Launched in 1983

Price when discontinued: Customizable, starting at
$5,000 per pair


Sound Judgment

The simple, sculptured lines of the cabinet are the first thing you notice. It's not, however, until you listen to the unforgettable purity of sound that your can truly appreciate why the MartinLogan Monolith loudspeaker has become a classic, and why it remains one. The Monolith is the result of MartinLogan's early breakthrough thinking in electrostatic technology. The clarity of its sound bathes the entire listening area with all the exquisite truth and beauty of live performance. When you listen, it's easy to understand why our loudspeakers are not priced for everyone. We built them to be the finest in the world. Sound judgment will tell you that this is what you deserve.

Frequency Response

28–24,000 Hz +2db,-3dB

Horizontal Dispersion


Vertical Dispersion

48" (121.92cm) line source

High Frequency Transducer

48" (121.92cm) CLS™ electrostatic transducer

Low Frequency Transducer

12" (30.5) high-excursion, super light, high-rigidity cone with extended thow drive assembly. Electrically tapered, contoured to offset magnetic nonlinearities. Correct blending between ESL and dynamic subwoofer occurs without complex servo-control requirements.


90 dB watt/meter

Recommended Amplifier Power

20‒500 watts per channel

Crossover Frequency

100 Hz centre. 6dB per octave, phase coherent.


100% oxygen free copper coils. Polypropylene bypass capacitors.


5-way binding posts


165 lbs. (74.9 kg)


72" × 25" × 13"
(182.9cm × 63.5cm × 33cm)

Specifications are subject to change without notice.

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