Martin Logan ElectroMotion ESL - EXCELLENT CONDITION! LOCAL SALE ONLY

In excellent condition! Includes cloth covers.

Original box and packing are not included.

LOCAL SALE ONLY! Manual can be found on ML's website.

Highly reviewed from all over the world!

These feature a full-sized 34-inch tall curvilinear XStat™ electrostatic transducer and a superbly integrated high-performance woofer, the EM-ESL performs more like a mini-flagship than an entry level audiophile speaker. The ESL is capable of being effortlessly powered by both receivers and high-end amplifiers alike. lectroMotion ESL's XStat electrostatic MicroPerf panel is housed within a radical aluminum and composite AirFrame™ similar to those found on MartinLogan's flagship products. AirFrame technology rigidifies the electrostatic panel without obstructing playable surface area or interfering with ambience enriching dipole sound radiation. At the same time, an AirFrame provides electrical and acoustical isolation, minimizing intermodulated distortion caused by vibration and resonance while enhancing imaging, low-level sonic detail, accuracy, and efficiency. MicroPerf design optimizes the individual holes of The EM-ESL's electrostatic panel. MicroPerf design substantially increases diaphragm radiating area, compared to early generations—without compromising structural integrity. The resulting increase in output capability and efficiency allows The EM-ESL's panel to enjoy a substantial leap in bandwidth and dynamics without growing larger. For example, The EM-ESL's XStat electrostatic panel features 129 square inches of sound radiating surface on both the front and back and a sensitivity of 91dB into 6 Ohms.

A unique XStat™ transducer was developed for the ElectroMotion ESL to reduce the gauge thickness of the electrostatic panel's steel stators. The reduced gauge does not alter the performance characteristics of the panel. However, as a natural byproduct of tighter build tolerances, it does increase the visual transparency of the panel. The EM-ESL's new XStat panel is so visually transparent it nearly vanishes when you're sitting and listening.

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.

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.

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 minimizes response time to achieve remarkably low-distortion approaching that of MartinLogan's award-winning electrostatic panel design.

Frequency Response 42–22,000 Hz ± 3dB

Sensitivity 91 dB/2.83 volts/meter

Impedance 6 Ohms, 1.6 @ 20 kHz. Compatible with 4, 6, or 8 Ohm rated amplifiers.

Crossover Frequency 500 Hz

High/Mid Frequency Driver 34” x 8.6” (86 x 22 cm) CLS XStat electrostatic (292 in2/1,886 cm2)

Low Frequency Driver 8” (20.3 cm) paper cone

Recommended Amplifier Power 20–300 watts per channel

Weight 35.5 lbs.  each

Dimensions (HxWxD) 52.1” x 9” x 16.3

These are on display and ready to be auditioned in our showroom. If you are in the Chicagoland area, please come by and take a look and listen.

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Local pickup customers and Illinois residents are subject to Chicago sales tax (10.25%).

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