Orders placed after 4PM on weekdays will not ship until the next business day. Orders placed after 11am Fridays will not ship until the following Monday.
Faster shipping methods may be available; just upgrade during checkout.
*Some exclusions apply.
Enter new zip code to refresh estimated delivery time.
Achieve a unique audio experience with the black MartinLogan ElectroMotion ESL X Floorstanding Speaker. It uses an electrostatic transducer to produce high-range and mid-range audio frequencies, and has two 8" woofers with a down-facing bass reflex port for enhanced bass. This speaker will handle 20 to 400W of power and is therefore compatible with most home theater and stereo systems.
CLS XStat Transducer
CLS (Curvilinear Line Source) technology enables construction of electrostatic panels as cylindrical sections. Their gentle horizontal curvature helps solve the problem of obtaining good high-frequency dispersion from a large radiating surface without compromising overall sound quality or reliability.
Dipolar Radiation Pattern
A key attribute of the ElectroMotion ESL X is its naturally dipolar radiation pattern. The EM-ESL X 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 electrostatic panel cause output at the sides to be 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 clarity for which electrostats are known, the energy reflected off the wall behind the speaker opens up and deepens the sound.
Enhanced Bass Integration
To blend audio output from the high- and mid-frequency electrostatic panel to the low-frequency dual woofer system, the ElectroMotion ESL X features a Vojtko topology filter utilizing an air-core coil and low-DCR steel laminate inductors, polyester film capacitors in series, and low-DF electrolytic capacitors in parallel.
The EM-ESL X features dual 8" doped-fiber cone woofers designed to optimize cone suspension and the magnetic flux field to produce big bass output with low distortion. Rigid and lightweight, the woofer's diaphragm eliminates cone flexure and maximizes response time.
Bi-Wire Binding Posts and Adjustable Footing
5-way bi-wire binding posts allow for secure wire connections. The EM-ESL X is supplied with 3/8-16 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 more detailed bass performance. Each spike is covered by removable rubber end caps if you prefer not to use spikes.
In the Box
MartinLogan ElectroMotion ESL X Floorstanding Speaker (Single, Black)
Limited 90-Day Warranty, Extendable to 5 Years with Registration
Table of Contents
Electrostatic high- and mid-range transducer Bass reflex woofers with down-firing port
1x 8.6 x 40" (21.8 x 101.6 cm) XStat CLS electrostatic transducer with 344 in² (2215 cm²) radiating area 2x 8" (20.3 cm) high-excursion, high-rigidity paper cones with extended throw drive assembly, non-resonance asymmetrical chamber format
30° x 40" (101.6 cm) line source
91 dB/2.83 V/m
Recommended Amplifier Power
20 to 400 W
6 Ohms (1.6 Ohms @ 20 kHz) Compatible with 4, 6, or 8 Ohm rated amplifiers
41 Hz to 22 kHz ±3 dB
5-way bi-wire capable binding posts
Audio transformer, air core coils, steel laminate inductors, polyester capacitors, and low-DF electrolytic capacitors