Martin Logan EFX - In-Wall Speakers

Surround yourself with EFX

MartinLogan is proud to introduce the slimline EFX™ on-wall hybrid electrostatic loudspeaker, featuring XStat™ technology, which dramatically reduces cabinet size while setting new standards for efficiency, dynamics, and accuracy.

CLS ^™ XStat Transducer

Housed within an ultra-wide, radically extruded aluminum AirFrame™, the EFX’s new CLS XStat transducer builds on the legacy of MartinLogan’s electrostatics with the incorporation of advanced vacuum bonding and microPerf systems, providing even greater efficiency and precision.

Slim wall profile

If you won't settle for electrostats next to your new flat-screen TV, the EFX is the perfect solution at just 6.5 inches deep. Free up valuable floor space by mounting the EFX to the wall with the included wall brackets. The EFX is also the ultimate high-performance home theater surround speaker and complements MartinLogan's entire line of electrostatic speakers. The EFX rotates with the swivel wall bracket to easily focus your surround sound experience.

Advanced Vojtko Filter

Proprietary Vojtko filtering technology is employed in the EFX electrostatic transducer. This audiophile-quality network, derived from the CLX, is handcrafted with precision, point-to-point wiring, polypropylene capacitors, massive voice coils, and a custom-wound EI core transformer, impeccably preserving micro-acoustic subtleties while effortlessly handling the widest dynamic range contained within even the most demanding sound source.

Custom 5-way mandatory posts and low voltage power supply

MartinLogan's proprietary binding posts simplify connection and cable management. The EFX features custom 5-way binding posts and provides the ultimate in flexibility for connection and installation. To further simplify setup and cable management, the EFX features a low-voltage DC power supply that eliminates the need for a traditional, heavy IEC power cord.