Stage X

Ultimate-Performance Electrostatic Center Speaker

The world's most advanced center-channel speaker, Stage™ X is an ideal home theater companion to our other XStat™-based loudspeakers.

Designed primarily to serve as the center in a home theater incorporating other XStat™-based MartinLogan electrostatic speakers, Stage™ X is versatile enough to handle left-, right-, and surround-channel duties as well. Its dual 6.5-inch aluminum-cone woofers, Folded Motion tweeter, and advanced Vojtko™ crossover seamlessly integrate a solid bass foundation with the astonishingly transparent, detailed midrange and treble produced by its XStat panel. A single-pivot bracket/stand facilitates set-top, shelf, on-wall, or on-floor placement.

Launched in 2013

Price when discontinued:


MartinLogan Stage X Electrostatic Hybrid Center Channel Speaker

"Being a huge fan of electrostatic speakers, I have always been worried about dealing with the center channel, because there weren't any electrostatic center channel speakers available that covered the high frequencies as well as the midrange. I didn't have the opportunity to test the original Stage version of this speaker, but I can say that the Stage X is one superb-sounding center channel, with everything above 450 Hz being covered by flat panel speaker technology. Having the ESL portion in the midrange is a definite plus, as this is the most important region of the audible spectrum"

—John Johnson, Secrets of Home Theater & High Fidelity
Read the full review»

MartinLogan Montis and StageX Speaker Review

"The MartinLogan Montis Hybrid Electrostatic Loudspeakers can rightfully be expected to perform exceptionally as stereo music listening speakers, and they do. Mated with the StageX center channel speaker, they can form the heart of a smashing fine home theater system. I can report without reservation that these speakers are excellent choices for either type of duty… The user who wishes for a quick setup will get very good results. And the user seeking audio perfection will find few loudspeaker “tools” to work with like the Montis at anywhere near the price range that are more likely to please."

—Wayne Myers, Home Theater Shack
Read the full review»


Specifications are subject to change without notice

Frequency Response

69–22,000 Hz ±3dB

Recommended Amplifier Power

20‒500 watts per channel

Horizontal Dispersion



90 dB/2.83 volts/meter


4 Ohms . Compatible with 4, 6, or 8 Ohm rated amplifiers.

Crossover Frequency

450, 2700 Hz

High Frequency Transducer

One 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" × 18" (19.1 × 45.7cm)
» Radiating Area: 135 in2 (873 cm2)

Low Frequency Transducer

Two 6.5" (16.5 cm) cast basket, aluminum cone with extended throw driver assembly, non-resonant asymmetrical chamber format


Custom-wound toroidal audio transformer, air core coils, polypropylene capacitors


Custom 5-way binding posts


39 lbs. (17.7 kg)

Dimensions (mounting bracket/stand beneath speaker)

12" × 34.6" × 10.3"
(30.4cm × 87.9cm × 26.1cm)

Dimensions (without mounting bracket/stand)

9" × 34.6" × 10.3"
(22.7cm × 87.9cm × 26.1cm)

Customer Reviews For Stage X

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  • Tuesday, July 17, 2018

So I'm putting together a Home Theater based on Summit, 3 pairs of Motion XL16 and now the Stage X to complete the package. Wow, the match is amazing. The Stage is the first center I've heard that really anchors the dialog, voices are so crystal clear.

Brown Mamba

  • Saturday, February 16, 2013

Stage X AMAZING!!!!!
This is the best purchase I have ever made. The detail in sound from this speaker is amazing!!! As you know, the center channel is the most important speaker in a system and this one does not disappoint. Totally worth the price.