Martin Logan

Martin Logan ESL - ELECTROMOTION SERIES - Floorstanding Speakers

€3.330,00 €3.700,00

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The ElectroMotion ESL (EM- ESL ) represents a new direction for electrostatic loudspeaker design. Featuring a 34-inch-tall, curvilinear XStat™ transducer, the new ESL presents itself more like a mini-flagship than an entry-level audiophile speaker. Longtime MartinLogan enthusiasts will surely describe the ElectroMotion ESL as the second coming of the legendary Aerius electrostatic loudspeaker, which debuted in 1992 and went on to sell in record numbers. The new ESL, however, boasts 40% more radiating surface area, superbly integrated and authoritative bass performance, and a nominal sensitivity of 91dB. Furthermore, the ESL is capable of being powered effortlessly by both high-end receivers and amplifiers alike.

The ElectroMotion ESL 's MicroPerf XStat electrostatic panel is housed in a radical aluminum and composite AirFrame™ similar to those found in MartinLogan's flagship products. AirFrame technology stiffens the electrostatic panel without obstructing playable surface area or interfering with the ambient sound radiation of the dipole. At the same time, an AirFrame provides electrical and acoustical isolation, minimizing intermodulated distortion caused by vibration and resonance, improving imaging, low-level sonic detail, accuracy, and efficiency. MicroPerf design optimizes the individual holes of the ElectroMotion ESL 's electrostatic panel. The MicroPerf design substantially increases the radiating area of the diaphragm, compared to previous generations, without compromising structural integrity. The resulting increase in output capacity and efficiency allows the ElectroMotion ESL 's panel to enjoy a substantial leap in bandwidth and dynamics without growing larger. For example, the EM -ESL XStat electrostatic panel offers 129 square inches of radiating sound surface on both front and rear and a sensitivity of 91 dB into 6 ohms. The Aerius, well-received in its day, had only 93 square inches and a sensitivity of 89 dB into 4 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 panel's performance characteristics. However, as a natural byproduct of tighter construction tolerances, it increases the panel's visual transparency. The new EM- ESL XStat panel is so visually transparent that it almost disappears when you're sitting and listening.

CLS ^™ XStat Transducer

One of MartinLogan's original innovations, CLS™ (Curvilinear Line Source) technology, has been an essential ingredient in every electrostatic loudspeaker we've produced, and the ElectroMotion ESL is no exception. Proprietary manufacturing methods allow the electrostatic panels to be constructed as cylindrical sections. Their gentle horizontal curvature solves the problem of achieving 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 equally from the front and back of its diaphragm, but the outputs are in opposite phase. Consequently, sound waves propagating toward the sides meet at the speaker's edge and cancel each other out. This, combined with the relatively large size of the ElectroMotion ESL 's electrostatic panel, results in very low output to the sides compared to a conventional speaker, which in turn minimizes sidewall reflections that tend to muddy sonic detail and stereo imaging. While the reduced output to the sides contributes to the astonishing clarity for which electrostats are revered, energy reflected from the wall behind the speaker opens up and deepens the sound.

Superb bass integration

The ElectroMotion ESL features a unique Vojtko™ filter topology utilizing custom air core voice coil and low DCR steel laminate inductors, series-type polyester film capacitors, and parallel-type low DF electrolytic capacitors to seamlessly blend the audio output from the high and mid-frequency electrostatic panel to the low-frequency woofer.

A precision-engineered, high-excursion, 8-inch, fiber-optic-doped, fiber-optic cone woofer was designed exclusively for The EM- ESL by MartinLogan's in-house engineering team. This woofer precisely optimizes the cone suspension and magnetic flux field to produce high bass output and simultaneous, precise midrange response. The custom woofer's rigid, lightweight diaphragm eliminates cone flexure and minimizes response time to achieve remarkably low distortion approaching that of MartinLogan's award-winning electrostatic panel design.

Easy connections, sturdy adjustable feet

Convenient push-fit speaker terminals and curved inserts help guide speaker wire effortlessly. The rubber end caps on the terminals are also removable for use with banana plugs instead of bare wire. The EM- ESL comes with sturdy 3/8-16 ETC™ spikes, which can be used to adjust vertical wave throw, improve stability on thick carpet, and create a tighter coupling between the speaker and the floor for tighter, more detailed bass performance. Each spike is conveniently covered with removable rubber caps if you prefer not to use spikes.

The love of good music

Who we are

We chose this business out of passion, and we continue it with passion. Our experience in music reproduction and live music constantly guides us in the choices we make regarding the products we select for you.

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