Legendary MartinLogan Sound

MartinLogan speakers are known for their exceptional articulation, detail and realism, regardless of the listening environment. By using advanced thin-film technologies and Controlled Dispersion, MartinLogan delivers a unique and unparalleled listening experience that is not commonly found in other speakers.

Gen2 Obsidian Folded Motion Tweeter S

The Gen2 FMT S offers effortless performance, unmatched by conventional technologies. By folding thin film material, MartinLogan is able to pack more surface area into a small space. Large surface area, light weight and low excursion means an incredibly fast and responsive tweeter capable of reproducing the most nuanced content with stunning detail and clarity.

Folded Motion^® Waveguide

Enhances the Controlled Dispersion of the tweeter, blanketing the listening area with incredible detail and precision. Avoids performance robbing room reflections and provides a more consistent sound across a wider seating area.

Aluminum Mid-Bass Driver

Using trickle down technology from MartinLogan’s own Motion XT and Motion Series, the B1 uses the exceptional properties of Aluminum to maximize clarity, detail, and output from the mid-bass driver.

Frequency Response

48 Hz - 23 kHz ± 3 dB

Tweeter Dispersion (horizontal x vertical)

90° x 90°

Recommended Amplifier Power

15 - 100 watts

Sensitivity

89 dB

Impedance

5 ohms

High Frequency Driver

0.94” x 1” (2.4 x 2.5cm) Gen2 Folded Motion® Tweeter S with 3.5 in2 (22.6 cm2) diaphragm.

Crossover Frequency

3,400 Hz (2-way)

Mid-Frequency Drivers

5.5” (14cm) aluminum cone with stamped steel basket. Non-resonant asymmetrical chamber format. Unibody cone construction.

Cabinet

Rear Ported

Binding Post Inputs

5-way Binding Posts (Non Bi-Wire)

Weight

11.5lbs / 5.2kg

Dimensions (H x W x D)

13-11/16” x 7-1/4” x 9-1/2”
34.6cm x 18.4cm x 24.05cm

Finish

Black, Walnut, and Satin White