3-Way Tower Loudspeaker: The MartinLogan Motion 40 tower
loudspeaker employs a 3-way speaker design and features MartinLogan's advanced
resolution Folded Motion Tweeter, a 5.5" aluminum cone
midrange driver, and two 6.5" aluminum cone bass woofers. Pairing these
trio of woofers together with the Folded Motion Tweeter creates a dynamic
full-range sound with an expansive soundstage.
- Folded Motion Tweeter: MartinLogan's Folded Motion Tweeter
helps give the Motion 40 tower 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
to create a realistic and carefully etched sound stage.
- 5.5" Midrange Driver: The MartinLogan Motion 40 loudspeaker features a
5.5" aluminum cone midrange driver housed in a non-resonant asymmetrical
chamber. The aluminum cone driver uses a rigid structured dust cap to reduce
cone break-up and distortion. This 5.5" midrange driver promotes an even more
open, revealing, and authentic sound in the critical midrange/midbass.
- Two Aluminum 6.5" Woofers w/ Rear-Firing Bass Port: The MartinLogan
Motion 40 also features dual 6.5" aluminum cone bass woofers housed in a
non-resonant asymmetrical chamber with a rear-firing port. The aluminum cone
woofers use a rigid structured dust cap to reduce cone break-up and distortion.
The two 6.5" woofers paired with the rear-firing bass port create increased cone
area delivering higher output and audibly richer, deeper bass performance.
Precision Vojtko Crossovers: To seamlessly blend the audio
output from the Folded Motion Tweeter, 5.5" midrange driver, and dual 6.5" bass
woofers, the Motion 40 tower speaker features two precision Vojtko crossovers
(500/2,600Hz) utilizing custom air core coil and low DCR steel laminate
inductors, polyester film capacitors in series, and low DF electrolytic
capacitors in parallel.
Bi-Wirable Binding Post: The MartinLogan Motion 40 features
bi-wirable binding posts and provide the ultimate level of flexibility for
connection and setup. MartinLogan's proprietary tool-less binding posts simplify
cable connection and management. Two sets are supplied; one connected to the
tweeter and midrange, while the other is connected to the dual woofers. You can
choose to bi-wire/bi-amp the Motion 40 loudspeaker, or use jumper clips between
the binding post sets for a single wire-connection. The binding posts will
accept bare wire (16- to 8-gauge), pin-connectors, spade-connectors, and banana
plugs (single only).
High-Gloss Cabinet: Complementing the Motion 40
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 40 speaker an elegant and timeless
look that will blend into almost any decor.
Interchangeable Feet: The MartinLogan Motion 40 tower
loudspeaker includes four pre-installed rubber feet for tile and hardwood
floors. You can replace the pre-installed rubber feet with four metal spiked
feet for carpeted flooring. Both the rubber and spiked feet are threaded so they
can be adjusted to non-level floors. The spiked feed add approximately 0.875" to
the height of the speaker.
Placement: Although the speakers are designed to deliver a superb
sonic performance when placed close to a wall, you may notice improved imaging
and detail if you are able to place the speakers (measured from the tweeter and
woofers) 2' to 3' from the front wall and 2' or more from the side walls. To
achieve optimum stereo imaging it is recommend that you aim the speakers toward
your primary listening position.
Break-in Period: Allow approximately 72 hours of break-in at 90 dB
(moderate listening levels) before any critical listening.
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 verify what’s in the box, 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.