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MartinLogan ElectroMotion ESL (Pr.) 8' Electrostatic Floor Speakers

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Top Features
  • 8' high-excursion woofer
  • CLS

SKU# 115337


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MartinLogan ElectroMotion ESL (Pr.) 8-inch Electrostatic Floorstanding Speakers

Looking for uncompromising sonic quality? The ESL creates amazingly nuanced, dynamic audio, with minimal distortion. The speaker's superb Vojtko

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.

ElectroMotion 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. The Aerius, well received its day, only had 93 square inches and a sensitivity of 89dB 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 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.

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.

Your EM-ESL speakers are provided with an automatic Limited 90 Day Warranty coverage. You have the option, at no additional charge, to receive a Limited 5 Year Warranty coverage. To obtain the Limited 5 Year Warranty coverage you need to complete and return the Certificate of Registration, included with your speakers, and pro- vide a copy of your dealer receipt, to MartinLogan within 30 days of purchase. For your convenience MartinLogan also offers online warranty registration at www.martinlogan.com.
Q & A
Features & Specs

Additional Information

Product ID 115337
UPC 99883
Brand MartinLogan
SKU 115337
Manufacturers Part Number ElectroMotion ESL (Pr.)
Detailed Specifications
  • Frequency Response: 42-22,000 Hz | ±3dB
  • Dispersion: 30° x 34" (71cm) line source
  • Sensitivity: 91 dB/2.83 volts/meter
  • Nominal Impedance: 6 Ohms, 1.6 @ 20kHz. Compatible with 4, 6 or 8 ohm rated amplifiers.
  • Recommended Amplifier Power: 20-300 watts per channel
  • Crossover Frequency: 500Hz
  • High Frequency Transducer: XStat™ CLS™ electrostaic transducer
  • Low Frequency Driver: 8" (20.3cm) high excursion, high-rigidity paper cone with extended throw drive assembly, non-resonance asymmetrical chamber format; bass reflex
  • Weight: 35.5lbs.
  • Overall Dimensions (HxWxD): 52.1 x 9 x 16.3"
  • Manufacturer Warranty 5 Year Limited
    Product Weight 35.5
    Color Black
    Height (inches) 52.1

    MartinLogan Warranty Included:

    5 Year Limited