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Expression ESL 13A is the artful presentation of audio focused solely on intensifying your emotional experience.

Featuring a 13-inch (CLS™) XStat™ electrostatic transducer, dual 10-inch

PoweredForce Forward™ woofers powered by dual 300-watt Class-D amplifiers, and controlled by a 24-Bit Vojtko

™ DSP Engine and ARC™ (Anthem Room Correction).

The Expression ESL 13A is part of the Masterpiece Series. It features a dual 10-inch woofer system with ARC-honed performance, for perfectly blended low-frequency response.

The groundbreaking integration of this woofer array with MartinLogan’s signature 13-inch wide XStat CLS Transducer, coupled with a powerful dual amplifier section, delivers an expressive and dynamic audio experience,

with less coloration. It reveals the pure emotional impact of your audio.

Look at the familiar elements of the classic MartinLogan electrostatic loudspeaker: Advanced MicroPerf stator technology, which allows for almost twice the exposed electrostatic

diaphragm surface as a traditional electrostatic panel of the same size. The panel is reinforced with rigid ClearSpar™ spacers, keeping an exact level of tension on the vacuum-bonded

diaphragm without obscuring the beautiful see-through design. Add the slender, pointed-arrow design of the new AirFrame™ Blade construction; a powerfully evocative composition creating a

harmonious connection between the panel and its woofer cabinet.

Now notice some radical refinements: Inspired by our own breakthrough design, we have reinvented the Expression ESL 13A woofer section, powered by new dual 300-watt Class-D

amplifiers, and controlled by a 24-Bit Vojtko™ DSP Engine and ARC™ (Anthem Room Correction).

Using two 10-inch laser-engineered low-distortion aluminum cone woofers in independently enclosed compact chambers, exclusive PoweredForce Forward™ bass

alignment technology controls the interaction between the rear-firing woofer and the wall behind that woofer. With smart phase-shifting logic, we minimize the effect that wall has on bass

information that might bounce back into the listening room. This uniform frequency response results in realistic bass effects you can feel. It’s one more way MartinLogan innovation improves your listening experience in any room.

New Ultra-Rigid AirFrame Blade Design

Expression ESL 13A XStat panels are joined to their speaker cabinets using MartinLogan’s redesigned AirFrame Blade construction, precision manufactured from an aerospace-grade extruded aluminum alloy.

This material, and this exclusive manufacturing process, makes the panels extremely rigid.

The bold, forward-moving styling of this AirFrame Blade rail system, narrow and strong in front, broad and forceful from the side, is a modern design statement. It never obstructs playable surface area or interferes

with the panel’s dipole sound radiation pattern. It also provides electrical and acoustical isolation, minimizing intermodulation distortion caused by vibration and resonance. The flowing lines emphasize the groundbreaking

integration of the panel itself with the compact woofer and amplifier section. The breathtaking AirFrame Blade design enhances imaging, low-level sonic detail, accuracy, and speaker efficiency.

New  PoweredForce Forward™ Bass Technology

PoweredForce Forward bass technology combines two MartinLogan audio innovations: PoweredForce, which allows small enclosures to accurately produce massive amounts of bass,

and ForceForward, which significantly reduces performance-robbing front-wall bass reflections.

PoweredForce Forward bass technology uses an advanced crossover topology with phase-timed woofers to minimize destructive reflected energy. By virtually eliminating front-wall bass

reflections and working in tandem with the panel, PoweredForce Forward Bass Technology gives you more placement flexibility, and enhances the true audio realism of your sound source.

Specifications

• Specifications are subject to change without notice
• Frequency Response24–23,000 Hz ±3dB
• Recommended Amplifier Power20—600 watts per channel
• Horizontal Dispersion30°
• Vertical Dispersion44" (112cm) line source
• Sensitivity91 dB/2.83 volts/meter
• Impedance4 Ohms, 0.7 at 20kHz Compatible with 4, 6, or 8 Ohm rated amplifiers.
• Crossover Frequency3

more  details :https://www.martinlogan.com/en/product/expression-esl-13a

Review 

https://www.absolutesounds.com/pdf/main/press/HFN_MartinLogan%20Expression%2013A_lowres.pdf

• Worldwide shipment service 
• Free ship cost in Europe for order over 500€ (except speakers, we offer  50% of ship cost)
• Free ship cost Worldwide  for order over  2000€ (except speakers, we offer  50% of ship cost )