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MartinLogan Motion® 8

Center channel/multi-purpose home theater speaker

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  • MartinLogan Motion® 8

    Front

  • MartinLogan Motion® 8

    Back

  • MartinLogan Motion® 8

    Facing right

  • MartinLogan Motion® 8

    Facing right

  • MartinLogan Motion® 8

    Installed as a center channel speaker

  • MartinLogan Motion® 8

    Rear angled view

  • MartinLogan Motion® 8

    Top angled view

 

Our take on the MartinLogan Motion® 8

by James Ralston
MartinLogan

Your home theater's most important speaker

The center channel speaker is the workhorse in a home theater system. It has to reproduce clear dialogue and special effects that keep your eyes and ears glued to the movie action. A high-quality center speaker is a great investment for any surround sound setup. Try to choose one that's as closely matched as possible to your front right and left speakers, so that as sound moves across the front stage, it stays seamlessly realistic.

Dynamic home theater performance from MartinLogan

MartinLogan Motion 2 tweeter detail

The Motion 8 uses MartinLogan's acclaimed Folded Motion tweeter for smooth, effortless highs.

MartinLogan's elegant Motion 8 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.

Folded Motion™ tweeter for detailed sound

The distinctive sound of the Motion series starts with MartinLogan's Folded Motion tweeter. Rather than a dome or cone driver, this tweeter uses a pleated diaphragm that works like an accordion by "squeezing" air to create sound. It requires about 90% less excursion than a typical 1" dome tweeter, resulting in quicker response time and much lower distortion. The tweeter's controlled sound dispersion creates a focused soundstage with a real sense of presence. Music and movie soundtracks sound amazingly detailed, but smooth and effortless, without a trace of harshness.

A stylish, curved cabinet

MartinLogan Motion 8 in living room environment

The Motion 8, shown here as a wall-mounted center channel speaker

The tweeter is flanked by two 4" doped paper cone woofers that supply accurate mids and bass. All three drivers are mounted in an eye-catching curved cabinet that's finished in classic high-gloss piano black. The Motion 8's subtle, modern lines complement just about any décor.

Be sure you get enough bass

For even better bass — and especially for high-impact home theater — we recommend a powered subwoofer, like one of MartinLogan's excellent models.

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 (compatible with 4-, 6-, or 8-ohm rated amplifiers)
  • 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)
  • Our 60-day money-back guarantee
 

Hands-on research from the Crutchfield Labs (what are the Labs?)

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

Download owner's manual

  • LCR loudspeaker
  • 2 Wall-bracket
  • 2 Shoulder bolts
  • 4 Mounting screws
  • 4 Wall anchors
  • 4 Rubber bumpers
  • User's Manual (En/Fr)
  • Installation template
  • Product Registration Card

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team — they open the box, verify contents, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

Features

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.

Precision Vojtko Crossover: To seamlessly blend the audio output from the Folded Motion tweeter and two 3.5" woofers, the Motion 8 loudspeaker features a precision Vojtko crossover (3000Hz) utilizing custom air core coil and low DCR steel laminate inductors, polyester film capacitors in series, and low DF electrolytic capacitors in parallel.

Curved High-Gloss Black Sealed Cabinet: Complementing the Motion 8 loudspeaker's sonic accuracy is its elegant, yet understated styling. A high-gloss piano black finish, along with MartinLogan's signature perforated grille, give the Motion 8 speaker an elegant and timeless look that will blend into almost any decor. The speaker cabinet also features rounded edges and gently tapered top/sides. The cabinet is an acoustic suspension design (sealed) for tighter, accurate midbass.

Spring-Post Connectors: The MartinLogan Motion 8 speaker features two spring-post connectors to attach your speaker wire. The spring-posts will accept bare wire (16- to 10-gauge), pin-connectors, and banana plugs (single only). The rubber caps on the spring-post connectors must be removed to use banana plugs.

Applications: The MartinLogan Motion 8 LCR loudspeaker can be used as a center-channel speaker or paired with another Motion 8 speaker for a stereo or home theater front/rear application.

Mounting Options: The MartinLogan Motion 8 speaker can simply be placed horizontally on a flat-surface; such as a table-top, stand, shelf, or cabinet. Four rubber self-adhesive feet are included to prevent slippage and reduce vibration. Because of its curved cabinet, this speaker cannot be placed vertically on a flat-surface. The included wall-mount brackets and hardware let you mount this LCR speaker on the wall, horizontally or vertically.

Note: The MartinLogan logo badge on the Motion 8's grille can be re-position based on how you have the speaker mounted.

Break-in Period: Allow approximately 72 hours of break-in at 90 dB (moderate listening levels) before any critical listening.

 
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MartinLogan Motion® 8 Reviews

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5 out of 5

motion 8

Written By mebe, Everett, WA on Sunday, September 29, 2013
Crutchfield Customer Review (What's this?)
 
This speaker "woke" up my listening, I had not realized how muddy my Polk speakers were. Dialogue Was clear and crisp, midrange was excellent. Now I am replacing all my speakers, albeit slowly, with the ML motion series. They are made in Kansas, support is excellent and product is superb.
Pros:
Great sound and looks
Cons:
Pricey?
Was this review helpful?    Yes | No
 
4 out of 5

MartinLogan Motion® 8

Written By Anonymous, Portland,or on Thursday, September 05, 2013
Crutchfield Customer Review (What's this?)
 
Nice center, a bit small as a match to the motion 40's
Was this review helpful?    Yes | No
 

Add accessories for the MartinLogan Motion® 8

You'll need speaker wire to connect your speakers to your amp or receiver. No wire is included with this speaker. See all categories & accessories

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AudioQuest G2 Speaker Cable 16-gauge cable, connectors optional (30 feet, Gray)
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Monster XPHP™ MKII Speaker cable with clear jacket (100 feet)
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Monster XP® Speaker cable with clear jacket, connectors optional (30 feet)
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Monster XP® Navajo White MkII Speaker cable (50 feet)
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For a more in-depth review and enhanced detailed information on the MartinLogan Motion® 8, please visit the Crutchfield website product page (/ISEO-rccbcspd/p_839MO8B/MartinLogan-Motion-8.html ).

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Compare with other MartinLogan models

  • MartinLogan Motion® 8
  • Better bass and higher power handling
  • 4.5 out of 5: In Stock
  • The MartinLogan Motion® 8 features:
    • two larger 4" doped paper cone woofers
    • frequency response of 70-25,000Hz
    • power handling up to 180 watts continuous
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    $399.99
  • MartinLogan Motion® 6
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  • 5 out of 5: In Stock
    • The MartinLogan Motion® 6 offers:
      • frequency response 120-25,000 Hz (±3dB)
      • 1" x 1.4" Folded Motion tweeter and two 3-1/2" poly cone woofers
      • versatile home theater speaker can be positioned horizontally or vertically; includes brackets for wall mounting
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  • MartinLogan Motion® 8
  • Gloss Black Center - Speaker
  • 4.5 out of 5: In Stock
    • The MartinLogan Motion® 8 offers:
      • frequency response 70-25,000 Hz (±3dB)
      • 1" x 1.4" Folded Motion tweeter and two 4" doped paper cone woofers
      • versatile home theater speaker can be positioned horizontally or vertically; includes brackets for wall mounting
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