Engineering Genius

What makes the Motion Series sound so amazing? MartinLogan's dedicated in-house engineering team started by utilizing and refining the most advanced, compact technologies and combining them with innovative engineering. The result is an emotionally engaging sound that rivals (and most times trounces) traditional loudspeakers of similar size and price.

Folded MotionTweeters

The signature Folded Motion tweeters utilize extremely low mass diaphragms that "squeeze" air, and require significantly less excursion than the typical 1-inch dome tweeter, which drastically minimizes distortion while providing a lightning fast response time. The increased surface area also provides a wide, yet controlled sound dispersion to create a realistic and carefully etched sound stage.

Specifications

Frequency Response:
7025,000 Hz 3 dB

Recommended Amplifier Power:
20160 watts per channel

Horizontal Dispersion:
160

Vertical Dispersion:
80

Sensitivity:
91 dB/2.83 volts/meter

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

Crossover Frequency:
4,500 Hz

High Frequency Transducer:
Two 1" 1.4" (2.6cm 3.6cm) Folded Motion Transducer with 5.25" 1.75" (13.3cm 4.4cm) diaphragm

Low Frequency Transducer:
5.25" (13.3cm) paper cone with cast aluminum basket. Non-resonant asymmetrical chamber format. Rigid structured dust cap to reduce cone break-up modes. Folded bass reflex port.

Components:
Custom air core coil inductors. Polyester film capacitors in series and low DF electrolytic capacitors in parallel. Overall system thermal/current protection.

Inputs:
Push style with banana jacks

Weight:
9.5 lbs. (4.4 kg)

Dimensions:
11.1" x 12" x 6"
(28.2cm x 30.5cm x 15.2cm)