Description
MartinLogan 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.
ON THE WALL OR ON THE SHELF, THERE HAS NEVER BEEN A MORE ADAPTABLE ELECTROSTATIC SPEAKER.
The goal is flexibility and performance, and the Focus ESL C18 achieves both. The sleek, sculpted enclosure is solidly braced, resonance-free and well-balanced. It is designed to be mounted above or below your screen. Heavy-duty wall-mounting bracket hardware is included, and the innovative brackets accommodate multiple mounting angles, so you can aim the Focus ESL C18 directly at your listening position for a perfectly aligned center channel presentation.
THE FOCUS ESL C18 IS ALSO AT HOME ON A SHELF OR FLOOR STAND.
Toggle the convenient “On-Wall/Off-Wall” acoustic contour switch to instantly optimize performance for any mounting position. This feature automatically modifies response to compensate for wall boundaries that may reinforce or inhibit bass output. The result is room-filling center channel reproduction with lifelike full-range verve.
YES, A WALL-MOUNTABLE ELECTROSTATIC CENTER CHANNEL.
What makes the Focus ESL C18 a masterpiece of center channel design and engineering is its surprising ability to be wall-mounted. And while the Focus ESL C18 boasts a depth of just 9.6-inches when mounted flat on a wall, it is packed with technology that delivers the detailed audio you demand from a superior center channel loudspeaker.
PREMIUM WBT BINDING POSTS
Connect your electronics safely and securely using 5-Way audiophile WBT Binding Posts. Their pure copper connection plate is highly conductive and free from eddy current effects. These posts are insulated for shock protection, and fully damped against vibrations. They give you plenty of room for large-gauge professional speaker connections.
PRECISION-BUILT ADVANCED-TOPOLOGY VOJTKO CROSSOVER
Vojtko Voiced, the advanced crossover in Focus ESL C18 add enhanced mid-range clarity to this artful composition. Carefully hand-built using only the finest polypropylene capacitors and air-core coils, the crossover employs MartinLogan’s proprietary Vojtko topology for vanishingly low distortion and seamless driver/ESL integration. This precision-tuned network preserves even the most microscopic sonic nuances while handling the full dynamics of any source.
EXCLUSIVE FOLDED MOTION TWEETER
Situated just behind the electrostatic panel, fixed in a uniquely designed housing, sits a MartinLogan exclusive Folded Motion Tweeter. The low-mass diaphragm of the Folded Motion Tweeter minimizes distortion, while its short excursion length expedites lightning fast high frequency response. The 1 x 1.4-inch Folded Motion Tweeter in the Focus ESL C18 center channel speaker has a diaphragm area of 5.25 x 1.75-inches. The combined performance characteristics of the electrostatic panel and the Folded Motion Tweeter ensure precision and hyper-realistic front-stage blending.
FOCUS ESL C18 SPECIFICATIONS
Frequency Response
50–23,000 Hz ±3dB
Recommended Amplifier Power
20—300 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)
