Classic ESL 9 is your ticket to a life-changing experience with a masterpiece of audio performance. This completely passive design features a 9.2-inch (CLS™) XStat™ electrostatic transducer, dual 8-inch aluminum-Cone woofers, and custom 5-way bi-wire tool-less binding posts.

Specifications and Features:

• Frequency Response: 34–23,000 Hz ±3dB
• Recommended Amplifier Power: 20—400 watts per channel
• Horizontal Dispersion: 30°
• Vertical Dispersion: 44" (112cm) line source
• Sensitivity: 90 dB/2.83 volts/meter
• Impedance: 4 Ohms, 0.8 at 20kHz Compatible with 4, 6, or 8 Ohm rated amplifiers.
• Crossover Frequency: 380Hz
• High Frequency Transducer: XStat™ CLS™ electrostatic transducer » Panel Dimensions: 44" x 9.2" (112 x 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
• Components: 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
• Dimensions: 59.8" x 10.4" x 25.4 " (152cm x 26.4cm x 64.6cm)