MartinLogan Expression ESL 13A

Expression ESL 13A by MartinLogan 

Overview:

The MartinLogan Expression ESL 13A is a masterful blend of innovative audio technology and artistic design, delivering a listening experience that transcends sound and evokes deep emotional resonance. Featuring a 13-inch XStat™ CLS™ electrostatic transducer, dual 10-inch PoweredForce Forward™ woofers, and advanced ARC™ (Anthem Room Correction) technology, this speaker immerses you in pure, transparent sound. As part of MartinLogan's prestigious Masterpiece Series, it sets a new benchmark for performance and craftsmanship.

Purpose:

The Expression ESL 13A is crafted for audiophiles and home theater enthusiasts seeking unmatched audio realism and emotional impact. Whether for music or movies, it offers a vivid and dynamic soundstage, blending high-resolution electrostatic precision with robust, room-filling bass performance.

Design:

The Expression ESL 13A features a sleek, transparent XStat™ CLS™ electrostatic panel reinforced by ClearSpar™ spacers for superior rigidity and clarity. The panel is elegantly integrated into the advanced AirFrame™ Blade, a slender, arrow-like design that enhances stability and minimizes resonance. The cabinet houses dual aluminum-cone woofers powered by independent 300W Class-D amplifiers, delivering deep, distortion-free bass.

Key Features:

• Electrostatic Transducer: 13-inch XStat™ CLS™ panel with a radiating area of 572 in² for crystal-clear high frequencies and natural mids.

• PoweredForce Forward™ Bass: Dual 10-inch woofers with phase-shifting technology eliminate wall reflections for precise, tactile low-frequency performance.

• Anthem Room Correction (ARC™): Customizes bass response to your room’s unique acoustics for an optimized listening experience.

• Vojtko™ DSP Engine: 24-bit digital signal processing ensures seamless integration between the electrostatic panel and woofers.

• Premium Inputs: WBT-0703Cu nextgen™ 5-way binding posts crafted from pure copper for maximum signal conductivity.

Performance:

• Frequency Response: 24 Hz – 23 kHz ±3dB for full-range audio fidelity.

• Sensitivity: 91 dB/2.83 volts/meter for effortless sound projection.

• Impedance: Nominal 4Ω, compatible with a wide range of high-performance amplifiers.

• Horizontal Dispersion: 30°, ideal for precise imaging across a wide soundstage.

• Vertical Dispersion: 44" line source for uniform sound distribution.

SPL and Amplification:

• Amplifier Power: Dual 300W amplifiers per woofer, capable of 600W peak output, delivering robust bass dynamics.

• Crossover Frequency: 300 Hz for seamless integration between the electrostatic panel and woofers.

Dimensions and Installation:

• Overall Dimensions: 61.5" x 13.4" x 27.5" (156.1cm x 33.9cm x 69.9cm).

• Weight: 103 lbs. (46.8 kg), offering a sturdy build for superior performance.

• Connectivity: Equipped with AC power, RJ45, and mini USB inputs for ARC calibration.

Finishes:

The Expression ESL 13A combines elegant design with practical aesthetics, ensuring it complements any space. The ClearSpar™ spacers preserve the see-through electrostatic panel’s stunning visual appeal, blending seamlessly into modern interiors.