Martin Logan ElectroMotion ESL Black Satin Floor Standing Stereo Speaker
The World's Most Superb Thin Film Transducer Technologies
The all new ElectroMotion™ Series features both electrostatic and compact Folded
Motion™ thin film transducer technologies. This bold loudspeaker series establishes
a new benchmark for price verses performance. Pushing thin film transducer technology
to its limit, the ElectroMotion Series floorstanding loudspeaker, the ElectroMotion
ESL, features the most affordable full-size XStat™ electrostatic transducer
ever designed. Voice-matched center and surround speakers will feature the next
evolution of Folded Motion technology—MartinLogan's new larger, lower distortion
Folded Motion™ XT tweeter.
Designed for both 2-channel music enthusiasts and those seeking the worlds
most articulate and dynamic multi-channel home theater systems, ElectroMotion
Series speakers are voice and timbre matched with one another as well as the
rest of the MartinLogan line. With audiophile-grade floorstanding electrostatic
loudspeakers starting at $1,995 per pair (US), this new series represents the
most compelling 'affordable' audiophile-grade speakers ever brought to market.
XStat™ Electrostatic Panel The front stage for the ElectroMotion Series
uses a full-sized 34-inch tall curvilinear XStat electrostatic transducer housed
within a radical aluminum and composite Airframe.
Folded Motion™ XT Our new larger, low distortion Folded Motion XT tweeter
boasts a radiating surface 40% larger than those found in the award-winning
Motion® Series products.
CLS™ XStat™ Transducer One of MartinLogan's original breakthroughs,
CLS™ (Curvilinear Line Source) technology, has been an essential ingredient
of every electrostatic loudspeaker we've produced—and the ElectroMotion ESL
is no exception. Proprietary manufacturing methods enable construction of electrostatic
panels as cylindrical sections. Their gentle horizontal curvature solves the
problem of obtaining good high-frequency dispersion from a large radiating surface
without compromising overall sound quality or reliability.
Controlled Dispersion Sound Radiation Another key attribute of the ElectroMotion
ESL is its naturally dipolar radiation pattern. A true dipole, The EM-ESL radiates
sound with equal intensity from the front and back of its diaphragm, but the
outputs are in opposite phase. As a result, sound waves rippling out toward
the sides meet at the speaker's edge and cancel. That and the relatively large
size of the ElectroMotion ESL's electrostatic panel cause output at the sides
to be very low relative to that of a conventional loudspeaker, which in turn
minimizes side-wall reflections that tend to muddle sonic detail and stereo
imaging. While the reduction in output to the sides contributes to the astonishing
clarity for which electrostats are revered, the energy reflected off the wall
behind the speaker opens up and deepens the sound.
Superb Bass Integration To seamlessly blend audio output from the high-
and mid-frequency electrostatic panel to the low-frequency woofer the ElectroMotion
ESL features a proprietary Vojtko™ topology filter utilizing custom air core
coil and low DCR steel laminate inductors, polyester film capacitors in series,
and low DF electrolytic capacitors in parallel.
A precise 8-inch high-excursion, perfectly balanced, audiophile grade, doped
fiber cone woofer was custom designed exclusively for The EM-ESL by MartinLogan's
in-house engineering team. This woofer precisely optimizes cone suspension and
magnetic flux field to produce high levels of bass output and simultaneous precise
midrange. The custom woofer's rigid light-weight diaphragm eliminates cone flexure
and maximizes response time to achieve remarkably low-distortion approaching
that of MartinLogan's award-winning electrostatic panel design.
Easy Connections, Solid Adjustable Footing Convenient push-style speaker
terminals and curved inserts help guide speaker wire effortlessly into place.
The rubber end caps on the terminal are also removable for the use of banana
plugs instead of bare wire. The EM-ESL is supplied with sturdy, 1/4-20 ETC™
spikes, which can be used to fine tune vertical wave launch, enhance stability
on thick carpets, and create tighter coupling between speaker and floor to provide
a tighter and detailed bass performance. Each spike is conveniently covered
by removable rubber end caps if you prefer not to use spikes.
- CLS™ XStat electrostatic transducer
- Ultra rigid AirFrame
- 8-inch high-excursion woofer
- Precision built advanced topology Vojtko™ crossover
- Custom ETC™ spikes
- Low-voltage power supply
- Frequency Response 42–22,000 Hz ± 3dB
- Dispersion: 30° x 34" (71cm) line source
- Sensitivity 91 dB/2.83 volts/meter
- Impedance 6 Ohms, 1.6 @ 20 kHz. Compatible with 4, 6, or 8 Ohm rated
- Crossover Frequency 500 Hz
- High/Mid Frequency Driver 34” x 8.6” (71.1 x 21.8 cm) CLS XStat electrostatic
(241 in2/1,550 cm2)
- Low Frequency Driver 8” (20.3 cm) paper cone
- Recommended Amplifier Power 20–300 watts per channel
- Unit: 35.5 lb
- Shipping: 45 lb
- Depth: 16.3"
- Height: 52.1"
- Width: 9"
- Manufacturer Warranty (authorized online retailer): 5 Year Limited Warranty
Features and specifications are subject to change without notice.