches) N/A
Woofer size (inches) 4
Connector Type Spring post
Power Range 20-180
Sensitivity 89 dB
Impedance (Ohms) 4
Frequency Response 70-25k Hz
Height (inches) 5-5/8
Width (inches) 22-1/4
Depth (inches) 5-1/4
Weight 8.5 lbs
Parts Warranty 5 Yrs w/ Registration
Labor Warranty 5 Yrs w/ Registration