MartinLogan Motion® 30

Center channel speaker (Gloss Black)

  • MartinLogan Motion® 30

    Gloss Black with grille off

  • MartinLogan Motion® 30

    Angled right (Gloss Black)

  • MartinLogan Motion® 30

    Back (Gloss Black)

  • MartinLogan Motion® 30

    Gloss Black with grille

  • MartinLogan Motion® 30

    Side (Gloss Black)


Our take on the MartinLogan Motion® 30

by Steve Kindig

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.

Clear dialogue and effects from a compact center

MartinLogan's Motion 30 center channel delivers clear, accurate movie dialogue and robust sound effects for a home theater experience that's truly cinema-like. This speaker takes advantage of one of MartinLogan's most advanced technologies, the Folded Motion™ tweeter, to create detailed, dynamic center channel sound that immerses you in the on-screen action. This speaker's clear, open sound makes it a perfect center channel partner to MartinLogan's Motion 30 floor-standing speakers.

MartinLogan Motion 30 center channel speaker

MartinLogan's advanced Folded Motion tweeter produces clear, open highs.

Folded Motion tweeter for detailed sound

MartinLogan's innovative Folded Motion 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. Voices, effects, and music all come through with lifelike clarity and texture, but without a trace of harshness.

Bass that keeps pace

The Motion 30 uses dual 5-1/2" aluminum cone woofers to supply fast, clean midrange and lower-mid frequencies that blend in seamlessly with the Folded Motion tweeter. A low-turbulence rear-firing port extends bass performance, but keeps it tight and tuneful.

Angled cabinet design

This center channel speaker is sized to fit inside most standard audio-video cabinets. The speaker's angled enclosure is a nice touch for versatility. No matter where you place it, you can direct the sound toward your ears. Place it beneath your TV firing up toward your listening position, or mount it high and flip the cabinet upside down to aim sound down into the room.


  • 1" x 1.4" Folded Motion™ tweeter for exceptional musical detail with low distortion
  • two 5-1/2" aluminum-cone woofers with cast baskets
  • bass-reflex (ported) enclosure
  • wedge-shaped cabinet allows high frequencies to be directed up or down for versatile placement options
  • frequency response: 65-25,000 Hz (±3dB)
  • sensitivity: 91 dB
  • impedance: 4 ohms (compatible with 4-, 6-, or 8-ohm rated amplifiers)
  • recommended amplifier power: 20-200 watts
  • 5-way binding post speaker terminals
  • perforated steel grille attaches magnetically to cabinet
  • Gloss Black finish
  • 16-1/2"W x 6-15/16"H x 10-1/2"D
  • weight: 18 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
Bass Reflex
Folded Motion Transducer
Midrange size (inches)
Woofer size (inches)
Connector Type
Spring post
Power Range
91 dB
Impedance (Ohms)
Frequency Response
65-25k Hz
Height (inches)
Width (inches)
Depth (inches)
18 lbs
Parts Warranty
5 Yrs w/ Registration
Labor Warranty
5 Yrs w/ Registration
Product Research
What's in the box?

  • Center-channel loudspeaker
  • Magentic grille
  • 4 Rubber bumpers
  • User's Manual (En/Fr)
  • 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.


Folded Motion Tweeter: MartinLogan's Folded Motion tweeter helps give the Motion 30 center channel 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 Aluminum Cone Woofers w/ Rear-Firing Port: Two 5.5" aluminum cone woofers with a cast polymer basket housed in a non-resonant asymmetrical chamber flank the Motion 30 center channel speaker's Folded Motion tweeter. The aluminum cone woofers use a rigid structured dust cap and butyl rubber surround to reduce cone break-up and distortion. The two 5.5" woofers are paired with a rear-firing bass port to deliver higher output and audibly richer, deeper bass performance.

Precision Crossover: To seamlessly blend the audio output from the high frequency driver (tweeter) and the two midbass drivers (woofer), the Motion 30 loudspeaker features a precision crossover utilizing custom air core coil and low DCR steel laminate inductors, polyester film capacitors in series, and low DF electrolytic capacitors in parallel.

High-Gloss Cabinet: Complementing the Motion 30 loudspeaker's sonic accuracy is its elegant, yet understated styling. A high-gloss, piano black or black cherrywood finish, along with MartinLogan's signature perforated grille, give the Motion 30 speaker an elegant and timeless look that will blend into almost any decor. The speaker cabinet also features smooth, rounded edges.

Binding Posts: MartinLogan's proprietary tool-less binding posts simplify cable connection and management. The binding posts will accept bare wire (16- to 10-gauge), pin-connectors, spade-connectors, and banana plugs (single only).

Placement: The MartinLogan Motion 30 should be centered below or above your television on flat-surface; such as a table-top, stand, cabinet, or shelf. The center channel speaker comes with 4 rubber self-adhesive feet to help secure it in place, prevent slippage, and reduce vibration.

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

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Add accessories for the MartinLogan Motion® 30

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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For a more in-depth review and enhanced detailed information on the MartinLogan Motion® 30, please visit the Crutchfield website product page (/ISEO-rccbcspd/p_839MO30GB/MartinLogan-Motion-30-Gloss-Black.html ).