MartinLogan Focus ESL C18 Electrostatic Center Channel Speaker

Extraordinary Dialogue. Uncompromising Home Theater Performance.

Experience the remarkable realism of MartinLogan's Masterpiece Series with the Focus ESL C18, a premium hybrid electrostatic center channel loudspeaker engineered to bring every voice, detail, and cinematic moment into stunning focus.

At its heart is an 18-inch-wide XStat CLS electrostatic panel, delivering the transparency, speed, and natural midrange reproduction that define MartinLogan's legendary sound.

A precision Folded Motion tweeter adds exceptional high-frequency detail, while dual 6.5-inch aluminum-cone woofers provide powerful, articulate bass response extending down to 50 Hz.

The result is an extraordinarily lifelike center channel that anchors dialogue and on-screen action with precision, even in demanding home theater systems.

Designed for Your Theater

Unlike many large electrostatic center channel speakers, the Focus ESL C18 offers remarkable installation flexibility.

Mount it above or below your television or projection screen using the included adjustable wall-mounting hardware, or position it on a suitable shelf or stand.

An integrated On-Wall/Off-Wall acoustic contour switch optimizes the speaker's performance for its placement.

Key Features

• 18-inch XStat CLS electrostatic panel for exceptional vocal realism

• Folded Motion tweeter for detailed high-frequency reproduction

• Dual 6.5-inch aluminum-cone woofers

• Frequency response extending to 50 Hz

• Premium Vojtko crossover network

• On-Wall/Off-Wall acoustic contour adjustment

• Included adjustable wall-mounting hardware

• Premium WBT nextgen five-way binding posts

• Designed to complement MartinLogan Masterpiece Series loudspeakers

• Available in multiple premium finishes

Technical Specifications

Speaker Type: Three-way hybrid electrostatic center channel
Frequency Response: 50 Hz – 23 kHz (±3 dB)
Electrostatic Panel: 7.5" × 18" XStat CLS
Electrostatic Radiating Area: 135 square inches
Tweeter: 1" × 1.4" Folded Motion transducer
Woofers: Two 6.5" high-excursion aluminum-cone drivers
Sensitivity: 90 dB / 2.83V / 1m
Nominal Impedance: 4 ohms
Recommended Amplifier Power: 50–400 watts/channel
Crossover Frequencies: 470 Hz and 3,000 Hz
Horizontal Dispersion: 30°
Dimensions (Shelf Placement): 9.6" H × 43.2" W × 9.2" D
Weight: 50 lbs
Connections: WBT nextgen five-way binding posts
Mounting: Wall-mounted or shelf/stand placement
Sold Individually

Experience MartinLogan at Audible Elegance

At Audible Elegance in Cincinnati, we specialize in extraordinary home theater systems designed for exceptional sound and effortless enjoyment.

Our team can help you integrate the Focus ESL C18 with MartinLogan electrostatic loudspeakers, premium amplification, and a professionally designed surround sound system.

Visit our Montgomery showroom to discuss your home theater project and experience the difference that exceptional audio can make.

Shop Online. Hear It Here.