Focus ESL C18

Focus ESL C18 is a versatile performance shelf or wall-mounted electrostatic center channel speaker, bringing realism into focus with an 18-inch wide XStat CLS electrostatic transducer with the detailed imaging capability of a Folded Motion tweeter, along with twin 6.5-inch woofers, capable of deep bass reproduction down to 50Hz.

Focus ESL C18

The painters of the Dutch Golden Age produced photo-realistic masterpieces 300 years before cameras were invented. They focused your attention using a bright, otherworldly light. Even in their most intimate portraits, the riveting light draws your eye.

This kind of sensory focus is the key to realism in your home theater, as well. It’s the job of your center channel loudspeaker to anchor action and dialogue to your screen. It must reproduce detailed high frequency information to reinforce imaging, and also blend seamlessly with the other speakers in your surround-sound system to envelope you in a realistic soundstage.

MartinLogan presents a new Masterpiece of home theater realism: the Focus ESL C18 Center Channel Loudspeaker, an electrostatic center channel speaker designed for wall-mounted flexibility.

Specifications

Specifications are subject to change without notice

Frequency Response 50–23,000 Hz ±3dB
Recommended Amplifier Power 50—400 watts per channel
Horizontal Dispersion 30°
Sensitivity 90 dB/2.83 volts/meter
Impedance 4 Ohms Compatible with 4, 6, or 8 Ohm rated amplifiers.
Crossover Frequency 470, 3000 Hz
High Frequency Transducer 1″ x 1.4″ (2.6cm x 3.6cm) Folded Motion Transducer with 5.25″ x 1.75″ (13.3cm x 4.4cm) diaphragm.
Mid Frequency Transducer Patented CLS™ XStat™ electrostatic transducer » Panel Dimensions: 7.5″ x 18″ (19 x 45.7cm) » Radiating Area: 135 in² (868 cm²)
Low Frequency Transducer Two 6.5″ (16.5cm) cast basket, high excursion, rigid aluminum cone 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
Audio Controls Position: On-Wall / Off-Wall
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.
Weight 50 lbs. (22.7 kg)
Dimensions (Table Mount) 9.6″ x 43.2″ x 9.2 ” (24.4cm x 109.7cm x 23.4cm)
Dimensions (Installed On Wall, Flat Mount) 9.4″ x 43.2″ x 9.6″ (23.9 cm x 109.7cm x 24.5cm)
Dimensions (Installed On Wall, Angled) 11.3″ x 43.2 ” x 11.5 ” (28.8 cm x 109.7cm x 29.1 cm)