Martin Logan Expression ESL 13A Hybrid Electrostatic Speakers – Pair



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  • 44″ x 13″ XStat™ CLS™ Transducer
  • 24—23,000 Hz ±3dB Frequency Response
  • Dual 10-inch PoweredForce Forward™ Woofers
    with Dual 300W / Channel Amplifiers
  • 24-bit Vojtko™ DSP Engine
  • Anthem Room Correction (ARC™) ready
SKU: ml-eesl13ahes-conf Categories: , Tag: Brand:


Frequency Response 24–23,000 Hz ±3dB
Horizontal Dispersion 30°
Vertical Dispersion 44″ (112cm) line source
High Frequency Transducer XStat™ CLS™ electrostatic transducer
» Panel Dimensions 44″ × 13″ (112 × 33cm)
» Radiating Area 572 in2 (3,696 cm2)
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.
Room Correction (Bass Section) Anthem Room Correction (ARC™) ready (Sold Separately)
Amplifier Woofer: 2 x 300 watts/channel (4 ohms), 2 x 600 watts peak
Sensitivity 91 dB/2.83 volts/meter
Impedance 4 Ohms, 0.7 at 20kHz. Compatible with 4, 6, or 8 Ohm rated amplifiers.
Recommended Amplifier Power 20‒600 watts per channel
Crossover Frequency 300Hz
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
Lighting LED intensity control: on, dim, 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
Weight 103 lbs. (46.8 kg)
Dimensions 61.5″ × 13.4″ × 27.5″
(156.1cm × 33.9cm × 69.9cm)
Specifications are subject to change without notice.

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