Expression ESL 13A

Expression ESL 13A

Audio 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 new Expression ESL 13A. Like the Expressionist masterpieces, this artful presentation of audio is focused solely on intensifying your emotional experience. It’s a virtually transparent audio performance that transports you to a new landscape of the senses.

The Art of Emotion in Audio
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.

System Frequency Response: 24–23,000 Hz ±3 dB

Recommended Amplifier Power: 50–600 Watts per channel at 4 ohms

Horizontal: 30 degrees
Vertical: 44-inch (112 cm) line source

Sensitivity: 91 dB / 2.83 volts / meter

Nominal: 4 ohms, 0.7 ohms @ 20 kHz

Crossover Frequency: 300 Hz

High/Mid Frequency Driver: XStat CLS Electrostatic transducer

Panel dimensions: 44 x 13-inch (112 cm x 33 cm)
Radiating area: 572 in2 (3,696 cm2)

Two 10-inch (25.4 cm) cast basket, high excursion, rigid aluminum cone with 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 (Woofer System)
Anthem Room Correction (ARC™) ready
(Sold Separately)

Custom-wound audio transformer, air core coils, polypropylene capacitors. 24-bit DSP based preamplifier (used with woofer amplifier)

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-0703 Cu 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

AC Power, RJ45 (for ARC), mini USB (for ARC)

Power Draw
Max: 500 W per channel
Standby: 1 W per channel

103 lbs. each (46.8 kg)

Size (H x W x D)
61.5 x 13.4 x 27.5-inch (156.1 cm x 33.9 cm x 69.9 cm)
ManualManual Original
CriticasHi-Fi News

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. 
Expression ESL 13A
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.
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