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MartinLogan unveils the Classic ESL 9, its newest modern Masterpiece. All the familiar elements of MartinLogan’s flagship ESL series are here, with some revolutionary refinements. The heart of this exceptional loudspeaker is its 9.2-inch-wide Curvilinear Line Source (CLS) XStat vacuum-bonded electrostatic transducer. Advanced MicroPerf stator technology reveals more of the diaphragm surface area than any other electrostatic panel in this size class, efficiently increasing the narrow panel’s output. Ultra-rigid AirFrame Blade construction reduces performance-robbing vibrations, its shape creating an expressive alignment with the woofer cabinet. Deep bass is rendered with unflinching accuracy and authority by dual 8-inch low-distortion, high-excursion aluminum cone woofers in a beautifully sculpted enclosure.

Martin Logan Classic ESL 9 - Pair

C$9,499.98 Regular Price
C$8,549.98Sale Price


    Frequency Response

    34–23,000 Hz ±3dB 

    Horizontal Dispersion


    Vertical Dispersion

    44" (112cm) line source 

    High Frequency Transducer

    XStat™ CLS™ electrostatic transducer

    » Panel Dimensions

    44" × 9.2" (112 × 23cm)

    » Radiating Area

    405 in2 (2,576 cm2)

    Low Frequency Transducer

    Two 8” (20.3 cm) cast basket, high excursion, rigid aluminium cone woofers with extended throw drive assembly, non-resonance asymmetrical chamber format


    90 dB/2.83 volts/meter


    4 Ohms, 0.8 at 20kHz. Compatible with 4, 6, or 8 Ohm rated amplifiers.

    Recommended Amplifier Power

    20‒400 watts per channel

    Crossover Frequency



    Custom-wound audio transformer, air core coils, low DCR steel laminate coils, polyester capacitors

    Signal Inputs

    Custom 5-way bi-wire tool-less binding posts

    Power Draw

    Max: 2W per channel Standby: <1W per channel


    78 lbs. (35.4 kg)


    59.8" × 10.4" × 25.4"
    (152cm × 36.4cm × 64.6cm)




    Finish Options:

    Gloss Black, Walnut and Dark Cherry.

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