Launched in 1999

Price when discontinued: $2,595 each


Reference ESL Center Channel

From the beginning, the center channel has been recognized as the most critical element in any home theater system. It grabs your attention, grounds the cinematic experience, and holds you in the moment. Designed and executed precisely, the center channel bridges the theater main channels and provides a seamless sound stage that tracks the cinematic environment—to perfection. This is exactly what MartinLogan Theater was designed and manufactured to do—effortlessly.

Frequency Response

70–22,000 Hz ±3dB

Horizontal Dispersion


High Frequency Transducer

Three 1" (2.54) soft dome, controlled dispersion array

Mid Frequency Transducer

Patented CLS™ electrostatic transducer

Low Frequency Transducer

Two 6.5" (16.5cm) magnetically shielded. Non-resonance asymmetrical chamber format.


90 dB/2.83 volts/meter


Nominal: 4 Ohms
Minimum: 3.1 Ohms at 140 Hz. Compatible with 4, 6, or 8 Ohm rated amplifiers.

Recommended Amplifier Power

20‒500 watts per channel

Crossover Frequency

300, 3000 Hz


Custom wound audio transformer, air core coils, polypropylene capacitors


Custom 5-way binding posts


57 lbs. (26 kg)

Dimensions (without wall-mount/stand)

10.5" × 43" × 11.5"
(26.7cm × 109.2cm × 29.2cm)

Dimensions (with wall-mount/stand)

13" × 43" × 11.5"
(33cm × 109.2cm × 29.2cm)

Specifications are subject to change without notice.

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