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The MartinLogan ESL9 - A MASTERPIECE OF DESIGN & ENGINEERING.
Distilling nearly forty
years of innovative audio design and engineering into a startlingly
fresh loudspeaker ideal.
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 XStat™ Curvilinear Line Source (CLS™)
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, highexcursion aluminum cone woofers in a beautifully sculpted enclosure.
System Frequency Response
34–23,000 Hz ± 3db
Recommended Amplifier Power
50–400 watts per channel at 4 Ohms
Horizontal: 30 degrees
Vertical: 44-inch (112 cm) line source
90 dB / 2.83 volts / meter
Nominal: 4 ohms, 0.8 ohms @ 20 kHz
High/Mid Frequency Driver
XStat CLS Electrostatic transducer
Panel dimensions: 44 x 9.2 inch (112 x 23.4 cm)
Radiating area: 405 in2 (2,621 cm2)
2x 8” (20.3cm) cast basket, high excursion, rigid aluminum
cone with extended throw drive assembly, non-resonance
asymmetrical chamber format.
Custom-wound audio transformer, air core coils, low DCR
steel laminate coils, polyester capacitors
Custom 5-way bi-wire tool-less binding posts
Max: 2W per channel
Standby: <1W per channel
78 lbs. each (35.4 kg)
Size (H x W x D)
59.8 x 10.4 x 25.4-inch (152 x 26.4 x 64.6 cm