Theater i


Launched in 2003

Price when discontinued: $2,795 each

Theater i

The Reference Electrostatic Center Channel

From the beginning, the center channel has been recognized as the most critical element in any home theater and multi-channel music system. It grabs your attention, grounds the cinematic experience, and holds you in the moment. Designed and executed precisely, the center channel bridges the main channels and provides a seamless sound stage that tracks the cinematic environment—to perfection. This is exactly what MartinLogan Theater i 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 Generation 2 CLS™ electrostatic transducer

Low Frequency Transducer

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


90 dB/2.83 volts/meter


4 Ohms, 3.1 at 20 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


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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