Brochure

MARTINLOGAN’S
ELECTROSTATIC LEGACY.
The performance pedigree of the Motion Series is
directly attributed to its close relation to MartinLogan’s
legendary ultra-high-end electrostatic loudspeakers.
The desire to transmute that level of performance into
a more traditional and affordable speaker drove the
design imperatives that created the Motion Series.
Key to its success is the unique Folded Motion and Folded
Motion XT tweeter technology. This thin-film transducer design
packs the accuracy and delicacy of an electrostatic panel
into a small space. Crimping the dramatically light-weight film
into an accordion-like structure increases the surface area,
giving Folded Motion tweeters 8–10 times more surface area
than typical tweeters. This ideal combination of light and
large produces higher levels of accuracy, more extended
bandwidth, and higher output capability, all with a faster,
more efficient transient response, and virtually zero distortion.
In these characteristics, the Folded Motion tweeter design
can mimic the performance of an electrostatic panel in the
confines of a more traditional loudspeaker enclosure.
By matching the Folded Motion tweeter to high-perfor-
mance drivers and woofer systems, with hand-built and
custom-tuned crossovers, the Motion Series extends
MartinLogan’s reputation beyond the realm of the world’s
finest electrostatic loudspeakers. Motion speakers continue
that groundbreaking standard, delivering a richly detailed
musical and cinematic experience at an unrivaled price.
FOLDED MOTION TWEETERS AT WORK.
An array of neodymium magnets hold constant charges.
A circuit trace on the folded polyamide diaphragm, driven
by the amplifier, is given a charge that continuously
reverses in reaction to the audio signal. Opposite charges
attract and like charges repel, causing the diaphragm to
“squeeze” air like an accordion and produce sound as
the charges of the magnets and diaphragm interact.