MartinLogan Expression ESL 13A Floorstanding Speaker - pair
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).
EXPRESSIONESL 13AAudio is both real, and imagined. There is the fact of the sound. And there is the feeling that the sound arouses within us. This feeling is the inspiration behind the newExpression ESL 13A. Like the Expressionist masterpieces, this artful presentation of audio is focused solely on intensifying your emotional experience. Its a virtually transparent audio performance that transports you to a new landscape of the senses. | |
The Art of Emotion in AudioThe 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 MartinLogans 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 AirFrameBladeconstruction; 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. Its one more way MartinLogan innovation improves your listening experience in any room. |
Ultra-Rigid AirFrame Blade DesignExpression ESL 13A XStat panels are joined to their speaker cabinets using MartinLogans redesigned AirFrameBladeconstruction, 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 AirFrameBladerail 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 panels 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 AirFrameBladedesign enhances imaging, low-level sonic detail, accuracy, and speaker efficiency. | ||
Powerful Dual 300-Watt Class-D Amplification with 24-Bit VojtkoDSP EngineThe performance of Expression ESL 13A has been reconsidered from the ground up. Taking full advantage of innovations like PoweredForce Forward and ARC Technology, and the integration of the electrostatic panel with the woofer array, required daring thinking about power and efficiency. Our new dual 300-watt amplifiers produce clean power, in a small space, more efficiently than ever before. They enable the effortless delivery of exhilarating dynamic impact, with plenty of overhead. Superior, reliable Class-D technology means theres virtually no energy lost between the amplifiers and the woofers. | ||
| MartinLogans dedicated in-house design and engineering team created an extremely precise 24-bit Vojtko Digital Signal Processing (DSP) engine to work in conjunction with these powerful new amplifiers. It gives these speakers the ability to deliver detailed low-frequency performance reaching down to 22Hz. Advanced DSP allows complete control and performance optimization over the low pass filters, woofer equalization and limiting functions, all of which are mapped mathematically in the digital domain. Complete control of the signal, along with instant response, huge amounts of clean power, and efficient, integrated performance, paints an original picture of lifelike audio performance. | ||
Specifications
Specifications are subject to change without notice
Frequency Response | 2423,000 Hz 3dB |
Recommended Amplifier Power | 20600 watts per channel |
Horizontal Dispersion | 30 |
Vertical Dispersion | 44" (112cm) line source |
Sensitivity | 91 dB/2.83 volts/meter |
Impedance | 4 Ohms, 0.7 at 20kHz Compatible with 4, 6, or 8 Ohm rated amplifiers. |
Crossover Frequency | 300Hz |
High Frequency Transducer | XStat CLS electrostatic transducer Panel Dimensions: 44" x 13" (112 x 33cm) Radiating Area: 572 in (3,696 cm ) |
Low Frequency Transducer | Two 10 (25.4 cm) cast basket, high excursion, rigid aluminium cone and extended throw drive assembly, non-resonance asymmetrical chamber format. |
Amplifier | Woofer: 2 x 300 watts/channel (4 ohms), 2 x 600 watts peak |
Room Correction (Bass Section) | Anthem Room Correction (ARC) ready (Sold Separately) |
Components | Custom-wound audio transformer, air core coils, polypropylene capacitors. 24-bit DSP based preamplifier (used with woofer amplifier). |
Audio Controls | Bass: 10 dB under 75 Hz Mid-Bass: 2 dB, 0 db, 2 db Light: On, Dim, Off ARC Room EQ: On, Off |
Signal Inputs | WBT-0703Cu nextgen 5-way binding posts feature a filigree signal conductor made from gold plated, nickel free, non- ferromagnetic, pure copper for high conductivity and fully insulated. Free from eddy current effects. |
Inputs | AC Power, RJ45 (for ARC), mini USB (for ARC) |
Power Draw | Idle: < 1W/channel Max: 500W/channel |
Lighting | LED intensity control: on, dim, off |
Weight | 103 lbs. (46.8 kg) |
Dimensions | 61.5" x 13.4" x 27.5 " (156.1cm x 33.9cm x 69.9cm) |
