Martin LoganSummit XMartin Logan Summit X "Store Demo" Speakers with Full WarrantyThese amazing speakers are being sold as an open box "dealer demo" in mint condition. Currently setup in a showroom. Rarely used, never sold. Original packaging included. (Retail: $14,995) Summit...9495.00

Martin Logan Summit X "Store Demo" Speakers with Full Warranty [Expired]

no longer for sale

These amazing speakers are being sold as an open box "dealer demo" in mint condition. Currently setup in a showroom. Rarely used, never sold. Original packaging included. (Retail: $14,995)

Summit X takes everything that was great about the original Summit and makes it better. Vojtko Voiced™ with a redesigned crossover and electronics, Summit X brings the magical electrostatic mid-range clarity of the CLX to a smaller package. Controlled Dispersion PoweredForce woofers tailor output to provide a low-frequency dispersion pattern at the crossover point mimicking that of our Controlled Dispersion XStat transducers. This breakthrough design provides dynamic, room filling bass at the lowest frequencies. By subtly shifting woofer phasing as it approaches the crossover frequency we minimize side-wall reflections and reduce problematic room interactions, while achieving seamless integration between the woofer and electrostatic transducer.

A flexible foot configuration allows listeners to easily adjust the controlled vertical dispersion of Summit X from -1° to 11°. The result? A superb sounding speaker that is easier than ever to integrate into every room!

Key to the Summit X's revolutionary performance is our advanced XStat™ electrostatic panel, which covers most of the audible range, from the midrange to beyond the limit of human hearing, with unprecedented accuracy. A perfectly integrated Controlled Dispersion PoweredForce™ woofer section—the most advanced woofer technology available in a full-range speaker—supplies an authoritative bass foundation from its twin 10-inch aluminum-cone drivers, effortlessly extending the Summit X's response to frequencies below where even most subwoofers reach. Yet the Summit X never, ever sounds heavy.

Nor does it look heavy. In fact, it almost seems to float in the air. We believe you'll agree that the Summit X looks nearly as good as it sounds—maybe because, like all designs, form follows function.

MartinLogan hybrid electrostats are a special breed of speaker, and the Summit X is the most special of them all. Hearing is believing.

Technical Specifications

Frequency Response

24–23,000 Hz ±3dB

Horizontal Dispersion


Vertical Dispersion

44" (112cm) line source

High Frequency Transducer

XStat™ CLS™ electrostatic transducer

» Panel Dimensions

44" × 11.3" (112 × 29cm)

» Radiating Area

497 in2 (3,248 cm2)

Low Frequency Transducer

Two 10" (25.4cm) cast basket, high excursion, aluminum cone with extended throw drive assembly, non-resonance asymmetrical chamber format


Woofer: 2 × 200 watts/channel (4 ohms)


91 dB/2.83 volts/meter


4 Ohms, 0.8 at 20kHz. Compatible with 4, 6, or 8 Ohm rated amplifiers.

Recommended Amplifier Power

20‒600 watts per channel

Crossover Frequency



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

Audio Controls

±10dB at 25Hz
±10dB at 50Hz


Control knob to adjust illuminated blue hood logo, back control panel lighting & ground effects lighting


Custom 5-way binding posts

Power Draw

Standby: <1W/channel
Max: 350W/channel


75 lbs. (34 kg)


60.9" × 12.7" × 21.3"
(154.8cm × 32.2cm × 54cm)

Sale is ONLY for Martin Logan Summit X (Pair) - Black Ash 

We are an Authorized Martin Logan Dealer
Includes Full Factory Warranty  

*Please feel free to contact us with any questions or additional information.

Seller Information

psweets24  Verified Dealer

Last 12 months

Member since April 2016

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